oj.uz

Submission #1041359

# Submission time Handle Problem Language Result Execution time Memory
1041359 2024-08-01T23:04:36 Z boyliguanhan Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 116 ms 22352 KB 
#include "supertrees.h"
using namespace std;
#define AE(a,b) ans[a][b]=ans[b][a]=1
struct dsu {
    int par[1010];
    int abp(int n){
        return par[n]?par[n]=abp(par[n]):n;
    }
    void merge(int a,int b){
        a=abp(a+1);
        b=abp(b+1);
        if(a-b)par[a]=b;
    }
    int CC(int n){
        return abp(n+1)-1;
    }
} comps, chains, CCs;
int construct(vector<vector<int>> p) {
    for(auto i:p)
        for(auto j:i)
            if(j==3)
                return 0;
    int n=p.size();
    vector<vector<int>>ans(n,vector<int>(n));
    for(int i=0;i<n;i++)
        for(int j=0;j<n;j++)
            if(p[i][j])
                CCs.merge(i,j);
    for(int i=0;i<n;i++)
        for(int j=0;j<n;j++)
            if(p[i][j]==1)
                chains.merge(i,j);
    for(int i=0;i<n;i++)
        for(int j=0;j<n;j++) if(p[i][j]==2)
            comps.merge(chains.CC(i),chains.CC(j));
    for(int i=0;i<n;i++)
        for(int j=0;j<n;j++)
            if(!p[i][j]) {
                if(CCs.CC(i)==CCs.CC(j))
                    return 0;
            } else if(p[i][j]==2)
                if(chains.CC(i)==chains.CC(j))
                    return 0;
    vector<int>thgs[1010];
    for(int i=0;i<n;i++)
        if(chains.CC(i)-i)
            AE(chains.CC(i),i);
        else thgs[comps.CC(i)].push_back(i);
    for(int i=0;i<n;i++){
        if(thgs[i].size()<2)continue;
        if(thgs[i].size()==2)return 0;
        thgs[i].push_back(thgs[i][0]);
        for(int j=1;j<thgs[i].size();j++)   
            AE(thgs[i][j],thgs[i][j-1]);
    }
    build(ans);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int j=1;j<thgs[i].size();j++)
      |                     ~^~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 116 ms 22032 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 116 ms 22032 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 98 ms 22044 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 388 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 12296 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 24 ms 5900 KB Output is correct
21 Correct 99 ms 22036 KB Output is correct
22 Correct 110 ms 22016 KB Output is correct
23 Correct 105 ms 22024 KB Output is correct
24 Correct 99 ms 22100 KB Output is correct
25 Correct 45 ms 12120 KB Output is correct
26 Correct 44 ms 12044 KB Output is correct
27 Correct 105 ms 22100 KB Output is correct
28 Correct 94 ms 22096 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 4 ms 1116 KB Output is correct
9 Correct 93 ms 22032 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1096 KB Output is correct
13 Correct 107 ms 22096 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 12052 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 26 ms 5868 KB Output is correct
22 Correct 100 ms 22016 KB Output is correct
23 Correct 95 ms 22096 KB Output is correct
24 Correct 105 ms 22100 KB Output is correct
25 Correct 44 ms 12300 KB Output is correct
26 Correct 44 ms 12116 KB Output is correct
27 Correct 95 ms 22100 KB Output is correct
28 Correct 104 ms 22088 KB Output is correct
29 Correct 44 ms 12116 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 24 ms 5724 KB Output is correct
5 Correct 103 ms 22076 KB Output is correct
6 Correct 98 ms 22100 KB Output is correct
7 Correct 105 ms 22032 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 24 ms 5772 KB Output is correct
10 Correct 99 ms 22032 KB Output is correct
11 Correct 98 ms 22016 KB Output is correct
12 Correct 103 ms 22100 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 412 KB Output is correct
16 Correct 24 ms 5748 KB Output is correct
17 Correct 102 ms 22100 KB Output is correct
18 Correct 100 ms 22100 KB Output is correct
19 Correct 109 ms 22352 KB Output is correct
20 Correct 108 ms 22100 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 116 ms 22032 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 98 ms 22044 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 388 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 12296 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 24 ms 5900 KB Output is correct
21 Correct 99 ms 22036 KB Output is correct
22 Correct 110 ms 22016 KB Output is correct
23 Correct 105 ms 22024 KB Output is correct
24 Correct 99 ms 22100 KB Output is correct
25 Correct 45 ms 12120 KB Output is correct
26 Correct 44 ms 12044 KB Output is correct
27 Correct 105 ms 22100 KB Output is correct
28 Correct 94 ms 22096 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 4 ms 1116 KB Output is correct
37 Correct 93 ms 22032 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 4 ms 1096 KB Output is correct
41 Correct 107 ms 22096 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 57 ms 12052 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 26 ms 5868 KB Output is correct
50 Correct 100 ms 22016 KB Output is correct
51 Correct 95 ms 22096 KB Output is correct
52 Correct 105 ms 22100 KB Output is correct
53 Correct 44 ms 12300 KB Output is correct
54 Correct 44 ms 12116 KB Output is correct
55 Correct 95 ms 22100 KB Output is correct
56 Correct 104 ms 22088 KB Output is correct
57 Correct 44 ms 12116 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 2 ms 936 KB Output is correct
61 Correct 59 ms 12288 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 25 ms 5800 KB Output is correct
66 Correct 45 ms 12044 KB Output is correct
67 Correct 45 ms 12220 KB Output is correct
68 Correct 48 ms 12116 KB Output is correct
69 Correct 44 ms 12112 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 116 ms 22032 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 98 ms 22044 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 388 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 12296 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 24 ms 5900 KB Output is correct
21 Correct 99 ms 22036 KB Output is correct
22 Correct 110 ms 22016 KB Output is correct
23 Correct 105 ms 22024 KB Output is correct
24 Correct 99 ms 22100 KB Output is correct
25 Correct 45 ms 12120 KB Output is correct
26 Correct 44 ms 12044 KB Output is correct
27 Correct 105 ms 22100 KB Output is correct
28 Correct 94 ms 22096 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 4 ms 1116 KB Output is correct
37 Correct 93 ms 22032 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 4 ms 1096 KB Output is correct
41 Correct 107 ms 22096 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 57 ms 12052 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 26 ms 5868 KB Output is correct
50 Correct 100 ms 22016 KB Output is correct
51 Correct 95 ms 22096 KB Output is correct
52 Correct 105 ms 22100 KB Output is correct
53 Correct 44 ms 12300 KB Output is correct
54 Correct 44 ms 12116 KB Output is correct
55 Correct 95 ms 22100 KB Output is correct
56 Correct 104 ms 22088 KB Output is correct
57 Correct 44 ms 12116 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 24 ms 5724 KB Output is correct
62 Correct 103 ms 22076 KB Output is correct
63 Correct 98 ms 22100 KB Output is correct
64 Correct 105 ms 22032 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 24 ms 5772 KB Output is correct
67 Correct 99 ms 22032 KB Output is correct
68 Correct 98 ms 22016 KB Output is correct
69 Correct 103 ms 22100 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 412 KB Output is correct
73 Correct 24 ms 5748 KB Output is correct
74 Correct 102 ms 22100 KB Output is correct
75 Correct 100 ms 22100 KB Output is correct
76 Correct 109 ms 22352 KB Output is correct
77 Correct 108 ms 22100 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 2 ms 936 KB Output is correct
81 Correct 59 ms 12288 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 25 ms 5800 KB Output is correct
86 Correct 45 ms 12044 KB Output is correct
87 Correct 45 ms 12220 KB Output is correct
88 Correct 48 ms 12116 KB Output is correct
89 Correct 44 ms 12112 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 2 ms 604 KB Output is correct
93 Correct 43 ms 8276 KB Output is correct
94 Correct 0 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 392 KB Output is correct
97 Correct 11 ms 2396 KB Output is correct
98 Correct 41 ms 8212 KB Output is correct
99 Correct 43 ms 8272 KB Output is correct
100 Correct 41 ms 8280 KB Output is correct
101 Correct 41 ms 8272 KB Output is correct
102 Correct 40 ms 8276 KB Output is correct
103 Correct 39 ms 8212 KB Output is correct
104 Correct 42 ms 8212 KB Output is correct
105 Correct 44 ms 8208 KB Output is correct