Submission

Score: 100

User: SXLENG.S

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-25 18:47:21

#include<iostream>

int main()
{
	int A = 0;
	int B = 0;
	int x = 0;
	int m = 0;
	int m1 = 0;
	int r = 0;
	int len = 0;
	std::cin>>A>>B>>x;
	m += A*B;
	m1 = m;
	
	while(m>0){
		m /= 10;
		len += 1;
	}
	
	if (x > len) {
        std::cout << "_";
        return 0;
	}
	
	for(int i=0;i<len-x+1;i=i+1){
		r = m1%10;
		m1 = m1/10;
	}
	
	std::cout<<r<<"\n";
	
	return 0;
}