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Submission #609738

# Submission time Handle Problem Language Result Execution time Memory
609738 2022-07-27T20:10:14 Z MasterTaster Sure Bet (CEOI17_sure) C++14
100 / 100
 78 ms 3608 KB 
#include <bits/stdc++.h>

#define pb push_back
#define ll long long
#define pii pair<int, int>
#define xx first
#define yy second
#define MAXN 100010

using namespace std;

int n;
double eps=0.000001;
double ress=0, a[MAXN], b[MAXN];

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    cin>>n;
    for (int i=0; i<n; i++) cin>>a[i]>>b[i];

    sort(a, a+n, greater<double>());
    sort(b, b+n, greater<double>());

    double aa=0, bb=0;
    int i=0, j=0;
    while (i<n || j<n)
    {
        if ((bb+eps)<=aa)
        {
            if (j==n) break;
            bb+=b[j++];
        }
        else
        {
            if (i==n) break;
            aa+=a[i++];
        }
        ress=max(ress, min(aa-i-j, bb-i-j));
    }
    cout<<fixed<<showpoint<<setprecision(4)<<ress<<endl;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 240 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 240 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 240 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 65 ms 1868 KB Output is correct
18 Correct 66 ms 2024 KB Output is correct
19 Correct 67 ms 1872 KB Output is correct
20 Correct 77 ms 1848 KB Output is correct
21 Correct 71 ms 1872 KB Output is correct
22 Correct 65 ms 3116 KB Output is correct
23 Correct 78 ms 3204 KB Output is correct
24 Correct 67 ms 3204 KB Output is correct
25 Correct 67 ms 3236 KB Output is correct
26 Correct 74 ms 3608 KB Output is correct