oj.uz

Submission #603768

# Submission time Handle Problem Language Result Execution time Memory
603768 2022-07-24T11:18:04 Z lcj Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 220 ms 22140 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#include "supertrees.h"

#define con(a, b) answer[a][b] = 1;answer[b][a] = 1;

int construct(vector<vector<int>> p) {
	int n = p.size();
    vector<vector<int>> answer(n, vector<int>(n, 0));
    vector<vector<int>> groups;
    vector<bool> assigned(n, 0);
    for (int i = 0; i < n; i++)
    {
        if (assigned[i]) continue;
        vector<int> cgroup;
        vector<bool> ingroup(n, 0);
        for (int j = 0; j < n; j++)
        {
            if (p[i][j] == 0) continue;
            if (assigned[j]) {
                return 0;
            }
            ingroup[j] = 1;
            cgroup.push_back(j);
            assigned[j] = 1;
        }
        for (int j : cgroup) {
            for (int k = 0; k < n; k++)
            {
                if (ingroup[k] != (bool)p[j][k]) {
                    return 0;
                }
            }
        }
        groups.push_back(cgroup);
    }
    for (auto &g : groups) {
        vector<vector<int>> branches;
        vector<bool> br(n, 0);
        for (int i : g) {
            if (br[i]) continue;
            vector<int> branch;
            vector<bool> inbranch(n, 0);
            for (int j : g) {
                if (p[i][j] == 2) continue;
                if (br[j]) return 0;
                inbranch[j] = 1;
                branch.push_back(j);
                br[j] = 1;
            }
            for (int j : branch) {
                for (int k : g) {
                    if (inbranch[k] != (p[j][k] == 1)) {
                        return 0;
                    }
                }
            }
            branches.push_back(branch);
        }
        if (branches.size() == 2) return 0;
        for (int i = 0; i < branches.size(); i++)
        {
            if (branches.size() != 1) {
                con(branches[i][0], branches[(i+1)%branches.size()][0])
            }
            for (int j = 0; j < branches[i].size()-1; j++)
            {
                con(branches[i][j], branches[i][j+1])
            }
        }
        
    }
	build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:67:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |         for (int i = 0; i < branches.size(); i++)
      |                         ~~^~~~~~~~~~~~~~~~~
supertrees.cpp:72:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |             for (int j = 0; j < branches[i].size()-1; j++)
      |                             ~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1140 KB Output is correct
7 Correct 163 ms 22052 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1140 KB Output is correct
7 Correct 163 ms 22052 KB Output is correct
8 Correct 0 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 0 ms 212 KB Output is correct
12 Correct 8 ms 1136 KB Output is correct
13 Correct 173 ms 22124 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 76 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 47 ms 5724 KB Output is correct
21 Correct 166 ms 22008 KB Output is correct
22 Correct 168 ms 22020 KB Output is correct
23 Correct 175 ms 21964 KB Output is correct
24 Correct 174 ms 22140 KB Output is correct
25 Correct 71 ms 12036 KB Output is correct
26 Correct 71 ms 12036 KB Output is correct
27 Correct 173 ms 21968 KB Output is correct
28 Correct 176 ms 22056 KB Output is correct

Subtask #3
19.0 / 19.0

# 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 8 ms 1180 KB Output is correct
9 Correct 169 ms 22020 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 7 ms 1104 KB Output is correct
13 Correct 161 ms 22004 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 74 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 59 ms 5768 KB Output is correct
22 Correct 169 ms 21944 KB Output is correct
23 Correct 169 ms 22064 KB Output is correct
24 Correct 180 ms 22024 KB Output is correct
25 Correct 80 ms 12160 KB Output is correct
26 Correct 70 ms 12036 KB Output is correct
27 Correct 170 ms 22016 KB Output is correct
28 Correct 176 ms 22044 KB Output is correct
29 Correct 85 ms 12164 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 48 ms 5692 KB Output is correct
5 Correct 166 ms 22020 KB Output is correct
6 Correct 186 ms 22016 KB Output is correct
7 Correct 188 ms 22108 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 51 ms 5764 KB Output is correct
10 Correct 167 ms 22020 KB Output is correct
11 Correct 168 ms 22012 KB Output is correct
12 Correct 205 ms 22052 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 224 KB Output is correct
16 Correct 42 ms 5696 KB Output is correct
17 Correct 220 ms 22024 KB Output is correct
18 Correct 162 ms 22128 KB Output is correct
19 Correct 173 ms 21968 KB Output is correct
20 Correct 169 ms 22020 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1140 KB Output is correct
7 Correct 163 ms 22052 KB Output is correct
8 Correct 0 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 0 ms 212 KB Output is correct
12 Correct 8 ms 1136 KB Output is correct
13 Correct 173 ms 22124 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 76 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 47 ms 5724 KB Output is correct
21 Correct 166 ms 22008 KB Output is correct
22 Correct 168 ms 22020 KB Output is correct
23 Correct 175 ms 21964 KB Output is correct
24 Correct 174 ms 22140 KB Output is correct
25 Correct 71 ms 12036 KB Output is correct
26 Correct 71 ms 12036 KB Output is correct
27 Correct 173 ms 21968 KB Output is correct
28 Correct 176 ms 22056 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 8 ms 1180 KB Output is correct
37 Correct 169 ms 22020 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 7 ms 1104 KB Output is correct
41 Correct 161 ms 22004 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 74 ms 12036 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 59 ms 5768 KB Output is correct
50 Correct 169 ms 21944 KB Output is correct
51 Correct 169 ms 22064 KB Output is correct
52 Correct 180 ms 22024 KB Output is correct
53 Correct 80 ms 12160 KB Output is correct
54 Correct 70 ms 12036 KB Output is correct
55 Correct 170 ms 22016 KB Output is correct
56 Correct 176 ms 22044 KB Output is correct
57 Correct 85 ms 12164 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 4 ms 724 KB Output is correct
61 Correct 93 ms 12044 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 41 ms 5764 KB Output is correct
66 Correct 82 ms 12048 KB Output is correct
67 Correct 78 ms 12036 KB Output is correct
68 Correct 88 ms 12040 KB Output is correct
69 Correct 71 ms 12236 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1140 KB Output is correct
7 Correct 163 ms 22052 KB Output is correct
8 Correct 0 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 0 ms 212 KB Output is correct
12 Correct 8 ms 1136 KB Output is correct
13 Correct 173 ms 22124 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 76 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 47 ms 5724 KB Output is correct
21 Correct 166 ms 22008 KB Output is correct
22 Correct 168 ms 22020 KB Output is correct
23 Correct 175 ms 21964 KB Output is correct
24 Correct 174 ms 22140 KB Output is correct
25 Correct 71 ms 12036 KB Output is correct
26 Correct 71 ms 12036 KB Output is correct
27 Correct 173 ms 21968 KB Output is correct
28 Correct 176 ms 22056 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 8 ms 1180 KB Output is correct
37 Correct 169 ms 22020 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 7 ms 1104 KB Output is correct
41 Correct 161 ms 22004 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 74 ms 12036 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 59 ms 5768 KB Output is correct
50 Correct 169 ms 21944 KB Output is correct
51 Correct 169 ms 22064 KB Output is correct
52 Correct 180 ms 22024 KB Output is correct
53 Correct 80 ms 12160 KB Output is correct
54 Correct 70 ms 12036 KB Output is correct
55 Correct 170 ms 22016 KB Output is correct
56 Correct 176 ms 22044 KB Output is correct
57 Correct 85 ms 12164 KB Output is correct
58 Correct 0 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 48 ms 5692 KB Output is correct
62 Correct 166 ms 22020 KB Output is correct
63 Correct 186 ms 22016 KB Output is correct
64 Correct 188 ms 22108 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 51 ms 5764 KB Output is correct
67 Correct 167 ms 22020 KB Output is correct
68 Correct 168 ms 22012 KB Output is correct
69 Correct 205 ms 22052 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 224 KB Output is correct
73 Correct 42 ms 5696 KB Output is correct
74 Correct 220 ms 22024 KB Output is correct
75 Correct 162 ms 22128 KB Output is correct
76 Correct 173 ms 21968 KB Output is correct
77 Correct 169 ms 22020 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 4 ms 724 KB Output is correct
81 Correct 93 ms 12044 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 41 ms 5764 KB Output is correct
86 Correct 82 ms 12048 KB Output is correct
87 Correct 78 ms 12036 KB Output is correct
88 Correct 88 ms 12040 KB Output is correct
89 Correct 71 ms 12236 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 724 KB Output is correct
93 Correct 79 ms 12044 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 17 ms 3284 KB Output is correct
98 Correct 79 ms 12108 KB Output is correct
99 Correct 68 ms 12032 KB Output is correct
100 Correct 92 ms 12036 KB Output is correct
101 Correct 83 ms 12160 KB Output is correct
102 Correct 65 ms 12032 KB Output is correct
103 Correct 63 ms 12036 KB Output is correct
104 Correct 63 ms 12032 KB Output is correct
105 Correct 77 ms 12032 KB Output is correct