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Submission #137973

# Submission time Handle Problem Language Result Execution time Memory
137973 2019-07-28T16:47:53 Z toonewbie Simurgh (IOI17_simurgh) C++17
30 / 100
 380 ms 3704 KB 
#include "simurgh.h"
#include<bits/stdc++.h>
 
using namespace std;
 
const int N = 55;
const int _ = 1;
int g[N][N], gud[N * N];
vector <int> cur;

int n;
int used[N];
void init(int v) {
  used[v] = 1;
  for (int i = 0; i < n; i++) {
    if (used[i] == 0 && g[v][i] > -1) {
      cur.push_back(g[v][i]);
      init(i);
    }
  }
}
void dfs(int v) {
  used[v] = 1;
  for (int i = 0; i < n; i++) {
    if (used[i] == 0 && g[v][i] > -1 && gud[g[v][i]] == 1) {
      dfs(i);
    }
  }
}
 
int check() {
  memset(used, 0, sizeof(used));
  memset(gud, 0, sizeof(gud));
  for (int i : cur) gud[i] = 1;
  dfs(0);
  for (int i = 0; i < n; i++) {
    if (used[i] == 0) return 0;
  }
  return 1;
}
 
vector <int> find_roads(int n, vector <int> u, vector <int> v) {
  ::n = n;
  int m = u.size();
  memset(g, -1, sizeof(g));
  for (int i = 0; i < m; i++) {
    g[u[i]][v[i]] = g[v[i]][u[i]] = i;
  }
  init(0);
  while(3^_^3) {
    int now = count_common_roads(cur);
    if (now == n - 1) return cur;
    for (int i = 0; i < n - 1; i++) {
      for (int j = 0; j < m; j++) {
        if (cur[i] != j) {
          int old = cur[i];
          cur[i] = j;
          if (check() == 1) {
            int noww = count_common_roads(cur);
            if (noww > now) {
              now = noww;
            } else cur[i] = old;
          } else cur[i] = old;
        }
      }
    }
  }
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 380 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 4 ms 376 KB correct
9 Correct 2 ms 376 KB correct
10 Correct 2 ms 380 KB correct
11 Correct 2 ms 380 KB correct
12 Correct 2 ms 376 KB correct
13 Correct 2 ms 376 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 380 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 4 ms 376 KB correct
9 Correct 2 ms 376 KB correct
10 Correct 2 ms 380 KB correct
11 Correct 2 ms 380 KB correct
12 Correct 2 ms 376 KB correct
13 Correct 2 ms 376 KB correct
14 Correct 344 ms 476 KB correct
15 Correct 269 ms 408 KB correct
16 Correct 291 ms 508 KB correct
17 Correct 373 ms 376 KB correct
18 Correct 170 ms 376 KB correct
19 Correct 330 ms 504 KB correct
20 Correct 345 ms 504 KB correct
21 Correct 380 ms 376 KB correct
22 Correct 264 ms 376 KB correct
23 Correct 231 ms 376 KB correct
24 Correct 213 ms 476 KB correct
25 Correct 38 ms 376 KB correct
26 Correct 210 ms 504 KB correct
27 Correct 253 ms 376 KB correct
28 Correct 94 ms 376 KB correct
29 Correct 47 ms 388 KB correct
30 Correct 265 ms 428 KB correct
31 Correct 244 ms 376 KB correct
32 Correct 278 ms 504 KB correct
33 Correct 246 ms 380 KB correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 380 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 4 ms 376 KB correct
9 Correct 2 ms 376 KB correct
10 Correct 2 ms 380 KB correct
11 Correct 2 ms 380 KB correct
12 Correct 2 ms 376 KB correct
13 Correct 2 ms 376 KB correct
14 Correct 344 ms 476 KB correct
15 Correct 269 ms 408 KB correct
16 Correct 291 ms 508 KB correct
17 Correct 373 ms 376 KB correct
18 Correct 170 ms 376 KB correct
19 Correct 330 ms 504 KB correct
20 Correct 345 ms 504 KB correct
21 Correct 380 ms 376 KB correct
22 Correct 264 ms 376 KB correct
23 Correct 231 ms 376 KB correct
24 Correct 213 ms 476 KB correct
25 Correct 38 ms 376 KB correct
26 Correct 210 ms 504 KB correct
27 Correct 253 ms 376 KB correct
28 Correct 94 ms 376 KB correct
29 Correct 47 ms 388 KB correct
30 Correct 265 ms 428 KB correct
31 Correct 244 ms 376 KB correct
32 Correct 278 ms 504 KB correct
33 Correct 246 ms 380 KB correct
34 Runtime error 10 ms 1656 KB Execution killed with signal 11 (could be triggered by violating memory limits)
35 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB correct
2 Correct 2 ms 376 KB correct
3 Runtime error 22 ms 3704 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB correct
2 Correct 2 ms 376 KB correct
3 Correct 2 ms 376 KB correct
4 Correct 2 ms 380 KB correct
5 Correct 2 ms 376 KB correct
6 Correct 2 ms 376 KB correct
7 Correct 2 ms 376 KB correct
8 Correct 4 ms 376 KB correct
9 Correct 2 ms 376 KB correct
10 Correct 2 ms 380 KB correct
11 Correct 2 ms 380 KB correct
12 Correct 2 ms 376 KB correct
13 Correct 2 ms 376 KB correct
14 Correct 344 ms 476 KB correct
15 Correct 269 ms 408 KB correct
16 Correct 291 ms 508 KB correct
17 Correct 373 ms 376 KB correct
18 Correct 170 ms 376 KB correct
19 Correct 330 ms 504 KB correct
20 Correct 345 ms 504 KB correct
21 Correct 380 ms 376 KB correct
22 Correct 264 ms 376 KB correct
23 Correct 231 ms 376 KB correct
24 Correct 213 ms 476 KB correct
25 Correct 38 ms 376 KB correct
26 Correct 210 ms 504 KB correct
27 Correct 253 ms 376 KB correct
28 Correct 94 ms 376 KB correct
29 Correct 47 ms 388 KB correct
30 Correct 265 ms 428 KB correct
31 Correct 244 ms 376 KB correct
32 Correct 278 ms 504 KB correct
33 Correct 246 ms 380 KB correct
34 Runtime error 10 ms 1656 KB Execution killed with signal 11 (could be triggered by violating memory limits)
35 Halted 0 ms 0 KB -