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Submission #300676

# Submission time Handle Problem Language Result Execution time Memory
300676 2020-09-17T11:46:43 Z errorgorn Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 293 ms 26232 KB 
#include "supertrees.h"

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ii pair<int,int>
#define fi first
#define se second

#define rep(x,s,e) for (auto x=(s)-((s)>(e));x!=(e)-((s)>(e));((s)<(e)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()

int n;
vector<vector<int> > arr;

bool vis[1005];
bool vis2[1005];
int comp[1005];
int subcomp[1005];

vector<vector<int> > ans;

int construct(std::vector<std::vector<int>> p) {
	n=p.size();
	arr=p;
	
	rep(x,0,n){
		rep(y,0,n) if (arr[x][y]==3) return 0;
	}
	
	rep(x,0,n){
		ans.push_back(vector<int>());
		rep(y,0,n) ans[x].push_back(0);
	}
	
	int idx=0;
	int idx2=0;
	rep(x,0,n) if (!vis[x]){
		vector<int> nodes;
		rep(y,0,n) if (arr[x][y] && !vis[y]){
			comp[y]=idx;
			vis[y]=true;
			nodes.push_back(y);
		}
		
		vector<vector<int> > comps;
		rep(y,0,sz(nodes)) if (!vis2[nodes[y]]){
			comps.push_back(vector<int>());
			
			rep(z,0,sz(nodes)) if (arr[nodes[y]][nodes[z]]==1 && !vis2[nodes[z]]){
				subcomp[nodes[z]]=idx2;
				vis2[nodes[z]]=true;
				comps.back().push_back(nodes[z]);
			}
			idx2++;
		}
		
		/*
		for (auto &it:comps){
			for (auto &iter:it) cout<<iter<<" "; cout<<endl;
		}
		*/
		
		for (auto &it:comps){
			rep(x,1,sz(it)) ans[it[0]][it[x]]=ans[it[x]][it[0]]=1;
		}
		
		if (sz(comps)==2) return 0;
		
		if (sz(comps)>1) rep(x,0,sz(comps)){
			ans[comps[x][0]][comps[(x+1)%sz(comps)][0]]=ans[comps[(x+1)%sz(comps)][0]][comps[x][0]]=1;
		}
		
		idx++;
	}
	
	//rep(x,0,n) cout<<comp[x]<<" "<<subcomp[x]<<endl;
	
	rep(x,0,n) rep(y,0,n){
		if (arr[x][y]==0){
			if (comp[x]==comp[y]) return 0;
		}
		else if (arr[x][y]==1){
			if (comp[x]!=comp[y] || subcomp[x]!=subcomp[y]) return 0;
		}
		else{
			if (comp[x]!=comp[y] || subcomp[x]==subcomp[y]) return 0;
		}
	}
	
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 11 ms 1440 KB Output is correct
7 Correct 255 ms 26232 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 11 ms 1440 KB Output is correct
7 Correct 255 ms 26232 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 253 ms 26104 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 8 ms 1024 KB Output is correct
17 Correct 121 ms 16224 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 66 ms 6776 KB Output is correct
21 Correct 255 ms 26200 KB Output is correct
22 Correct 247 ms 26232 KB Output is correct
23 Correct 253 ms 26104 KB Output is correct
24 Correct 261 ms 26232 KB Output is correct
25 Correct 107 ms 16248 KB Output is correct
26 Correct 109 ms 16248 KB Output is correct
27 Correct 260 ms 26200 KB Output is correct
28 Correct 276 ms 26104 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 288 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 15 ms 1408 KB Output is correct
9 Correct 255 ms 26232 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 268 ms 26104 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 1024 KB Output is correct
17 Correct 116 ms 16248 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 77 ms 6776 KB Output is correct
22 Correct 279 ms 26208 KB Output is correct
23 Correct 280 ms 26120 KB Output is correct
24 Correct 269 ms 26152 KB Output is correct
25 Correct 105 ms 16248 KB Output is correct
26 Correct 122 ms 16212 KB Output is correct
27 Correct 257 ms 26232 KB Output is correct
28 Correct 269 ms 26168 KB Output is correct
29 Correct 104 ms 16248 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 61 ms 6776 KB Output is correct
5 Correct 248 ms 26204 KB Output is correct
6 Correct 293 ms 26104 KB Output is correct
7 Correct 261 ms 26232 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 66 ms 6776 KB Output is correct
10 Correct 248 ms 26164 KB Output is correct
11 Correct 240 ms 26196 KB Output is correct
12 Correct 265 ms 26104 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 61 ms 6904 KB Output is correct
17 Correct 250 ms 26104 KB Output is correct
18 Correct 252 ms 26104 KB Output is correct
19 Correct 241 ms 26104 KB Output is correct
20 Correct 253 ms 26104 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 11 ms 1440 KB Output is correct
7 Correct 255 ms 26232 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 253 ms 26104 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 8 ms 1024 KB Output is correct
17 Correct 121 ms 16224 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 66 ms 6776 KB Output is correct
21 Correct 255 ms 26200 KB Output is correct
22 Correct 247 ms 26232 KB Output is correct
23 Correct 253 ms 26104 KB Output is correct
24 Correct 261 ms 26232 KB Output is correct
25 Correct 107 ms 16248 KB Output is correct
26 Correct 109 ms 16248 KB Output is correct
27 Correct 260 ms 26200 KB Output is correct
28 Correct 276 ms 26104 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 288 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 15 ms 1408 KB Output is correct
37 Correct 255 ms 26232 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 268 ms 26104 KB Output is correct
42 Correct 0 ms 256 KB Output is correct
43 Correct 1 ms 256 KB Output is correct
44 Correct 5 ms 1024 KB Output is correct
45 Correct 116 ms 16248 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 77 ms 6776 KB Output is correct
50 Correct 279 ms 26208 KB Output is correct
51 Correct 280 ms 26120 KB Output is correct
52 Correct 269 ms 26152 KB Output is correct
53 Correct 105 ms 16248 KB Output is correct
54 Correct 122 ms 16212 KB Output is correct
55 Correct 257 ms 26232 KB Output is correct
56 Correct 269 ms 26168 KB Output is correct
57 Correct 104 ms 16248 KB Output is correct
58 Correct 1 ms 256 KB Output is correct
59 Correct 1 ms 256 KB Output is correct
60 Correct 5 ms 1024 KB Output is correct
61 Correct 115 ms 16252 KB Output is correct
62 Correct 0 ms 256 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 62 ms 6904 KB Output is correct
66 Correct 106 ms 16248 KB Output is correct
67 Correct 104 ms 16308 KB Output is correct
68 Correct 109 ms 16248 KB Output is correct
69 Correct 108 ms 16248 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 11 ms 1440 KB Output is correct
7 Correct 255 ms 26232 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 288 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 253 ms 26104 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 8 ms 1024 KB Output is correct
17 Correct 121 ms 16224 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 66 ms 6776 KB Output is correct
21 Correct 255 ms 26200 KB Output is correct
22 Correct 247 ms 26232 KB Output is correct
23 Correct 253 ms 26104 KB Output is correct
24 Correct 261 ms 26232 KB Output is correct
25 Correct 107 ms 16248 KB Output is correct
26 Correct 109 ms 16248 KB Output is correct
27 Correct 260 ms 26200 KB Output is correct
28 Correct 276 ms 26104 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 288 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 15 ms 1408 KB Output is correct
37 Correct 255 ms 26232 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 268 ms 26104 KB Output is correct
42 Correct 0 ms 256 KB Output is correct
43 Correct 1 ms 256 KB Output is correct
44 Correct 5 ms 1024 KB Output is correct
45 Correct 116 ms 16248 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 77 ms 6776 KB Output is correct
50 Correct 279 ms 26208 KB Output is correct
51 Correct 280 ms 26120 KB Output is correct
52 Correct 269 ms 26152 KB Output is correct
53 Correct 105 ms 16248 KB Output is correct
54 Correct 122 ms 16212 KB Output is correct
55 Correct 257 ms 26232 KB Output is correct
56 Correct 269 ms 26168 KB Output is correct
57 Correct 104 ms 16248 KB Output is correct
58 Correct 1 ms 256 KB Output is correct
59 Correct 1 ms 256 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 61 ms 6776 KB Output is correct
62 Correct 248 ms 26204 KB Output is correct
63 Correct 293 ms 26104 KB Output is correct
64 Correct 261 ms 26232 KB Output is correct
65 Correct 1 ms 256 KB Output is correct
66 Correct 66 ms 6776 KB Output is correct
67 Correct 248 ms 26164 KB Output is correct
68 Correct 240 ms 26196 KB Output is correct
69 Correct 265 ms 26104 KB Output is correct
70 Correct 1 ms 256 KB Output is correct
71 Correct 1 ms 256 KB Output is correct
72 Correct 1 ms 256 KB Output is correct
73 Correct 61 ms 6904 KB Output is correct
74 Correct 250 ms 26104 KB Output is correct
75 Correct 252 ms 26104 KB Output is correct
76 Correct 241 ms 26104 KB Output is correct
77 Correct 253 ms 26104 KB Output is correct
78 Correct 1 ms 256 KB Output is correct
79 Correct 1 ms 256 KB Output is correct
80 Correct 5 ms 1024 KB Output is correct
81 Correct 115 ms 16252 KB Output is correct
82 Correct 0 ms 256 KB Output is correct
83 Correct 1 ms 384 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 62 ms 6904 KB Output is correct
86 Correct 106 ms 16248 KB Output is correct
87 Correct 104 ms 16308 KB Output is correct
88 Correct 109 ms 16248 KB Output is correct
89 Correct 108 ms 16248 KB Output is correct
90 Correct 1 ms 256 KB Output is correct
91 Correct 1 ms 256 KB Output is correct
92 Correct 5 ms 768 KB Output is correct
93 Correct 105 ms 12152 KB Output is correct
94 Correct 1 ms 256 KB Output is correct
95 Correct 1 ms 256 KB Output is correct
96 Correct 1 ms 256 KB Output is correct
97 Correct 24 ms 3448 KB Output is correct
98 Correct 97 ms 12152 KB Output is correct
99 Correct 95 ms 12152 KB Output is correct
100 Correct 95 ms 12152 KB Output is correct
101 Correct 99 ms 12152 KB Output is correct
102 Correct 102 ms 12280 KB Output is correct
103 Correct 102 ms 12152 KB Output is correct
104 Correct 108 ms 12152 KB Output is correct
105 Correct 108 ms 12152 KB Output is correct