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Submission #609687

# Submission time Handle Problem Language Result Execution time Memory
609687 2022-07-27T19:19:13 Z MasterTaster Sure Bet (CEOI17_sure) C++14
60 / 100
 99 ms 3448 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
#define double long double

using namespace std;

int n;
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 (i==n || bb<aa)
        {
            bb+=b[j++];
        }
        else if (j==n || aa<bb)
        {
            aa+=a[i++];
        }
        else if (aa==bb) { if (a[i]>=b[j]) aa+=a[i++]; else bb+=b[j++]; }

        aa--; bb--;
        ress=max(ress, min(aa, bb));
    }
    cout<<fixed<<setprecision(4)<<ress<<endl;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 1 ms 360 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 1 ms 360 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 82 ms 3348 KB Output is correct
18 Correct 89 ms 3444 KB Output is correct
19 Correct 99 ms 3404 KB Output is correct
20 Correct 82 ms 3336 KB Output is correct
21 Incorrect 97 ms 3448 KB Output isn't correct
22 Halted 0 ms 0 KB -