oj.uz

Submission #397154

# Submission time Handle Problem Language Result Execution time Memory
397154 2021-05-01T15:01:05 Z Antekb Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 260 ms 23996 KB 
#include "supertrees.h"
#include <vector>
using namespace std;

int construct(vector<vector<int>> p) {
	int n = p.size();
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
			if(p[i][j]==3){
				return 0;
			}
		}
	}
	int vis[n];
	for(int i=0; i<n; i++)vis[i]=0;
	vector<vector<int>> answer;
	for (int i = 0; i < n; i++) {
		vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	for(int i=0; i<n; i++){
		if(!vis[i]){
			vector<int> V;
			for(int j=0; j<n; j++){
				if(p[i][j])V.push_back(j);
			}
			for(int u:V){
				for(int v:V){
					if(!p[u][v]){
						return 0;
					}
				}
			}
			for(int u:V){
				int cnt=0;
				for(int v=0;v<n; v++){
					if(p[u][v]){
						cnt++;
					}
				}
				if(cnt!=V.size())return 0;
			}
			for(int u:V){
				for(int v:V){
					if(v==u){
						break;
					}
					if(p[u][v]==1){
						vis[u]=vis[v];
					}
				}
				if(vis[u]==0){
					vis[u]=u+1;
				}
			}
			for(int u:V){
				for(int v:V){
					if((p[u][v]==1) ^ (vis[u]==vis[v]))return 0;
				}
			}
			vector<int> V2;
			for(int u:V){
				if(vis[u]!=u+1)answer[u][vis[u]-1]=1, answer[vis[u]-1][u]=1;
				else V2.push_back(u);
			}
			if(V2.size()==2)return 0;
			else if(V2.size()>2){
				for(int j=0; j<V2.size(); j++){
					answer[V2[j]][V2[(j+1)%V2.size()]]=1;
					answer[V2[(j+1)%V2.size()]][V2[j]]=1;
				}
			}
		}
	}
	build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:42:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     if(cnt!=V.size())return 0;
      |        ~~~^~~~~~~~~~
supertrees.cpp:69:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     for(int j=0; j<V2.size(); j++){
      |                  ~^~~~~~~~~~

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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1184 KB Output is correct
7 Correct 246 ms 21920 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1184 KB Output is correct
7 Correct 246 ms 21920 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 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 10 ms 1100 KB Output is correct
13 Correct 249 ms 22012 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 5 ms 844 KB Output is correct
17 Correct 117 ms 14068 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 6232 KB Output is correct
21 Correct 248 ms 23996 KB Output is correct
22 Correct 249 ms 23876 KB Output is correct
23 Correct 250 ms 23908 KB Output is correct
24 Correct 247 ms 23876 KB Output is correct
25 Correct 113 ms 14020 KB Output is correct
26 Correct 115 ms 13988 KB Output is correct
27 Correct 249 ms 23920 KB Output is correct
28 Correct 249 ms 23888 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 10 ms 1100 KB Output is correct
9 Correct 246 ms 22016 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1100 KB Output is correct
13 Correct 247 ms 22012 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 716 KB Output is correct
17 Correct 121 ms 12032 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 61 ms 5744 KB Output is correct
22 Correct 243 ms 22016 KB Output is correct
23 Correct 243 ms 22016 KB Output is correct
24 Correct 250 ms 22184 KB Output is correct
25 Correct 112 ms 12100 KB Output is correct
26 Correct 113 ms 12028 KB Output is correct
27 Correct 243 ms 23908 KB Output is correct
28 Correct 248 ms 23876 KB Output is correct
29 Correct 115 ms 14020 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 61 ms 5708 KB Output is correct
5 Correct 247 ms 21936 KB Output is correct
6 Correct 244 ms 21956 KB Output is correct
7 Correct 249 ms 22012 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 63 ms 5752 KB Output is correct
10 Correct 242 ms 21956 KB Output is correct
11 Correct 241 ms 21968 KB Output is correct
12 Correct 260 ms 22020 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 60 ms 5736 KB Output is correct
17 Correct 244 ms 22016 KB Output is correct
18 Correct 248 ms 21976 KB Output is correct
19 Correct 246 ms 22016 KB Output is correct
20 Correct 246 ms 22016 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1184 KB Output is correct
7 Correct 246 ms 21920 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 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 10 ms 1100 KB Output is correct
13 Correct 249 ms 22012 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 5 ms 844 KB Output is correct
17 Correct 117 ms 14068 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 6232 KB Output is correct
21 Correct 248 ms 23996 KB Output is correct
22 Correct 249 ms 23876 KB Output is correct
23 Correct 250 ms 23908 KB Output is correct
24 Correct 247 ms 23876 KB Output is correct
25 Correct 113 ms 14020 KB Output is correct
26 Correct 115 ms 13988 KB Output is correct
27 Correct 249 ms 23920 KB Output is correct
28 Correct 249 ms 23888 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 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1100 KB Output is correct
37 Correct 246 ms 22016 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1100 KB Output is correct
41 Correct 247 ms 22012 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 5 ms 716 KB Output is correct
45 Correct 121 ms 12032 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 61 ms 5744 KB Output is correct
50 Correct 243 ms 22016 KB Output is correct
51 Correct 243 ms 22016 KB Output is correct
52 Correct 250 ms 22184 KB Output is correct
53 Correct 112 ms 12100 KB Output is correct
54 Correct 113 ms 12028 KB Output is correct
55 Correct 243 ms 23908 KB Output is correct
56 Correct 248 ms 23876 KB Output is correct
57 Correct 115 ms 14020 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 5 ms 844 KB Output is correct
61 Correct 117 ms 14048 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 61 ms 6228 KB Output is correct
66 Correct 114 ms 14052 KB Output is correct
67 Correct 115 ms 14148 KB Output is correct
68 Correct 112 ms 14064 KB Output is correct
69 Correct 114 ms 14056 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 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1184 KB Output is correct
7 Correct 246 ms 21920 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 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 10 ms 1100 KB Output is correct
13 Correct 249 ms 22012 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 5 ms 844 KB Output is correct
17 Correct 117 ms 14068 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 6232 KB Output is correct
21 Correct 248 ms 23996 KB Output is correct
22 Correct 249 ms 23876 KB Output is correct
23 Correct 250 ms 23908 KB Output is correct
24 Correct 247 ms 23876 KB Output is correct
25 Correct 113 ms 14020 KB Output is correct
26 Correct 115 ms 13988 KB Output is correct
27 Correct 249 ms 23920 KB Output is correct
28 Correct 249 ms 23888 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 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1100 KB Output is correct
37 Correct 246 ms 22016 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1100 KB Output is correct
41 Correct 247 ms 22012 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 5 ms 716 KB Output is correct
45 Correct 121 ms 12032 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 61 ms 5744 KB Output is correct
50 Correct 243 ms 22016 KB Output is correct
51 Correct 243 ms 22016 KB Output is correct
52 Correct 250 ms 22184 KB Output is correct
53 Correct 112 ms 12100 KB Output is correct
54 Correct 113 ms 12028 KB Output is correct
55 Correct 243 ms 23908 KB Output is correct
56 Correct 248 ms 23876 KB Output is correct
57 Correct 115 ms 14020 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 61 ms 5708 KB Output is correct
62 Correct 247 ms 21936 KB Output is correct
63 Correct 244 ms 21956 KB Output is correct
64 Correct 249 ms 22012 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 63 ms 5752 KB Output is correct
67 Correct 242 ms 21956 KB Output is correct
68 Correct 241 ms 21968 KB Output is correct
69 Correct 260 ms 22020 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 204 KB Output is correct
72 Correct 1 ms 204 KB Output is correct
73 Correct 60 ms 5736 KB Output is correct
74 Correct 244 ms 22016 KB Output is correct
75 Correct 248 ms 21976 KB Output is correct
76 Correct 246 ms 22016 KB Output is correct
77 Correct 246 ms 22016 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 1 ms 204 KB Output is correct
80 Correct 5 ms 844 KB Output is correct
81 Correct 117 ms 14048 KB Output is correct
82 Correct 1 ms 204 KB Output is correct
83 Correct 1 ms 204 KB Output is correct
84 Correct 1 ms 204 KB Output is correct
85 Correct 61 ms 6228 KB Output is correct
86 Correct 114 ms 14052 KB Output is correct
87 Correct 115 ms 14148 KB Output is correct
88 Correct 112 ms 14064 KB Output is correct
89 Correct 114 ms 14056 KB Output is correct
90 Correct 1 ms 204 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 5 ms 588 KB Output is correct
93 Correct 113 ms 10100 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
95 Correct 1 ms 204 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 28 ms 2628 KB Output is correct
98 Correct 115 ms 10052 KB Output is correct
99 Correct 110 ms 10096 KB Output is correct
100 Correct 113 ms 10088 KB Output is correct
101 Correct 115 ms 10084 KB Output is correct
102 Correct 111 ms 10092 KB Output is correct
103 Correct 111 ms 10084 KB Output is correct
104 Correct 112 ms 10052 KB Output is correct
105 Correct 115 ms 10024 KB Output is correct