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Submission #302530

# Submission time Handle Problem Language Result Execution time Memory
302530 2020-09-18T18:27:56 Z REALITYNB Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 263 ms 26384 KB 
#include <bits/stdc++.h> 
#include "supertrees.h" 
#define all(a) a.begin(),a.end() 
using namespace std; 
const int mxn= 1e3+1  ; 
vector<int> adj[mxn] , adjj[mxn] , one  , mn ; 
void dfs(int i , vector<int>& a ){
	a[i]=1 ;
	for(int& x : adj[i]){
		if(a[x]) continue ; 
		dfs(x,a) ; 
	}
}
int cnt = 0 ; 
void dfss(int i , vector<int>& a){
	a[i] = 1 ;
	++cnt ;  
	if(adjj[i].size()==1) one.push_back(i) ; 
	for(int& x : adjj[i]){
		if(a[x]) continue ; 
		dfss(x,a) ; 
	}
}
vector<vector<int>> ppp; 
bool check(int i , vector<int>& a){
	a[i] =1 ; 
	for(int j=0;j<mn.size();j++){
		if(ppp[i][j]==2&&mn[j]!=2) return 1 ; 
		if(mn[j]==2&&ppp[i][j]!=2) return 1 ; 
	}
	bool b = 0 ; 
	for(int& x : adj[i]){
		if(a[x]) continue ; 
		b|=check(x,a) ; 
	}	
	return b ; 

}
int construct(vector<vector<int>> p){
	ppp= p ; 
	int n =p.size() ;
	vector<int> the(n) ; 
	for(int i=0;i<n;i++){
		bool flg = 0  ; 
		vector<int> x=p[i] ; 
		for(int j=0;j<i;j++){
			if(x[j]==1){
				adj[i].push_back(j) ; 
				flg = 1 ; 
				break ; 
			}
		}
		if(flg) continue ;
		//cout <<i << endl ; 
		the[i] =1 ; 
		for(int j=i+1;j<n;j++) if(x[j]==1) adj[i].push_back(j) ; 
	} 
	for(int i=0;i<n;i++){
		vector<int> vis(n) ; 
		dfs(i,vis) ;
		for(int j=0;j<n;j++){
			if(vis[j]==1&&p[i][j]==1) continue ; 
			if(vis[j]==0&&p[i][j]==0) continue ; 
			if(p[i][j]==2&&vis[j]==0) continue ; 
			return 0 ; 
		}
	}
	for(int i=0;i<n;i++){
		if(the[i]==0) continue ; 
		for(int j=i-1;j>-1;j--){
			if(the[j]==0) continue  ; 
			if(p[i][j]==2){
				adjj[i].push_back(j) ; 
				break ; 
			}
		}
		for(int j=i+1;j<n;j++){
			if(the[j]==0) continue ; 
			if(p[i][j]==2){
				adjj[i].push_back(j) ; 
				break ; 
			}
		}
	}

	map<vector<int>,int> pp ; 
	for(int i=0;i<n;i++){
		if(the[i]==0) continue ; 
	//	if(vis[i]) continue ; 
			vector<int> vis(n); 
		one.erase(one.begin(),one.end()) ;
		cnt= 0 ; 
		dfss(i,vis) ; 
		if(cnt==2) return 0 ; 
		sort(all(one)) ; 
		for(int j=0;j<n;j++){
			if(i==j) continue ; 
			/*if(vis[j]&&p[i][j]==0)return 0 ; 
			if(vis[j]==0&&p[i][j]) return 0 ; */
			if(the[j]==0) continue ; 
			if(vis[j]==1&&p[i][j]==2) continue ; 
			if(vis[j]==0&&p[i][j]==0) continue ; 
			if(vis[j]==0&&p[i][j]==1) continue ;
			return 0 ; 
			//cout << i << " " << j << endl ; 
		}
		if(one.size()==0) continue ; 
		if(one.size()==1) continue ; 
		if(one.size()>2) return 0 ; 
		if(pp[{one[0],one[1]}]) continue ;
			pp[{one[0],one[1]}]=1 ; 
			adjj[one[1]].push_back(one[0]) ; 
			adjj[one[0]].push_back(one[1])  ;
		}
	vector<int> viss(n) ; 
	for(int i=0;i<n;i++){
		if(viss[i]==1) continue ; 
		mn = p[i] ; 
		bool f = check(i,viss) ; 
		if(f) return 0 ; 
	}
	vector<vector<int>> ans ; 
	for(int i=0;i<n;i++) for(int& x : adjj[i]) adj[i].push_back(x) ; 
	for(int i=0;i<n;i++){
		vector<int> row(n) ; 
		for(int& x : adj[i]) row[x]= 1 ; 
		ans.push_back(row) ; 
	}
	build(ans) ; 
	return 1 ; 
}

Compilation message

supertrees.cpp: In function 'bool check(int, std::vector<int>&)':
supertrees.cpp:27:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for(int j=0;j<mn.size();j++){
      |              ~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 248 ms 26104 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 248 ms 26104 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1408 KB Output is correct
13 Correct 244 ms 26232 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 108 ms 12280 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 60 ms 6904 KB Output is correct
21 Correct 241 ms 26104 KB Output is correct
22 Correct 234 ms 26104 KB Output is correct
23 Correct 254 ms 26232 KB Output is correct
24 Correct 240 ms 26232 KB Output is correct
25 Correct 98 ms 12408 KB Output is correct
26 Correct 94 ms 12412 KB Output is correct
27 Correct 258 ms 26120 KB Output is correct
28 Correct 240 ms 26236 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 10 ms 1408 KB Output is correct
9 Correct 235 ms 26248 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 263 ms 26372 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 107 ms 12284 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 60 ms 6904 KB Output is correct
22 Correct 242 ms 26104 KB Output is correct
23 Correct 238 ms 26232 KB Output is correct
24 Correct 262 ms 26360 KB Output is correct
25 Correct 101 ms 12280 KB Output is correct
26 Correct 100 ms 12280 KB Output is correct
27 Correct 242 ms 26232 KB Output is correct
28 Correct 262 ms 26232 KB Output is correct
29 Correct 100 ms 12152 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 59 ms 7032 KB Output is correct
5 Correct 235 ms 26104 KB Output is correct
6 Correct 238 ms 26104 KB Output is correct
7 Correct 250 ms 26236 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 64 ms 6904 KB Output is correct
10 Correct 242 ms 26232 KB Output is correct
11 Correct 238 ms 26232 KB Output is correct
12 Correct 256 ms 26232 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 60 ms 6904 KB Output is correct
17 Correct 249 ms 26104 KB Output is correct
18 Correct 245 ms 26360 KB Output is correct
19 Correct 245 ms 26104 KB Output is correct
20 Correct 244 ms 26384 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 248 ms 26104 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1408 KB Output is correct
13 Correct 244 ms 26232 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 108 ms 12280 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 60 ms 6904 KB Output is correct
21 Correct 241 ms 26104 KB Output is correct
22 Correct 234 ms 26104 KB Output is correct
23 Correct 254 ms 26232 KB Output is correct
24 Correct 240 ms 26232 KB Output is correct
25 Correct 98 ms 12408 KB Output is correct
26 Correct 94 ms 12412 KB Output is correct
27 Correct 258 ms 26120 KB Output is correct
28 Correct 240 ms 26236 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 10 ms 1408 KB Output is correct
37 Correct 235 ms 26248 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 263 ms 26372 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 107 ms 12284 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 512 KB Output is correct
49 Correct 60 ms 6904 KB Output is correct
50 Correct 242 ms 26104 KB Output is correct
51 Correct 238 ms 26232 KB Output is correct
52 Correct 262 ms 26360 KB Output is correct
53 Correct 101 ms 12280 KB Output is correct
54 Correct 100 ms 12280 KB Output is correct
55 Correct 242 ms 26232 KB Output is correct
56 Correct 262 ms 26232 KB Output is correct
57 Correct 100 ms 12152 KB Output is correct
58 Correct 1 ms 416 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 5 ms 896 KB Output is correct
61 Correct 106 ms 12192 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 65 ms 7032 KB Output is correct
66 Correct 100 ms 12280 KB Output is correct
67 Correct 100 ms 12152 KB Output is correct
68 Correct 99 ms 12408 KB Output is correct
69 Correct 102 ms 12152 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 248 ms 26104 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1408 KB Output is correct
13 Correct 244 ms 26232 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 108 ms 12280 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 60 ms 6904 KB Output is correct
21 Correct 241 ms 26104 KB Output is correct
22 Correct 234 ms 26104 KB Output is correct
23 Correct 254 ms 26232 KB Output is correct
24 Correct 240 ms 26232 KB Output is correct
25 Correct 98 ms 12408 KB Output is correct
26 Correct 94 ms 12412 KB Output is correct
27 Correct 258 ms 26120 KB Output is correct
28 Correct 240 ms 26236 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 10 ms 1408 KB Output is correct
37 Correct 235 ms 26248 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 263 ms 26372 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 107 ms 12284 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 512 KB Output is correct
49 Correct 60 ms 6904 KB Output is correct
50 Correct 242 ms 26104 KB Output is correct
51 Correct 238 ms 26232 KB Output is correct
52 Correct 262 ms 26360 KB Output is correct
53 Correct 101 ms 12280 KB Output is correct
54 Correct 100 ms 12280 KB Output is correct
55 Correct 242 ms 26232 KB Output is correct
56 Correct 262 ms 26232 KB Output is correct
57 Correct 100 ms 12152 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 0 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 59 ms 7032 KB Output is correct
62 Correct 235 ms 26104 KB Output is correct
63 Correct 238 ms 26104 KB Output is correct
64 Correct 250 ms 26236 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 64 ms 6904 KB Output is correct
67 Correct 242 ms 26232 KB Output is correct
68 Correct 238 ms 26232 KB Output is correct
69 Correct 256 ms 26232 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 1 ms 384 KB Output is correct
72 Correct 1 ms 512 KB Output is correct
73 Correct 60 ms 6904 KB Output is correct
74 Correct 249 ms 26104 KB Output is correct
75 Correct 245 ms 26360 KB Output is correct
76 Correct 245 ms 26104 KB Output is correct
77 Correct 244 ms 26384 KB Output is correct
78 Correct 1 ms 416 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 5 ms 896 KB Output is correct
81 Correct 106 ms 12192 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 1 ms 384 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 65 ms 7032 KB Output is correct
86 Correct 100 ms 12280 KB Output is correct
87 Correct 100 ms 12152 KB Output is correct
88 Correct 99 ms 12408 KB Output is correct
89 Correct 102 ms 12152 KB Output is correct
90 Correct 1 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 5 ms 896 KB Output is correct
93 Correct 113 ms 12408 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 1 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 24 ms 3328 KB Output is correct
98 Correct 117 ms 12152 KB Output is correct
99 Correct 96 ms 12280 KB Output is correct
100 Correct 94 ms 12280 KB Output is correct
101 Correct 95 ms 12152 KB Output is correct
102 Correct 106 ms 12156 KB Output is correct
103 Correct 110 ms 12412 KB Output is correct
104 Correct 101 ms 12280 KB Output is correct
105 Correct 106 ms 12280 KB Output is correct