oj.uz

Submission #855997

# Submission time Handle Problem Language Result Execution time Memory
855997 2023-10-02T13:55:33 Z Cyanmond Sure Bet (CEOI17_sure) C++17
100 / 100
 30 ms 2020 KB 
#include <bits/stdc++.h>

using namespace std;

#define rep(i, l, r) for (int i = (l); i < (r); ++i)
#define per(i, l, r) for (int i = (r - 1); i >= l; --i)
#define ALL(x) (x).begin(), (x).end()

using i64 = long long;

i64 parse() {
    i64 ret = 0;
    string s;
    cin >> s;
    if (find(ALL(s), '.') == s.end()) s.push_back('.');
    while (s.end() - find(ALL(s), '.') <= 6) s += '0';
    for (const auto e : s) {
        if (std::isdigit(e)) {
            ret = 10 * ret + (e - '0');
        } else {
            continue;
        }
    }
    return ret;
}

void out(i64 v) {
    i64 x = v % 100;
    v /= 100;
    if (x >= 50) ++v;
    
    cout << v / 10000 << '.';
    i64 m = v % 10000;
    string s = to_string(m);
    while (s.size() < 4) s = '0' + s;
    cout << s;
    cout << endl;
}

void main_2() {
    int N;
    cin >> N;
    vector<double> A(N), B(N);
    rep(i, 0, N) cin >> A[i] >> B[i];
    sort(ALL(A), greater());
    sort(ALL(B), greater());

    long double sumA = 0, sumB = 0;
    int i = 0, j = 0;
    long double ans = 0;
    while (i < N or j < N) {
        if (sumA < sumB) {
            if (i == N) break;
            sumA += A[i];
            ++i;
        } else {
            if (j == N) break;
            sumB += B[j];
            ++j;
        }
        ans = max(ans, min(sumA, sumB) - (long double)(i + j));
    }
    cout << fixed << setprecision(4) << ans << endl;
}

void main_() {
    int N;
    cin >> N;
    vector<i64> A(N), B(N);
    rep(i, 0, N) {
        A[i] = parse();
        B[i] = parse();
    }
    sort(ALL(A), greater());
    sort(ALL(B), greater());

    i64 sumA = 0, sumB = 0;
    int i = 0, j = 0;
    i64 ans = 0;
    while (i < N or j < N) {
        if (sumA < sumB) {
            if (i == N) break;
            sumA += A[i];
            ++i;
        } else {
            if (j == N) break;
            sumB += B[j];
            ++j;
        }
        ans = max(ans, min(sumA, sumB) - (i + j) * 1000000ll);
    }
    out(ans);
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    main_();
}

Subtask #1
20.0 / 20.0

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

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 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 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 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 1 ms 512 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 472 KB Output is correct
16 Correct 1 ms 348 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 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 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 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 1 ms 512 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 472 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 27 ms 1884 KB Output is correct
18 Correct 27 ms 2012 KB Output is correct
19 Correct 27 ms 1884 KB Output is correct
20 Correct 26 ms 1884 KB Output is correct
21 Correct 28 ms 1880 KB Output is correct
22 Correct 27 ms 2020 KB Output is correct
23 Correct 26 ms 1884 KB Output is correct
24 Correct 27 ms 1884 KB Output is correct
25 Correct 29 ms 2012 KB Output is correct
26 Correct 30 ms 1884 KB Output is correct