oj.uz

Submission #1041357

# Submission time Handle Problem Language Result Execution time Memory
1041357 2024-08-01T22:52:18 Z vjudge1 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 124 ms 24152 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 5 ms 1116 KB Output is correct
7 Correct 98 ms 22028 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 5 ms 1116 KB Output is correct
7 Correct 98 ms 22028 KB Output is correct
8 Correct 0 ms 344 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 4 ms 1168 KB Output is correct
13 Correct 94 ms 22096 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 916 KB Output is correct
17 Correct 58 ms 12308 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 5680 KB Output is correct
21 Correct 99 ms 22028 KB Output is correct
22 Correct 95 ms 22032 KB Output is correct
23 Correct 102 ms 22096 KB Output is correct
24 Correct 99 ms 22032 KB Output is correct
25 Correct 45 ms 12112 KB Output is correct
26 Correct 46 ms 12116 KB Output is correct
27 Correct 103 ms 22096 KB Output is correct
28 Correct 94 ms 22100 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 1324 KB Output is correct
9 Correct 94 ms 23952 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 1372 KB Output is correct
13 Correct 100 ms 24052 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 58 ms 14196 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 25 ms 6192 KB Output is correct
22 Correct 100 ms 23924 KB Output is correct
23 Correct 96 ms 24144 KB Output is correct
24 Correct 117 ms 24152 KB Output is correct
25 Correct 44 ms 14172 KB Output is correct
26 Correct 44 ms 14212 KB Output is correct
27 Correct 100 ms 24032 KB Output is correct
28 Correct 118 ms 24148 KB Output is correct
29 Correct 44 ms 14164 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 5748 KB Output is correct
5 Correct 98 ms 22100 KB Output is correct
6 Correct 95 ms 22100 KB Output is correct
7 Correct 104 ms 22172 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 29 ms 5744 KB Output is correct
10 Correct 98 ms 22012 KB Output is correct
11 Correct 124 ms 22096 KB Output is correct
12 Correct 107 ms 22100 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 24 ms 5772 KB Output is correct
17 Correct 101 ms 22152 KB Output is correct
18 Correct 100 ms 22100 KB Output is correct
19 Correct 97 ms 22100 KB Output is correct
20 Correct 103 ms 22092 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 5 ms 1116 KB Output is correct
7 Correct 98 ms 22028 KB Output is correct
8 Correct 0 ms 344 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 4 ms 1168 KB Output is correct
13 Correct 94 ms 22096 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 916 KB Output is correct
17 Correct 58 ms 12308 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 5680 KB Output is correct
21 Correct 99 ms 22028 KB Output is correct
22 Correct 95 ms 22032 KB Output is correct
23 Correct 102 ms 22096 KB Output is correct
24 Correct 99 ms 22032 KB Output is correct
25 Correct 45 ms 12112 KB Output is correct
26 Correct 46 ms 12116 KB Output is correct
27 Correct 103 ms 22096 KB Output is correct
28 Correct 94 ms 22100 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 1324 KB Output is correct
37 Correct 94 ms 23952 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 1372 KB Output is correct
41 Correct 100 ms 24052 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 58 ms 14196 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 25 ms 6192 KB Output is correct
50 Correct 100 ms 23924 KB Output is correct
51 Correct 96 ms 24144 KB Output is correct
52 Correct 117 ms 24152 KB Output is correct
53 Correct 44 ms 14172 KB Output is correct
54 Correct 44 ms 14212 KB Output is correct
55 Correct 100 ms 24032 KB Output is correct
56 Correct 118 ms 24148 KB Output is correct
57 Correct 44 ms 14164 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 2 ms 860 KB Output is correct
61 Correct 57 ms 14200 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 1 ms 344 KB Output is correct
65 Correct 25 ms 6392 KB Output is correct
66 Correct 47 ms 14080 KB Output is correct
67 Correct 46 ms 14076 KB Output is correct
68 Correct 45 ms 14208 KB Output is correct
69 Correct 46 ms 14164 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 5 ms 1116 KB Output is correct
7 Correct 98 ms 22028 KB Output is correct
8 Correct 0 ms 344 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 4 ms 1168 KB Output is correct
13 Correct 94 ms 22096 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 916 KB Output is correct
17 Correct 58 ms 12308 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 5680 KB Output is correct
21 Correct 99 ms 22028 KB Output is correct
22 Correct 95 ms 22032 KB Output is correct
23 Correct 102 ms 22096 KB Output is correct
24 Correct 99 ms 22032 KB Output is correct
25 Correct 45 ms 12112 KB Output is correct
26 Correct 46 ms 12116 KB Output is correct
27 Correct 103 ms 22096 KB Output is correct
28 Correct 94 ms 22100 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 1324 KB Output is correct
37 Correct 94 ms 23952 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 1372 KB Output is correct
41 Correct 100 ms 24052 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 58 ms 14196 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 25 ms 6192 KB Output is correct
50 Correct 100 ms 23924 KB Output is correct
51 Correct 96 ms 24144 KB Output is correct
52 Correct 117 ms 24152 KB Output is correct
53 Correct 44 ms 14172 KB Output is correct
54 Correct 44 ms 14212 KB Output is correct
55 Correct 100 ms 24032 KB Output is correct
56 Correct 118 ms 24148 KB Output is correct
57 Correct 44 ms 14164 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 5748 KB Output is correct
62 Correct 98 ms 22100 KB Output is correct
63 Correct 95 ms 22100 KB Output is correct
64 Correct 104 ms 22172 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 29 ms 5744 KB Output is correct
67 Correct 98 ms 22012 KB Output is correct
68 Correct 124 ms 22096 KB Output is correct
69 Correct 107 ms 22100 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 24 ms 5772 KB Output is correct
74 Correct 101 ms 22152 KB Output is correct
75 Correct 100 ms 22100 KB Output is correct
76 Correct 97 ms 22100 KB Output is correct
77 Correct 103 ms 22092 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 2 ms 860 KB Output is correct
81 Correct 57 ms 14200 KB Output is correct
82 Correct 1 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 1 ms 344 KB Output is correct
85 Correct 25 ms 6392 KB Output is correct
86 Correct 47 ms 14080 KB Output is correct
87 Correct 46 ms 14076 KB Output is correct
88 Correct 45 ms 14208 KB Output is correct
89 Correct 46 ms 14164 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 2 ms 604 KB Output is correct
93 Correct 42 ms 10112 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 348 KB Output is correct
97 Correct 10 ms 2908 KB Output is correct
98 Correct 42 ms 10068 KB Output is correct
99 Correct 42 ms 10100 KB Output is correct
100 Correct 42 ms 10064 KB Output is correct
101 Correct 40 ms 10072 KB Output is correct
102 Correct 40 ms 10072 KB Output is correct
103 Correct 41 ms 10052 KB Output is correct
104 Correct 41 ms 10160 KB Output is correct
105 Correct 55 ms 10068 KB Output is correct