oj.uz

Submission #1119139

# Submission time Handle Problem Language Result Execution time Memory
1119139 2024-11-26T16:20:42 Z alexdd Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 210 ms 28040 KB 
#include<bits/stdc++.h>
#include "supertrees.h"
using namespace std;
int n;
bool visited[1005];
vector<int> comp;
vector<vector<int>> p;
void dfs(int nod)
{
    comp.push_back(nod);
    visited[nod]=1;
    for(int i=0;i<n;i++)
        if(!visited[i] && p[nod][i]>0)
            dfs(i);
}
vector<int> aux;
void dfs2(int nod)
{
    visited[nod]=1;
    aux.push_back(nod);
    for(int i=0;i<n;i++)
        if(!visited[i] && p[nod][i]==1)
            dfs2(i);
}
int construct(vector<vector<int>> copp)
{
    p = copp;
    n = p.size();
    vector<vector<int>> b(n, vector<int>(n));
    for(int i=0;i<n;i++)
    {
        if(!visited[i])
        {
            comp.clear();
            dfs(i);
            for(int x:comp)
                visited[x]=0;
            vector<int> roots;
            vector<vector<int>> cv;
            for(int x:comp)
            {
                if(!visited[x])
                {
                    roots.push_back(x);
                    aux.clear();
                    dfs2(x);
                    cv.push_back(aux);
                    for(int u:aux)
                        for(int v:aux)
                            if(p[u][v]!=1)
                                return 0;
                    for(auto y:aux)
                        if(y!=x)
                            b[x][y]=b[y][x]=1;
                }
            }
            for(int u=0;u<cv.size();u++)
            {
                for(int v=u+1;v<cv.size();v++)
                {
                    for(int x:cv[u])
                        for(int y:cv[v])
                            if(p[x][y] != 2)
                                return 0;
                }
            }
            if((int)roots.size() == 2)
                return 0;
            if((int)roots.size() > 1)
            {
                for(int i=0;i+1<roots.size();i++)
                    b[roots[i]][roots[i+1]] = b[roots[i+1]][roots[i]] = 1;
                b[roots[0]][roots.back()] = b[roots.back()][roots[0]] = 1;
            }
        }
    }
    build(b);
    return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:57:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |             for(int u=0;u<cv.size();u++)
      |                         ~^~~~~~~~~~
supertrees.cpp:59:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |                 for(int v=u+1;v<cv.size();v++)
      |                               ~^~~~~~~~~~
supertrees.cpp:71:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |                 for(int i=0;i+1<roots.size();i++)
      |                             ~~~^~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 504 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 5 ms 1360 KB Output is correct
7 Correct 172 ms 26184 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 504 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 5 ms 1360 KB Output is correct
7 Correct 172 ms 26184 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 7 ms 1380 KB Output is correct
13 Correct 201 ms 25928 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 6 ms 1104 KB Output is correct
17 Correct 81 ms 18060 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 38 ms 7268 KB Output is correct
21 Correct 170 ms 28040 KB Output is correct
22 Correct 183 ms 28036 KB Output is correct
23 Correct 182 ms 28032 KB Output is correct
24 Correct 189 ms 27920 KB Output is correct
25 Correct 64 ms 17992 KB Output is correct
26 Correct 61 ms 17928 KB Output is correct
27 Correct 187 ms 27972 KB Output is correct
28 Correct 210 ms 28008 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 9 ms 1360 KB Output is correct
9 Correct 193 ms 26140 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 8 ms 1360 KB Output is correct
13 Correct 174 ms 26140 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 5 ms 1116 KB Output is correct
17 Correct 78 ms 16156 KB Output is correct
18 Correct 2 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 57 ms 6784 KB Output is correct
22 Correct 191 ms 25928 KB Output is correct
23 Correct 192 ms 25900 KB Output is correct
24 Correct 170 ms 26132 KB Output is correct
25 Correct 56 ms 16184 KB Output is correct
26 Correct 82 ms 16144 KB Output is correct
27 Correct 181 ms 25928 KB Output is correct
28 Correct 169 ms 26140 KB Output is correct
29 Correct 129 ms 16148 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 47 ms 6728 KB Output is correct
5 Correct 193 ms 26140 KB Output is correct
6 Correct 166 ms 26136 KB Output is correct
7 Correct 169 ms 26184 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 39 ms 6792 KB Output is correct
10 Correct 174 ms 26084 KB Output is correct
11 Correct 181 ms 25928 KB Output is correct
12 Correct 150 ms 26136 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 42 ms 6768 KB Output is correct
17 Correct 139 ms 26140 KB Output is correct
18 Correct 158 ms 26140 KB Output is correct
19 Correct 174 ms 26140 KB Output is correct
20 Correct 166 ms 26136 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 504 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 5 ms 1360 KB Output is correct
7 Correct 172 ms 26184 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 7 ms 1380 KB Output is correct
13 Correct 201 ms 25928 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 6 ms 1104 KB Output is correct
17 Correct 81 ms 18060 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 38 ms 7268 KB Output is correct
21 Correct 170 ms 28040 KB Output is correct
22 Correct 183 ms 28036 KB Output is correct
23 Correct 182 ms 28032 KB Output is correct
24 Correct 189 ms 27920 KB Output is correct
25 Correct 64 ms 17992 KB Output is correct
26 Correct 61 ms 17928 KB Output is correct
27 Correct 187 ms 27972 KB Output is correct
28 Correct 210 ms 28008 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 9 ms 1360 KB Output is correct
37 Correct 193 ms 26140 KB Output is correct
38 Correct 2 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 8 ms 1360 KB Output is correct
41 Correct 174 ms 26140 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 5 ms 1116 KB Output is correct
45 Correct 78 ms 16156 KB Output is correct
46 Correct 2 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 336 KB Output is correct
49 Correct 57 ms 6784 KB Output is correct
50 Correct 191 ms 25928 KB Output is correct
51 Correct 192 ms 25900 KB Output is correct
52 Correct 170 ms 26132 KB Output is correct
53 Correct 56 ms 16184 KB Output is correct
54 Correct 82 ms 16144 KB Output is correct
55 Correct 181 ms 25928 KB Output is correct
56 Correct 169 ms 26140 KB Output is correct
57 Correct 129 ms 16148 KB Output is correct
58 Correct 1 ms 772 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 6 ms 1104 KB Output is correct
61 Correct 82 ms 18108 KB Output is correct
62 Correct 1 ms 592 KB Output is correct
63 Correct 1 ms 336 KB Output is correct
64 Correct 1 ms 336 KB Output is correct
65 Correct 48 ms 7256 KB Output is correct
66 Correct 106 ms 18104 KB Output is correct
67 Correct 86 ms 17992 KB Output is correct
68 Correct 78 ms 18188 KB Output is correct
69 Correct 60 ms 17988 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 504 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 5 ms 1360 KB Output is correct
7 Correct 172 ms 26184 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 7 ms 1380 KB Output is correct
13 Correct 201 ms 25928 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 6 ms 1104 KB Output is correct
17 Correct 81 ms 18060 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 38 ms 7268 KB Output is correct
21 Correct 170 ms 28040 KB Output is correct
22 Correct 183 ms 28036 KB Output is correct
23 Correct 182 ms 28032 KB Output is correct
24 Correct 189 ms 27920 KB Output is correct
25 Correct 64 ms 17992 KB Output is correct
26 Correct 61 ms 17928 KB Output is correct
27 Correct 187 ms 27972 KB Output is correct
28 Correct 210 ms 28008 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 9 ms 1360 KB Output is correct
37 Correct 193 ms 26140 KB Output is correct
38 Correct 2 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 8 ms 1360 KB Output is correct
41 Correct 174 ms 26140 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 5 ms 1116 KB Output is correct
45 Correct 78 ms 16156 KB Output is correct
46 Correct 2 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 336 KB Output is correct
49 Correct 57 ms 6784 KB Output is correct
50 Correct 191 ms 25928 KB Output is correct
51 Correct 192 ms 25900 KB Output is correct
52 Correct 170 ms 26132 KB Output is correct
53 Correct 56 ms 16184 KB Output is correct
54 Correct 82 ms 16144 KB Output is correct
55 Correct 181 ms 25928 KB Output is correct
56 Correct 169 ms 26140 KB Output is correct
57 Correct 129 ms 16148 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 504 KB Output is correct
61 Correct 47 ms 6728 KB Output is correct
62 Correct 193 ms 26140 KB Output is correct
63 Correct 166 ms 26136 KB Output is correct
64 Correct 169 ms 26184 KB Output is correct
65 Correct 1 ms 336 KB Output is correct
66 Correct 39 ms 6792 KB Output is correct
67 Correct 174 ms 26084 KB Output is correct
68 Correct 181 ms 25928 KB Output is correct
69 Correct 150 ms 26136 KB Output is correct
70 Correct 1 ms 336 KB Output is correct
71 Correct 1 ms 336 KB Output is correct
72 Correct 1 ms 336 KB Output is correct
73 Correct 42 ms 6768 KB Output is correct
74 Correct 139 ms 26140 KB Output is correct
75 Correct 158 ms 26140 KB Output is correct
76 Correct 174 ms 26140 KB Output is correct
77 Correct 166 ms 26136 KB Output is correct
78 Correct 1 ms 772 KB Output is correct
79 Correct 1 ms 336 KB Output is correct
80 Correct 6 ms 1104 KB Output is correct
81 Correct 82 ms 18108 KB Output is correct
82 Correct 1 ms 592 KB Output is correct
83 Correct 1 ms 336 KB Output is correct
84 Correct 1 ms 336 KB Output is correct
85 Correct 48 ms 7256 KB Output is correct
86 Correct 106 ms 18104 KB Output is correct
87 Correct 86 ms 17992 KB Output is correct
88 Correct 78 ms 18188 KB Output is correct
89 Correct 60 ms 17988 KB Output is correct
90 Correct 1 ms 336 KB Output is correct
91 Correct 1 ms 336 KB Output is correct
92 Correct 4 ms 1104 KB Output is correct
93 Correct 85 ms 18248 KB Output is correct
94 Correct 1 ms 336 KB Output is correct
95 Correct 1 ms 336 KB Output is correct
96 Correct 1 ms 592 KB Output is correct
97 Correct 19 ms 4740 KB Output is correct
98 Correct 86 ms 18248 KB Output is correct
99 Correct 86 ms 18184 KB Output is correct
100 Correct 62 ms 18188 KB Output is correct
101 Correct 93 ms 18052 KB Output is correct
102 Correct 83 ms 18184 KB Output is correct
103 Correct 79 ms 18056 KB Output is correct
104 Correct 89 ms 18056 KB Output is correct
105 Correct 78 ms 18064 KB Output is correct