Submission

Score: 100

User: Yowaine

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2026-06-07 20:59:11

/*
TASK: c1_bkk66_1
LANG: C++
AUTHOR: Yowaine
*/
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define all(x) x.begin() , x.end()
#define newline cout << "\n"

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    cout.tie(0);
    int a , b , x;
    cin >> a >> b >> x;
    string s = to_string(a * b);
    if (s.size() >= x)cout << s[x - 1] << "\n";
    else cout << "_\n";
    return 0;
}