Submission

Status:

PPPPPPPPPP

Score: 100

User: pxsit

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2024-11-15 23:02:02

#include <iostream>
#include <cmath>

using namespace std;
int main() {
    int a,b,c;
    long long int sum;
    cin >> a >> b >> c;
    sum = a*b;
    if(sum < pow(10,c-1)){
        cout << "_";
        return 0;
    }
    sum/= pow(10,floor(log10(sum) + 1) - c);
    cout << sum%10;
}