Submission

Score: 100

User: boygunner

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-06 22:19:04

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,x;
	string result;
	cin>>a>>b>>x;
	a=a*b;
	do{
		result=result+(char)('0'+a%10);
		a=a/10;
	}while(a);
	reverse(result.begin(),result.end());
	if(x>result.length()) cout<<'_';
	else cout<<result[x-1];
}