Python程序,用于检查是否可以使用数组中的所有数字将一个数整除为3

给定一个整数数组,任务是找出是否有可能使用这些数字的所有数字构造一个整数,使其可以被3整除。如果可能,则打印“是”,如果不可能,则打印“否”。

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例如:

Input : arr[] = {40, 50, 90}
Output : Yes
We can construct a number which is
divisible by 3, for example 945000. 
So the answer is Yes. 

Input : arr[] = {1, 4}
Output : No
The only possible numbers are 14 and 41,
but both of them are not divisible by 3, 
so the answer is No.

# Python program to find if it is possible
# to make a number divisible by 3 using
# all digits of given array
def isPossibleToMakeDivisible(arr, n):
# Find remainder of sum when divided by 3
remainder = 0
for i in range ( 0 , n):
remainder = (remainder + arr[i]) % 3
# Return true if remainder is 0.
return (remainder = = 0 )
# main()
arr = [ 40 , 50 , 90 ];
n = 3
if (isPossibleToMakeDivisible(arr, n)):
print ( "Yes" )
else :
print ( "No" )
# Code Contributed by Mohit Gupta_OMG <(0_o)>


输出:

Yes

时间复杂度:O(n)

请参阅完整的文章 可以使用数组中的所有数字将一个数整除为3 更多细节!

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