oj.uz

Submission #896593

# Submission time Handle Problem Language Result Execution time Memory
896593 2024-01-01T17:28:32 Z LCJLY Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 186 ms 22444 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl; 
#define show4(x,y) for(auto it:x) cout << it << " "; cout << #y << endl;

struct DSU{
	vector<int>e;
	vector<int>storage[1005];
	void init(int n){
		e=vector<int>(n,-1);
		for(int x=0;x<n;x++){
			storage[x].push_back(x);
		}
	}
	
	int get(int x){return e[x]<0?x:e[x]=get(e[x]);}
	
	bool sameSet(int x, int y){return get(x)==get(y);}
	
	int size(int x){return -e[get(x)];}
	
	bool unite(int x, int y){
		x=get(x);
		y=get(y);
		if(x==y) return 0;
		if(e[x]>e[y]) swap(x,y);
		e[x]+=e[y];
		for(auto it:storage[y]) storage[x].push_back(it);
		e[y]=x;
		return 1;
	}
};

int construct(vector<vector<int>> p) {
	int n=p.size();
	DSU one;
	one.init(n+5);
	DSU two;
	two.init(n+5);
	DSU three;
	three.init(n+5);
	
	for(int x=0;x<n;x++){
		for(int y=0;y<n;y++){
			if(p[x][y]==1){
				one.unite(x,y);
			}
			else if(p[x][y]==2){
				two.unite(x,y);
			}
			else if(p[x][y]==3){
				return 0;
			}
		}
	}
	
	vector<vector<int>>ans;
	ans.resize(n);
	for(int x=0;x<n;x++){
		for(int y=0;y<n;y++){
			ans[x].push_back(0);
		}
	}
	
	bool done[n+5];
	memset(done,0,sizeof(done));
	for(int x=0;x<n;x++){
		if(one.get(x)==x){
			int last=-1;
			for(auto it:one.storage[x]){
				if(last!=-1){
					ans[last][it]=1;
					ans[it][last]=1;
					done[it]=true;
				}
				last=it;
			}
			
			for(auto it:one.storage[x]){
				for(auto it2:one.storage[x]){
					if(p[it][it2]!=1) return 0;
				}
			}
		}
	}
	
	for(int x=0;x<n;x++){
		if(two.get(x)==x&&two.size(x)>1){
			if(two.size(x)==2) return 0;
			int last=-1;
			for(auto it:two.storage[x]){
				if(done[it]) continue; 
				if(last!=-1){
					ans[last][it]=1;
					ans[it][last]=1;
				}
				last=it;
			}
			if(last!=-1){
				ans[last][two.storage[x][0]]=1;
				ans[two.storage[x][0]][last]=1;
			}
			for(auto it:two.storage[x]){
				for(auto it2:two.storage[x]){
					if(it==it2) continue;
					if(one.sameSet(it,it2)) continue;
					if(p[it][it2]!=2) return 0;
				}
			}
		}
	}

	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# 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 7 ms 1372 KB Output is correct
7 Correct 155 ms 22356 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 7 ms 1372 KB Output is correct
7 Correct 155 ms 22356 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 151 ms 22356 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 72 ms 12292 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 38 ms 5976 KB Output is correct
21 Correct 152 ms 22396 KB Output is correct
22 Correct 151 ms 22220 KB Output is correct
23 Correct 157 ms 22360 KB Output is correct
24 Correct 155 ms 22352 KB Output is correct
25 Correct 82 ms 12300 KB Output is correct
26 Correct 66 ms 12296 KB Output is correct
27 Correct 157 ms 22280 KB Output is correct
28 Correct 151 ms 22292 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 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 7 ms 1368 KB Output is correct
9 Correct 152 ms 22356 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 8 ms 1364 KB Output is correct
13 Correct 156 ms 22292 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 77 ms 12568 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 38 ms 5980 KB Output is correct
22 Correct 153 ms 22292 KB Output is correct
23 Correct 155 ms 22276 KB Output is correct
24 Correct 186 ms 22356 KB Output is correct
25 Correct 62 ms 12372 KB Output is correct
26 Correct 63 ms 12368 KB Output is correct
27 Correct 152 ms 22444 KB Output is correct
28 Correct 161 ms 22352 KB Output is correct
29 Correct 62 ms 12368 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 348 KB Output is correct
4 Correct 38 ms 5980 KB Output is correct
5 Correct 158 ms 22264 KB Output is correct
6 Correct 151 ms 22212 KB Output is correct
7 Correct 157 ms 22228 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 38 ms 6016 KB Output is correct
10 Correct 153 ms 22352 KB Output is correct
11 Correct 156 ms 22304 KB Output is correct
12 Correct 158 ms 22296 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 38 ms 6020 KB Output is correct
17 Correct 154 ms 22352 KB Output is correct
18 Correct 177 ms 22252 KB Output is correct
19 Correct 164 ms 22272 KB Output is correct
20 Correct 154 ms 22240 KB Output is correct

Subtask #5
21.0 / 21.0

# 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 7 ms 1372 KB Output is correct
7 Correct 155 ms 22356 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 151 ms 22356 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 72 ms 12292 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 38 ms 5976 KB Output is correct
21 Correct 152 ms 22396 KB Output is correct
22 Correct 151 ms 22220 KB Output is correct
23 Correct 157 ms 22360 KB Output is correct
24 Correct 155 ms 22352 KB Output is correct
25 Correct 82 ms 12300 KB Output is correct
26 Correct 66 ms 12296 KB Output is correct
27 Correct 157 ms 22280 KB Output is correct
28 Correct 151 ms 22292 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 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1368 KB Output is correct
37 Correct 152 ms 22356 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 8 ms 1364 KB Output is correct
41 Correct 156 ms 22292 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 77 ms 12568 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 38 ms 5980 KB Output is correct
50 Correct 153 ms 22292 KB Output is correct
51 Correct 155 ms 22276 KB Output is correct
52 Correct 186 ms 22356 KB Output is correct
53 Correct 62 ms 12372 KB Output is correct
54 Correct 63 ms 12368 KB Output is correct
55 Correct 152 ms 22444 KB Output is correct
56 Correct 161 ms 22352 KB Output is correct
57 Correct 62 ms 12368 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 3 ms 860 KB Output is correct
61 Correct 74 ms 12300 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 51 ms 5912 KB Output is correct
66 Correct 82 ms 12292 KB Output is correct
67 Correct 67 ms 12628 KB Output is correct
68 Correct 63 ms 12372 KB Output is correct
69 Correct 61 ms 12292 KB Output is correct

Subtask #6
4.0 / 4.0

# 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 7 ms 1372 KB Output is correct
7 Correct 155 ms 22356 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1364 KB Output is correct
13 Correct 151 ms 22356 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 72 ms 12292 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 38 ms 5976 KB Output is correct
21 Correct 152 ms 22396 KB Output is correct
22 Correct 151 ms 22220 KB Output is correct
23 Correct 157 ms 22360 KB Output is correct
24 Correct 155 ms 22352 KB Output is correct
25 Correct 82 ms 12300 KB Output is correct
26 Correct 66 ms 12296 KB Output is correct
27 Correct 157 ms 22280 KB Output is correct
28 Correct 151 ms 22292 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 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1368 KB Output is correct
37 Correct 152 ms 22356 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 8 ms 1364 KB Output is correct
41 Correct 156 ms 22292 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 77 ms 12568 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 38 ms 5980 KB Output is correct
50 Correct 153 ms 22292 KB Output is correct
51 Correct 155 ms 22276 KB Output is correct
52 Correct 186 ms 22356 KB Output is correct
53 Correct 62 ms 12372 KB Output is correct
54 Correct 63 ms 12368 KB Output is correct
55 Correct 152 ms 22444 KB Output is correct
56 Correct 161 ms 22352 KB Output is correct
57 Correct 62 ms 12368 KB Output is correct
58 Correct 0 ms 344 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 5980 KB Output is correct
62 Correct 158 ms 22264 KB Output is correct
63 Correct 151 ms 22212 KB Output is correct
64 Correct 157 ms 22228 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 38 ms 6016 KB Output is correct
67 Correct 153 ms 22352 KB Output is correct
68 Correct 156 ms 22304 KB Output is correct
69 Correct 158 ms 22296 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 1 ms 348 KB Output is correct
73 Correct 38 ms 6020 KB Output is correct
74 Correct 154 ms 22352 KB Output is correct
75 Correct 177 ms 22252 KB Output is correct
76 Correct 164 ms 22272 KB Output is correct
77 Correct 154 ms 22240 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 3 ms 860 KB Output is correct
81 Correct 74 ms 12300 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 51 ms 5912 KB Output is correct
86 Correct 82 ms 12292 KB Output is correct
87 Correct 67 ms 12628 KB Output is correct
88 Correct 63 ms 12372 KB Output is correct
89 Correct 61 ms 12292 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 3 ms 604 KB Output is correct
93 Correct 60 ms 8280 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 14 ms 2396 KB Output is correct
98 Correct 70 ms 8452 KB Output is correct
99 Correct 69 ms 8276 KB Output is correct
100 Correct 57 ms 8280 KB Output is correct
101 Correct 56 ms 8452 KB Output is correct
102 Correct 78 ms 8456 KB Output is correct
103 Correct 58 ms 10324 KB Output is correct
104 Correct 58 ms 10320 KB Output is correct
105 Correct 62 ms 10376 KB Output is correct