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Submission #860932

# Submission time Handle Problem Language Result Execution time Memory
860932 2023-10-14T19:25:37 Z GordonRemzi007 Sure Bet (CEOI17_sure) C++17
100 / 100
 115 ms 3896 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>

using namespace std;

bool srt(double a, double b) {
    return a > b;
}

int main() {
    int n, f = 0, s = 0;
    double fsum = 0, ssum = 0, res = 0;
    cin >> n;
    vector<double> a(n), b(n);
    for(int i = 0; i < n; i++) cin >> a[i] >> b[i];
    sort(a.begin(), a.end(), srt);
    sort(b.begin(), b.end(), srt);
    //Sa <= Sb
    while(f < n && s < n) {
        while(fsum <= ssum && f < n) {
            fsum+=a[f];
            f++;
            if(fsum <= ssum) {
                res = max(res, fsum-f-s);
            }
        }
        while(fsum > ssum && s < n) {
            ssum+=b[s];
            s++;
        }
        if(fsum <= ssum) res = max(res, fsum-f-s);
    }
    //Sb <= Sa
    f = 0, s = 0, fsum = 0, ssum = 0;
    while(f < n && s < n) {
        while(ssum <= fsum && s < n) {
            ssum+=b[s];
            s++;
            if(ssum <= fsum) res = max(res, ssum-f-s);
        }
        while(ssum > fsum && f < n) {
            fsum+=a[f];
            f++;
        }
        if(ssum <= fsum) res = max(res, ssum-f-s);
    }
    cout << fixed << setprecision(4) << res << "\n";
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 98 ms 3156 KB Output is correct
18 Correct 103 ms 3260 KB Output is correct
19 Correct 99 ms 3144 KB Output is correct
20 Correct 104 ms 3152 KB Output is correct
21 Correct 113 ms 3732 KB Output is correct
22 Correct 105 ms 3156 KB Output is correct
23 Correct 114 ms 3272 KB Output is correct
24 Correct 101 ms 3408 KB Output is correct
25 Correct 99 ms 3252 KB Output is correct
26 Correct 115 ms 3896 KB Output is correct