Submission

Score: 100

User: kakcode

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2025-11-12 21:04:07

/*
TASK: c1_bkk66_1
LANG: C++
AUTHOR: ICE
*/
#include <bits/stdc++.h>
using ll = long long;
#define forr(i, a, n) for (int i = a; i < n; i++)
const ll inf = 10e9;
#define int ll
using namespace std;
using pii = pair<int,int>;
signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int a,b,x;
    cin >> a >> b >> x;
    string s = to_string(a*b);
    if(x > s.length())cout << "_";
    else cout << s[x-1];
    return 0;
}