oj.uz

Submission #367532

# Submission time Handle Problem Language Result Execution time Memory
367532 2021-02-17T15:37:58 Z spatarel Travelling Salesperson (CCO20_day2problem1) C++17
25 / 25
 483 ms 24316 KB 
#include <stdio.h>
#include <stack>

int main() {
  int n;
  scanf("%d", &n);
  bool color[1 + n][1 + n];
  char edges[1 + n + 1];
  for (int i = 2; i <= n; i++) {
    scanf("%s", edges + 1);
    for (int j = 1; j < i; j++) {
      color[i][j] = color[j][i] = (edges[j] == 'R');
    }
  }
  int vertices[1 + n];
  for (int u = 1; u <= n; u++) {
    vertices[u] = u;
  }
  for (int end = 1; end <= n; end++) {
    std::stack<int> reds;
    std::stack<int> greens;
    std::swap(vertices[end], vertices[n]);
    for (int i = 1; i <= n; i++) {
      int u = vertices[i];
      if (reds.empty() || color[reds.top()][u]) {
        reds.push(u);
      } else if (greens.empty() || !color[greens.top()][u]) {
        greens.push(u);
      } else if (color[reds.top()][greens.top()]) {
        reds.push(greens.top());
        greens.pop();
        reds.push(u);
      } else {
        greens.push(reds.top());
        reds.pop();
        greens.push(u);
      }
    }
    std::swap(vertices[end], vertices[n]);
    if (!greens.empty() && greens.top() == end) {
      std::swap(reds, greens);
    }
    
    printf("%d\n", n);
    while (!reds.empty()) {
      printf("%d ", reds.top());
      reds.pop();
    }
    while (!greens.empty()) {
      printf("%d ", greens.top());
      greens.pop();
    }
    printf("\n");
  }
  return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:6:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    6 |   scanf("%d", &n);
      |   ~~~~~^~~~~~~~~~
Main.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |     scanf("%s", edges + 1);
      |     ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 0 ms 364 KB Output is correct
16 Correct 440 ms 24044 KB Output is correct
17 Correct 443 ms 24044 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 436 ms 24028 KB Output is correct
20 Correct 463 ms 24108 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 449 ms 24300 KB Output is correct
23 Correct 471 ms 24032 KB Output is correct
24 Correct 2 ms 364 KB Output is correct
25 Correct 447 ms 23828 KB Output is correct
26 Correct 458 ms 24044 KB Output is correct
27 Correct 27 ms 1644 KB Output is correct
28 Correct 439 ms 24044 KB Output is correct
29 Correct 433 ms 23916 KB Output is correct
30 Correct 443 ms 24044 KB Output is correct
31 Correct 451 ms 23916 KB Output is correct
32 Correct 425 ms 23916 KB Output is correct
33 Correct 441 ms 24044 KB Output is correct
34 Correct 432 ms 23960 KB Output is correct
35 Correct 442 ms 24044 KB Output is correct
36 Correct 444 ms 24172 KB Output is correct
37 Correct 437 ms 24044 KB Output is correct
38 Correct 440 ms 24044 KB Output is correct
39 Correct 442 ms 23916 KB Output is correct
40 Correct 426 ms 24044 KB Output is correct
41 Correct 441 ms 24140 KB Output is correct
42 Correct 428 ms 23808 KB Output is correct
43 Correct 439 ms 24044 KB Output is correct
44 Correct 451 ms 23916 KB Output is correct
45 Correct 428 ms 23956 KB Output is correct
46 Correct 435 ms 23848 KB Output is correct
47 Correct 473 ms 24044 KB Output is correct
48 Correct 429 ms 23996 KB Output is correct
49 Correct 445 ms 24044 KB Output is correct
50 Correct 425 ms 23916 KB Output is correct
51 Correct 445 ms 23788 KB Output is correct
52 Correct 446 ms 24044 KB Output is correct
53 Correct 443 ms 23916 KB Output is correct
54 Correct 449 ms 24044 KB Output is correct
55 Correct 448 ms 24044 KB Output is correct
56 Correct 445 ms 24044 KB Output is correct
57 Correct 458 ms 24044 KB Output is correct
58 Correct 451 ms 24044 KB Output is correct
59 Correct 447 ms 24044 KB Output is correct
60 Correct 458 ms 24044 KB Output is correct
61 Correct 448 ms 24044 KB Output is correct
62 Correct 467 ms 24172 KB Output is correct
63 Correct 457 ms 24044 KB Output is correct
64 Correct 464 ms 24044 KB Output is correct
65 Correct 465 ms 24044 KB Output is correct
66 Correct 452 ms 24044 KB Output is correct
67 Correct 448 ms 24172 KB Output is correct
68 Correct 455 ms 24044 KB Output is correct
69 Correct 448 ms 24044 KB Output is correct
70 Correct 450 ms 24044 KB Output is correct
71 Correct 453 ms 24172 KB Output is correct
72 Correct 465 ms 24172 KB Output is correct
73 Correct 472 ms 24172 KB Output is correct
74 Correct 471 ms 24044 KB Output is correct
75 Correct 452 ms 24076 KB Output is correct
76 Correct 457 ms 24044 KB Output is correct
77 Correct 460 ms 24044 KB Output is correct
78 Correct 449 ms 24044 KB Output is correct
79 Correct 452 ms 24044 KB Output is correct
80 Correct 468 ms 24172 KB Output is correct
81 Correct 466 ms 24300 KB Output is correct
82 Correct 461 ms 24172 KB Output is correct
83 Correct 447 ms 24044 KB Output is correct
84 Correct 451 ms 24316 KB Output is correct
85 Correct 454 ms 24300 KB Output is correct
86 Correct 457 ms 24136 KB Output is correct
87 Correct 28 ms 1772 KB Output is correct
88 Correct 28 ms 1644 KB Output is correct
89 Correct 462 ms 24172 KB Output is correct
90 Correct 455 ms 23660 KB Output is correct
91 Correct 28 ms 1644 KB Output is correct
92 Correct 28 ms 1644 KB Output is correct
93 Correct 483 ms 23276 KB Output is correct
94 Correct 461 ms 23020 KB Output is correct
95 Correct 28 ms 1644 KB Output is correct
96 Correct 28 ms 1644 KB Output is correct
97 Correct 465 ms 22700 KB Output is correct
98 Correct 460 ms 22380 KB Output is correct