Submission

Score: 100

User: Kidmaiok

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-10 20:44:58

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define space << ' '
#define nl << endl

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    long long a,b,x;
    cin >> a >> b >> x;
    long long t = a*b;
    string y = to_string(t);
    if(x > y.size()){
        cout << "_";
        return 0;
    }
    cout << y[x-1];
}