oj.uz

Submission #1108742

# Submission time Handle Problem Language Result Execution time Memory
1108742 2024-11-04T21:57:50 Z SteveBro Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 182 ms 24144 KB 
#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
vector <vector<int>> sol;
int sef[1001];
int ef(int x)
{
    if(sef[x]==x)
        return x;
    else
        return sef[x]=ef(sef[x]);
}
vector <int> comp[1001],rez,l;
bool ok[1001];
int construct(vector <vector <int>> p)
{
    int i,j,nr,n;
    n=p.size();
    for(i=0;i<n;i++)
        sef[i]=i;
    l.resize(n);
    for(i=0;i<n;i++)
        sol.push_back(l);
    for(i=0;i<n;i++)
    {
        for(j=0,nr=0;j<n;j++)
        {
            if(p[i][j]==3)
                return 0;
            if(p[i][j]==0&&ef(i)==ef(j))
                return 0;
            if(p[i][j]>0)
                sef[ef(i)]=ef(j);
            if(p[i][j]==2)
                nr++;
            if(p[i][j]==1&&i!=j)
                ok[i]=true;
        }
        if(nr==1)
            return 0;
    }
    for(i=0;i<n;i++)
        comp[ef(i)].push_back(i);
    for(i=0;i<n;i++)
        sef[i]=-1;
    for(i=0;i<n;i++)
    {
        if(!comp[i].empty())
        {
            rez.clear();
            for(auto x : comp[i])
            {
                if(!ok[x])/// se alfa pe ciclu
                    rez.push_back(x);
                else
                {
                    if(sef[x]==-1)///nou lant
                    {
                        rez.push_back(x);
                        sef[x]=x;
                        for(j=0;j<n;j++)
                        {
                            if(p[x][j]==1&&x!=j)
                            {
                                if(sef[j]==-1)
                                {
                                    sef[j]=x;
                                    sol[x][j]=sol[j][x]=1;
                                }
                                else
                                    return 0;
                            }
                        }
                    }
                    else
                    {
                        for(j=0;j<n;j++)
                        {
                            if(p[x][j]==2&&sef[x]==sef[j])
                                return 0;
                            if(p[x][j]==1&&sef[x]!=sef[j])
                                return 0;
                        }
                    }
                }
            }
            if(rez.size()>2)
            {
                for(j=1;j<rez.size();j++)
                {
                    sol[rez[j-1]][rez[j]]=sol[rez[j]][rez[j-1]]=1;
                }
                sol[rez[0]][rez[j-1]]=sol[rez[j-1]][rez[0]]=1;
            }
        }
    }
    build(sol);
    return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:89:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |                 for(j=1;j<rez.size();j++)
      |                         ~^~~~~~~~~~~

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 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 7 ms 1360 KB Output is correct
7 Correct 127 ms 24056 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 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 7 ms 1360 KB Output is correct
7 Correct 127 ms 24056 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 6 ms 1360 KB Output is correct
13 Correct 144 ms 23972 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 3 ms 848 KB Output is correct
17 Correct 58 ms 14248 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 31 ms 6224 KB Output is correct
21 Correct 182 ms 23976 KB Output is correct
22 Correct 144 ms 24144 KB Output is correct
23 Correct 129 ms 24136 KB Output is correct
24 Correct 141 ms 24136 KB Output is correct
25 Correct 65 ms 14152 KB Output is correct
26 Correct 54 ms 14168 KB Output is correct
27 Correct 131 ms 24136 KB Output is correct
28 Correct 132 ms 23972 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 504 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 464 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 8 ms 1412 KB Output is correct
9 Correct 152 ms 24100 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 6 ms 1372 KB Output is correct
13 Correct 123 ms 24016 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 3 ms 848 KB Output is correct
17 Correct 59 ms 14256 KB Output is correct
18 Correct 1 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 33 ms 6224 KB Output is correct
22 Correct 122 ms 24112 KB Output is correct
23 Correct 131 ms 24020 KB Output is correct
24 Correct 144 ms 24100 KB Output is correct
25 Correct 57 ms 14044 KB Output is correct
26 Correct 58 ms 14112 KB Output is correct
27 Correct 132 ms 24136 KB Output is correct
28 Correct 135 ms 23980 KB Output is correct
29 Correct 77 ms 14152 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 336 KB Output is correct
4 Correct 32 ms 6324 KB Output is correct
5 Correct 128 ms 24136 KB Output is correct
6 Correct 129 ms 24136 KB Output is correct
7 Correct 133 ms 24100 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 32 ms 6236 KB Output is correct
10 Correct 151 ms 24112 KB Output is correct
11 Correct 126 ms 24104 KB Output is correct
12 Correct 153 ms 23976 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 508 KB Output is correct
16 Correct 33 ms 6432 KB Output is correct
17 Correct 132 ms 23972 KB Output is correct
18 Correct 124 ms 23968 KB Output is correct
19 Correct 124 ms 24136 KB Output is correct
20 Correct 132 ms 24136 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 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 7 ms 1360 KB Output is correct
7 Correct 127 ms 24056 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 6 ms 1360 KB Output is correct
13 Correct 144 ms 23972 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 3 ms 848 KB Output is correct
17 Correct 58 ms 14248 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 31 ms 6224 KB Output is correct
21 Correct 182 ms 23976 KB Output is correct
22 Correct 144 ms 24144 KB Output is correct
23 Correct 129 ms 24136 KB Output is correct
24 Correct 141 ms 24136 KB Output is correct
25 Correct 65 ms 14152 KB Output is correct
26 Correct 54 ms 14168 KB Output is correct
27 Correct 131 ms 24136 KB Output is correct
28 Correct 132 ms 23972 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 504 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 464 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 8 ms 1412 KB Output is correct
37 Correct 152 ms 24100 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 6 ms 1372 KB Output is correct
41 Correct 123 ms 24016 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 3 ms 848 KB Output is correct
45 Correct 59 ms 14256 KB Output is correct
46 Correct 1 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 33 ms 6224 KB Output is correct
50 Correct 122 ms 24112 KB Output is correct
51 Correct 131 ms 24020 KB Output is correct
52 Correct 144 ms 24100 KB Output is correct
53 Correct 57 ms 14044 KB Output is correct
54 Correct 58 ms 14112 KB Output is correct
55 Correct 132 ms 24136 KB Output is correct
56 Correct 135 ms 23980 KB Output is correct
57 Correct 77 ms 14152 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 3 ms 992 KB Output is correct
61 Correct 58 ms 14164 KB Output is correct
62 Correct 1 ms 336 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 1 ms 336 KB Output is correct
65 Correct 32 ms 6316 KB Output is correct
66 Correct 55 ms 14152 KB Output is correct
67 Correct 60 ms 14152 KB Output is correct
68 Correct 60 ms 14152 KB Output is correct
69 Correct 53 ms 14252 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 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 7 ms 1360 KB Output is correct
7 Correct 127 ms 24056 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 6 ms 1360 KB Output is correct
13 Correct 144 ms 23972 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 3 ms 848 KB Output is correct
17 Correct 58 ms 14248 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 31 ms 6224 KB Output is correct
21 Correct 182 ms 23976 KB Output is correct
22 Correct 144 ms 24144 KB Output is correct
23 Correct 129 ms 24136 KB Output is correct
24 Correct 141 ms 24136 KB Output is correct
25 Correct 65 ms 14152 KB Output is correct
26 Correct 54 ms 14168 KB Output is correct
27 Correct 131 ms 24136 KB Output is correct
28 Correct 132 ms 23972 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 504 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 464 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 8 ms 1412 KB Output is correct
37 Correct 152 ms 24100 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 6 ms 1372 KB Output is correct
41 Correct 123 ms 24016 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 3 ms 848 KB Output is correct
45 Correct 59 ms 14256 KB Output is correct
46 Correct 1 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 33 ms 6224 KB Output is correct
50 Correct 122 ms 24112 KB Output is correct
51 Correct 131 ms 24020 KB Output is correct
52 Correct 144 ms 24100 KB Output is correct
53 Correct 57 ms 14044 KB Output is correct
54 Correct 58 ms 14112 KB Output is correct
55 Correct 132 ms 24136 KB Output is correct
56 Correct 135 ms 23980 KB Output is correct
57 Correct 77 ms 14152 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 336 KB Output is correct
61 Correct 32 ms 6324 KB Output is correct
62 Correct 128 ms 24136 KB Output is correct
63 Correct 129 ms 24136 KB Output is correct
64 Correct 133 ms 24100 KB Output is correct
65 Correct 1 ms 336 KB Output is correct
66 Correct 32 ms 6236 KB Output is correct
67 Correct 151 ms 24112 KB Output is correct
68 Correct 126 ms 24104 KB Output is correct
69 Correct 153 ms 23976 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 508 KB Output is correct
73 Correct 33 ms 6432 KB Output is correct
74 Correct 132 ms 23972 KB Output is correct
75 Correct 124 ms 23968 KB Output is correct
76 Correct 124 ms 24136 KB Output is correct
77 Correct 132 ms 24136 KB Output is correct
78 Correct 1 ms 336 KB Output is correct
79 Correct 1 ms 336 KB Output is correct
80 Correct 3 ms 992 KB Output is correct
81 Correct 58 ms 14164 KB Output is correct
82 Correct 1 ms 336 KB Output is correct
83 Correct 1 ms 468 KB Output is correct
84 Correct 1 ms 336 KB Output is correct
85 Correct 32 ms 6316 KB Output is correct
86 Correct 55 ms 14152 KB Output is correct
87 Correct 60 ms 14152 KB Output is correct
88 Correct 60 ms 14152 KB Output is correct
89 Correct 53 ms 14252 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 848 KB Output is correct
93 Correct 61 ms 14152 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 336 KB Output is correct
97 Correct 14 ms 3920 KB Output is correct
98 Correct 55 ms 14152 KB Output is correct
99 Correct 54 ms 14252 KB Output is correct
100 Correct 53 ms 14248 KB Output is correct
101 Correct 55 ms 14040 KB Output is correct
102 Correct 51 ms 14120 KB Output is correct
103 Correct 52 ms 14156 KB Output is correct
104 Correct 70 ms 14152 KB Output is correct
105 Correct 62 ms 14152 KB Output is correct