oj.uz

Submission #785119

# Submission time Handle Problem Language Result Execution time Memory
785119 2023-07-17T05:31:19 Z gun_gan Let's Win the Election (JOI22_ho_t3) C++17
72 / 100
 2500 ms 1018460 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
const int MX = 505;
 
int N, K;
int a[MX], b[MX];
 
vector<pair<int, int>> v;
 
int main() {
      cin.tie(0); ios_base::sync_with_stdio(0);
 
      cin >> N >> K;

      int tot = 0;
      for(int i = 1; i <= N; i++) {
            cin >> a[i] >> b[i];
            if(b[i] != -1) tot++;
            else b[i] = 1e9;
            v.push_back({b[i], a[i]});
      }
 
      sort(v.begin(), v.end());

      if(K == N) {
            vector<vector<double>> dp(N + 5, vector<double>(N + 5, 1e9));
            double ans = 1e9;
            for(int x = 0; x <= min(K, tot); x++) { // fixed collaborator
       
                  for(int i = 0; i < N + 5; i++)
                        for(int k = 0; k < N + 5; k++)
                              dp[i][k] = 1e9;
             
                  dp[0][0] = 0;
                  for(int i = 0; i < N; i++) {
                        for(int k = 0; k <= N; k++) { // num of collaborator
                              if(dp[i][k] == 1e9) continue;
 
                              // ambil vote
                              dp[i + 1][k] = min(dp[i + 1][k], dp[i][k] + (double) v[i].second / (x + 1));
                              
                              // ambil collaborator
                              if(v[i].first != 1e9) 
                                    dp[i + 1][k + 1] = min(dp[i + 1][k + 1], dp[i][k] + (double) v[i].first / (k + 1));
                        }
                  }
       
                  ans = min(ans, dp[N][x]);
            }
       
            cout << fixed << setprecision(15) << ans << '\n';
      } else {
            vector<vector<vector<double>>> dp(N + 5, vector<vector<double>> (N + 5, vector<double>(N + 5, 1e9)));
            double ans = 1e9;
            for(int x = 0; x <= min(K, tot); x++) { // fixed collaborator
       
                  for(int i = 0; i < N + 5; i++)
                        for(int j = 0; j < N + 5; j++)
                              for(int k = 0; k < N + 5; k++)
                                    dp[i][j][k] = 1e9;
             
                  dp[0][0][0] = 0;
                  for(int i = 0; i < N; i++) {
                        for(int j = 0; j <= N; j++) { // votes
                              for(int k = 0; k <= N; k++) { // num of collaborator
                                    if(dp[i][j][k] == 1e9) continue;
             
                                    // skip
                                    dp[i + 1][j][k] = min(dp[i + 1][j][k], dp[i][j][k]);
       
                                    // ambil vote
                                    dp[i + 1][j + 1][k] = min(dp[i + 1][j + 1][k], dp[i][j][k] + (double) v[i].second / (x + 1));
                                    
                                    // ambil collaborator
                                    if(v[i].first != 1e9) 
                                          dp[i + 1][j + 1][k + 1] = min(dp[i + 1][j + 1][k + 1], dp[i][j][k] + (double) v[i].first / (k + 1));
                              }
                        }
                  }
       
                  ans = min(ans, dp[N][K][x]);
            }
       
            cout << fixed << setprecision(15) << ans << '\n';
      }
      
 
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 583 ms 1018436 KB Output is correct
6 Correct 534 ms 1018460 KB Output is correct
7 Correct 554 ms 1018404 KB Output is correct
8 Correct 561 ms 1018452 KB Output is correct
9 Correct 1 ms 2260 KB Output is correct
10 Correct 562 ms 1018364 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 583 ms 1018436 KB Output is correct
6 Correct 534 ms 1018460 KB Output is correct
7 Correct 554 ms 1018404 KB Output is correct
8 Correct 561 ms 1018452 KB Output is correct
9 Correct 1 ms 2260 KB Output is correct
10 Correct 562 ms 1018364 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Execution timed out 2580 ms 1018360 KB Time limit exceeded
13 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 500 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 352 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 468 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 500 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 352 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 35 ms 9776 KB Output is correct
42 Correct 37 ms 9812 KB Output is correct
43 Correct 66 ms 9812 KB Output is correct
44 Correct 70 ms 9808 KB Output is correct
45 Correct 118 ms 9812 KB Output is correct
46 Correct 154 ms 9812 KB Output is correct
47 Correct 137 ms 9812 KB Output is correct
48 Correct 150 ms 9800 KB Output is correct
49 Correct 175 ms 9812 KB Output is correct
50 Correct 179 ms 9812 KB Output is correct
51 Correct 3 ms 340 KB Output is correct
52 Correct 2 ms 340 KB Output is correct
53 Correct 134 ms 9812 KB Output is correct
54 Correct 146 ms 9812 KB Output is correct
55 Correct 157 ms 9812 KB Output is correct
56 Correct 133 ms 9812 KB Output is correct
57 Correct 167 ms 9804 KB Output is correct
58 Correct 147 ms 9800 KB Output is correct
59 Correct 137 ms 9812 KB Output is correct
60 Correct 142 ms 9812 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 285 ms 2332 KB Output is correct
2 Correct 284 ms 2328 KB Output is correct
3 Correct 280 ms 2244 KB Output is correct
4 Correct 282 ms 2332 KB Output is correct
5 Correct 289 ms 2328 KB Output is correct
6 Correct 298 ms 2332 KB Output is correct
7 Correct 297 ms 2332 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 583 ms 1018436 KB Output is correct
6 Correct 534 ms 1018460 KB Output is correct
7 Correct 554 ms 1018404 KB Output is correct
8 Correct 561 ms 1018452 KB Output is correct
9 Correct 1 ms 2260 KB Output is correct
10 Correct 562 ms 1018364 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Execution timed out 2580 ms 1018360 KB Time limit exceeded
13 Halted 0 ms 0 KB -