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Submission #52647

# Submission time Handle Problem Language Result Execution time Memory
52647 2018-06-26T10:34:50 Z snat123 Sure Bet (CEOI17_sure) C++14
20 / 100
 4 ms 740 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    double a[n], b[n];
    for(int i=0; i<n; i++) cin >> a[i] >> b[i];
    sort(a, a+n);
	sort(b, b+n);
	int i=n-1, j=n-1;
	double x=0, y=0, res=0.0;
	while(i>=0 || j>=0){
		if(x>=y || i<0){
			y+=b[j--];
			x-=1;
			y-=1;
			res=max(res, min(x, y));
			
		}
		else{
			x+=a[i--];
			y-=1;
			x-=1;
			res=max(res, min(x, y));
		}
	}
	cout << fixed << setprecision(4) << res;
    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 3 ms 488 KB Output is correct
4 Correct 3 ms 492 KB Output is correct
5 Correct 2 ms 524 KB Output is correct
6 Correct 3 ms 572 KB Output is correct

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 3 ms 488 KB Output is correct
4 Correct 3 ms 492 KB Output is correct
5 Correct 2 ms 524 KB Output is correct
6 Correct 3 ms 572 KB Output is correct
7 Correct 3 ms 692 KB Output is correct
8 Correct 3 ms 740 KB Output is correct
9 Correct 3 ms 740 KB Output is correct
10 Correct 3 ms 740 KB Output is correct
11 Incorrect 4 ms 740 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 3 ms 488 KB Output is correct
4 Correct 3 ms 492 KB Output is correct
5 Correct 2 ms 524 KB Output is correct
6 Correct 3 ms 572 KB Output is correct
7 Correct 3 ms 692 KB Output is correct
8 Correct 3 ms 740 KB Output is correct
9 Correct 3 ms 740 KB Output is correct
10 Correct 3 ms 740 KB Output is correct
11 Incorrect 4 ms 740 KB Output isn't correct
12 Halted 0 ms 0 KB -