oj.uz

Submission #928173

# Submission time Handle Problem Language Result Execution time Memory
928173 2024-02-16T02:47:07 Z AlphaMale06 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 188 ms 23624 KB 
#include<bits/stdc++.h>
//#include "supertrees.h"

using namespace std;

#define pb push_back

void check(bool cond, string message);
void build(vector<vector<int>> _b);

const int N = 1005;
int par[N];
int sz[N];
vector<int> comp[N];
vector<vector<int>> answer;

void make(int v){
    par[v]=v;
    sz[v]=1;
}

int find(int v){
    if(par[v]==v)return v;
    return par[v]=find(par[v]);
}

void merge(int u, int v){
    u=find(u);
    v=find(v);
    if(u==v)return;
    if(sz[u]<sz[v])swap(u, v);
    sz[u]+=sz[v];
    par[v]=u;
}

int construct(vector<vector<int>> p) {
	int n = p.size();
	answer.resize(n);
	for(int i=0; i<n; i++){
        answer[i].resize(n);
        for(int j=0; j<n; j++)answer[i][j]=0;
	}
    for(int i=0; i<n; i++)make(i);
    for(int i=0; i< n; i++){
        for(int j=0; j< n; j++){
            if(p[i][j]!=0)merge(i, j);
            if(p[i][j]==3)return 0;
        }
    }
    for(int i=0; i< n; i++){
        for(int j=0; j< n; j++){
            if(p[i][j]==0 && find(i)==find(j))return 0;
        }
    }
    for(int i=0; i< n; i++){
        comp[find(i)].pb(i);
    }
    for(int i=0; i < n; i++)make(i);
    for(vector<int> cmp : comp){
        if(!cmp.size())continue;
        for(int e : cmp){
            for(int i : cmp){
                if(p[e][i]==1){
                    merge(e, i);
                }
            }
        }
        for(int e : cmp){
            for(int i : cmp){
                if(p[e][i]==2 && find(e)==find(i))return 0;
            }
        }
        for(int e : cmp){
            int f=find(e);
            if(f!=e){
                answer[e][f]=1;
                answer[f][e]=1;
            }
        }
        vector<int> vc;
        int cnt=1;
        for(int e : cmp)vc.pb(find(e));
        sort(vc.begin(), vc.end());
        for(int i=1; i<vc.size(); i++){
            if(vc[i]!=vc[i-1]){
                cnt++;
                answer[vc[i]][vc[i-1]]=1;
                answer[vc[i-1]][vc[i]]=1;
            }
            if(vc.back()!=vc[0]){
                answer[vc.back()][vc[0]]=1;
                answer[vc[0]][vc.back()]=1;
            }
        }
        if(cnt==2 && p[cmp[0]][cmp[1]]==2)return 0;
    }
    build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:84:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for(int i=1; i<vc.size(); i++){
      |                      ~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 154 ms 22028 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 154 ms 22028 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1112 KB Output is correct
13 Correct 148 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 70 ms 12296 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 45 ms 5848 KB Output is correct
21 Correct 157 ms 22100 KB Output is correct
22 Correct 150 ms 22100 KB Output is correct
23 Correct 165 ms 22024 KB Output is correct
24 Correct 149 ms 22100 KB Output is correct
25 Correct 65 ms 12068 KB Output is correct
26 Correct 60 ms 12116 KB Output is correct
27 Correct 163 ms 22100 KB Output is correct
28 Correct 150 ms 22120 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 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 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 6 ms 1372 KB Output is correct
9 Correct 149 ms 23624 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1372 KB Output is correct
13 Correct 157 ms 23280 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 460 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 71 ms 13324 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 38 ms 6268 KB Output is correct
22 Correct 157 ms 23332 KB Output is correct
23 Correct 152 ms 23484 KB Output is correct
24 Correct 158 ms 23380 KB Output is correct
25 Correct 62 ms 13856 KB Output is correct
26 Correct 62 ms 13396 KB Output is correct
27 Correct 151 ms 23284 KB Output is correct
28 Correct 188 ms 23492 KB Output is correct
29 Correct 62 ms 13508 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 38 ms 5832 KB Output is correct
5 Correct 156 ms 22096 KB Output is correct
6 Correct 153 ms 22100 KB Output is correct
7 Correct 159 ms 22356 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 45 ms 5712 KB Output is correct
10 Correct 170 ms 22056 KB Output is correct
11 Correct 187 ms 22100 KB Output is correct
12 Correct 159 ms 22100 KB Output is correct
13 Correct 0 ms 600 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 39 ms 5756 KB Output is correct
17 Correct 151 ms 22072 KB Output is correct
18 Correct 155 ms 22048 KB Output is correct
19 Correct 151 ms 22064 KB Output is correct
20 Correct 150 ms 22096 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 154 ms 22028 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1112 KB Output is correct
13 Correct 148 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 70 ms 12296 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 45 ms 5848 KB Output is correct
21 Correct 157 ms 22100 KB Output is correct
22 Correct 150 ms 22100 KB Output is correct
23 Correct 165 ms 22024 KB Output is correct
24 Correct 149 ms 22100 KB Output is correct
25 Correct 65 ms 12068 KB Output is correct
26 Correct 60 ms 12116 KB Output is correct
27 Correct 163 ms 22100 KB Output is correct
28 Correct 150 ms 22120 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 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 6 ms 1372 KB Output is correct
37 Correct 149 ms 23624 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1372 KB Output is correct
41 Correct 157 ms 23280 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 0 ms 460 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 71 ms 13324 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 38 ms 6268 KB Output is correct
50 Correct 157 ms 23332 KB Output is correct
51 Correct 152 ms 23484 KB Output is correct
52 Correct 158 ms 23380 KB Output is correct
53 Correct 62 ms 13856 KB Output is correct
54 Correct 62 ms 13396 KB Output is correct
55 Correct 151 ms 23284 KB Output is correct
56 Correct 188 ms 23492 KB Output is correct
57 Correct 62 ms 13508 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 464 KB Output is correct
60 Correct 3 ms 860 KB Output is correct
61 Correct 71 ms 13392 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 344 KB Output is correct
65 Correct 38 ms 6184 KB Output is correct
66 Correct 69 ms 13392 KB Output is correct
67 Correct 62 ms 13392 KB Output is correct
68 Correct 61 ms 13348 KB Output is correct
69 Correct 61 ms 13548 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 154 ms 22028 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1112 KB Output is correct
13 Correct 148 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 70 ms 12296 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 45 ms 5848 KB Output is correct
21 Correct 157 ms 22100 KB Output is correct
22 Correct 150 ms 22100 KB Output is correct
23 Correct 165 ms 22024 KB Output is correct
24 Correct 149 ms 22100 KB Output is correct
25 Correct 65 ms 12068 KB Output is correct
26 Correct 60 ms 12116 KB Output is correct
27 Correct 163 ms 22100 KB Output is correct
28 Correct 150 ms 22120 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 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 6 ms 1372 KB Output is correct
37 Correct 149 ms 23624 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1372 KB Output is correct
41 Correct 157 ms 23280 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 0 ms 460 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 71 ms 13324 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 38 ms 6268 KB Output is correct
50 Correct 157 ms 23332 KB Output is correct
51 Correct 152 ms 23484 KB Output is correct
52 Correct 158 ms 23380 KB Output is correct
53 Correct 62 ms 13856 KB Output is correct
54 Correct 62 ms 13396 KB Output is correct
55 Correct 151 ms 23284 KB Output is correct
56 Correct 188 ms 23492 KB Output is correct
57 Correct 62 ms 13508 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 38 ms 5832 KB Output is correct
62 Correct 156 ms 22096 KB Output is correct
63 Correct 153 ms 22100 KB Output is correct
64 Correct 159 ms 22356 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 45 ms 5712 KB Output is correct
67 Correct 170 ms 22056 KB Output is correct
68 Correct 187 ms 22100 KB Output is correct
69 Correct 159 ms 22100 KB Output is correct
70 Correct 0 ms 600 KB Output is correct
71 Correct 1 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 39 ms 5756 KB Output is correct
74 Correct 151 ms 22072 KB Output is correct
75 Correct 155 ms 22048 KB Output is correct
76 Correct 151 ms 22064 KB Output is correct
77 Correct 150 ms 22096 KB Output is correct
78 Correct 1 ms 348 KB Output is correct
79 Correct 0 ms 464 KB Output is correct
80 Correct 3 ms 860 KB Output is correct
81 Correct 71 ms 13392 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 344 KB Output is correct
85 Correct 38 ms 6184 KB Output is correct
86 Correct 69 ms 13392 KB Output is correct
87 Correct 62 ms 13392 KB Output is correct
88 Correct 61 ms 13348 KB Output is correct
89 Correct 61 ms 13548 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 1 ms 348 KB Output is correct
92 Correct 3 ms 856 KB Output is correct
93 Correct 62 ms 13396 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 15 ms 3868 KB Output is correct
98 Correct 61 ms 13560 KB Output is correct
99 Correct 61 ms 13396 KB Output is correct
100 Correct 60 ms 13392 KB Output is correct
101 Correct 59 ms 13392 KB Output is correct
102 Correct 59 ms 13388 KB Output is correct
103 Correct 59 ms 13396 KB Output is correct
104 Correct 59 ms 13368 KB Output is correct
105 Correct 64 ms 13516 KB Output is correct