Submission

Score: 100

User: grassjelly474a

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-13 10:08:15

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
constexpr char sp = ' ';
constexpr char nl = '\n';

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int a, b, x;
    cin >> a >> b >> x;

    string r = to_string(a * b);
    if (x > r.size())
        cout << "_";
    else
        cout << r[x - 1];
}