oj.uz

Submission #302688

# Submission time Handle Problem Language Result Execution time Memory
302688 2020-09-19T04:04:53 Z kevlee Simurgh (IOI17_simurgh) C++17
51 / 100
 304 ms 7032 KB 
#include "simurgh.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mod 1000000007
#define h1 7897897897897897
#define h2 7897466719774591
#define b1 98762051
#define b2 98765431
#define inf 1000000000
#define pi 3.1415926535897932384626
#define LMAX 9223372036854775807
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define vp vector<pii>
#define SET(a, b) memset(a, b, sizeof(a))
#define all(x) (x).begin(), (x).end()
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (a); i >= (b); i--)
vi ans;
int m;
vp edges[505];
vi nodes[505];
int group[505];
bool used[505];
int asked[50005];
int f(int x) {
  return x == group[x] ? x : group[x] = f(group[x]);
}
vi find_roads(int n, vi u, vi v) {
  m = u.size();
  FOR(i, 0, m-1) {
    edges[u[i]].emplace_back(v[i], i);
    edges[v[i]].emplace_back(u[i], i);
  }
  FOR(i, 0, n-1) {
    int sz = edges[i].size();
    if (sz == 1) {
      ans.pb(edges[i][0].se);
      continue;
    }
    FOR(j, 0, n-1) group[j] = j;
    vi query;
    FOR(j, 0, m-1) {
      if (u[j] == i || v[j] == i) continue;
      int x = f(u[j]);
      int y = f(v[j]);
      if (x != y) {
        query.pb(j);
        group[x] = y;
      }
    }
    FOR(j, 0, n-1) nodes[j].clear();
    FOR(j, 0, edges[i].size() - 1) {
      nodes[f(edges[i][j].fi)].pb(edges[i][j].fi);
    }
    FOR(k, 0, n-1) {
      //cout << i <<"  "<<k << "  " << nodes[k].size() << endl; 
      if (nodes[k].size() == 0 || k == i) continue;
      vp res;
      vi ask = query;
      FOR(j, 0, n-1) used[j] = false;
      used[k] = used[i] = true;
      vi candidate;
      FOR(j, 0, edges[i].size() - 1) {
        int x = f(edges[i][j].fi);
        if (!used[x]) {
          used[x] = true;
          ask.pb(edges[i][j].se);
        } else if (x == k) {
          candidate.pb(edges[i][j].se);
        }
      }
      bool fir = true;
      for (auto it: candidate) {
        if (asked[it]) {
          if (asked[it] == 2 && fir) {
            fir = false;
            goto there;
          }
          continue;
        }
        there:;
        ask.pb(it);
        asked[it] = 1;
        //for (auto q: ask) cout << q <<' ';
        //cout << endl;
        int cnt = count_common_roads(ask);
        res.pb({cnt, it});
        ask.pop_back();
      }
    
      sort(res.rbegin(), res.rend());
      for (auto p: res) {
        if (p.fi != res[0].fi) {
          break;
        }
        ans.pb(p.se);
        asked[p.se] = 2;
      }
    }
  }
  sort(all(ans));
  auto iter = unique(all(ans));
  ans.resize(distance(ans.begin(), iter));
  //cout << ans.size() << endl;
  //for (auto it: ans) cout << it << ' ' ;
  //cout << endl;
  return ans;
}

Compilation message

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:23:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 | #define FOR(i, a, b) for (int i = (a); i <= (b); i++)
      |                                          ^
simurgh.cpp:59:5: note: in expansion of macro 'FOR'
   59 |     FOR(j, 0, edges[i].size() - 1) {
      |     ^~~
simurgh.cpp:23:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 | #define FOR(i, a, b) for (int i = (a); i <= (b); i++)
      |                                          ^
simurgh.cpp:70:7: note: in expansion of macro 'FOR'
   70 |       FOR(j, 0, edges[i].size() - 1) {
      |       ^~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB correct
2 Correct 0 ms 384 KB correct
3 Correct 1 ms 384 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 0 ms 384 KB correct
6 Correct 1 ms 384 KB correct
7 Correct 1 ms 384 KB correct
8 Correct 1 ms 512 KB correct
9 Correct 1 ms 384 KB correct
10 Correct 0 ms 384 KB correct
11 Correct 0 ms 384 KB correct
12 Correct 0 ms 384 KB correct
13 Correct 0 ms 384 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB correct
2 Correct 0 ms 384 KB correct
3 Correct 1 ms 384 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 0 ms 384 KB correct
6 Correct 1 ms 384 KB correct
7 Correct 1 ms 384 KB correct
8 Correct 1 ms 512 KB correct
9 Correct 1 ms 384 KB correct
10 Correct 0 ms 384 KB correct
11 Correct 0 ms 384 KB correct
12 Correct 0 ms 384 KB correct
13 Correct 0 ms 384 KB correct
14 Correct 3 ms 384 KB correct
15 Correct 3 ms 384 KB correct
16 Correct 3 ms 360 KB correct
17 Correct 3 ms 384 KB correct
18 Correct 2 ms 384 KB correct
19 Correct 3 ms 384 KB correct
20 Correct 4 ms 384 KB correct
21 Correct 3 ms 384 KB correct
22 Correct 2 ms 384 KB correct
23 Correct 2 ms 384 KB correct
24 Correct 2 ms 384 KB correct
25 Correct 1 ms 384 KB correct
26 Correct 2 ms 384 KB correct
27 Correct 2 ms 384 KB correct
28 Correct 1 ms 384 KB correct
29 Correct 1 ms 384 KB correct
30 Correct 2 ms 384 KB correct
31 Correct 2 ms 384 KB correct
32 Correct 2 ms 384 KB correct
33 Correct 2 ms 384 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB correct
2 Correct 0 ms 384 KB correct
3 Correct 1 ms 384 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 0 ms 384 KB correct
6 Correct 1 ms 384 KB correct
7 Correct 1 ms 384 KB correct
8 Correct 1 ms 512 KB correct
9 Correct 1 ms 384 KB correct
10 Correct 0 ms 384 KB correct
11 Correct 0 ms 384 KB correct
12 Correct 0 ms 384 KB correct
13 Correct 0 ms 384 KB correct
14 Correct 3 ms 384 KB correct
15 Correct 3 ms 384 KB correct
16 Correct 3 ms 360 KB correct
17 Correct 3 ms 384 KB correct
18 Correct 2 ms 384 KB correct
19 Correct 3 ms 384 KB correct
20 Correct 4 ms 384 KB correct
21 Correct 3 ms 384 KB correct
22 Correct 2 ms 384 KB correct
23 Correct 2 ms 384 KB correct
24 Correct 2 ms 384 KB correct
25 Correct 1 ms 384 KB correct
26 Correct 2 ms 384 KB correct
27 Correct 2 ms 384 KB correct
28 Correct 1 ms 384 KB correct
29 Correct 1 ms 384 KB correct
30 Correct 2 ms 384 KB correct
31 Correct 2 ms 384 KB correct
32 Correct 2 ms 384 KB correct
33 Correct 2 ms 384 KB correct
34 Correct 302 ms 1408 KB correct
35 Correct 290 ms 1784 KB correct
36 Correct 201 ms 1408 KB correct
37 Correct 18 ms 384 KB correct
38 Correct 296 ms 1692 KB correct
39 Correct 264 ms 1536 KB correct
40 Correct 197 ms 1408 KB correct
41 Correct 300 ms 1664 KB correct
42 Correct 304 ms 1692 KB correct
43 Correct 155 ms 1272 KB correct
44 Correct 127 ms 896 KB correct
45 Correct 150 ms 1024 KB correct
46 Correct 118 ms 1016 KB correct
47 Correct 51 ms 640 KB correct
48 Correct 7 ms 384 KB correct
49 Correct 17 ms 384 KB correct
50 Correct 51 ms 640 KB correct
51 Correct 153 ms 1024 KB correct
52 Correct 129 ms 1016 KB correct
53 Correct 116 ms 896 KB correct
54 Correct 155 ms 1272 KB correct
55 Correct 135 ms 1172 KB correct
56 Correct 134 ms 1024 KB correct
57 Correct 126 ms 1024 KB correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB correct
2 Correct 1 ms 384 KB correct
3 Runtime error 33 ms 7032 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB correct
2 Correct 0 ms 384 KB correct
3 Correct 1 ms 384 KB correct
4 Correct 0 ms 384 KB correct
5 Correct 0 ms 384 KB correct
6 Correct 1 ms 384 KB correct
7 Correct 1 ms 384 KB correct
8 Correct 1 ms 512 KB correct
9 Correct 1 ms 384 KB correct
10 Correct 0 ms 384 KB correct
11 Correct 0 ms 384 KB correct
12 Correct 0 ms 384 KB correct
13 Correct 0 ms 384 KB correct
14 Correct 3 ms 384 KB correct
15 Correct 3 ms 384 KB correct
16 Correct 3 ms 360 KB correct
17 Correct 3 ms 384 KB correct
18 Correct 2 ms 384 KB correct
19 Correct 3 ms 384 KB correct
20 Correct 4 ms 384 KB correct
21 Correct 3 ms 384 KB correct
22 Correct 2 ms 384 KB correct
23 Correct 2 ms 384 KB correct
24 Correct 2 ms 384 KB correct
25 Correct 1 ms 384 KB correct
26 Correct 2 ms 384 KB correct
27 Correct 2 ms 384 KB correct
28 Correct 1 ms 384 KB correct
29 Correct 1 ms 384 KB correct
30 Correct 2 ms 384 KB correct
31 Correct 2 ms 384 KB correct
32 Correct 2 ms 384 KB correct
33 Correct 2 ms 384 KB correct
34 Correct 302 ms 1408 KB correct
35 Correct 290 ms 1784 KB correct
36 Correct 201 ms 1408 KB correct
37 Correct 18 ms 384 KB correct
38 Correct 296 ms 1692 KB correct
39 Correct 264 ms 1536 KB correct
40 Correct 197 ms 1408 KB correct
41 Correct 300 ms 1664 KB correct
42 Correct 304 ms 1692 KB correct
43 Correct 155 ms 1272 KB correct
44 Correct 127 ms 896 KB correct
45 Correct 150 ms 1024 KB correct
46 Correct 118 ms 1016 KB correct
47 Correct 51 ms 640 KB correct
48 Correct 7 ms 384 KB correct
49 Correct 17 ms 384 KB correct
50 Correct 51 ms 640 KB correct
51 Correct 153 ms 1024 KB correct
52 Correct 129 ms 1016 KB correct
53 Correct 116 ms 896 KB correct
54 Correct 155 ms 1272 KB correct
55 Correct 135 ms 1172 KB correct
56 Correct 134 ms 1024 KB correct
57 Correct 126 ms 1024 KB correct
58 Correct 1 ms 384 KB correct
59 Correct 1 ms 384 KB correct
60 Runtime error 33 ms 7032 KB Execution killed with signal 11
61 Halted 0 ms 0 KB -