Submission

Score: 20

User: samsenpisardmoo26

Problemset: I.Quick Math

Language: cpp

Time: 0.026 second

Submitted On: 2026-10-10 15:58:55

#include <bits/stdc++.h>
using namespace std;
int main()
{
    string a,b;
    cin >> a >> b;
    
    long long cnt = 0;
    
    for(int i=a.length()-1; i>=0; i--)
    {
        for(int j=b.length()-1; j>=0; j--)
        {
            int ans1 = (int) (a[i]-'0') * pow(10, a.length()-1-i);
            int ans2 = (int) (b[j]-'0') * pow(10, b.length()-1-j);
            cnt+= ans1*ans2;
        }
    }
    cout << cnt;
}