Question

How to count the total number from int array that divide by N in C++

Answer 1

#include <iostream>

using namespace std;

bool is_divide_by(int n , int d) {
    if (n % d == 0)
        return true;
    return false;
}

int main() {
    int arr[10] = {4, 45, 76, 12, 63, 98, 83273, 62, 23, 100};
    int count = 0, n = 3;
    
    for (int i = 0; i < sizeof(arr)/sizeof(int); i++) {
        if (is_divide_by(arr[i], 3)) {
            cout << arr[i] << endl;
            count++;
        }
    }
    
    cout << "total = " << count;
}



/*
run:

45
12
63
total = 3

*/

 

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