oj.uz

Submission #471365

# Submission time Handle Problem Language Result Execution time Memory
471365 2021-09-08T15:17:31 Z jazzup Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 284 ms 24272 KB 
#include "supertrees.h"
#include <vector>
#include <cstdio>
#include <algorithm>
#include <set>
using namespace std;

int par[1010];
vector<int> heads[1000];
vector<int>::iterator it;

int findPar(int n){
	if(par[n]==n)return n;

	return par[n]=findPar(par[n]);
}

vector<vector<int> > answer;

int construct(vector<vector<int> > p) {
	int n = p.size();
	for(int i=0;i<=n;i++){
		par[i]=i;
	}
	
	

	for(int i=0;i<n;i++){
		vector<int> vv;
		answer.push_back(vv);
		for(int j=0;j<n;j++){
			answer[i].push_back(0);
		}
	}

	for(int i=0;i<n-1;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]!=p[j][i])return 0;
		}
	}
	
	for(int i=0;i<n-1;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]==3)return 0;

			if(p[i][j]==1){
				if(findPar(i)<findPar(j)){
					par[findPar(j)]=findPar(i);
					answer[j][findPar(j)]=1;
					answer[findPar(j)][j]=1;
				}
				else if(findPar(i)>findPar(j)){
					par[findPar(i)]=findPar(j);
					answer[i][findPar(i)]=1;
					answer[findPar(i)][i]=1;
				}
			}
		}
	}

	for(int i=0;i<n-1;i++){
		for(int j=i+1;j<n;j++){
			// if(i==j)continue;
			if(p[i][j]==2){

				if(findPar(i)<findPar(j)){
					par[findPar(j)]=findPar(i);
					heads[findPar(i)].push_back(i);
					heads[findPar(j)].push_back(j);
				}
				else if(findPar(i)>findPar(j)){
					par[findPar(i)]=findPar(j);
					heads[findPar(i)].push_back(i);
					heads[findPar(j)].push_back(j);
				}

			}
		}
	}

	for(int h=0;h<n;h++){
		sort(heads[h].begin(),heads[h].end());
		it=unique(heads[h].begin(),heads[h].end());
		heads[h].resize(distance(heads[h].begin(),it));
		if(!heads[h].empty()){
			for(int i=0;i<heads[h].size()-1;i++){
				answer[heads[h][i]][heads[h][i+1]]=1;
				answer[heads[h][i+1]][heads[h][i]]=1;
				// printf("%d ",heads[h][i]);
			}

		
			answer[heads[h][heads[h].size()-1]][heads[h][0]]=1;
			answer[heads[h][0]][heads[h][heads[h].size()-1]]=1;
		}

		if(heads[h].size()==2)return 0;
		// printf("\n");

	}

	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(i==j)continue;
			else if(p[i][j]==0){
				if(findPar(i)==findPar(j)){
					return 0;
				}
			}
		}
	}

	build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:86:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |    for(int i=0;i<heads[h].size()-1;i++){
      |                ~^~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 11 ms 1296 KB Output is correct
7 Correct 277 ms 24084 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 11 ms 1296 KB Output is correct
7 Correct 277 ms 24084 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1228 KB Output is correct
13 Correct 257 ms 24104 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 131 ms 14124 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 69 ms 6260 KB Output is correct
21 Correct 253 ms 24068 KB Output is correct
22 Correct 269 ms 24272 KB Output is correct
23 Correct 265 ms 24060 KB Output is correct
24 Correct 256 ms 24104 KB Output is correct
25 Correct 130 ms 14128 KB Output is correct
26 Correct 112 ms 14196 KB Output is correct
27 Correct 263 ms 24060 KB Output is correct
28 Correct 284 ms 24132 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 11 ms 1316 KB Output is correct
9 Correct 275 ms 24172 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1316 KB Output is correct
13 Correct 260 ms 24056 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 304 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 131 ms 14132 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 64 ms 6264 KB Output is correct
22 Correct 259 ms 24068 KB Output is correct
23 Correct 258 ms 24068 KB Output is correct
24 Correct 267 ms 24132 KB Output is correct
25 Correct 117 ms 14276 KB Output is correct
26 Correct 116 ms 14204 KB Output is correct
27 Correct 262 ms 24040 KB Output is correct
28 Correct 279 ms 24068 KB Output is correct
29 Correct 116 ms 14204 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 66 ms 6256 KB Output is correct
5 Correct 262 ms 24132 KB Output is correct
6 Correct 260 ms 24004 KB Output is correct
7 Correct 269 ms 24156 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 66 ms 6264 KB Output is correct
10 Correct 253 ms 24056 KB Output is correct
11 Correct 263 ms 24056 KB Output is correct
12 Correct 268 ms 24156 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 73 ms 6272 KB Output is correct
17 Correct 253 ms 24188 KB Output is correct
18 Correct 260 ms 24132 KB Output is correct
19 Correct 266 ms 24060 KB Output is correct
20 Correct 251 ms 24044 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 11 ms 1296 KB Output is correct
7 Correct 277 ms 24084 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1228 KB Output is correct
13 Correct 257 ms 24104 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 131 ms 14124 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 69 ms 6260 KB Output is correct
21 Correct 253 ms 24068 KB Output is correct
22 Correct 269 ms 24272 KB Output is correct
23 Correct 265 ms 24060 KB Output is correct
24 Correct 256 ms 24104 KB Output is correct
25 Correct 130 ms 14128 KB Output is correct
26 Correct 112 ms 14196 KB Output is correct
27 Correct 263 ms 24060 KB Output is correct
28 Correct 284 ms 24132 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 11 ms 1316 KB Output is correct
37 Correct 275 ms 24172 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 11 ms 1316 KB Output is correct
41 Correct 260 ms 24056 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 0 ms 304 KB Output is correct
44 Correct 6 ms 844 KB Output is correct
45 Correct 131 ms 14132 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 64 ms 6264 KB Output is correct
50 Correct 259 ms 24068 KB Output is correct
51 Correct 258 ms 24068 KB Output is correct
52 Correct 267 ms 24132 KB Output is correct
53 Correct 117 ms 14276 KB Output is correct
54 Correct 116 ms 14204 KB Output is correct
55 Correct 262 ms 24040 KB Output is correct
56 Correct 279 ms 24068 KB Output is correct
57 Correct 116 ms 14204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 308 KB Output is correct
60 Correct 6 ms 844 KB Output is correct
61 Correct 143 ms 14204 KB Output is correct
62 Correct 0 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 308 KB Output is correct
65 Correct 67 ms 6272 KB Output is correct
66 Correct 120 ms 14088 KB Output is correct
67 Correct 115 ms 14148 KB Output is correct
68 Correct 118 ms 14208 KB Output is correct
69 Correct 112 ms 14208 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 11 ms 1296 KB Output is correct
7 Correct 277 ms 24084 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1228 KB Output is correct
13 Correct 257 ms 24104 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 131 ms 14124 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 69 ms 6260 KB Output is correct
21 Correct 253 ms 24068 KB Output is correct
22 Correct 269 ms 24272 KB Output is correct
23 Correct 265 ms 24060 KB Output is correct
24 Correct 256 ms 24104 KB Output is correct
25 Correct 130 ms 14128 KB Output is correct
26 Correct 112 ms 14196 KB Output is correct
27 Correct 263 ms 24060 KB Output is correct
28 Correct 284 ms 24132 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 11 ms 1316 KB Output is correct
37 Correct 275 ms 24172 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 11 ms 1316 KB Output is correct
41 Correct 260 ms 24056 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 0 ms 304 KB Output is correct
44 Correct 6 ms 844 KB Output is correct
45 Correct 131 ms 14132 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 64 ms 6264 KB Output is correct
50 Correct 259 ms 24068 KB Output is correct
51 Correct 258 ms 24068 KB Output is correct
52 Correct 267 ms 24132 KB Output is correct
53 Correct 117 ms 14276 KB Output is correct
54 Correct 116 ms 14204 KB Output is correct
55 Correct 262 ms 24040 KB Output is correct
56 Correct 279 ms 24068 KB Output is correct
57 Correct 116 ms 14204 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 0 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 66 ms 6256 KB Output is correct
62 Correct 262 ms 24132 KB Output is correct
63 Correct 260 ms 24004 KB Output is correct
64 Correct 269 ms 24156 KB Output is correct
65 Correct 0 ms 204 KB Output is correct
66 Correct 66 ms 6264 KB Output is correct
67 Correct 253 ms 24056 KB Output is correct
68 Correct 263 ms 24056 KB Output is correct
69 Correct 268 ms 24156 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 308 KB Output is correct
72 Correct 1 ms 204 KB Output is correct
73 Correct 73 ms 6272 KB Output is correct
74 Correct 253 ms 24188 KB Output is correct
75 Correct 260 ms 24132 KB Output is correct
76 Correct 266 ms 24060 KB Output is correct
77 Correct 251 ms 24044 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 1 ms 308 KB Output is correct
80 Correct 6 ms 844 KB Output is correct
81 Correct 143 ms 14204 KB Output is correct
82 Correct 0 ms 204 KB Output is correct
83 Correct 1 ms 204 KB Output is correct
84 Correct 1 ms 308 KB Output is correct
85 Correct 67 ms 6272 KB Output is correct
86 Correct 120 ms 14088 KB Output is correct
87 Correct 115 ms 14148 KB Output is correct
88 Correct 118 ms 14208 KB Output is correct
89 Correct 112 ms 14208 KB Output is correct
90 Correct 0 ms 204 KB Output is correct
91 Correct 1 ms 304 KB Output is correct
92 Correct 5 ms 844 KB Output is correct
93 Correct 117 ms 14204 KB Output is correct
94 Correct 0 ms 236 KB Output is correct
95 Correct 1 ms 204 KB Output is correct
96 Correct 0 ms 204 KB Output is correct
97 Correct 28 ms 3764 KB Output is correct
98 Correct 113 ms 14088 KB Output is correct
99 Correct 114 ms 14128 KB Output is correct
100 Correct 116 ms 14088 KB Output is correct
101 Correct 114 ms 14200 KB Output is correct
102 Correct 108 ms 14152 KB Output is correct
103 Correct 122 ms 14204 KB Output is correct
104 Correct 111 ms 14212 KB Output is correct
105 Correct 146 ms 14200 KB Output is correct