Submission

Score: 100

User: I_am_me

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-23 20:27:31

#include<iostream> 
#include<string>
using namespace std;
int main() {
	int a, b, x;
	cin >> a;
	cin >> b;
	cin >> x;
	int c = a * b;
	string y = to_string(c);
	int l = 0;
	while (c>=1) {
		c = (c - c % 10) / 10;
		l++;
	}
	if (x <= l) {
		cout << y[x - 1];
	}
	else if (x > l) {
		cout << "_";
	}
}