Submission

Score: 90

User: punzacp555

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.004 second

Submitted On: 2026-09-25 13:22:54

#include <bits/stdc++.h>
using namespace std;
#define ll long long

int main() {
    cin.tie(0)->sync_with_stdio(0);
    ll a, b, x;
    cin >> a >> b >> x;


    string num = to_string(a * b); 

    cout << (x < num.size() ? num[x-1] : '_');   

    return 0;
}