0分求助！

#include<bits/stdc++.h>
using namespace std;
int n,prices=0;
struct transfer{
	bool sb;
	int price;
	int time;
	int ticket;
}data[10010];
int back(int a){
	for(int i=1;i<=a;i++)
		if(data[i].price>=data[a].price&&data[a].time<=45+data[i].time&&data[i].ticket==1)
				data[i].ticket=0;
				return 1;
			return 0;
}
int main(){
cin>>n;
for(int i=1;i<=n;i++){
	cin>>data[i].sb>>data[i].price>>data[i].time;
	if(data[i].sb==0){
		data[i].ticket=1;
		prices=prices+data[i].price;
	}
	else if(data[i].sb==1){
		if(back(i)==0)
		prices=prices+data[i].price;
		else prices+=0;
	}
}
cout<<prices;
return 0;
}