Submission #511154

Source Code Expand

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main(){
	long long ans;
	int N;
	long long T;
	cin>>N>>T;
	long long *AB = new long long[N];
	long long a, b, tmpa, tmpb;
	a=0;b=0;
	for(int i=0; i<N; i++){
		cin>>tmpa>>tmpb;
		AB[i]=tmpb-tmpa;
		a+=tmpa;
		b+=tmpb;
	}
	if(b>T){
		cout<<-1<<endl;	
	}
	else{
		sort(AB, AB+N);
		long long tmp=0;
		ans=0;
		for(int j=0;j<N;j++){
			if(a>T){
				tmp=AB[j];
				a+=tmp;
				ans=j+1;
			}
			else{
				ans=j;
				break;
			}
		}
		cout<<ans<<endl;
	}
	
}

Submission Info

Submission Time
Task C - 8月31日
User nipo
Language C++ (GCC 4.9.2)
Score 100
Code Size 574 Byte
Status AC
Exec Time 123 ms
Memory 1576 KiB

Judge Result

Set Name Sample Dataset1 Dataset2
Score / Max Score 0 / 0 30 / 30 70 / 70
Status
AC × 5
AC × 15
AC × 36
Set Name Test Cases
Sample sample-01.txt, sample-02.txt, sample-03.txt, sample-04.txt, sample-05.txt
Dataset1 sample-01, sample-02, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt
Dataset2 sample-01.txt, sample-02.txt, sample-03.txt, sample-04.txt, sample-05.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt, 02-14.txt, 02-15.txt, 02-16.txt
Case Name Status Exec Time Memory
01-01.txt AC 30 ms 796 KiB
01-02.txt AC 27 ms 916 KiB
01-03.txt AC 26 ms 800 KiB
01-04.txt AC 26 ms 924 KiB
01-05.txt AC 31 ms 804 KiB
01-06.txt AC 113 ms 1496 KiB
01-07.txt AC 111 ms 1444 KiB
01-08.txt AC 96 ms 1444 KiB
01-09.txt AC 37 ms 792 KiB
01-10.txt AC 55 ms 1040 KiB
01-11.txt AC 110 ms 1564 KiB
01-12.txt AC 110 ms 1572 KiB
01-13.txt AC 108 ms 1576 KiB
01-14.txt AC 88 ms 1576 KiB
01-15.txt AC 111 ms 1564 KiB
02-01.txt AC 27 ms 796 KiB
02-02.txt AC 26 ms 804 KiB
02-03.txt AC 25 ms 920 KiB
02-04.txt AC 27 ms 760 KiB
02-05.txt AC 35 ms 932 KiB
02-06.txt AC 122 ms 1576 KiB
02-07.txt AC 121 ms 1560 KiB
02-08.txt AC 123 ms 1572 KiB
02-09.txt AC 114 ms 1452 KiB
02-10.txt AC 119 ms 1556 KiB
02-11.txt AC 40 ms 808 KiB
02-12.txt AC 123 ms 1564 KiB
02-13.txt AC 112 ms 1560 KiB
02-14.txt AC 123 ms 1572 KiB
02-15.txt AC 115 ms 1564 KiB
02-16.txt AC 115 ms 1556 KiB
sample-01.txt AC 26 ms 916 KiB
sample-02.txt AC 30 ms 924 KiB
sample-03.txt AC 26 ms 796 KiB
sample-04.txt AC 26 ms 812 KiB
sample-05.txt AC 26 ms 804 KiB