oj.uz

Submission #645208

# Submission time Handle Problem Language Result Execution time Memory
645208 2022-09-26T12:35:47 Z dattranxxx Split the Attractions (IOI19_split) C++17
100 / 100
 127 ms 26708 KB 
#include "split.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define fi first
#define se second
const int N = 1e5 + 5;
vector<int> adj[N], child[N];
int n, m; pair<int, int> x[3];

int low[N], in[N], siz[N], t = 0;
vector<int> ans;
int dfs1(int u, pair<int, int>& x) {
  ans[u] = x.se; x.fi--;
  if (x.fi == 0) return 1;
  for (int v : child[u]) 
    if (dfs1(v, x)) return 1;
  return 0;
}
int dfs2(int u, pair<int, int>& y) {
  ans[u] = y.se; y.fi--;
  if (y.fi == 0) return 1;
  for (int v : adj[u]) if (ans[v] == x[2].se)
    if (dfs2(v, y)) return 1;
  return 0;
}
int dfs(int u, int p = -1) {
  int flag = 1;
  in[u] = low[u] = ++t, siz[u] = 1;
  for (int v : adj[u]) if (v != p) {
    if (in[v]) low[u] = min(low[u], in[v]); // back-edge
    else {
      child[u].emplace_back(v);
      if (dfs(v, u)) return 1;
      low[u] = min(low[u], low[v]);
      siz[u] += siz[v];
      flag &= siz[v] < x[0].fi;
    }
  }
  flag &= siz[u] >= x[0].fi;
  if (!flag) 
    return 0;
  int P1 = siz[u], P2 = n - siz[u];
  for (int v : child[u]) if (low[v] < in[u] && P2 < x[0].fi)
    P1 -= siz[v], P2 += siz[v];
  if (P2 < x[0].fi) 
    return 0;
  if (P1 > P2) swap(x[0], x[1]);
  dfs1(u, x[0]); dfs2(p, x[1]);
  return 1;
}

vector<int> find_split(int _n, int a, int b, int c, vector<int> p, vector<int> q) {
  n = _n; m = p.size();
  x[0] = {a, 1}, x[1] = {b, 2}, x[2] = {c, 3};
  sort(x, x + 3);
  for (int i = 0, u, v; i < m; ++i)
    u = p[i], v = q[i],
    adj[u].emplace_back(v),
    adj[v].emplace_back(u);
  ans = vector<int>(n, x[2].se);
  if (dfs(0)) 
    return ans;
  return vector<int>(n, 0);
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB ok, correct split
2 Correct 3 ms 4948 KB ok, correct split
3 Correct 4 ms 4948 KB ok, correct split
4 Correct 4 ms 4948 KB ok, correct split
5 Correct 3 ms 4948 KB ok, correct split
6 Correct 3 ms 5000 KB ok, correct split
7 Correct 75 ms 25960 KB ok, correct split
8 Correct 60 ms 17360 KB ok, correct split
9 Correct 66 ms 20204 KB ok, correct split
10 Correct 75 ms 26684 KB ok, correct split
11 Correct 83 ms 26708 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB ok, correct split
2 Correct 3 ms 4948 KB ok, correct split
3 Correct 3 ms 4948 KB ok, correct split
4 Correct 71 ms 12620 KB ok, correct split
5 Correct 48 ms 11616 KB ok, correct split
6 Correct 70 ms 26708 KB ok, correct split
7 Correct 91 ms 23208 KB ok, correct split
8 Correct 71 ms 13948 KB ok, correct split
9 Correct 49 ms 12856 KB ok, correct split
10 Correct 42 ms 11656 KB ok, correct split
11 Correct 42 ms 11648 KB ok, correct split
12 Correct 41 ms 11844 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB ok, correct split
2 Correct 84 ms 14216 KB ok, correct split
3 Correct 19 ms 8148 KB ok, correct split
4 Correct 3 ms 4948 KB ok, correct split
5 Correct 81 ms 17896 KB ok, correct split
6 Correct 77 ms 16840 KB ok, correct split
7 Correct 71 ms 18188 KB ok, correct split
8 Correct 83 ms 20600 KB ok, correct split
9 Correct 93 ms 18648 KB ok, correct split
10 Correct 20 ms 8080 KB ok, no valid answer
11 Correct 31 ms 9736 KB ok, no valid answer
12 Correct 52 ms 13768 KB ok, no valid answer
13 Correct 63 ms 14244 KB ok, no valid answer
14 Correct 50 ms 13512 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB ok, correct split
2 Correct 3 ms 5008 KB ok, no valid answer
3 Correct 3 ms 4948 KB ok, correct split
4 Correct 3 ms 5008 KB ok, correct split
5 Correct 3 ms 5004 KB ok, correct split
6 Correct 3 ms 4948 KB ok, correct split
7 Correct 3 ms 4948 KB ok, correct split
8 Correct 3 ms 5008 KB ok, correct split
9 Correct 6 ms 5268 KB ok, correct split
10 Correct 4 ms 5204 KB ok, correct split
11 Correct 4 ms 5000 KB ok, correct split
12 Correct 6 ms 5204 KB ok, correct split
13 Correct 4 ms 4948 KB ok, correct split
14 Correct 3 ms 4948 KB ok, correct split
15 Correct 3 ms 5000 KB ok, correct split
16 Correct 3 ms 5004 KB ok, correct split
17 Correct 3 ms 4948 KB ok, correct split
18 Correct 3 ms 5000 KB ok, correct split
19 Correct 3 ms 4948 KB ok, correct split
20 Correct 3 ms 5148 KB ok, correct split
21 Correct 4 ms 5332 KB ok, correct split
22 Correct 4 ms 5204 KB ok, correct split
23 Correct 4 ms 5400 KB ok, correct split
24 Correct 4 ms 5332 KB ok, correct split
25 Correct 5 ms 5204 KB ok, correct split
26 Correct 4 ms 5204 KB ok, correct split
27 Correct 4 ms 5204 KB ok, correct split
28 Correct 4 ms 5272 KB ok, correct split
29 Correct 3 ms 4948 KB ok, correct split
30 Correct 4 ms 5272 KB ok, correct split
31 Correct 3 ms 5076 KB ok, correct split
32 Correct 3 ms 4948 KB ok, correct split
33 Correct 3 ms 5008 KB ok, correct split
34 Correct 4 ms 5188 KB ok, correct split
35 Correct 4 ms 5280 KB ok, correct split
36 Correct 4 ms 5184 KB ok, correct split
37 Correct 5 ms 5340 KB ok, correct split
38 Correct 7 ms 5348 KB ok, correct split
39 Correct 5 ms 5204 KB ok, correct split
40 Correct 5 ms 5204 KB ok, correct split
41 Correct 4 ms 5076 KB ok, correct split
42 Correct 4 ms 5172 KB ok, correct split
43 Correct 5 ms 5272 KB ok, correct split
44 Correct 4 ms 5272 KB ok, correct split
45 Correct 5 ms 5332 KB ok, correct split
46 Correct 4 ms 5272 KB ok, correct split
47 Correct 4 ms 5332 KB ok, no valid answer
48 Correct 4 ms 5176 KB ok, correct split
49 Correct 4 ms 5404 KB ok, correct split
50 Correct 3 ms 4948 KB ok, no valid answer
51 Correct 3 ms 4948 KB ok, no valid answer
52 Correct 4 ms 5144 KB ok, no valid answer
53 Correct 4 ms 5332 KB ok, no valid answer
54 Correct 4 ms 5172 KB ok, no valid answer
55 Correct 4 ms 5268 KB ok, no valid answer
56 Correct 4 ms 5272 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB ok, correct split
2 Correct 3 ms 4948 KB ok, correct split
3 Correct 4 ms 4948 KB ok, correct split
4 Correct 4 ms 4948 KB ok, correct split
5 Correct 3 ms 4948 KB ok, correct split
6 Correct 3 ms 5000 KB ok, correct split
7 Correct 75 ms 25960 KB ok, correct split
8 Correct 60 ms 17360 KB ok, correct split
9 Correct 66 ms 20204 KB ok, correct split
10 Correct 75 ms 26684 KB ok, correct split
11 Correct 83 ms 26708 KB ok, correct split
12 Correct 3 ms 4948 KB ok, correct split
13 Correct 3 ms 4948 KB ok, correct split
14 Correct 3 ms 4948 KB ok, correct split
15 Correct 71 ms 12620 KB ok, correct split
16 Correct 48 ms 11616 KB ok, correct split
17 Correct 70 ms 26708 KB ok, correct split
18 Correct 91 ms 23208 KB ok, correct split
19 Correct 71 ms 13948 KB ok, correct split
20 Correct 49 ms 12856 KB ok, correct split
21 Correct 42 ms 11656 KB ok, correct split
22 Correct 42 ms 11648 KB ok, correct split
23 Correct 41 ms 11844 KB ok, correct split
24 Correct 3 ms 4948 KB ok, correct split
25 Correct 84 ms 14216 KB ok, correct split
26 Correct 19 ms 8148 KB ok, correct split
27 Correct 3 ms 4948 KB ok, correct split
28 Correct 81 ms 17896 KB ok, correct split
29 Correct 77 ms 16840 KB ok, correct split
30 Correct 71 ms 18188 KB ok, correct split
31 Correct 83 ms 20600 KB ok, correct split
32 Correct 93 ms 18648 KB ok, correct split
33 Correct 20 ms 8080 KB ok, no valid answer
34 Correct 31 ms 9736 KB ok, no valid answer
35 Correct 52 ms 13768 KB ok, no valid answer
36 Correct 63 ms 14244 KB ok, no valid answer
37 Correct 50 ms 13512 KB ok, no valid answer
38 Correct 3 ms 4948 KB ok, correct split
39 Correct 3 ms 5008 KB ok, no valid answer
40 Correct 3 ms 4948 KB ok, correct split
41 Correct 3 ms 5008 KB ok, correct split
42 Correct 3 ms 5004 KB ok, correct split
43 Correct 3 ms 4948 KB ok, correct split
44 Correct 3 ms 4948 KB ok, correct split
45 Correct 3 ms 5008 KB ok, correct split
46 Correct 6 ms 5268 KB ok, correct split
47 Correct 4 ms 5204 KB ok, correct split
48 Correct 4 ms 5000 KB ok, correct split
49 Correct 6 ms 5204 KB ok, correct split
50 Correct 4 ms 4948 KB ok, correct split
51 Correct 3 ms 4948 KB ok, correct split
52 Correct 3 ms 5000 KB ok, correct split
53 Correct 3 ms 5004 KB ok, correct split
54 Correct 3 ms 4948 KB ok, correct split
55 Correct 3 ms 5000 KB ok, correct split
56 Correct 3 ms 4948 KB ok, correct split
57 Correct 3 ms 5148 KB ok, correct split
58 Correct 4 ms 5332 KB ok, correct split
59 Correct 4 ms 5204 KB ok, correct split
60 Correct 4 ms 5400 KB ok, correct split
61 Correct 4 ms 5332 KB ok, correct split
62 Correct 5 ms 5204 KB ok, correct split
63 Correct 4 ms 5204 KB ok, correct split
64 Correct 4 ms 5204 KB ok, correct split
65 Correct 4 ms 5272 KB ok, correct split
66 Correct 3 ms 4948 KB ok, correct split
67 Correct 4 ms 5272 KB ok, correct split
68 Correct 3 ms 5076 KB ok, correct split
69 Correct 3 ms 4948 KB ok, correct split
70 Correct 3 ms 5008 KB ok, correct split
71 Correct 4 ms 5188 KB ok, correct split
72 Correct 4 ms 5280 KB ok, correct split
73 Correct 4 ms 5184 KB ok, correct split
74 Correct 5 ms 5340 KB ok, correct split
75 Correct 7 ms 5348 KB ok, correct split
76 Correct 5 ms 5204 KB ok, correct split
77 Correct 5 ms 5204 KB ok, correct split
78 Correct 4 ms 5076 KB ok, correct split
79 Correct 4 ms 5172 KB ok, correct split
80 Correct 5 ms 5272 KB ok, correct split
81 Correct 4 ms 5272 KB ok, correct split
82 Correct 5 ms 5332 KB ok, correct split
83 Correct 4 ms 5272 KB ok, correct split
84 Correct 4 ms 5332 KB ok, no valid answer
85 Correct 4 ms 5176 KB ok, correct split
86 Correct 4 ms 5404 KB ok, correct split
87 Correct 3 ms 4948 KB ok, no valid answer
88 Correct 3 ms 4948 KB ok, no valid answer
89 Correct 4 ms 5144 KB ok, no valid answer
90 Correct 4 ms 5332 KB ok, no valid answer
91 Correct 4 ms 5172 KB ok, no valid answer
92 Correct 4 ms 5268 KB ok, no valid answer
93 Correct 4 ms 5272 KB ok, no valid answer
94 Correct 73 ms 18740 KB ok, correct split
95 Correct 127 ms 25128 KB ok, correct split
96 Correct 98 ms 23088 KB ok, correct split
97 Correct 19 ms 7764 KB ok, correct split
98 Correct 22 ms 8276 KB ok, correct split
99 Correct 38 ms 11660 KB ok, correct split
100 Correct 84 ms 16924 KB ok, correct split
101 Correct 67 ms 15692 KB ok, correct split
102 Correct 64 ms 14864 KB ok, correct split
103 Correct 70 ms 13996 KB ok, correct split
104 Correct 81 ms 16656 KB ok, correct split
105 Correct 42 ms 10888 KB ok, correct split
106 Correct 78 ms 16652 KB ok, correct split
107 Correct 75 ms 14564 KB ok, correct split
108 Correct 77 ms 14484 KB ok, correct split
109 Correct 103 ms 18108 KB ok, correct split
110 Correct 99 ms 19012 KB ok, correct split
111 Correct 108 ms 19140 KB ok, correct split
112 Correct 97 ms 17696 KB ok, correct split
113 Correct 104 ms 17688 KB ok, correct split
114 Correct 11 ms 6740 KB ok, correct split
115 Correct 10 ms 6356 KB ok, correct split
116 Correct 91 ms 19028 KB ok, correct split
117 Correct 92 ms 18908 KB ok, correct split
118 Correct 77 ms 15300 KB ok, correct split
119 Correct 51 ms 12944 KB ok, correct split
120 Correct 77 ms 20228 KB ok, correct split
121 Correct 71 ms 14508 KB ok, no valid answer
122 Correct 82 ms 14400 KB ok, no valid answer
123 Correct 122 ms 19148 KB ok, no valid answer
124 Correct 126 ms 18924 KB ok, no valid answer
125 Correct 86 ms 15400 KB ok, no valid answer
126 Correct 44 ms 12804 KB ok, no valid answer
127 Correct 78 ms 16324 KB ok, no valid answer