Submission

Score: 30

User: korn234

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.006 second

Submitted On: 2026-10-12 22:19:36

#include <iostream>
#include <cmath>
using namespace std;
using ll = long long;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int a, b, x;
    cin>>a>>b>>x;
    int mul=a*b;
    string num=to_string(mul);
    x--;
    if(num[x]-'0'>'0'&&num[x]-'0'<'9'){
        cout<<num[x]-'0';
    }
    else {
        cout<<"_";
    }
}