oj.uz

Submission #311958

# Submission time Handle Problem Language Result Execution time Memory
311958 2020-10-12T04:04:17 Z MrGary Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 291 ms 22520 KB 
/*
{
######################
#       Author       #
#        Gary        #
#        2020        #
######################
*/
#include<bits/stdc++.h>
#define rb(a,b,c) for(int a=b;a<=c;++a)
#define rl(a,b,c) for(int a=b;a>=c;--a)
#define LL long long
#define IT iterator
#define PB push_back
#define II(a,b) make_pair(a,b)
#define FIR first
#define SEC second
#define FREO freopen("check.out","w",stdout)
#define rep(a,b) for(int a=0;a<b;++a)
#define SRAND mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define random(a) rng()%a
#define ALL(a) a.begin(),a.end()
#define POB pop_back
#define ff fflush(stdout)
#define fastio ios::sync_with_stdio(false)
#define R(a) cin>>a
#define R2(a,b) cin>>a>>b
#define check_min(a,b) a=min(a,b)
#define check_max(a,b) a=max(a,b)
#include "supertrees.h"
using namespace std;
const int INF=0x3f3f3f3f;
typedef pair<int,int> mp;
/*}
*/
const int MAXN=1001;
struct my_dsu{
	vector<int> vec[MAXN];
	int fa[MAXN];
	int root(int u){
		return fa[u]=(fa[u]==u? u:root(fa[u]));
	}
	void merge(int u,int v){
		u=root(u);
		v=root(v);
		if(u==v) return;
		if(vec[u].size()>vec[v].size()) swap(u,v);
		for(auto it:vec[u])
			vec[v].PB(it);
		fa[u]=v;
		vec[u].clear();
	}
}dsu,dsu2;
bool three[MAXN];
int construct(std::vector<std::vector<int>> p) {
	int n = p.size();
	rep(i,n)
		dsu.fa[i]=i,dsu.vec[i].PB(i),dsu2.fa[i]=i,dsu2.vec[i].PB(i);
	vector<vector<int> >  ans=vector<vector<int> > (n,vector<int> (n,0));
	rep(i,n)
		rep(j,n){
			if(p[i][j]==1){
				dsu.merge(i,j);
			}	
		}
	rep(i,n)
		rep(j,n)
			if(dsu.root(i)==dsu.root(j)){
				if(p[i][j]!=1) return 0;
			}
	rep(i,n)
		if(dsu.root(i)==i)
		{
			int las=-1;
			for(auto it:dsu.vec[i])
			{
				if(las!=-1){
					ans[las][it]=ans[it][las]=1;
				}
				las=it;
			}	
				 
		}
//	rep(i,n)
//		if(dsu.root(i)==i){
//			for(auto it:dsu.vec[i]) cout<<it<<' ';
//			cout<<endl;
//		}
	rep(i,n)
		rep(j,n)
			if(p[i][j]>1){
//				cout<<dsu.root(i)<<'_'<<dsu.root(j)<<endl;
				dsu2.merge(dsu.root(i),dsu.root(j));
			}
	rep(i,n)
		rep(j,n)
			if(dsu.root(i)!=dsu.root(j))
			if(dsu2.root(dsu.root(i))==dsu2.root(dsu.root(j))){
				if(p[i][j]<=1){
//					cout<<'!'<<' '<<i<<" "<<j<<endl;
					return false;
				}
			}
	rep(i,n)
		if(dsu2.root(i)==i){
			if(dsu2.vec[i].size()==1) continue;
			if(dsu2.vec[i].size()==2) return 0;
			int las=dsu2.vec[i].back();
			for(auto it:dsu2.vec[i]){
				ans[it][las]=ans[las][it]=1;
				las=it;
			}	
		}
//		cout<<"TONOW\n";
	rep(i,n)
		rep(j,n)
			if(p[i][j]==3){
				three[dsu2.root(dsu.root(i))]=1;
			}
	rep(i,n)
		if(three[i]){
			if(dsu2.vec[i].size()<=3) return 0;
			ans[dsu2.vec[i][0]][dsu2.vec[i][2]]=ans[dsu2.vec[i][2]][dsu2.vec[i][0]]=1;
		}
	rep(i,n)
		rep(j,n)
			if(dsu2.root(dsu.root(i))==dsu2.root(dsu.root(j))){
				if(three[dsu2.root(dsu.root(i))]){
					if(p[i][j]!=3) return false;
				}
			}
//	for(auto it:ans){
//		for(auto itt:it){
//			cout<<itt<<' ';
//		}
//		cout<<endl;
//	}
	build(ans);
	return 1;
}
//int main(){
//	fastio;
//	cout<<construct({{1,3},{3,1}});
//	return 0;
//}

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 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1408 KB Output is correct
7 Correct 273 ms 22328 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 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1408 KB Output is correct
7 Correct 273 ms 22328 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 246 ms 22264 KB Output is correct
14 Correct 0 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 117 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 68 ms 5880 KB Output is correct
21 Correct 272 ms 22264 KB Output is correct
22 Correct 265 ms 22328 KB Output is correct
23 Correct 291 ms 22264 KB Output is correct
24 Correct 247 ms 22136 KB Output is correct
25 Correct 100 ms 12280 KB Output is correct
26 Correct 97 ms 12280 KB Output is correct
27 Correct 289 ms 22288 KB Output is correct
28 Correct 243 ms 22264 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 10 ms 1408 KB Output is correct
9 Correct 247 ms 22136 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 267 ms 22252 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 119 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 1 ms 512 KB Output is correct
21 Correct 64 ms 5880 KB Output is correct
22 Correct 255 ms 22264 KB Output is correct
23 Correct 261 ms 22520 KB Output is correct
24 Correct 276 ms 22264 KB Output is correct
25 Correct 106 ms 12280 KB Output is correct
26 Correct 102 ms 12280 KB Output is correct
27 Correct 253 ms 22264 KB Output is correct
28 Correct 278 ms 22264 KB Output is correct
29 Correct 107 ms 12408 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 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 67 ms 5880 KB Output is correct
5 Correct 275 ms 22264 KB Output is correct
6 Correct 262 ms 22160 KB Output is correct
7 Correct 290 ms 22264 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 65 ms 5880 KB Output is correct
10 Correct 268 ms 22264 KB Output is correct
11 Correct 255 ms 22300 KB Output is correct
12 Correct 279 ms 22264 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 384 KB Output is correct
16 Correct 66 ms 5880 KB Output is correct
17 Correct 255 ms 22264 KB Output is correct
18 Correct 279 ms 22264 KB Output is correct
19 Correct 268 ms 22264 KB Output is correct
20 Correct 248 ms 22136 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 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1408 KB Output is correct
7 Correct 273 ms 22328 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 246 ms 22264 KB Output is correct
14 Correct 0 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 117 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 68 ms 5880 KB Output is correct
21 Correct 272 ms 22264 KB Output is correct
22 Correct 265 ms 22328 KB Output is correct
23 Correct 291 ms 22264 KB Output is correct
24 Correct 247 ms 22136 KB Output is correct
25 Correct 100 ms 12280 KB Output is correct
26 Correct 97 ms 12280 KB Output is correct
27 Correct 289 ms 22288 KB Output is correct
28 Correct 243 ms 22264 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 10 ms 1408 KB Output is correct
37 Correct 247 ms 22136 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 0 ms 384 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 267 ms 22252 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 119 ms 12280 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 64 ms 5880 KB Output is correct
50 Correct 255 ms 22264 KB Output is correct
51 Correct 261 ms 22520 KB Output is correct
52 Correct 276 ms 22264 KB Output is correct
53 Correct 106 ms 12280 KB Output is correct
54 Correct 102 ms 12280 KB Output is correct
55 Correct 253 ms 22264 KB Output is correct
56 Correct 278 ms 22264 KB Output is correct
57 Correct 107 ms 12408 KB Output is correct
58 Correct 0 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 5 ms 896 KB Output is correct
61 Correct 116 ms 12280 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 0 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 66 ms 5880 KB Output is correct
66 Correct 109 ms 12280 KB Output is correct
67 Correct 100 ms 12280 KB Output is correct
68 Correct 106 ms 12308 KB Output is correct
69 Correct 107 ms 12280 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 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1408 KB Output is correct
7 Correct 273 ms 22328 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 246 ms 22264 KB Output is correct
14 Correct 0 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 117 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 68 ms 5880 KB Output is correct
21 Correct 272 ms 22264 KB Output is correct
22 Correct 265 ms 22328 KB Output is correct
23 Correct 291 ms 22264 KB Output is correct
24 Correct 247 ms 22136 KB Output is correct
25 Correct 100 ms 12280 KB Output is correct
26 Correct 97 ms 12280 KB Output is correct
27 Correct 289 ms 22288 KB Output is correct
28 Correct 243 ms 22264 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 10 ms 1408 KB Output is correct
37 Correct 247 ms 22136 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 0 ms 384 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 267 ms 22252 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 119 ms 12280 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 64 ms 5880 KB Output is correct
50 Correct 255 ms 22264 KB Output is correct
51 Correct 261 ms 22520 KB Output is correct
52 Correct 276 ms 22264 KB Output is correct
53 Correct 106 ms 12280 KB Output is correct
54 Correct 102 ms 12280 KB Output is correct
55 Correct 253 ms 22264 KB Output is correct
56 Correct 278 ms 22264 KB Output is correct
57 Correct 107 ms 12408 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 67 ms 5880 KB Output is correct
62 Correct 275 ms 22264 KB Output is correct
63 Correct 262 ms 22160 KB Output is correct
64 Correct 290 ms 22264 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 65 ms 5880 KB Output is correct
67 Correct 268 ms 22264 KB Output is correct
68 Correct 255 ms 22300 KB Output is correct
69 Correct 279 ms 22264 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 384 KB Output is correct
73 Correct 66 ms 5880 KB Output is correct
74 Correct 255 ms 22264 KB Output is correct
75 Correct 279 ms 22264 KB Output is correct
76 Correct 268 ms 22264 KB Output is correct
77 Correct 248 ms 22136 KB Output is correct
78 Correct 0 ms 384 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 5 ms 896 KB Output is correct
81 Correct 116 ms 12280 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 0 ms 384 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 66 ms 5880 KB Output is correct
86 Correct 109 ms 12280 KB Output is correct
87 Correct 100 ms 12280 KB Output is correct
88 Correct 106 ms 12308 KB Output is correct
89 Correct 107 ms 12280 KB Output is correct
90 Correct 0 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 106 ms 12312 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 0 ms 384 KB Output is correct
96 Correct 0 ms 384 KB Output is correct
97 Correct 28 ms 3320 KB Output is correct
98 Correct 105 ms 12408 KB Output is correct
99 Correct 109 ms 12280 KB Output is correct
100 Correct 106 ms 12280 KB Output is correct
101 Correct 107 ms 12304 KB Output is correct
102 Correct 122 ms 12408 KB Output is correct
103 Correct 126 ms 12280 KB Output is correct
104 Correct 109 ms 12280 KB Output is correct
105 Correct 117 ms 12280 KB Output is correct