Submission #155567

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
155567	2019-09-29T06:47:00 Z	tevdore	Sure Bet (CEOI17_sure)	C++14	20 / 100	9 ms	504 KB

sure

#include<bits/stdc++.h>
using namespace std;
int n,i,k1,k2;
double q1,q2,ans,answer;
double a[1000001],b[1000001];
int main(){
	cin>>n;
	for(i=1;i<=n;i++){
		cin>>a[i]>>b[i];
	}
	sort(a+1,a+n+1);
	sort(b+1,b+n+1);
	k1=n;
	k2=n;
	while(true){
		ans=min(q1,q2);
		answer=max(ans,answer);
		if(q1 < answer && q2 < answer)break;
		if(q1 >= q2){
		   q2+=b[k2]-1;
		   k2--;
		   q1-=1;
		   continue;
		}
		else{
			q1+=a[k1]-1;
			k1--;
			q2-=1;
		}
	}
	printf("%.4lf",(double)answer);
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	248 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	3 ms	376 KB	Output is correct
6	Correct	2 ms	252 KB	Output is correct

Subtask #2

0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	248 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	3 ms	376 KB	Output is correct
6	Correct	2 ms	252 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	8 ms	376 KB	Output is correct
9	Correct	2 ms	296 KB	Output is correct
10	Correct	3 ms	380 KB	Output is correct
11	Runtime error	9 ms	504 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
12	Halted	0 ms	0 KB	-

Subtask #3

0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	248 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	3 ms	376 KB	Output is correct
6	Correct	2 ms	252 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	8 ms	376 KB	Output is correct
9	Correct	2 ms	296 KB	Output is correct
10	Correct	3 ms	380 KB	Output is correct
11	Runtime error	9 ms	504 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
12	Halted	0 ms	0 KB	-