oj.uz

Submission #885802

# Submission time Handle Problem Language Result Execution time Memory
885802 2023-12-10T19:07:56 Z EJIC_B_KEDAX Let's Win the Election (JOI22_ho_t3) C++14
56 / 100
 2500 ms 994480 KB 
#ifdef LOCAL
    //#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
#include <random>

#ifndef LOCAL
    //#pragma GCC optimize("O3")
    //#pragma GCC optimize("Ofast")
    //#pragma GCC optimize("unroll-loops")
    #pragma GCC target("avx,avx2,bmi,bmi2,popcnt,lzcnt")
#endif
using namespace std;
using ll = long long;
using ld = long double;
#define x first
#define y second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()

mt19937_64 mt(418);

void solve();
void init();

int32_t main() {
#ifndef LOCAL
    cin.tie(nullptr)->sync_with_stdio(false);
#endif
    // srand(time(0));
    init();
    cout << fixed << setprecision(20);
    int t = 1;
    // cin >> t;
    while (t--) {
        solve();
    }
}

void init() {}

bool cmp(const pair<int, int>& a, const pair<int, int>& b) {
    if (a.y < b.y) {
        return true;
    }
    if (a.y > b.y) {
        return false;
    }
    return a.x < b.x;
}

void solve() {
    int n, k;
    cin >> n >> k;
    vector<pair<int, int>> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i].x >> a[i].y;
        if (a[i].y == -1) {
            a[i].y = INT32_MAX / 2;
        }
    }
    double ans = 2e18;
    vector<vector<vector<double>>> dp(n + 1, vector<vector<double>>(k + 1, vector<double>(n + 1, 2e18)));
    for (int ll = 0; ll <= n; ll++) {
        sort(all(a), cmp);
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <= k; j++) {
                if (i == j - 1) {
                    for (int l = 0; l <= n; l++) {
                        dp[i + 1][j][l] = 3e18;
                    }
                } else {
                    dp[i + 1][j][ll] = 3e18;
                }
            }
        }
        dp[0][0][0] = 0;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <= k; j++) {
                for (int l = 0; l <= n; l++) {
                    if (i == j - 1) {
                        dp[i + 1][j][l] = min(dp[i + 1][j][l], dp[i][j][l]);
                        if (j > 0) {
                            dp[i + 1][j][l] = min(dp[i + 1][j][l], dp[i][j - 1][l] + a[i].x / (double)(ll + 1));
                            if (l > 0) {
                                dp[i + 1][j][l] = min(dp[i + 1][j][l], dp[i][j - 1][l - 1] + a[i].y / (double)l);
                            }
                        }
                    } else {
                        dp[i + 1][j][ll] = min(dp[i + 1][j][ll], dp[i][j][ll]);
                        if (j > 0) {
                            dp[i + 1][j][ll] = min(dp[i + 1][j][ll], dp[i][j - 1][ll] + a[i].x / (double)(ll + 1));
                        }
                    }
                }
            }
        }
        for (int i = ll; i <= n; i++) {
            ans = min(ans, dp[n][k][i]);
        }
    }
    cout << ans << '\n';
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 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 Execution timed out 2539 ms 101456 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 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 Execution timed out 2539 ms 101456 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

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

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 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 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 600 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 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 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 600 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 50 ms 1880 KB Output is correct
42 Correct 49 ms 1780 KB Output is correct
43 Correct 99 ms 2908 KB Output is correct
44 Correct 93 ms 2904 KB Output is correct
45 Correct 159 ms 4712 KB Output is correct
46 Correct 158 ms 4712 KB Output is correct
47 Correct 205 ms 5980 KB Output is correct
48 Correct 204 ms 5980 KB Output is correct
49 Correct 251 ms 7228 KB Output is correct
50 Correct 251 ms 7096 KB Output is correct
51 Correct 312 ms 8904 KB Output is correct
52 Correct 310 ms 8904 KB Output is correct
53 Correct 201 ms 5980 KB Output is correct
54 Correct 205 ms 5980 KB Output is correct
55 Correct 207 ms 5980 KB Output is correct
56 Correct 200 ms 5980 KB Output is correct
57 Correct 207 ms 5980 KB Output is correct
58 Correct 212 ms 5976 KB Output is correct
59 Correct 208 ms 5976 KB Output is correct
60 Correct 202 ms 5980 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2607 ms 994480 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 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 Execution timed out 2539 ms 101456 KB Time limit exceeded
6 Halted 0 ms 0 KB -