给定一个数字x和两个数字d1和d2，用x中的d2替换d1。 例如：
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Input : x = 645, d1 = 6, d2 = 5Output : 545We replace digit 6 with 5 in number 645.Input : x = 746, d1 = 7, d2 = 8Output : 846
我们遍历x的所有数字。对于每个数字，我们检查它是否为d1，我们相应地更新结果。
C++
// CPP program to replace a digit with other // in a given number. #include <bits/stdc++.h> using namespace std; int replaceDigit( int x, int d1, int d2) { int result = 0, multiply = 1; while (x / 10 > 0) { // Take remainder of number starting from // the unit place digit int remainder = x % 10; // check whether it is equal to the digit // to be replaced.if yes then replace if (remainder == d1) result = result + d2 * multiply; else // else remain as such result = result + remainder * multiply; // Update and move forward from unit place // to hundred place and so on. multiply *= 10; x = x / 10; // update the value } // check whether it is equal to the digit // to be replaced.if yes then replace if (x == d1) result = result + d2 * multiply; else // else remain as such result = result + x * multiply; return result; } // Driver code int main() { int x = 645, d1 = 6, d2 = 5; cout << replaceDigit(x, d1, d2) << endl; return 0; } |
JAVA
// Java program to replace a digit // with other in a given number. class GFG { static int replaceDigit( int x, int d1, int d2) { int result = 0 , multiply = 1 ; while (x / 10 > 0 ) { // Take remainder of number // starting from the unit // place digit int remainder = x % 10 ; // check whether it is equal // to the digit to be replaced. // if yes then replace if (remainder == d1) result = result + d2 * multiply; else // else remain as such result = result + remainder * multiply; // Update and move forward // from unit place to // hundred place and so on. multiply *= 10 ; x = x / 10 ; // update the value } // check whether it is equal to the digit // to be replaced.if yes then replace if (x == d1) result = result + d2 * multiply; else // else remain as such result = result + x * multiply; return result; } // Driver code public static void main(String[] args) { int x = 645 , d1 = 6 , d2 = 5 ; System.out.println(replaceDigit(x, d1, d2)); } } // This Code is Contributed by mits |
Python3
# Python3 program to replace # a digit with other # in a given number. def replaceDigit(x, d1, d2): result = 0 multiply = 1 while (x / / 10 > 0 ): # Take remainder of number # starting from the unit # place digit remainder = x % 10 # check whether it is # equal to the digit # to be replaced.if yes # then replace if (remainder = = d1): result = (result + d2 * multiply) else : # else remain as such result = (result + remainder * multiply) # Update and move forward # from unit place to hundred # place and so on. multiply * = 10 x = int (x / 10 ) # update the value # check whether it is equal to the digit # to be replaced.if yes then replace if (x = = d1): result = result + d2 * multiply else : # else remain as such result = result + x * multiply return result # Driver code x = 645 d1 = 6 d2 = 5 print (replaceDigit(x, d1, d2)) # This Code is contributed # by mits |
C#
// C# program to replace a digit // with other in a given number using System; class GFG { static int replaceDigit( int x, int d1, int d2) { int result = 0, multiply = 1; while (x / 10 > 0) { // Take remainder of number // starting from the unit // place digit int remainder = x % 10; // check whether it is equal // to the digit to be replaced. // if yes then replace if (remainder == d1) result = result + d2 * multiply; else // else remain as such result = result + remainder * multiply; // Update and move forward // from unit place to // hundred place and so on. multiply *= 10; x = x / 10; // update the value } // check whether it is equal to the digit // to be replaced.if yes then replace if (x == d1) result = result + d2 * multiply; else // else remain as such result = result + x * multiply; return result; } // Driver code public static void Main() { int x = 645, d1 = 6, d2 = 5; Console.WriteLine(replaceDigit(x, d1, d2)); } } // This Code is contributed // by inder_verma |
PHP
<?php // PHP program to replace // a digit with other // in a given number. function replaceDigit( $x , $d1 , $d2 ) { $result = 0; $multiply = 1; while ( $x / 10 > 0) { // Take remainder of number // starting from the unit // place digit $remainder = $x % 10; // check whether it is // equal to the digit // to be replaced.if yes // then replace if ( $remainder == $d1 ) $result = $result + $d2 * $multiply ; else // else remain as such $result = $result + $remainder * $multiply ; // Update and move forward // from unit place to hundred // place and so on. $multiply *= 10; $x = $x / 10; // update the value } // check whether it is equal to the digit // to be replaced.if yes then replace if ( $x == $d1 ) $result = $result + $d2 * $multiply ; else // else remain as such $result = $result + $x * $multiply ; return $result ; } // Driver code $x = 645; $d1 = 6; $d2 = 5; echo replaceDigit( $x , $d1 , $d2 ); // This Code is contributed // by inder_verma ?> |
Javascript
<script> // Javascript program to replace a digit // with other in a given number function replaceDigit(x, d1, d2) { let result = 0, multiply = 1; while (parseInt(x / 10, 10) > 0) { // Take remainder of number // starting from the unit // place digit let remainder = x % 10; // check whether it is equal // to the digit to be replaced. // if yes then replace if (remainder == d1) result = result + d2 * multiply; else // else remain as such result = result + remainder * multiply; // Update and move forward // from unit place to // hundred place and so on. multiply *= 10; x = parseInt(x / 10, 10); // update the value } // check whether it is equal to the digit // to be replaced.if yes then replace if (x == d1) result = result + d2 * multiply; else // else remain as such result = result + x * multiply; return result; } let x = 645, d1 = 6, d2 = 5; document.write(replaceDigit(x, d1, d2)); // This code is contributed by rameshtravel07. </script> |
输出：
545
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