打印反菱形图案的程序

2712

给定整数n，任务是打印2n-1行的逆菱形图案。 例子：

null
Input: n = 3Output:*** *****   ***     ***   ***** ***Input: n = 7Output:******* *************   ***********     *********       *******         *****           ***             ***           *****         *******       *********     ***********   ************* *******

方法：

  1. 全反菱形为2n-1行，输入为n。
  2. 程序分为两部分打印此图案：
    • 第一部分是n行菱形的上半部分。
    • 这一部分包括三部分——左三角形*、中三角形和右三角形*。
    • 第二部分是n-1排钻石的下半部分。
    • 这一部分还包括三部分——左三角形*、中三角形和右三角形*。
  3. 打印每个零件，获得所需的反菱形图案。

以下是上述方法的实施情况：

C++

// C++ Code to print
// the inverse diamond shape
#include<bits/stdc++.h>
using namespace std;
// Function to Print Inverse Diamond pattern
// with 2n-1 rows
void printDiamond( int n)
{
cout<<endl;
int i, j = 0;
// for top half
for (i = 0; i < n; i++) {
// for left *
for (j = i; j < n; j++)
cout<< "*" ;
// for middle " "
for (j = 0; j < 2 * i + 1; j++)
cout<< " " ;
// for right *
for (j = i; j < n; j++)
cout<< "*" ;
cout<<endl;
}
// for below half
for (i = 0; i < n - 1; i++) {
// for left *
for (j = 0; j < i + 2; j++)
cout<< "*" ;
// for middle " "
for (j = 0; j < 2 * (n - 1 - i) - 1; j++)
cout<< " " ;
// for right *
for (j = 0; j < i + 2; j++)
cout<< "*" ;
cout<<endl;
}
cout<<endl;
}
// Driver Code
int main()
{
// Define n
int n = 3;
cout<< "Inverse Diamond Pattern for n = " <<n;
printDiamond(n);
n = 7;
cout<< "Inverse Diamond Pattern for n = " <<n;
printDiamond(n);
} 





               










   JAVA  












                        


        


                                                     


        


                          


        


                                                                                






















                         // Java Code to print                       


                         // the inverse diamond shape                       


           


                         import                                     java.util.*;                       


           


                         class                                     GFG {                       


           


                                                 // Function to Print Inverse Diamond pattern                       


                                                 // with 2n-1 rows                       


                                                 static                                     void                                     printDiamond(                                     int                                     n)                       


                                                 {                       


                                                 System.out.println();                       


           


                                                 int                                     i, j =                                     0                                     ;                       


           


                                                 // for top half                       


                                                 for                                     (i =                                     0                                     ; i < n; i++) {                       


           


                                                 // for left *                       


                                                 for                                     (j = i; j < n; j++)                       


                                                 System.out.print(                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (j =                                     0                                     ; j <                                     2                                     * i +                                     1                                     ; j++)                       


                                                 System.out.print(                                     " "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (j = i; j < n; j++)                       


                                                 System.out.print(                                     "*"                                     );                       


           


                                                 System.out.println();                       


                                                 }                       


           


                                                 // for below half                       


                                                 for                                     (i =                                     0                                     ; i < n -                                     1                                     ; i++) {                       


           


                                                 // for left *                       


                                                 for                                     (j =                                     0                                     ; j < i +                                     2                                     ; j++)                       


                                                 System.out.print(                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (j =                                     0                                     ; j <                                     2                                     * (n -                                     1                                     - i) -                                     1                                     ; j++)                       


                                                 System.out.print(                                     " "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (j =                                     0                                     ; j < i +                                     2                                     ; j++)                       


                                                 System.out.print(                                     "*"                                     );                       


           


                                                 System.out.println();                       


                                                 }                       


           


                                                 System.out.println();                       


                                                 }                       


           


                                                 // Driver Code                       


                                                 public                                     static                                     void                                     main(String[] args)                       


                                                 {                       


           


                                                 // Define n                       


                                                 int                                     n =                                     3                                     ;                       


                                                 System.out.println(                                     "Inverse Diamond Pattern for n = "                                     + n);                       


                                                 printDiamond(n);                       


           


                                                 n =                                     7                                     ;                       


                                                 System.out.println(                                     "Inverse Diamond Pattern for n = "                                     + n);                       


                                                 printDiamond(n);                       


                                                 }                       


                         }                       












    






               






               










   Python3  












                        


        


                                                     


        


                          


        


                                                                                






















                         #Python3 program to print                       


                         # the inverse diamond shape                       


                                   


           


                         # Function to Print Inverse                       


                         # Diamond pattern                       


                         # with 2n-1 rows                       


                         def                                     printDiamond(n) :                       


                                                 print                                     ("")                       


                                                 j                                     =                                     0                       


                                   


                                                 # for top half                       


                                                 for                                     i                                     in                                     range                                     (                                     0                                     ,n):                       


                                   


                                                 # for left *                       


                                                 for                                     j                                     in                                     range                                     (i,n):                       


                                                 print                                     (                                     "*"                                     ,end                                     =                                     "")                       


                                   


                                                 # for middle " "                       


                                                 for                                     j                                     in                                     range                                     (                                     0                                     ,                                     2                                     *                                     i                                     +                                     1                                     ):                       


                                                 print                                     (                                     " "                                     ,end                                     =                                     "")                       


                                   


                                                 # for right *                       


                                                 for                                     j                                     in                                     range                                     (i,n):                       


                                                 print                                     (                                     "*"                                     ,end                                     =                                     "")                       


                                   


                                                 print                                     ("")                       


                                   


                                                 # for below half                       


                                                 for                                     i                                     in                                     range                                     (                                     0                                     ,n                                     -                                     1                                     ):                       


                                   


                                                 # for left *                       


                                                 for                                     j                                     in                                     range                                     (                                     0                                     , i                                     +                                     2                                     ):                       


                                                 print                                     (                                     "*"                                     ,end                                     =                                     "")                       


                                   


                                                 # for middle " "                       


                                                 for                                     j                                     in                                     range                                     (                                     0                                     ,                                     2                                     *                                     (n                                     -                                     1                                     -                                     i)                                     -                                     1                                     ):                       


                                                 print                                     (                                     " "                                     ,end                                     =                                     "")                       


                                   


                                                 # for right *                       


                                                 for                                     j                                     in                                     range                                     (                                     0                                     , i                                     +                                     2                                     ):                       


                                                 print                                     (                                     "*"                                     ,end                                     =                                     "")                       


                                   


                                                 print                                     ("")                       


                                   


                                                 print                                     ("")                       


                                   


                                   


                         # Driver Code                       


           


                         if                                     __name__                                     =                                     =                                     '__main__'                                     :                       


                                   


                         # Define n                       


                                                 n                                     =                                     3                       


                                                 print                                     (                                     "Inverse Diamond Pattern for n = "                                     ,n)                       


                                                 printDiamond(n)                       


                                   


                                                 n                                     =                                     7                       


                                                 print                                     (                                     "Inverse Diamond Pattern for n = "                                     ,n )                       


                                                 printDiamond(n)                       


           


                         # this code is contributed by Smitha Dinesh Semwal                       












    






               






               










   C#  












                        


        


                                                     


        


                          


        


                                                                                






















                         // C# Code to print                       


                         // the inverse diamond shape                       


                         using                                     System;                       


           


                         class                                     GFG                       


                         {                       


           


                         // Function to Print Inverse                       


                         // Diamond pattern with 2n-1 rows                       


                         static                                     void                                     printDiamond(                                     int                                     n)                       


                         {                       


                                                 Console.WriteLine();                       


           


                                                 int                                     i, j = 0;                       


           


                                                 // for top half                       


                                                 for                                     (i = 0; i < n; i++)                       


                                                 {                       


           


                                                 // for left *                       


                                                 for                                     (j = i; j < n; j++)                       


                                                 Console.Write(                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (j = 0; j < 2 * i + 1; j++)                       


                                                 Console.Write(                                     " "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (j = i; j < n; j++)                       


                                                 Console.Write(                                     "*"                                     );                       


           


                                                 Console.WriteLine();                       


                                                 }                       


           


                                                 // for below half                       


                                                 for                                     (i = 0; i < n - 1; i++)                       


                                                 {                       


           


                                                 // for left *                       


                                                 for                                     (j = 0; j < i + 2; j++)                       


                                                 Console.Write(                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (j = 0; j < 2 * (n - 1 - i) - 1; j++)                       


                                                 Console.Write(                                     " "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (j = 0; j < i + 2; j++)                       


                                                 Console.Write(                                     "*"                                     );                       


           


                                                 Console.WriteLine();                       


                                                 }                       


           


                                                 Console.WriteLine();                       


                         }                       


           


                         // Driver Code                       


                         public                                     static                                     void                                     Main()                       


                         {                       


           


                                                 // Define n                       


                                                 int                                     n = 3;                       


                                                 Console.WriteLine(                                     "Inverse Diamond "                                     +                       


                                                 "Pattern for n = "                                     + n);                       


                                                 printDiamond(n);                       


           


                                                 n = 7;                       


                                                 Console.WriteLine(                                     "Inverse Diamond "                                     +                       


                                                 "Pattern for n = "                                     + n);                       


                                                 printDiamond(n);                       


                         }                       


                         }                       


           


                         // This code is contributed                       


                         // by inder_verma.                       












    






               






               










   PHP  












                        


        


                                                     


        


                          


        


                                                                                






















                         <?php                       


                         // PHP Code to print                       


                         // the inverse diamond shape                       


           


                         // Function to Print Inverse                       


                         // Diamond pattern with 2n-1 rows                       


                         function                                     printDiamond(                                     $n                                     )                       


                         {                       


                                                 echo                                     ""                                     ;                       


           


                                                 $i                                     ;                                     $j                                     = 0;                       


           


                                                 // for top half                       


                                                 for                                     (                                     $i                                     = 0;                                     $i                                     <                                     $n                                     ;                                     $i                                     ++)                       


                                                 {                       


           


                                                 // for left *                       


                                                 for                                     (                                     $j                                     =                                     $i                                     ;                                     $j                                     <                                     $n                                     ;                                     $j                                     ++)                       


                                                 echo                                     (                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (                                     $j                                     = 0;                       


                                                 $j                                     < 2 *                                     $i                                     + 1;                                     $j                                     ++)                       


                                                 echo                                     (                                     " "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (                                     $j                                     =                                     $i                                     ;                                     $j                                     <                                     $n                                     ;                                     $j                                     ++)                       


                                                 echo                                     (                                     "*"                                     );                       


           


                                                 echo                                     (                                     ""                                     );                       


                                                 }                       


           


                                                 // for below half                       


                                                 for                                     (                                     $i                                     = 0;                                     $i                                     <                                     $n                                     - 1;                                     $i                                     ++)                       


                                                 {                       


           


                                                 // for left *                       


                                                 for                                     (                                     $j                                     = 0;                                     $j                                     <                                     $i                                     + 2;                                     $j                                     ++)                       


                                                 echo                                     (                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (                                     $j                                     = 0;                       


                                                 $j                                     < 2 * (                                     $n                                     - 1 -                                     $i                                     ) - 1;                                     $j                                     ++)                       


                                                 echo                                     (                                     " "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (                                     $j                                     = 0;                                     $j                                     <                                     $i                                     + 2;                                     $j                                     ++)                       


                                                 echo                                     (                                     "*"                                     );                       


           


                                                 echo                                     (                                     ""                                     );                       


                                                 }                       


           


                                                 echo                                     (                                     ""                                     );                       


                         }                       


           


                         // Driver Code                       


           


                         // Define n                       


                         $n                                     = 3;                       


                         echo                                     (                                     "Inverse Diamond Pattern for n = "                                     );                       


                         echo                                     (                                     $n                                     );                       


                         printDiamond(                                     $n                                     );                       


           


                         $n                                     = 7;                       


                         echo                                     (                                     "Inverse Diamond Pattern for n = "                                     );                       


                         echo                                     (                                     $n                                     );                       


                         printDiamond(                                     $n                                     );                       


           


                         // This code is contributed                       


                         // by inder_verma.                       


                         ?>                       












    






               






               










   Javascript  












                        


        


                                                     


        


                          


        


                                                                                






















                         <script>                       


           


                                                 // JavaScript Code to print                       


                                                 // the inverse diamond shape                       


           


                                                 // Function to Print Inverse Diamond pattern                       


                                                 // with 2n-1 rows                       


                                                 function                                     printDiamond(n) {                       


                                                 document.write(                                     "<br><br>"                                     );                       


           


                                                 var                                     i,                       


                                                 j = 0;                       


           


                                                 // for top half                       


                                                 for                                     (i = 0; i < n; i++) {                       


                                                 // for left *                       


                                                 for                                     (j = i; j < n; j++)                       


                                                 document.write(                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (j = 0; j < 2 * i + 1; j++)                       


                                                 document.write(                                     "  "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (j = i; j < n; j++)                       


                                                 document.write(                                     "*"                                     );                       


           


                                                 document.write(                                     "<br>"                                     );                       


                                                 }                       


           


                                                 // for below half                       


                                                 for                                     (i = 0; i < n - 1; i++) {                       


                                                 // for left *                       


                                                 for                                     (j = 0; j < i + 2; j++)                       


                                                 document.write(                                     "*"                                     );                       


           


                                                 // for middle " "                       


                                                 for                                     (j = 0; j < 2 * (n - 1 - i) - 1; j++)                       


                                                 document.write(                                     "  "                                     );                       


           


                                                 // for right *                       


                                                 for                                     (j = 0; j < i + 2; j++)                       


                                                 document.write(                                     "*"                                     );                       


           


                                                 document.write(                                     "<br>"                                     );                       


                                                 }                       


           


                                                 document.write(                                     "<br>"                                     );                       


                                                 }                       


           


                                                 // Driver Code                       


                                                 // Define n                       


                                                 var                                     n = 3;                       


                                                 document.write(                                     "Inverse Diamond Pattern for n = "                                     + n);                       


                                                 printDiamond(n);                       


           


                                                 n = 7;                       


                                                 document.write(                                     "Inverse Diamond Pattern for n = "                                     + n);                       


                                                 printDiamond(n);                       


                                   


                         </script>                       












    






               






               












     输出：    


Inverse Diamond Pattern for n = 3*** *****   ***     ***   ***** ***Inverse Diamond Pattern for n = 7******* *************   ***********     *********       *******         *****           ***             ***           *****         *******       *********     ***********   ************* *******




 


                    

        
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