oj.uz

Submission #582149

# Submission time Handle Problem Language Result Execution time Memory
582149 2022-06-23T12:39:41 Z MohamedFaresNebili Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 294 ms 22104 KB 
#include <bits/stdc++.h>
/// #include "supertrees.h"
#include <ext/pb_ds/assoc_container.hpp>
 
        using namespace std;
        using namespace __gnu_pbds;
 
        using ll = long long;
        using pi = pair<ll, pair<ll, ll>>;
        using ii = pair<int, int>;
 
        #define pb push_back
        #define pp pop_back
        #define ff first
        #define ss second
 
        typedef tree<int, null_type, less<int>, rb_tree_tag,
            tree_order_statistics_node_update> indexed_set;
 
        void build(vector<vector<int>> B);
 
        int N, par[1001]; vector<int> S[1001];
        bool vis[1001];
 
        int findSet(int v) {
            if(par[v] == v) return v;
            return par[v] = findSet(par[v]);
        }
        void unionSet(int u, int v) {
            u = findSet(u), v = findSet(v);
            if(S[u].size() < S[v].size()) swap(u, v);
            for(auto e : S[v]) S[u].pb(e);
            par[v] = u; S[v].clear();
        }
 
        int construct(vector<vector<int>> P) {
            N = P.size();
          	vector<vector<int>> B(N, vector<int>(N, 0));
            for(int l = 0; l < N; l++)
                par[l] = l, S[l].pb(l);
            for(int l = 0; l < N; l++) {
                for(int i = l + 1; i < N; i++) {
                    if(findSet(l) == findSet(i) || P[l][i] == 0)
                        continue;
                    unionSet(l, i);
                }
            }
            for(int l = 0; l < N; l++) {
                for(int i = l + 1; i < N; i++) {
                    if(P[l][i] == 0 && findSet(l) == findSet(i))
                        return 0;
                    if(P[l][i] >= 1 && findSet(l) != findSet(i))
                        return 0;
                }
            }
            for(int l = 0; l < N; l++) {
              	if(S[l].size() <= 1) continue;
              	bool Uno = 0, Dos = 0, Tres = 0;
                for(int i = 0; i < S[l].size(); i++)
                    for(int j = i + 1; j < S[l].size(); j++)
                        Uno |= (P[S[l][i]][S[l][j]] == 1),
                        Dos |= (P[S[l][i]][S[l][j]] == 2),
                        Tres |= (P[S[l][i]][S[l][j]] == 3);
                if(Uno && !Dos && !Tres) {
                    for(int i = 1; i < S[l].size(); i++)
                        B[S[l][i]][S[l][i - 1]] = B[S[l][i - 1]][S[l][i]] = 1;
                    continue;
                }
                if(Dos && !Uno && !Tres) {
                    for(int i = 1; i < S[l].size(); i++)
                        B[S[l][i]][S[l][i - 1]] = B[S[l][i - 1]][S[l][i]] = 1;
                    int U = S[l][0], V = S[l][S[l].size() - 1];
                    if(S[l].size() <= 2) return 0;
                    B[U][V] = B[V][U] = 1;
                    continue;
                }
                if(Uno && Dos && !Tres) {
                    vector<int> V;
                    for(int i = 0; i < S[l].size(); i++) {
                        if(vis[S[l][i]]) continue;
                        V.push_back(S[l][i]); int Pr = S[l][i];
                        for(int j = i + 1; j < S[l].size(); j++) {
                            if(P[S[l][i]][S[l][j]] != 1) continue;
                            B[Pr][S[l][j]] = B[S[l][j]][Pr] = 1;
                            Pr = S[l][j]; vis[S[l][j]] = 1;
                        }
                    }
                    if(V.size() <= 2) return 0;
                    for(int l = 1; l < V.size(); l++)
                        B[V[l]][V[l - 1]] = B[V[l - 1]][V[l]] = 1;
                    B[V[0]][V[V.size() - 1]] = B[V[V.size() - 1]][V[0]] = 1;
                    continue;
                }
              	return 0;
            }
            build(B);
            return 1;
        }

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:59:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |                 for(int i = 0; i < S[l].size(); i++)
      |                                ~~^~~~~~~~~~~~~
supertrees.cpp:60:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |                     for(int j = i + 1; j < S[l].size(); j++)
      |                                        ~~^~~~~~~~~~~~~
supertrees.cpp:65:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |                     for(int i = 1; i < S[l].size(); i++)
      |                                    ~~^~~~~~~~~~~~~
supertrees.cpp:70:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |                     for(int i = 1; i < S[l].size(); i++)
      |                                    ~~^~~~~~~~~~~~~
supertrees.cpp:79:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |                     for(int i = 0; i < S[l].size(); i++) {
      |                                    ~~^~~~~~~~~~~~~
supertrees.cpp:82:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |                         for(int j = i + 1; j < S[l].size(); j++) {
      |                                            ~~^~~~~~~~~~~~~
supertrees.cpp:89:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |                     for(int l = 1; l < V.size(); l++)
      |                                    ~~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 15 ms 1184 KB Output is correct
7 Correct 210 ms 22060 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 15 ms 1184 KB Output is correct
7 Correct 210 ms 22060 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 13 ms 1108 KB Output is correct
13 Correct 294 ms 22080 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 6 ms 724 KB Output is correct
17 Correct 112 ms 12108 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 48 ms 5800 KB Output is correct
21 Correct 199 ms 22100 KB Output is correct
22 Correct 240 ms 22052 KB Output is correct
23 Correct 242 ms 22028 KB Output is correct
24 Correct 213 ms 22040 KB Output is correct
25 Correct 110 ms 12192 KB Output is correct
26 Correct 73 ms 12188 KB Output is correct
27 Correct 204 ms 22060 KB Output is correct
28 Correct 183 ms 22084 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 8 ms 1124 KB Output is correct
9 Correct 169 ms 22064 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 184 ms 22000 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 82 ms 12200 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 55 ms 5732 KB Output is correct
22 Correct 178 ms 22084 KB Output is correct
23 Correct 186 ms 22052 KB Output is correct
24 Correct 192 ms 22044 KB Output is correct
25 Correct 79 ms 12196 KB Output is correct
26 Correct 77 ms 12188 KB Output is correct
27 Correct 181 ms 22056 KB Output is correct
28 Correct 181 ms 22044 KB Output is correct
29 Correct 74 ms 12072 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 65 ms 5788 KB Output is correct
5 Correct 175 ms 22104 KB Output is correct
6 Correct 181 ms 22092 KB Output is correct
7 Correct 199 ms 22020 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 45 ms 5776 KB Output is correct
10 Correct 174 ms 22000 KB Output is correct
11 Correct 185 ms 22060 KB Output is correct
12 Correct 215 ms 22092 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 51 ms 5736 KB Output is correct
17 Correct 176 ms 22092 KB Output is correct
18 Correct 182 ms 22056 KB Output is correct
19 Correct 170 ms 22056 KB Output is correct
20 Correct 176 ms 22092 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 15 ms 1184 KB Output is correct
7 Correct 210 ms 22060 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 13 ms 1108 KB Output is correct
13 Correct 294 ms 22080 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 6 ms 724 KB Output is correct
17 Correct 112 ms 12108 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 48 ms 5800 KB Output is correct
21 Correct 199 ms 22100 KB Output is correct
22 Correct 240 ms 22052 KB Output is correct
23 Correct 242 ms 22028 KB Output is correct
24 Correct 213 ms 22040 KB Output is correct
25 Correct 110 ms 12192 KB Output is correct
26 Correct 73 ms 12188 KB Output is correct
27 Correct 204 ms 22060 KB Output is correct
28 Correct 183 ms 22084 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 8 ms 1124 KB Output is correct
37 Correct 169 ms 22064 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 184 ms 22000 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 5 ms 724 KB Output is correct
45 Correct 82 ms 12200 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 55 ms 5732 KB Output is correct
50 Correct 178 ms 22084 KB Output is correct
51 Correct 186 ms 22052 KB Output is correct
52 Correct 192 ms 22044 KB Output is correct
53 Correct 79 ms 12196 KB Output is correct
54 Correct 77 ms 12188 KB Output is correct
55 Correct 181 ms 22056 KB Output is correct
56 Correct 181 ms 22044 KB Output is correct
57 Correct 74 ms 12072 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 4 ms 724 KB Output is correct
61 Correct 77 ms 12192 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 46 ms 5796 KB Output is correct
66 Correct 76 ms 12108 KB Output is correct
67 Correct 75 ms 12188 KB Output is correct
68 Correct 86 ms 12192 KB Output is correct
69 Correct 68 ms 12192 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 15 ms 1184 KB Output is correct
7 Correct 210 ms 22060 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 13 ms 1108 KB Output is correct
13 Correct 294 ms 22080 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 6 ms 724 KB Output is correct
17 Correct 112 ms 12108 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 48 ms 5800 KB Output is correct
21 Correct 199 ms 22100 KB Output is correct
22 Correct 240 ms 22052 KB Output is correct
23 Correct 242 ms 22028 KB Output is correct
24 Correct 213 ms 22040 KB Output is correct
25 Correct 110 ms 12192 KB Output is correct
26 Correct 73 ms 12188 KB Output is correct
27 Correct 204 ms 22060 KB Output is correct
28 Correct 183 ms 22084 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 8 ms 1124 KB Output is correct
37 Correct 169 ms 22064 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 184 ms 22000 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 5 ms 724 KB Output is correct
45 Correct 82 ms 12200 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 55 ms 5732 KB Output is correct
50 Correct 178 ms 22084 KB Output is correct
51 Correct 186 ms 22052 KB Output is correct
52 Correct 192 ms 22044 KB Output is correct
53 Correct 79 ms 12196 KB Output is correct
54 Correct 77 ms 12188 KB Output is correct
55 Correct 181 ms 22056 KB Output is correct
56 Correct 181 ms 22044 KB Output is correct
57 Correct 74 ms 12072 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 65 ms 5788 KB Output is correct
62 Correct 175 ms 22104 KB Output is correct
63 Correct 181 ms 22092 KB Output is correct
64 Correct 199 ms 22020 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 45 ms 5776 KB Output is correct
67 Correct 174 ms 22000 KB Output is correct
68 Correct 185 ms 22060 KB Output is correct
69 Correct 215 ms 22092 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 1 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 51 ms 5736 KB Output is correct
74 Correct 176 ms 22092 KB Output is correct
75 Correct 182 ms 22056 KB Output is correct
76 Correct 170 ms 22056 KB Output is correct
77 Correct 176 ms 22092 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 4 ms 724 KB Output is correct
81 Correct 77 ms 12192 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 46 ms 5796 KB Output is correct
86 Correct 76 ms 12108 KB Output is correct
87 Correct 75 ms 12188 KB Output is correct
88 Correct 86 ms 12192 KB Output is correct
89 Correct 68 ms 12192 KB Output is correct
90 Correct 1 ms 212 KB Output is correct
91 Correct 1 ms 212 KB Output is correct
92 Correct 5 ms 744 KB Output is correct
93 Correct 116 ms 12188 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 17 ms 3240 KB Output is correct
98 Correct 74 ms 12192 KB Output is correct
99 Correct 73 ms 12108 KB Output is correct
100 Correct 78 ms 12192 KB Output is correct
101 Correct 74 ms 12192 KB Output is correct
102 Correct 74 ms 12188 KB Output is correct
103 Correct 91 ms 12072 KB Output is correct
104 Correct 80 ms 12192 KB Output is correct
105 Correct 96 ms 12196 KB Output is correct