oj.uz

Submission #698624

# Submission time Handle Problem Language Result Execution time Memory
698624 2023-02-14T05:38:56 Z cig32 Newspapers (CEOI21_newspapers) C++17
0 / 100
 472 ms 524288 KB 
#include "bits/stdc++.h"
using namespace std;
#define int long long
const int MAXN = 3e5 + 10;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
  int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
  if(p==0) return 1 % MOD;
  int r = bm(b, p >> 1);
  if(p&1) return (((r*r) % MOD) * b) % MOD;
  return (r*r) % MOD;
}
int inv(int b) { 
  return bm(b, MOD-2);
}
int fastlog(int x) {
  return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }

vector<int> adj[1029];
int state[(1 << 20)];
bool vis[(1 << 20)];
pair<int, int> pv[(1 << 20)];
vector<pair<int, int> > trans[(1 << 20)];
int msk[21];
void solve(int tc) {
  int n, m; cin >> n >> m;
  for(int i=0; i<(1<<n)-1; i++) state[i] = 1e9;
  state[(1<<n)-1] = 0;
  for(int i=0; i<m; i++) {
    int u, v; cin >> u >> v;
    u--, v--;
    msk[u] |= (1 << v);
    msk[v] |= (1 << u);
  }

  for(int i=0; i<(1<<n); i++) {
    int nxt= 0;
    for(int j=0; j<n; j++) {
      if(i & (1<<j)) {
        nxt |= msk[j];
      }
    }
    for(int j=0; j<n; j++) {
      int rl = nxt | (1<<j);
      rl ^= (1<<j);
      trans[i].push_back({rl, j});
    }
  }
  queue<int> q;
  q.push((1<<n) - 1);
  while(q.size()) {
    int f=q.front(); q.pop();
    if(!vis[f]) {
      vis[f] = 1;
      for(pair<int, int> x: trans[f]) {
        if(!vis[x.first] && state[x.first]>state[f] + 1) {
          state[x.first] = state[f] + 1; 
          pv[x.first] = {f, x.second};
          q.push(x.first);
        }
      }
    }
  }
  cout << (state[0] == 1e9 ? "NO\n" : "YES\n");
  if(state[0] == 1e9) return;
  int cur = 0;
  stack<int> stk;
  while(cur != (1<<n) - 1) {
    stk.push(pv[cur].second + 1);
    cur = pv[cur].first;
  }
  cout << stk.size() << "\n";
  while(stk.size()) {
    int ss=stk.top(); stk.pop();
    cout << ss;
    if(stk.size()) cout << " ";
    else cout << "\n";
  }
  

}
int32_t main() {
  ios::sync_with_stdio(0); cin.tie(0);
  int t = 1; //cin >> t;
  for(int i=1; i<=t; i++) solve(i);
}

Subtask #1
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24916 KB Output is correct
2 Correct 12 ms 24996 KB Output is correct
3 Correct 15 ms 24916 KB Output is correct
4 Correct 13 ms 24916 KB Output is correct
5 Correct 12 ms 24916 KB Output is correct
6 Correct 12 ms 24900 KB Output is correct
7 Correct 12 ms 24912 KB Output is correct
8 Correct 14 ms 24916 KB Output is correct
9 Correct 14 ms 25172 KB Output is correct
10 Correct 13 ms 25112 KB Output is correct
11 Correct 13 ms 24916 KB Output is correct
12 Correct 13 ms 24976 KB Output is correct
13 Correct 13 ms 25020 KB Output is correct
14 Correct 13 ms 24916 KB Output is correct
15 Correct 13 ms 25172 KB Output is correct
16 Correct 13 ms 25172 KB Output is correct
17 Correct 14 ms 25172 KB Output is correct
18 Correct 13 ms 25224 KB Output is correct
19 Correct 13 ms 25568 KB Output is correct
20 Correct 14 ms 25576 KB Output is correct
21 Correct 13 ms 25556 KB Output is correct
22 Correct 13 ms 25528 KB Output is correct
23 Correct 14 ms 26132 KB Output is correct
24 Correct 16 ms 26120 KB Output is correct
25 Correct 15 ms 26132 KB Output is correct
26 Correct 17 ms 26068 KB Output is correct
27 Correct 14 ms 27348 KB Output is correct
28 Correct 15 ms 27284 KB Output is correct
29 Correct 15 ms 27288 KB Output is correct
30 Correct 16 ms 27384 KB Output is correct
31 Correct 18 ms 29652 KB Output is correct
32 Correct 18 ms 29692 KB Output is correct
33 Correct 19 ms 29652 KB Output is correct
34 Correct 18 ms 29652 KB Output is correct
35 Correct 23 ms 34504 KB Output is correct
36 Correct 23 ms 34456 KB Output is correct
37 Correct 24 ms 34404 KB Output is correct
38 Correct 29 ms 34516 KB Output is correct
39 Correct 34 ms 43788 KB Output is correct
40 Correct 45 ms 43900 KB Output is correct
41 Correct 34 ms 43464 KB Output is correct
42 Correct 35 ms 43868 KB Output is correct
43 Correct 77 ms 94880 KB Output is correct
44 Correct 77 ms 94884 KB Output is correct
45 Correct 78 ms 94712 KB Output is correct
46 Correct 75 ms 94696 KB Output is correct
47 Correct 150 ms 164160 KB Output is correct
48 Correct 141 ms 164740 KB Output is correct
49 Correct 143 ms 163888 KB Output is correct
50 Correct 143 ms 163788 KB Output is correct
51 Correct 276 ms 303052 KB Output is correct
52 Correct 275 ms 302120 KB Output is correct
53 Correct 272 ms 301864 KB Output is correct
54 Correct 288 ms 302332 KB Output is correct
55 Runtime error 472 ms 524288 KB Execution killed with signal 9
56 Halted 0 ms 0 KB -

Subtask #2
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 24916 KB Output is correct
2 Correct 13 ms 24952 KB Output is correct
3 Correct 12 ms 24908 KB Output is correct
4 Correct 13 ms 24916 KB Output is correct
5 Correct 13 ms 24916 KB Output is correct
6 Correct 15 ms 25004 KB Output is correct
7 Correct 14 ms 24916 KB Output is correct
8 Correct 13 ms 24952 KB Output is correct
9 Correct 13 ms 25084 KB Output is correct
10 Correct 13 ms 25172 KB Output is correct
11 Runtime error 32 ms 51472 KB Execution killed with signal 11
12 Halted 0 ms 0 KB -

Subtask #3
0.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24916 KB Output is correct
2 Correct 12 ms 24996 KB Output is correct
3 Correct 15 ms 24916 KB Output is correct
4 Correct 13 ms 24916 KB Output is correct
5 Correct 12 ms 24916 KB Output is correct
6 Correct 12 ms 24900 KB Output is correct
7 Correct 12 ms 24912 KB Output is correct
8 Correct 14 ms 24916 KB Output is correct
9 Correct 14 ms 25172 KB Output is correct
10 Correct 13 ms 25112 KB Output is correct
11 Correct 13 ms 24916 KB Output is correct
12 Correct 13 ms 24976 KB Output is correct
13 Correct 13 ms 25020 KB Output is correct
14 Correct 13 ms 24916 KB Output is correct
15 Correct 13 ms 25172 KB Output is correct
16 Correct 13 ms 25172 KB Output is correct
17 Correct 14 ms 25172 KB Output is correct
18 Correct 13 ms 25224 KB Output is correct
19 Correct 13 ms 25568 KB Output is correct
20 Correct 14 ms 25576 KB Output is correct
21 Correct 13 ms 25556 KB Output is correct
22 Correct 13 ms 25528 KB Output is correct
23 Correct 14 ms 26132 KB Output is correct
24 Correct 16 ms 26120 KB Output is correct
25 Correct 15 ms 26132 KB Output is correct
26 Correct 17 ms 26068 KB Output is correct
27 Correct 14 ms 27348 KB Output is correct
28 Correct 15 ms 27284 KB Output is correct
29 Correct 15 ms 27288 KB Output is correct
30 Correct 16 ms 27384 KB Output is correct
31 Correct 18 ms 29652 KB Output is correct
32 Correct 18 ms 29692 KB Output is correct
33 Correct 19 ms 29652 KB Output is correct
34 Correct 18 ms 29652 KB Output is correct
35 Correct 23 ms 34504 KB Output is correct
36 Correct 23 ms 34456 KB Output is correct
37 Correct 24 ms 34404 KB Output is correct
38 Correct 29 ms 34516 KB Output is correct
39 Correct 34 ms 43788 KB Output is correct
40 Correct 45 ms 43900 KB Output is correct
41 Correct 34 ms 43464 KB Output is correct
42 Correct 35 ms 43868 KB Output is correct
43 Correct 77 ms 94880 KB Output is correct
44 Correct 77 ms 94884 KB Output is correct
45 Correct 78 ms 94712 KB Output is correct
46 Correct 75 ms 94696 KB Output is correct
47 Correct 150 ms 164160 KB Output is correct
48 Correct 141 ms 164740 KB Output is correct
49 Correct 143 ms 163888 KB Output is correct
50 Correct 143 ms 163788 KB Output is correct
51 Correct 276 ms 303052 KB Output is correct
52 Correct 275 ms 302120 KB Output is correct
53 Correct 272 ms 301864 KB Output is correct
54 Correct 288 ms 302332 KB Output is correct
55 Runtime error 472 ms 524288 KB Execution killed with signal 9
56 Halted 0 ms 0 KB -