Submission

Score: 90

User: ultraman9845

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-13 17:59:47

#include<iostream>
#include<string>

typedef long long ll;
using namespace std;

int main()
{
	int a,b;
	ll prod;
	string s;
	int x;
	cin >> a >> b;
	prod = a*b;
	s = to_string(prod) ;
	int l;
	l = s.length() ;
	cin >> x ;
	if(x >= l)
	{
		cout << '_' ;
	}
	else
	{
		cout << s[x-1] ;	
	}
		
}