oj.uz

Submission #528915

# Submission time Handle Problem Language Result Execution time Memory
528915 2022-02-21T18:09:33 Z FireGhost1301 Let's Win the Election (JOI22_ho_t3) C++11
100 / 100
 261 ms 2396 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 500 + 3;
const double inf = 1e6 + 3;
int n, k, a[N], b[N], p[N];
double f[N][N];

double calc(int m) {
    for (int i = 1; i <= n; ++i) {
        for (int j = 0; j <= i; ++j) {
            f[i][j] = inf;
            if (j) f[i][j] = min(f[i][j], f[i - 1][j - 1] + (double)a[p[i]] / (m + 1));
            if (j < i) {
                if (i - j - 1 < m) f[i][j] = min(f[i][j], f[i - 1][j] + (double)b[p[i]] / (i - j));
                else f[i][j] = min(f[i][j], f[i - 1][j]);
            }
        }
    }
    return f[n][k - m];
}

void solve() {
    cin >> n >> k;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i] >> b[i];
        if (b[i] == -1) b[i] = INT_MAX;
    }

    iota(p + 1, p + n + 1, 1);
    sort(p + 1, p + n + 1, [&](int i, int j) {
        if (b[i] != b[j]) return b[i] < b[j];
        return a[i] < a[j];
    });
    
    double ans = inf;
    for (int i = 0; i <= k; ++i)
        ans = min(ans, calc(i));

    cout << ans;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout << setprecision(15) << fixed;
    solve();
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 17 ms 2296 KB Output is correct
6 Correct 42 ms 2252 KB Output is correct
7 Correct 88 ms 2252 KB Output is correct
8 Correct 145 ms 2252 KB Output is correct
9 Correct 254 ms 2276 KB Output is correct
10 Correct 135 ms 2252 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 17 ms 2296 KB Output is correct
6 Correct 42 ms 2252 KB Output is correct
7 Correct 88 ms 2252 KB Output is correct
8 Correct 145 ms 2252 KB Output is correct
9 Correct 254 ms 2276 KB Output is correct
10 Correct 135 ms 2252 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 53 ms 2276 KB Output is correct
13 Correct 54 ms 2288 KB Output is correct
14 Correct 50 ms 2272 KB Output is correct
15 Correct 128 ms 2280 KB Output is correct
16 Correct 129 ms 2272 KB Output is correct
17 Correct 135 ms 2252 KB Output is correct
18 Correct 222 ms 2272 KB Output is correct
19 Correct 196 ms 2252 KB Output is correct
20 Correct 190 ms 2272 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 0 ms 364 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 0 ms 364 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 588 KB Output is correct
42 Correct 1 ms 716 KB Output is correct
43 Correct 1 ms 588 KB Output is correct
44 Correct 1 ms 716 KB Output is correct
45 Correct 2 ms 716 KB Output is correct
46 Correct 1 ms 716 KB Output is correct
47 Correct 3 ms 716 KB Output is correct
48 Correct 2 ms 588 KB Output is correct
49 Correct 2 ms 588 KB Output is correct
50 Correct 2 ms 716 KB Output is correct
51 Correct 2 ms 716 KB Output is correct
52 Correct 2 ms 716 KB Output is correct
53 Correct 2 ms 716 KB Output is correct
54 Correct 2 ms 716 KB Output is correct
55 Correct 2 ms 716 KB Output is correct
56 Correct 2 ms 588 KB Output is correct
57 Correct 1 ms 716 KB Output is correct
58 Correct 2 ms 588 KB Output is correct
59 Correct 1 ms 712 KB Output is correct
60 Correct 2 ms 716 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 209 ms 2288 KB Output is correct
2 Correct 213 ms 2280 KB Output is correct
3 Correct 224 ms 2280 KB Output is correct
4 Correct 261 ms 2276 KB Output is correct
5 Correct 200 ms 2252 KB Output is correct
6 Correct 192 ms 2252 KB Output is correct
7 Correct 211 ms 2252 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 17 ms 2296 KB Output is correct
6 Correct 42 ms 2252 KB Output is correct
7 Correct 88 ms 2252 KB Output is correct
8 Correct 145 ms 2252 KB Output is correct
9 Correct 254 ms 2276 KB Output is correct
10 Correct 135 ms 2252 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 53 ms 2276 KB Output is correct
13 Correct 54 ms 2288 KB Output is correct
14 Correct 50 ms 2272 KB Output is correct
15 Correct 128 ms 2280 KB Output is correct
16 Correct 129 ms 2272 KB Output is correct
17 Correct 135 ms 2252 KB Output is correct
18 Correct 222 ms 2272 KB Output is correct
19 Correct 196 ms 2252 KB Output is correct
20 Correct 190 ms 2272 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 0 ms 344 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 0 ms 332 KB Output is correct
50 Correct 0 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 0 ms 364 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 1 ms 588 KB Output is correct
62 Correct 1 ms 716 KB Output is correct
63 Correct 1 ms 588 KB Output is correct
64 Correct 1 ms 716 KB Output is correct
65 Correct 2 ms 716 KB Output is correct
66 Correct 1 ms 716 KB Output is correct
67 Correct 3 ms 716 KB Output is correct
68 Correct 2 ms 588 KB Output is correct
69 Correct 2 ms 588 KB Output is correct
70 Correct 2 ms 716 KB Output is correct
71 Correct 2 ms 716 KB Output is correct
72 Correct 2 ms 716 KB Output is correct
73 Correct 2 ms 716 KB Output is correct
74 Correct 2 ms 716 KB Output is correct
75 Correct 2 ms 716 KB Output is correct
76 Correct 2 ms 588 KB Output is correct
77 Correct 1 ms 716 KB Output is correct
78 Correct 2 ms 588 KB Output is correct
79 Correct 1 ms 712 KB Output is correct
80 Correct 2 ms 716 KB Output is correct
81 Correct 209 ms 2288 KB Output is correct
82 Correct 213 ms 2280 KB Output is correct
83 Correct 224 ms 2280 KB Output is correct
84 Correct 261 ms 2276 KB Output is correct
85 Correct 200 ms 2252 KB Output is correct
86 Correct 192 ms 2252 KB Output is correct
87 Correct 211 ms 2252 KB Output is correct
88 Correct 22 ms 2292 KB Output is correct
89 Correct 16 ms 2296 KB Output is correct
90 Correct 42 ms 2252 KB Output is correct
91 Correct 43 ms 2276 KB Output is correct
92 Correct 89 ms 2252 KB Output is correct
93 Correct 93 ms 2252 KB Output is correct
94 Correct 185 ms 2396 KB Output is correct
95 Correct 142 ms 2252 KB Output is correct
96 Correct 191 ms 2276 KB Output is correct
97 Correct 196 ms 2276 KB Output is correct
98 Correct 129 ms 2252 KB Output is correct
99 Correct 129 ms 2252 KB Output is correct
100 Correct 131 ms 2280 KB Output is correct
101 Correct 137 ms 2272 KB Output is correct
102 Correct 146 ms 2252 KB Output is correct
103 Correct 131 ms 2272 KB Output is correct
104 Correct 129 ms 2252 KB Output is correct
105 Correct 130 ms 2276 KB Output is correct