oj.uz

Submission #810885

# Submission time Handle Problem Language Result Execution time Memory
810885 2023-08-06T17:08:39 Z erray Toy Train (IOI17_train) C++17
100 / 100
 467 ms 1488 KB 
#include "train.h"
//author: erray
#include <bits/stdc++.h>

using namespace std;
 
#ifdef DEBUG
  #include "/home/ioi/codes/debug.h"
#else
  #define debug(...) (void) 37
#endif


std::vector<int> who_wins(std::vector<int> A, std::vector<int> R, std::vector<int> U, std::vector<int> V) { 
  int N = int(A.size());
  int M = int(U.size());
  vector<vector<int>> rg(N);
  vector<int> outdeg_def(N);
  for (int i = 0; i < M; ++i) {
    rg[V[i]].push_back(U[i]);
    outdeg_def[U[i]] += 1;
  }
  while (true) {
    debug(R);
    auto Expand = [&](vector<int> que, int side) {
      auto outdeg = outdeg_def;
      vector<bool> vis(N);
      for (auto v : que) {
        vis[v] = true;
      }
      for (int it = 0; it < int(que.size()); ++it) {
        int v = que[it];
        for (auto u : rg[v]) {
          if (!vis[u] && (A[u] == side || --outdeg[u] == 0)) {
            que.push_back(u);
            vis[u] = true;
          }
        }
      }
      return vis;
    };
    vector<int> stats;
    for (int i = 0; i < N; ++i) {
      if (R[i]) {
        stats.push_back(i);
      }
    }
    auto inv = Expand(stats, 1);
    vector<int> ends;
    for (int i = 0; i < N; ++i) {
      if (!inv[i]) {
        ends.push_back(i);
      }
    }
    auto end = Expand(ends, 0);
    bool change = false;
    for (int i = 0; i < N; ++i) {
      if (end[i]) {
        change |= R[i];      
        R[i] = false;
      }
    }
    if (!change) {
      for (int i = 0; i < N; ++i) {
        R[i] = !end[i];
      }
      break;
    }
  }
  return R;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 852 KB Output is correct
2 Correct 4 ms 852 KB Output is correct
3 Correct 4 ms 852 KB Output is correct
4 Correct 4 ms 952 KB Output is correct
5 Correct 3 ms 852 KB Output is correct
6 Correct 3 ms 948 KB Output is correct
7 Correct 3 ms 948 KB Output is correct
8 Correct 3 ms 852 KB Output is correct
9 Correct 3 ms 848 KB Output is correct
10 Correct 3 ms 852 KB Output is correct
11 Correct 3 ms 852 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 296 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 280 KB Output is correct
17 Correct 0 ms 296 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 1172 KB Output is correct
2 Correct 96 ms 1364 KB Output is correct
3 Correct 139 ms 1356 KB Output is correct
4 Correct 5 ms 1236 KB Output is correct
5 Correct 6 ms 1204 KB Output is correct
6 Correct 6 ms 1340 KB Output is correct
7 Correct 5 ms 1236 KB Output is correct
8 Correct 5 ms 1208 KB Output is correct
9 Correct 4 ms 1236 KB Output is correct
10 Correct 5 ms 1236 KB Output is correct
11 Correct 5 ms 1236 KB Output is correct
12 Correct 4 ms 1236 KB Output is correct
13 Correct 5 ms 1236 KB Output is correct
14 Correct 5 ms 1240 KB Output is correct
15 Correct 5 ms 1236 KB Output is correct
16 Correct 6 ms 1236 KB Output is correct
17 Correct 5 ms 1340 KB Output is correct
18 Correct 205 ms 1160 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 980 KB Output is correct
2 Correct 5 ms 1156 KB Output is correct
3 Correct 5 ms 1336 KB Output is correct
4 Correct 6 ms 1336 KB Output is correct
5 Correct 5 ms 1200 KB Output is correct
6 Correct 5 ms 1236 KB Output is correct
7 Correct 5 ms 1236 KB Output is correct
8 Correct 5 ms 1236 KB Output is correct
9 Correct 5 ms 1232 KB Output is correct
10 Correct 5 ms 1236 KB Output is correct
11 Correct 5 ms 1236 KB Output is correct
12 Correct 5 ms 1340 KB Output is correct
13 Correct 5 ms 1236 KB Output is correct
14 Correct 5 ms 1108 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 980 KB Output is correct
2 Correct 6 ms 1336 KB Output is correct
3 Correct 5 ms 1236 KB Output is correct
4 Correct 5 ms 1236 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 4 ms 852 KB Output is correct
7 Correct 3 ms 816 KB Output is correct
8 Correct 4 ms 852 KB Output is correct
9 Correct 3 ms 852 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 3 ms 852 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 852 KB Output is correct
2 Correct 4 ms 852 KB Output is correct
3 Correct 4 ms 852 KB Output is correct
4 Correct 4 ms 952 KB Output is correct
5 Correct 3 ms 852 KB Output is correct
6 Correct 3 ms 948 KB Output is correct
7 Correct 3 ms 948 KB Output is correct
8 Correct 3 ms 852 KB Output is correct
9 Correct 3 ms 848 KB Output is correct
10 Correct 3 ms 852 KB Output is correct
11 Correct 3 ms 852 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 304 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 296 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 280 KB Output is correct
28 Correct 0 ms 296 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 47 ms 1172 KB Output is correct
33 Correct 96 ms 1364 KB Output is correct
34 Correct 139 ms 1356 KB Output is correct
35 Correct 5 ms 1236 KB Output is correct
36 Correct 6 ms 1204 KB Output is correct
37 Correct 6 ms 1340 KB Output is correct
38 Correct 5 ms 1236 KB Output is correct
39 Correct 5 ms 1208 KB Output is correct
40 Correct 4 ms 1236 KB Output is correct
41 Correct 5 ms 1236 KB Output is correct
42 Correct 5 ms 1236 KB Output is correct
43 Correct 4 ms 1236 KB Output is correct
44 Correct 5 ms 1236 KB Output is correct
45 Correct 5 ms 1240 KB Output is correct
46 Correct 5 ms 1236 KB Output is correct
47 Correct 6 ms 1236 KB Output is correct
48 Correct 5 ms 1340 KB Output is correct
49 Correct 205 ms 1160 KB Output is correct
50 Correct 4 ms 980 KB Output is correct
51 Correct 5 ms 1156 KB Output is correct
52 Correct 5 ms 1336 KB Output is correct
53 Correct 6 ms 1336 KB Output is correct
54 Correct 5 ms 1200 KB Output is correct
55 Correct 5 ms 1236 KB Output is correct
56 Correct 5 ms 1236 KB Output is correct
57 Correct 5 ms 1236 KB Output is correct
58 Correct 5 ms 1232 KB Output is correct
59 Correct 5 ms 1236 KB Output is correct
60 Correct 5 ms 1236 KB Output is correct
61 Correct 5 ms 1340 KB Output is correct
62 Correct 5 ms 1236 KB Output is correct
63 Correct 5 ms 1108 KB Output is correct
64 Correct 5 ms 980 KB Output is correct
65 Correct 6 ms 1336 KB Output is correct
66 Correct 5 ms 1236 KB Output is correct
67 Correct 5 ms 1236 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 4 ms 852 KB Output is correct
70 Correct 3 ms 816 KB Output is correct
71 Correct 4 ms 852 KB Output is correct
72 Correct 3 ms 852 KB Output is correct
73 Correct 1 ms 468 KB Output is correct
74 Correct 3 ms 852 KB Output is correct
75 Correct 71 ms 1336 KB Output is correct
76 Correct 102 ms 1360 KB Output is correct
77 Correct 152 ms 1488 KB Output is correct
78 Correct 146 ms 1356 KB Output is correct
79 Correct 146 ms 1340 KB Output is correct
80 Correct 5 ms 1236 KB Output is correct
81 Correct 5 ms 1212 KB Output is correct
82 Correct 6 ms 1236 KB Output is correct
83 Correct 6 ms 1236 KB Output is correct
84 Correct 7 ms 1364 KB Output is correct
85 Correct 6 ms 1244 KB Output is correct
86 Correct 6 ms 1236 KB Output is correct
87 Correct 5 ms 1340 KB Output is correct
88 Correct 7 ms 1364 KB Output is correct
89 Correct 6 ms 1236 KB Output is correct
90 Correct 10 ms 1364 KB Output is correct
91 Correct 9 ms 1364 KB Output is correct
92 Correct 16 ms 1324 KB Output is correct
93 Correct 16 ms 1324 KB Output is correct
94 Correct 17 ms 1344 KB Output is correct
95 Correct 18 ms 1344 KB Output is correct
96 Correct 46 ms 1228 KB Output is correct
97 Correct 279 ms 1352 KB Output is correct
98 Correct 403 ms 1236 KB Output is correct
99 Correct 467 ms 1348 KB Output is correct
100 Correct 192 ms 980 KB Output is correct