oj.uz

Submission #896588

# Submission time Handle Problem Language Result Execution time Memory
896588 2024-01-01T17:25:07 Z LCJLY Connecting Supertrees (IOI20_supertrees) C++14
96 / 100
 201 ms 24468 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){
				three.unite(x,y);
			}
		}
	}
	
	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;
				}
			}
		}
	}
	
	for(int x=0;x<n;x++){
		if(three.get(x)==x&&three.size(x)>1){
			if(three.size(x)<=3) return 0;
			int last=-1;
			for(auto it:three.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;
				
				ans[last][three.storage[x][1]]=1;
				ans[three.storage[x][1]][last]=1;
			}
			for(auto it:three.storage[x]){
				for(auto it2:three.storage[x]){
					if(it==it2) continue;
					if(one.sameSet(it,it2)) continue;
					if(p[it][it2]!=3) 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 344 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 153 ms 22276 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 344 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 153 ms 22276 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 1 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 6 ms 1372 KB Output is correct
13 Correct 158 ms 22356 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 75 ms 12368 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 5992 KB Output is correct
21 Correct 179 ms 22388 KB Output is correct
22 Correct 150 ms 22292 KB Output is correct
23 Correct 201 ms 22492 KB Output is correct
24 Correct 153 ms 22356 KB Output is correct
25 Correct 64 ms 12312 KB Output is correct
26 Correct 74 ms 12572 KB Output is correct
27 Correct 155 ms 22352 KB Output is correct
28 Correct 171 ms 22356 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 7 ms 1372 KB Output is correct
9 Correct 156 ms 22284 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 154 ms 22292 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 76 ms 12308 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 57 ms 5972 KB Output is correct
22 Correct 160 ms 22448 KB Output is correct
23 Correct 171 ms 22352 KB Output is correct
24 Correct 185 ms 22308 KB Output is correct
25 Correct 71 ms 12296 KB Output is correct
26 Correct 72 ms 12292 KB Output is correct
27 Correct 164 ms 22324 KB Output is correct
28 Correct 174 ms 22440 KB Output is correct
29 Correct 94 ms 12372 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 43 ms 5884 KB Output is correct
5 Correct 159 ms 22280 KB Output is correct
6 Correct 157 ms 22296 KB Output is correct
7 Correct 158 ms 22428 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 38 ms 5872 KB Output is correct
10 Correct 159 ms 22352 KB Output is correct
11 Correct 165 ms 22272 KB Output is correct
12 Correct 167 ms 22372 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 38 ms 5972 KB Output is correct
17 Correct 165 ms 22452 KB Output is correct
18 Correct 163 ms 22420 KB Output is correct
19 Correct 149 ms 22356 KB Output is correct
20 Correct 150 ms 22312 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 344 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 153 ms 22276 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 1 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 6 ms 1372 KB Output is correct
13 Correct 158 ms 22356 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 75 ms 12368 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 5992 KB Output is correct
21 Correct 179 ms 22388 KB Output is correct
22 Correct 150 ms 22292 KB Output is correct
23 Correct 201 ms 22492 KB Output is correct
24 Correct 153 ms 22356 KB Output is correct
25 Correct 64 ms 12312 KB Output is correct
26 Correct 74 ms 12572 KB Output is correct
27 Correct 155 ms 22352 KB Output is correct
28 Correct 171 ms 22356 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 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1372 KB Output is correct
37 Correct 156 ms 22284 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1364 KB Output is correct
41 Correct 154 ms 22292 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 76 ms 12308 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 57 ms 5972 KB Output is correct
50 Correct 160 ms 22448 KB Output is correct
51 Correct 171 ms 22352 KB Output is correct
52 Correct 185 ms 22308 KB Output is correct
53 Correct 71 ms 12296 KB Output is correct
54 Correct 72 ms 12292 KB Output is correct
55 Correct 164 ms 22324 KB Output is correct
56 Correct 174 ms 22440 KB Output is correct
57 Correct 94 ms 12372 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 4 ms 860 KB Output is correct
61 Correct 78 ms 12372 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 39 ms 6036 KB Output is correct
66 Correct 64 ms 12372 KB Output is correct
67 Correct 73 ms 12292 KB Output is correct
68 Correct 63 ms 12372 KB Output is correct
69 Correct 91 ms 12372 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 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 153 ms 22276 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 1 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 6 ms 1372 KB Output is correct
13 Correct 158 ms 22356 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 75 ms 12368 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 5992 KB Output is correct
21 Correct 179 ms 22388 KB Output is correct
22 Correct 150 ms 22292 KB Output is correct
23 Correct 201 ms 22492 KB Output is correct
24 Correct 153 ms 22356 KB Output is correct
25 Correct 64 ms 12312 KB Output is correct
26 Correct 74 ms 12572 KB Output is correct
27 Correct 155 ms 22352 KB Output is correct
28 Correct 171 ms 22356 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 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1372 KB Output is correct
37 Correct 156 ms 22284 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1364 KB Output is correct
41 Correct 154 ms 22292 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 76 ms 12308 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 57 ms 5972 KB Output is correct
50 Correct 160 ms 22448 KB Output is correct
51 Correct 171 ms 22352 KB Output is correct
52 Correct 185 ms 22308 KB Output is correct
53 Correct 71 ms 12296 KB Output is correct
54 Correct 72 ms 12292 KB Output is correct
55 Correct 164 ms 22324 KB Output is correct
56 Correct 174 ms 22440 KB Output is correct
57 Correct 94 ms 12372 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 43 ms 5884 KB Output is correct
62 Correct 159 ms 22280 KB Output is correct
63 Correct 157 ms 22296 KB Output is correct
64 Correct 158 ms 22428 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 38 ms 5872 KB Output is correct
67 Correct 159 ms 22352 KB Output is correct
68 Correct 165 ms 22272 KB Output is correct
69 Correct 167 ms 22372 KB Output is correct
70 Correct 1 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 38 ms 5972 KB Output is correct
74 Correct 165 ms 22452 KB Output is correct
75 Correct 163 ms 22420 KB Output is correct
76 Correct 149 ms 22356 KB Output is correct
77 Correct 150 ms 22312 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 4 ms 860 KB Output is correct
81 Correct 78 ms 12372 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 39 ms 6036 KB Output is correct
86 Correct 64 ms 12372 KB Output is correct
87 Correct 73 ms 12292 KB Output is correct
88 Correct 63 ms 12372 KB Output is correct
89 Correct 91 ms 12372 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 860 KB Output is correct
93 Correct 80 ms 12308 KB Output is correct
94 Correct 0 ms 344 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 348 KB Output is correct
97 Correct 17 ms 4188 KB Output is correct
98 Correct 65 ms 14476 KB Output is correct
99 Correct 65 ms 14332 KB Output is correct
100 Correct 65 ms 14420 KB Output is correct
101 Correct 63 ms 14416 KB Output is correct
102 Incorrect 177 ms 24468 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -