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Submission #373096

# Submission time Handle Problem Language Result Execution time Memory
373096 2021-03-03T10:09:21 Z mariowong Sure Bet (CEOI17_sure) C++14
100 / 100
 121 ms 5356 KB 
#include <bits/stdc++.h>
using namespace std;

int n,pt1,pt2;
long double sum1,sum2,a[100005],b[100005],ans; 
int main(){
	ios::sync_with_stdio(false);
	cin >> n;
	for (int i=1;i<=n;i++){
		cin >> a[i] >> b[i];
	}
	sort(a+1,a+1+n); sort(b+1,b+1+n);
	reverse(a+1,a+1+n); reverse(b+1,b+1+n);
	while (pt1 < n || pt2 < n){
		if (pt2 == n || (pt1 < n && sum1 < sum2)){
			pt1++;
			sum1+=a[pt1];
		}
		else
		{
			pt2++;
			sum2+=b[pt2];
		}

		ans=max(ans,min(sum1,sum2)-pt1-pt2);
	}
	cout << fixed << setprecision(4) << ans << "\n";
	return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 2 ms 364 KB Output is correct
13 Correct 2 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 364 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 2 ms 364 KB Output is correct
13 Correct 2 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 364 KB Output is correct
17 Correct 103 ms 4844 KB Output is correct
18 Correct 107 ms 4972 KB Output is correct
19 Correct 112 ms 4844 KB Output is correct
20 Correct 104 ms 4864 KB Output is correct
21 Correct 121 ms 5356 KB Output is correct
22 Correct 107 ms 4940 KB Output is correct
23 Correct 106 ms 4844 KB Output is correct
24 Correct 103 ms 4844 KB Output is correct
25 Correct 105 ms 4844 KB Output is correct
26 Correct 111 ms 5356 KB Output is correct