Submission

Score: 100

User: him

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-18 08:34:36

#include <bits/stdc++.h>
using namespace std;
int arr[1009];
int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	vector<int> v;
	int a,b,c;cin>>a>>b>>c;
	int d=a*b;
	int r;
	while(d>0){
		r=d%10;
		v.push_back(r);
		d=d/10;
	}
	reverse(v.begin(),v.end());
	if(c<=v.size()) cout<<(v[c-1]);
	else cout<<"_";
	return 0;
}