백준 25304번 - C

#include <stdio.h>

int main(void) {
    int total, count;
    int sum = 0;
    
    scanf("%d", &total);
    scanf("%d", &count);
    
    int i;
    for (i = 0; i < count; i++) {
        int a, b;
        scanf("%d %d", &a, &b);
        sum += a * b;
    }
    
    if (total == sum) printf("Yes");
    else printf("No");

    return 0;
}