oj.uz

Submission #941202

# Submission time Handle Problem Language Result Execution time Memory
941202 2024-03-08T09:28:42 Z peterandvoi Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 201 ms 2552 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef ngu
#include "debug.h"
#else
#define debug(...) 42
#endif

const int N = 505;

int n, k;
double dp[N][N];
pair<double, double> a[N];

double get(int mid) {
    for (int i = 0; i <= n; ++i) {
        for (int j = 0; j <= k - mid; ++j) {
            dp[i][j] = 1e9;
        }
    }
    dp[0][0] = 0;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j <= k - mid; ++j) {
            if (j < k - mid) {
                dp[i + 1][j + 1] = min(dp[i + 1][j + 1], dp[i][j] + 1.0 * a[i + 1].first / (mid + 1));
            }
            int x = i - j;
            dp[i + 1][j] = min(dp[i + 1][j], dp[i][j] + (x < mid ? 1.0 * a[i + 1].second / (x + 1) : 0));
        }
    }
    return dp[n][k - mid];
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    #ifdef ngu
    freopen("test.inp", "r", stdin);
    freopen("test.out", "w", stdout);
    #endif
    cout << fixed << setprecision(15);
    cin >> n >> k;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i].first >> a[i].second;
        a[i].second = a[i].second == -1 ? 1e9 : a[i].second;
    }
    sort(a + 1, a + n + 1, [&](auto x, auto y) {
        return x.second < y.second;
    });
    int l = 1, r = n;
    double res = 1e9;
    for (int i = 1; i <= n; ++i) {
        r -= a[i].second == 1e9;
    }
    r = min(r, k);
    for (int i = 0; i <= r; ++i) {
        res = min(res, get(i));
    }
    cout << res;
//    while (l <= r) {
//        int mid = l + r >> 1;
//        if (get(mid - 1) >= get(mid)) {
//            res = mid;
//            l = mid + 1;
//        } else {
//            r = mid - 1;
//        }
//    }
//    cout << get(res);
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:52:9: warning: unused variable 'l' [-Wunused-variable]
   52 |     int l = 1, r = n;
      |         ^

Subtask #1
5.0 / 5.0

# 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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 15 ms 2448 KB Output is correct
13 Correct 15 ms 2396 KB Output is correct
14 Correct 16 ms 2444 KB Output is correct
15 Correct 85 ms 2396 KB Output is correct
16 Correct 83 ms 2396 KB Output is correct
17 Correct 39 ms 2424 KB Output is correct
18 Correct 189 ms 2440 KB Output is correct
19 Correct 155 ms 2396 KB Output is correct
20 Correct 58 ms 2424 KB Output is correct

Subtask #3
11.0 / 11.0

# 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 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 348 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 0 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 348 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 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 600 KB Output is correct
40 Correct 0 ms 348 KB Output is correct

Subtask #5
33.0 / 33.0

# 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 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 348 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 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 600 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 860 KB Output is correct
42 Correct 0 ms 604 KB Output is correct
43 Correct 1 ms 860 KB Output is correct
44 Correct 1 ms 860 KB Output is correct
45 Correct 1 ms 860 KB Output is correct
46 Correct 1 ms 860 KB Output is correct
47 Correct 1 ms 860 KB Output is correct
48 Correct 1 ms 860 KB Output is correct
49 Correct 2 ms 764 KB Output is correct
50 Correct 2 ms 856 KB Output is correct
51 Correct 3 ms 860 KB Output is correct
52 Correct 2 ms 860 KB Output is correct
53 Correct 1 ms 856 KB Output is correct
54 Correct 1 ms 860 KB Output is correct
55 Correct 1 ms 860 KB Output is correct
56 Correct 2 ms 856 KB Output is correct
57 Correct 1 ms 860 KB Output is correct
58 Correct 1 ms 720 KB Output is correct
59 Correct 1 ms 860 KB Output is correct
60 Correct 1 ms 856 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 189 ms 2424 KB Output is correct
2 Correct 188 ms 2420 KB Output is correct
3 Correct 186 ms 2424 KB Output is correct
4 Correct 189 ms 2424 KB Output is correct
5 Correct 187 ms 2420 KB Output is correct
6 Correct 185 ms 2396 KB Output is correct
7 Correct 201 ms 2392 KB Output is correct

Subtask #7
23.0 / 23.0

# 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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 15 ms 2448 KB Output is correct
13 Correct 15 ms 2396 KB Output is correct
14 Correct 16 ms 2444 KB Output is correct
15 Correct 85 ms 2396 KB Output is correct
16 Correct 83 ms 2396 KB Output is correct
17 Correct 39 ms 2424 KB Output is correct
18 Correct 189 ms 2440 KB Output is correct
19 Correct 155 ms 2396 KB Output is correct
20 Correct 58 ms 2424 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 600 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 600 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 344 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 1 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 600 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 1 ms 860 KB Output is correct
62 Correct 0 ms 604 KB Output is correct
63 Correct 1 ms 860 KB Output is correct
64 Correct 1 ms 860 KB Output is correct
65 Correct 1 ms 860 KB Output is correct
66 Correct 1 ms 860 KB Output is correct
67 Correct 1 ms 860 KB Output is correct
68 Correct 1 ms 860 KB Output is correct
69 Correct 2 ms 764 KB Output is correct
70 Correct 2 ms 856 KB Output is correct
71 Correct 3 ms 860 KB Output is correct
72 Correct 2 ms 860 KB Output is correct
73 Correct 1 ms 856 KB Output is correct
74 Correct 1 ms 860 KB Output is correct
75 Correct 1 ms 860 KB Output is correct
76 Correct 2 ms 856 KB Output is correct
77 Correct 1 ms 860 KB Output is correct
78 Correct 1 ms 720 KB Output is correct
79 Correct 1 ms 860 KB Output is correct
80 Correct 1 ms 856 KB Output is correct
81 Correct 189 ms 2424 KB Output is correct
82 Correct 188 ms 2420 KB Output is correct
83 Correct 186 ms 2424 KB Output is correct
84 Correct 189 ms 2424 KB Output is correct
85 Correct 187 ms 2420 KB Output is correct
86 Correct 185 ms 2396 KB Output is correct
87 Correct 201 ms 2392 KB Output is correct
88 Correct 3 ms 2552 KB Output is correct
89 Correct 3 ms 2396 KB Output is correct
90 Correct 11 ms 2396 KB Output is correct
91 Correct 13 ms 2396 KB Output is correct
92 Correct 50 ms 2396 KB Output is correct
93 Correct 51 ms 2424 KB Output is correct
94 Correct 98 ms 2428 KB Output is correct
95 Correct 98 ms 2424 KB Output is correct
96 Correct 146 ms 2392 KB Output is correct
97 Correct 145 ms 2344 KB Output is correct
98 Correct 87 ms 2396 KB Output is correct
99 Correct 83 ms 2396 KB Output is correct
100 Correct 83 ms 2396 KB Output is correct
101 Correct 84 ms 2396 KB Output is correct
102 Correct 85 ms 2432 KB Output is correct
103 Correct 84 ms 2392 KB Output is correct
104 Correct 84 ms 2396 KB Output is correct
105 Correct 86 ms 2392 KB Output is correct