Submission

Score: 100

User: ztmy_

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-13 20:21:15

#include <iostream>
using namespace std;

int main(){
    int a, b, x;
    cin >> a;
    cin >> b;
    cin >> x;
    int sum = a*b;
    int dig = 0;
    int tempsum = sum;
    while (tempsum > 0){
        tempsum /= 10;
        dig++;
    }
    for (int i = dig; i > x; i--){
        sum /= 10;
    }
    if (x > dig) cout << "_";
    else cout << sum%10;
}