Submission

Score: 100

User: sulinx

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-30 21:04:47

#include <bits/stdc++.h>
using namespace std;

int main(){
    int A,B,x,count = 0;
    cin >> A >> B >> x;
    A = A * B;
    B = A;
    while(true){
        if(A!=0){
            A = A/10;
            count++;
        }else{
            break;
        }
    }
    if(x>count){
        cout << '_';
        return 0;
    }
    for(int i = 0;i<count-x;i++){
        B = B/10;
    }
    B = B%10;
    cout << B;
}