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C/C++ Program to check whether it is possible to make the divisible by 3 number using all digits in an array?
To check whether a number is divisible by 3, we add all the digits of the number and then calculate that the sum is divisible by 3 or not. In this problem, there is an array of integers arr[], and we have to check if a number formed with these number is divisible by 3. If the number formed is divisible then print ‘yes’ else print ‘no’
Input: arr[] = {45, 51, 90} Output: Yes
Explanation
construct a number which is divisible by 3, for example, 945510.
So the answer will be Yes Find the remainder of the sum when divided by 3 true if the remainder is 0.
Example
#include <stdio.h> int main() { int arr[] = { 45, 51, 90 }; int n =3; int rem = 0; for (int i = 0; i < n; i++) { rem = (rem + arr[i]) % 3; } if (rem==0) printf("Yes\n"); else printf("No\n"); return 0; }
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