[백준] 2588번 : 곱셈 - C++

https://www.acmicpc.net/problem/2588

#include <iostream>

using namespace std;

int main() {
    int n,m;
    cin >> n >> m;
    
    int num=m%10;
    int a=num*n;
    m/=10;
        
    num=m%10;
    int b=num*n;
    m/=10;
        
    num=m%10;
    int c=num*n;
        
    int sum=(a+b*10+c*100);
    cout << a << "\n";
    cout << b << "\n";
    cout << c << "\n";
    cout << sum << "\n";
}