[백준] 25304 - 영수증

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`

#include <iostream>
#define _CRT_SECURE_NO_WARNINGS
using namespace std;

int main() {
	int money;
	int c;
	cin >> money;
	cin >> c;
	
	while (c>0)
	{
		int cm, n;
		cin >> cm >> n;
		money -= cm * n;
		c--;
	}
	if (money == 0)
		cout << "Yes";
	else
		cout << "No";
	
}