昨天的帖子

#include<bits/stdc++.h>
#define ll long long
using namespace std;
bool flag[200010];
ll n, q;
ll ans, cc = 0;
char ch;
ll a, b, c, d, e;
int main() {
	scanf("%lld %lld", &n, &q);
	for(int i = 1; i <= n; i++) {
		scanf("%lldx%c%lld=%lld", &a, &ch, &b, &c);
		if(ch == '+'){
			ans = c - b;
		}
		else{
			ans = c + b;
		}
		flag[ans / a] = 1;
	}
	for(int i = 1; i <= q; i++) {
		scanf("%lld %lld", &d, &e);
		for(int j = d; j <= e; j++){
			if(flag[j]){
				cc++;
			}
		}
		printf("%lld\n", cc);
		cc = 0;
	}
	return 0;
}

拿这个代码试B9853，48pts，UKE，UKE啥意思呀？？！