oj.uz

답안 #218155

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
218155 2020-04-01T10:42:46 Z extraterrestrial 항공 노선도 (JOI18_airline) C++14
37 / 100
 398 ms 7416 KB 
#include "Alicelib.h"
#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()

void Alice(int N, int M, int A[], int B[]) {
	InitG(2 * N + 2, M + (N + 2) * (N + 1) / 2 + N * (N + 1) / 2);
  int ptr = 0;
  for (int i = 0; i < M; i++) {
    MakeG(ptr++, A[i], B[i]);
  }
  for (int i = N + 1; i <= 2 * N + 2; i++) {
    for (int j = i + 1; j <= 2 * N + 2; j++) {
      MakeG(ptr++, i - 1, j - 1);
    }
  }
  for (int i = 0; i < N; i++) {
    for (int j = N; j <= N + i; j++) {
      MakeG(ptr++, i, j);
    }
  }
}


#include "Boblib.h"
#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()

void dfs(int v, vector<bool> &used, vector<int> &comp, vector<vector<int>> &g) {
  comp.pb(v);
  used[v] = true;
  for (auto u : g[v]) {
    if (!used[u]) {
      dfs(u, used, comp, g);
    }
  }
}

vector<int> get_clique(vector<int> &have, vector<vector<bool>> &ok) {
  vector<int> rez;
  for (int mask = 1; mask < (1 << (SZ(have))); mask++) {
    bool can = true;
    for (int i = 0; i < SZ(have); i++) {
      if ((mask >> i) & 1) {
        int v = have[i];
        for (int j = i + 1; j < SZ(have); j++) {
          if ((mask >> j) & 1) {
            int u = have[j];
            if (!ok[u][v]) {
              can = false;
            }
          }
        }
      }
    }
    if (can && __builtin_popcount(mask) > SZ(rez)) {
      rez = {};
      for (int i = 0; i < SZ(have); i++) {
        if ((mask >> i) & 1) {
          rez.pb(have[i]);
        }
      }
    }
  }  
  return rez;
}

const int N = 80;
bitset<N> a[N];
int n, need;
vector<int> ans;
 
mt19937 rnd(228);

void rec(bitset<N> can_take, bitset<N> take) {
  if (SZ(ans) == need) {
    return;
  }
  if (!can_take.count()) {
    if (take.count() > SZ(ans)) {
      ans = {};
      for (int i = 0; i < n; i++) {
        if (take[i]) {
          ans.pb(i);
        }
      }
    }
    return;
  }
  if (can_take.count() + take.count() <= SZ(ans)) {
    return;
  }
  pair<int, int> v = {-1, -1};
  for (int i = 0; i < n; i++) {
    if (can_take[i]) {
      int x = (a[i] & can_take).count();
      if (x < 2) {
        take[i] = 1;
        can_take[i] = 0;
        can_take ^= (can_take & a[i]);
        rec(can_take, take);
        return;
      }
      v = max(v, make_pair(x, i));
    }
  }
  can_take[v.S] = 0;
  take[v.S] = 1;
  rec(can_take ^ (can_take & a[v.S]), take);
  take[v.S] = 0;
  rec(can_take, take);
  take[v.S] = 0;
  can_take[v.S] = 1;
}

void Bob(int V, int U, int C[], int D[]) {
  vector<bool> used(V);
  vector<vector<int>> g(V);
  vector<vector<bool>> ok(V, vector<bool>(V));
  for (int i = 0; i < U; i++) {
    g[C[i]].pb(D[i]);
    g[D[i]].pb(C[i]);
    ok[C[i]][D[i]] = ok[D[i]][C[i]] = true;
  }
  n = V;
  need = V / 2 + 1;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (i != j) {
        if (ok[i][j]) {
          a[i][j] = 0;
        }
        else {
          a[i][j] = 1;
        }
      }
    }
  }  
  bitset<N> can_take, take;
  for (int i = 0; i < n; i++) {
    can_take[i] = 1;
  }
  rec(can_take, take);
  vector<int> cl = ans;
  InitMap(V - SZ(cl), U - SZ(cl) * (SZ(cl) - 1) / 2 - (V - SZ(cl)) * (V - SZ(cl) + 1) / 2);
  vector<bool> in_clique(V);
  for (auto it : cl) {
    in_clique[it] = true;
  }
  vector<int> id(V + 1);
  for (int i = 0; i < V; i++) {
    if (!in_clique[i]) {
      int cnt = 0;
      for (auto u : g[i]) {
          if (in_clique[u]) {
          cnt++;
        }
      }
      id[i] = cnt;
    }
  }
  for (int v = 0; v < V; v++) {
    for (int u : g[v]) {
      if (id[v] && id[u] && id[v] < id[u]) {
        MakeMap(id[v] - 1, id[u] - 1);
      }
    }
  }
}

Compilation message

Bob.cpp: In function 'void rec(std::bitset<80>, std::bitset<80>)':
Bob.cpp:63:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (take.count() > SZ(ans)) {
                      ^
Bob.cpp:73:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (can_take.count() + take.count() <= SZ(ans)) {
                                       ^

Subtask #1
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 6912 KB Output is correct
2 Correct 13 ms 6912 KB Output is correct
3 Correct 13 ms 6912 KB Output is correct
4 Correct 13 ms 6912 KB Output is correct
5 Correct 13 ms 6912 KB Output is correct
6 Correct 13 ms 6912 KB Output is correct
7 Correct 13 ms 6912 KB Output is correct
8 Correct 13 ms 6912 KB Output is correct
9 Correct 13 ms 6912 KB Output is correct
10 Correct 13 ms 6656 KB Output is correct
11 Correct 13 ms 6912 KB Output is correct
12 Correct 14 ms 6912 KB Output is correct
13 Correct 13 ms 6912 KB Output is correct
14 Correct 13 ms 6912 KB Output is correct
15 Correct 13 ms 6912 KB Output is correct
16 Correct 13 ms 6912 KB Output is correct
17 Correct 13 ms 6912 KB Output is correct
18 Correct 13 ms 6912 KB Output is correct
19 Correct 13 ms 6912 KB Output is correct
20 Correct 13 ms 6912 KB Output is correct
21 Correct 13 ms 6912 KB Output is correct
22 Correct 13 ms 6912 KB Output is correct
23 Correct 13 ms 6912 KB Output is correct
24 Correct 14 ms 6912 KB Output is correct
25 Correct 17 ms 6912 KB Output is correct
26 Correct 13 ms 6912 KB Output is correct
27 Correct 13 ms 6912 KB Output is correct
28 Correct 13 ms 6912 KB Output is correct
29 Correct 13 ms 6912 KB Output is correct
30 Correct 13 ms 6912 KB Output is correct
31 Correct 13 ms 6912 KB Output is correct
32 Correct 13 ms 6912 KB Output is correct
33 Correct 13 ms 6912 KB Output is correct
34 Correct 13 ms 6656 KB Output is correct
35 Correct 13 ms 6912 KB Output is correct
36 Correct 13 ms 6912 KB Output is correct
37 Correct 13 ms 6912 KB Output is correct
38 Correct 13 ms 6720 KB Output is correct
39 Correct 13 ms 6912 KB Output is correct
40 Correct 13 ms 6912 KB Output is correct
41 Correct 13 ms 6912 KB Output is correct
42 Correct 13 ms 6912 KB Output is correct
43 Correct 13 ms 6912 KB Output is correct
44 Correct 13 ms 6656 KB Output is correct
45 Correct 14 ms 6912 KB Output is correct
46 Correct 13 ms 6912 KB Output is correct
47 Correct 13 ms 6912 KB Output is correct
48 Correct 14 ms 6912 KB Output is correct
49 Correct 13 ms 6912 KB Output is correct
50 Correct 13 ms 6912 KB Output is correct
51 Correct 13 ms 6912 KB Output is correct
52 Correct 13 ms 6912 KB Output is correct
53 Correct 13 ms 6912 KB Output is correct
54 Correct 13 ms 6912 KB Output is correct
55 Correct 14 ms 6912 KB Output is correct
56 Correct 13 ms 6912 KB Output is correct
57 Correct 16 ms 6912 KB Output is correct
58 Correct 13 ms 6912 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 6912 KB Output is correct
2 Correct 13 ms 6912 KB Output is correct
3 Correct 13 ms 6912 KB Output is correct
4 Correct 13 ms 6912 KB Output is correct
5 Correct 13 ms 6912 KB Output is correct
6 Correct 13 ms 6912 KB Output is correct
7 Correct 13 ms 6912 KB Output is correct
8 Correct 13 ms 6912 KB Output is correct
9 Correct 13 ms 6912 KB Output is correct
10 Correct 13 ms 6656 KB Output is correct
11 Correct 13 ms 6912 KB Output is correct
12 Correct 14 ms 6912 KB Output is correct
13 Correct 13 ms 6912 KB Output is correct
14 Correct 13 ms 6912 KB Output is correct
15 Correct 13 ms 6912 KB Output is correct
16 Correct 13 ms 6912 KB Output is correct
17 Correct 13 ms 6912 KB Output is correct
18 Correct 13 ms 6912 KB Output is correct
19 Correct 13 ms 6912 KB Output is correct
20 Correct 13 ms 6912 KB Output is correct
21 Correct 13 ms 6912 KB Output is correct
22 Correct 13 ms 6912 KB Output is correct
23 Correct 13 ms 6912 KB Output is correct
24 Correct 14 ms 6912 KB Output is correct
25 Correct 17 ms 6912 KB Output is correct
26 Correct 13 ms 6912 KB Output is correct
27 Correct 13 ms 6912 KB Output is correct
28 Correct 13 ms 6912 KB Output is correct
29 Correct 13 ms 6912 KB Output is correct
30 Correct 13 ms 6912 KB Output is correct
31 Correct 13 ms 6912 KB Output is correct
32 Correct 13 ms 6912 KB Output is correct
33 Correct 13 ms 6912 KB Output is correct
34 Correct 13 ms 6656 KB Output is correct
35 Correct 13 ms 6912 KB Output is correct
36 Correct 13 ms 6912 KB Output is correct
37 Correct 13 ms 6912 KB Output is correct
38 Correct 13 ms 6720 KB Output is correct
39 Correct 13 ms 6912 KB Output is correct
40 Correct 13 ms 6912 KB Output is correct
41 Correct 13 ms 6912 KB Output is correct
42 Correct 13 ms 6912 KB Output is correct
43 Correct 13 ms 6912 KB Output is correct
44 Correct 13 ms 6656 KB Output is correct
45 Correct 14 ms 6912 KB Output is correct
46 Correct 13 ms 6912 KB Output is correct
47 Correct 13 ms 6912 KB Output is correct
48 Correct 14 ms 6912 KB Output is correct
49 Correct 13 ms 6912 KB Output is correct
50 Correct 13 ms 6912 KB Output is correct
51 Correct 13 ms 6912 KB Output is correct
52 Correct 13 ms 6912 KB Output is correct
53 Correct 13 ms 6912 KB Output is correct
54 Correct 13 ms 6912 KB Output is correct
55 Correct 14 ms 6912 KB Output is correct
56 Correct 13 ms 6912 KB Output is correct
57 Correct 16 ms 6912 KB Output is correct
58 Correct 13 ms 6912 KB Output is correct
59 Correct 14 ms 6912 KB Output is correct
60 Correct 14 ms 6912 KB Output is correct
61 Correct 14 ms 6912 KB Output is correct
62 Correct 14 ms 6912 KB Output is correct
63 Correct 14 ms 6912 KB Output is correct
64 Correct 15 ms 6912 KB Output is correct
65 Correct 15 ms 6912 KB Output is correct
66 Correct 14 ms 6912 KB Output is correct
67 Correct 14 ms 6912 KB Output is correct
68 Correct 14 ms 6912 KB Output is correct
69 Correct 14 ms 6912 KB Output is correct
70 Correct 15 ms 6912 KB Output is correct
71 Correct 17 ms 6912 KB Output is correct
72 Correct 14 ms 6912 KB Output is correct
73 Correct 14 ms 6912 KB Output is correct
74 Correct 14 ms 6912 KB Output is correct
75 Correct 17 ms 6912 KB Output is correct
76 Correct 14 ms 6912 KB Output is correct
77 Correct 15 ms 7168 KB Output is correct
78 Correct 15 ms 6912 KB Output is correct
79 Correct 14 ms 6912 KB Output is correct
80 Correct 14 ms 6912 KB Output is correct
81 Correct 14 ms 6912 KB Output is correct
82 Correct 16 ms 6912 KB Output is correct
83 Correct 13 ms 6912 KB Output is correct
84 Correct 14 ms 6912 KB Output is correct
85 Correct 14 ms 6912 KB Output is correct
86 Correct 15 ms 6912 KB Output is correct
87 Correct 13 ms 6912 KB Output is correct
88 Correct 15 ms 6912 KB Output is correct
89 Correct 14 ms 6912 KB Output is correct
90 Correct 15 ms 6912 KB Output is correct
91 Correct 15 ms 6912 KB Output is correct
92 Correct 15 ms 6912 KB Output is correct
93 Correct 14 ms 6912 KB Output is correct
94 Correct 15 ms 6912 KB Output is correct
95 Correct 15 ms 6912 KB Output is correct
96 Correct 14 ms 6912 KB Output is correct
97 Correct 15 ms 6912 KB Output is correct
98 Correct 18 ms 6912 KB Output is correct
99 Correct 14 ms 6912 KB Output is correct
100 Correct 14 ms 6912 KB Output is correct
101 Correct 14 ms 6912 KB Output is correct
102 Correct 15 ms 6912 KB Output is correct
103 Correct 17 ms 6912 KB Output is correct
104 Correct 14 ms 6912 KB Output is correct
105 Correct 14 ms 6912 KB Output is correct
106 Correct 14 ms 6912 KB Output is correct
107 Correct 14 ms 6912 KB Output is correct
108 Correct 15 ms 6912 KB Output is correct
109 Correct 14 ms 6912 KB Output is correct
110 Correct 13 ms 6912 KB Output is correct
111 Correct 13 ms 6912 KB Output is correct
112 Correct 13 ms 6912 KB Output is correct
113 Correct 13 ms 6912 KB Output is correct
114 Correct 13 ms 6912 KB Output is correct
115 Correct 14 ms 6912 KB Output is correct
116 Correct 13 ms 6912 KB Output is correct
117 Correct 14 ms 6912 KB Output is correct
118 Correct 16 ms 6912 KB Output is correct

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 398 ms 7416 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -