oj.uz

Submission #1085016

# Submission time Handle Problem Language Result Execution time Memory
1085016 2024-09-07T10:05:49 Z GasmaskChan Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 148 ms 2552 KB 
#include <bits/stdc++.h>

using namespace std;
#define int long long

const int MAX = 5e2 + 5;

void minimize(double &a, const double &b) {
    a = min(a, b);
}

int sum[MAX][MAX];
double f[2][MAX];
pair<int, int> state[MAX];
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    // freopen("test.inp", "r", stdin); freopen("test.out", "w", stdout);
    int n, k;
    cin >> n >> k;
    int g = 0;
    for (int i = 1; i <= n; i++) {
        cin >> state[i].first >> state[i].second;
        if (state[i].second == -1) state[i].second = 1e9;
        else ++g;
    }

    sort(state + 1, state + n + 1, [](const pair<int, int> &a, const pair<int, int> &b) -> bool {
        if (a.second != b.second) return a.second < b.second;
        return a.first < b.first;
    });

    memset(sum, 0x3f, sizeof sum);

    for (int i = 1; i <= n; i++) {
        sum[i][0] = 0;
        for (int j = i; j <= n; j++) {
            for (int z = k; z > 0; z--) {
                sum[i][z] = min(sum[i][z], sum[i][z - 1] + state[j].first);
            }
        }
    }

    sum[n + 1][0] = 0;

    double ans = sum[1][k];

    g = min(g, k);
    for (int c = 0; c <= g; c++) {
        for (int i = 0; i < 2; i++) {
            for (int j = 0; j <= k; j++) {
                f[i & 1][j] = 1e9;
            }
        }

        f[0][0] = 0.0;
        for (int i = 1; i <= k; i++) {
            for (int j = 0; j <= i; j++) {
                f[i & 1][j] = f[(i - 1) & 1][j] + 1.0 * state[i].first / (c + 1);
                if (j) minimize(f[i & 1][j], f[(i - 1) & 1][j - 1] + 1.0 * state[i].second / j);
                if (j == c) {
                    minimize(ans, f[i & 1][j] + 1.0 * sum[i + 1][k - i] / (c + 1));
                }
            }
        }
    }

    cout << fixed << ans;
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Correct 12 ms 2464 KB Output is correct
7 Correct 24 ms 2396 KB Output is correct
8 Correct 34 ms 2392 KB Output is correct
9 Correct 44 ms 2396 KB Output is correct
10 Correct 38 ms 2392 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Correct 12 ms 2464 KB Output is correct
7 Correct 24 ms 2396 KB Output is correct
8 Correct 34 ms 2392 KB Output is correct
9 Correct 44 ms 2396 KB Output is correct
10 Correct 38 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 17 ms 2396 KB Output is correct
13 Correct 18 ms 2392 KB Output is correct
14 Correct 16 ms 2476 KB Output is correct
15 Correct 65 ms 2444 KB Output is correct
16 Correct 58 ms 2396 KB Output is correct
17 Correct 40 ms 2396 KB Output is correct
18 Correct 146 ms 2392 KB Output is correct
19 Correct 101 ms 2396 KB Output is correct
20 Correct 63 ms 2396 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 2 ms 2396 KB Output is correct
36 Correct 1 ms 2348 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 2 ms 2552 KB Output is correct
39 Correct 1 ms 2392 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 2 ms 2396 KB Output is correct
36 Correct 1 ms 2348 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 2 ms 2552 KB Output is correct
39 Correct 1 ms 2392 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 2 ms 2392 KB Output is correct
49 Correct 2 ms 2264 KB Output is correct
50 Correct 2 ms 2396 KB Output is correct
51 Correct 2 ms 2396 KB Output is correct
52 Correct 2 ms 2396 KB Output is correct
53 Correct 2 ms 2396 KB Output is correct
54 Correct 2 ms 2392 KB Output is correct
55 Correct 2 ms 2396 KB Output is correct
56 Correct 2 ms 2396 KB Output is correct
57 Correct 3 ms 2396 KB Output is correct
58 Correct 2 ms 2396 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 2 ms 2396 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 2396 KB Output is correct
2 Correct 148 ms 2448 KB Output is correct
3 Correct 137 ms 2440 KB Output is correct
4 Correct 137 ms 2396 KB Output is correct
5 Correct 138 ms 2392 KB Output is correct
6 Correct 138 ms 2396 KB Output is correct
7 Correct 137 ms 2392 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 6 ms 2396 KB Output is correct
6 Correct 12 ms 2464 KB Output is correct
7 Correct 24 ms 2396 KB Output is correct
8 Correct 34 ms 2392 KB Output is correct
9 Correct 44 ms 2396 KB Output is correct
10 Correct 38 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 17 ms 2396 KB Output is correct
13 Correct 18 ms 2392 KB Output is correct
14 Correct 16 ms 2476 KB Output is correct
15 Correct 65 ms 2444 KB Output is correct
16 Correct 58 ms 2396 KB Output is correct
17 Correct 40 ms 2396 KB Output is correct
18 Correct 146 ms 2392 KB Output is correct
19 Correct 101 ms 2396 KB Output is correct
20 Correct 63 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 2 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 2 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2392 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2392 KB Output is correct
49 Correct 1 ms 2392 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 1 ms 2396 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 2 ms 2396 KB Output is correct
56 Correct 1 ms 2348 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 2 ms 2552 KB Output is correct
59 Correct 1 ms 2392 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 1 ms 2396 KB Output is correct
62 Correct 1 ms 2396 KB Output is correct
63 Correct 1 ms 2396 KB Output is correct
64 Correct 1 ms 2392 KB Output is correct
65 Correct 1 ms 2396 KB Output is correct
66 Correct 1 ms 2396 KB Output is correct
67 Correct 1 ms 2396 KB Output is correct
68 Correct 2 ms 2392 KB Output is correct
69 Correct 2 ms 2264 KB Output is correct
70 Correct 2 ms 2396 KB Output is correct
71 Correct 2 ms 2396 KB Output is correct
72 Correct 2 ms 2396 KB Output is correct
73 Correct 2 ms 2396 KB Output is correct
74 Correct 2 ms 2392 KB Output is correct
75 Correct 2 ms 2396 KB Output is correct
76 Correct 2 ms 2396 KB Output is correct
77 Correct 3 ms 2396 KB Output is correct
78 Correct 2 ms 2396 KB Output is correct
79 Correct 1 ms 2396 KB Output is correct
80 Correct 2 ms 2396 KB Output is correct
81 Correct 140 ms 2396 KB Output is correct
82 Correct 148 ms 2448 KB Output is correct
83 Correct 137 ms 2440 KB Output is correct
84 Correct 137 ms 2396 KB Output is correct
85 Correct 138 ms 2392 KB Output is correct
86 Correct 138 ms 2396 KB Output is correct
87 Correct 137 ms 2392 KB Output is correct
88 Correct 6 ms 2392 KB Output is correct
89 Correct 6 ms 2396 KB Output is correct
90 Correct 14 ms 2468 KB Output is correct
91 Correct 24 ms 2396 KB Output is correct
92 Correct 36 ms 2396 KB Output is correct
93 Correct 35 ms 2392 KB Output is correct
94 Correct 76 ms 2396 KB Output is correct
95 Correct 73 ms 2396 KB Output is correct
96 Correct 107 ms 2396 KB Output is correct
97 Correct 110 ms 2396 KB Output is correct
98 Correct 67 ms 2396 KB Output is correct
99 Correct 65 ms 2252 KB Output is correct
100 Correct 73 ms 2440 KB Output is correct
101 Correct 70 ms 2444 KB Output is correct
102 Correct 64 ms 2392 KB Output is correct
103 Correct 63 ms 2396 KB Output is correct
104 Correct 63 ms 2396 KB Output is correct
105 Correct 77 ms 2444 KB Output is correct