Submission

Status:

PPPPPPP-PP

Subtask/Task Score:

90/100

Score: 90

User: Quinruj

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-05 20:44:21

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

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

    ll a,b,x;cin>>a>>b>>x;
    string s = to_string(a*b);
    if (x >= s.size() || x < 1) cout << '_';
    else cout << s[x-1];
}