oj.uz

답안 #300921

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
300921 2020-09-17T15:08:18 Z nandonathaniel 슈퍼트리 잇기 (IOI20_supertrees) C++14
96 / 100
 281 ms 24164 KB 
#include "supertrees.h"
#include "bits/stdc++.h"
using namespace std;
typedef pair<int,int> pii;
const int MAXN=1005;

int par[MAXN];
bool idx[MAXN];
vector<int> kel[MAXN],kelkecil[MAXN];

int find(int x){
	if(par[x]==x)return par[x];
	return par[x]=find(par[x]);
}

void join(int a,int b){
	int ortua=find(a),ortub=find(b);
	par[ortua]=ortub;
}

int construct(vector<vector<int>> p){
	vector<pii> nol;
	vector<vector<int>> ans;
	int n = p.size();
	for(int i=0;i<n;i++)par[i]=i;
	ans.resize(n);
	for(int i=0;i<n;i++){
		ans[i].resize(n);
		for(int j=0;j<n;j++){
			ans[i][j]=0;
			if(i==j)continue;
			if(p[i][j])join(i,j);
			else if(i<j)nol.push_back({i,j});
		}
	}
	for(auto isi : nol){
		if(find(isi.first)==find(isi.second))return 0;
	}
	for(int i=0;i<n;i++)kel[find(i)].push_back(i);
	for(int i=0;i<n;i++){
		if(kel[i].size()<=1)continue;
		for(int j=0;j<n;j++){
			kelkecil[j].clear();
			par[j]=j;
			idx[j]=false;
		}
		bool dua=false,tiga=false;
		for(auto isi : kel[i]){
			for(auto isi2 : kel[i]){
				if(p[isi][isi2]==1)join(isi,isi2);
				else if(p[isi][isi2]==3)tiga=true;
				else dua=true;
			}
		}
		if(dua && tiga)return 0;
		for(auto isi : kel[i])kelkecil[find(isi)].push_back(isi);
		vector<vector<int>> satu;
		vector<int> rest;
		for(int j=0;j<n;j++){
			if(kelkecil[j].size()<=1)continue;
			for(auto isi : kelkecil[j]){
				for(auto isi2 : kelkecil[j]){
					if(p[isi][isi2]!=1)return 0;
				}
			}
			satu.push_back(kelkecil[j]);
		}
		for(auto isi : satu){
			for(auto isi2 : isi)idx[isi2]=true;
		}
		for(auto isi : kel[i]){
			if(!idx[isi])rest.push_back(isi);
		}
		vector<int> cycle;
		for(auto isi : rest)cycle.push_back(isi);
		for(auto isi : satu)cycle.push_back(isi.back());
		if(cycle.size()==2)return 0;
		for(auto isi : satu){
			for(int j=0;j<isi.size()-1;j++){
				ans[isi[j]][isi[j+1]]=1;
				ans[isi[j+1]][isi[j]]=1;
			}
		}
		if(cycle.size()>1){
			for(int j=0;j<cycle.size();j++){
				ans[cycle[j]][cycle[(j+1)%cycle.size()]]=1;
				ans[cycle[(j+1)%cycle.size()]][cycle[j]]=1;
			}
			if(tiga){
				if(cycle.size()==3)return 0;
				else{
					ans[cycle[0]][cycle[2]]=1;
					ans[cycle[2]][cycle[0]]=1;
				}
			}
		}
	}
	build(ans);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:79:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |    for(int j=0;j<isi.size()-1;j++){
      |                ~^~~~~~~~~~~~~
supertrees.cpp:85:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |    for(int j=0;j<cycle.size();j++){
      |                ~^~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 267 ms 22136 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 267 ms 22136 KB Output is correct
8 Correct 1 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 1 ms 384 KB Output is correct
12 Correct 11 ms 1368 KB Output is correct
13 Correct 251 ms 24164 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 6 ms 896 KB Output is correct
17 Correct 128 ms 14184 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 66 ms 6252 KB Output is correct
21 Correct 256 ms 23648 KB Output is correct
22 Correct 256 ms 24048 KB Output is correct
23 Correct 271 ms 22188 KB Output is correct
24 Correct 249 ms 24036 KB Output is correct
25 Correct 115 ms 15716 KB Output is correct
26 Correct 114 ms 16100 KB Output is correct
27 Correct 268 ms 22212 KB Output is correct
28 Correct 256 ms 24164 KB Output is correct

Subtask #3
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 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 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 250 ms 24036 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 1280 KB Output is correct
13 Correct 258 ms 22136 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 6 ms 896 KB Output is correct
17 Correct 127 ms 14184 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 63 ms 6252 KB Output is correct
22 Correct 251 ms 23644 KB Output is correct
23 Correct 246 ms 24160 KB Output is correct
24 Correct 267 ms 22192 KB Output is correct
25 Correct 111 ms 16228 KB Output is correct
26 Correct 113 ms 15716 KB Output is correct
27 Correct 246 ms 24032 KB Output is correct
28 Correct 263 ms 22320 KB Output is correct
29 Correct 112 ms 16100 KB Output is correct

Subtask #4
35.0 / 35.0

# 결과 실행 시간 메모리 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 63 ms 6252 KB Output is correct
5 Correct 256 ms 23648 KB Output is correct
6 Correct 253 ms 24036 KB Output is correct
7 Correct 281 ms 22188 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 63 ms 6380 KB Output is correct
10 Correct 252 ms 23652 KB Output is correct
11 Correct 258 ms 24132 KB Output is correct
12 Correct 260 ms 22192 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 66 ms 6380 KB Output is correct
17 Correct 259 ms 23652 KB Output is correct
18 Correct 257 ms 23668 KB Output is correct
19 Correct 259 ms 23908 KB Output is correct
20 Correct 253 ms 24036 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 267 ms 22136 KB Output is correct
8 Correct 1 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 1 ms 384 KB Output is correct
12 Correct 11 ms 1368 KB Output is correct
13 Correct 251 ms 24164 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 6 ms 896 KB Output is correct
17 Correct 128 ms 14184 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 66 ms 6252 KB Output is correct
21 Correct 256 ms 23648 KB Output is correct
22 Correct 256 ms 24048 KB Output is correct
23 Correct 271 ms 22188 KB Output is correct
24 Correct 249 ms 24036 KB Output is correct
25 Correct 115 ms 15716 KB Output is correct
26 Correct 114 ms 16100 KB Output is correct
27 Correct 268 ms 22212 KB Output is correct
28 Correct 256 ms 24164 KB Output is correct
29 Correct 0 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 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 10 ms 1368 KB Output is correct
37 Correct 250 ms 24036 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 1280 KB Output is correct
41 Correct 258 ms 22136 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 384 KB Output is correct
44 Correct 6 ms 896 KB Output is correct
45 Correct 127 ms 14184 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 0 ms 384 KB Output is correct
48 Correct 0 ms 384 KB Output is correct
49 Correct 63 ms 6252 KB Output is correct
50 Correct 251 ms 23644 KB Output is correct
51 Correct 246 ms 24160 KB Output is correct
52 Correct 267 ms 22192 KB Output is correct
53 Correct 111 ms 16228 KB Output is correct
54 Correct 113 ms 15716 KB Output is correct
55 Correct 246 ms 24032 KB Output is correct
56 Correct 263 ms 22320 KB Output is correct
57 Correct 112 ms 16100 KB Output is correct
58 Correct 1 ms 416 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 6 ms 896 KB Output is correct
61 Correct 127 ms 13544 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 0 ms 384 KB Output is correct
64 Correct 0 ms 384 KB Output is correct
65 Correct 63 ms 6388 KB Output is correct
66 Correct 117 ms 15716 KB Output is correct
67 Correct 116 ms 15716 KB Output is correct
68 Correct 114 ms 16100 KB Output is correct
69 Correct 112 ms 16228 KB Output is correct

Subtask #6
0 / 4.0

# 결과 실행 시간 메모리 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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 267 ms 22136 KB Output is correct
8 Correct 1 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 1 ms 384 KB Output is correct
12 Correct 11 ms 1368 KB Output is correct
13 Correct 251 ms 24164 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 6 ms 896 KB Output is correct
17 Correct 128 ms 14184 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 66 ms 6252 KB Output is correct
21 Correct 256 ms 23648 KB Output is correct
22 Correct 256 ms 24048 KB Output is correct
23 Correct 271 ms 22188 KB Output is correct
24 Correct 249 ms 24036 KB Output is correct
25 Correct 115 ms 15716 KB Output is correct
26 Correct 114 ms 16100 KB Output is correct
27 Correct 268 ms 22212 KB Output is correct
28 Correct 256 ms 24164 KB Output is correct
29 Correct 0 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 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 10 ms 1368 KB Output is correct
37 Correct 250 ms 24036 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 1280 KB Output is correct
41 Correct 258 ms 22136 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 384 KB Output is correct
44 Correct 6 ms 896 KB Output is correct
45 Correct 127 ms 14184 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 0 ms 384 KB Output is correct
48 Correct 0 ms 384 KB Output is correct
49 Correct 63 ms 6252 KB Output is correct
50 Correct 251 ms 23644 KB Output is correct
51 Correct 246 ms 24160 KB Output is correct
52 Correct 267 ms 22192 KB Output is correct
53 Correct 111 ms 16228 KB Output is correct
54 Correct 113 ms 15716 KB Output is correct
55 Correct 246 ms 24032 KB Output is correct
56 Correct 263 ms 22320 KB Output is correct
57 Correct 112 ms 16100 KB Output is correct
58 Correct 0 ms 384 KB Output is correct
59 Correct 0 ms 384 KB Output is correct
60 Correct 0 ms 384 KB Output is correct
61 Correct 63 ms 6252 KB Output is correct
62 Correct 256 ms 23648 KB Output is correct
63 Correct 253 ms 24036 KB Output is correct
64 Correct 281 ms 22188 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 63 ms 6380 KB Output is correct
67 Correct 252 ms 23652 KB Output is correct
68 Correct 258 ms 24132 KB Output is correct
69 Correct 260 ms 22192 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 0 ms 384 KB Output is correct
72 Correct 0 ms 384 KB Output is correct
73 Correct 66 ms 6380 KB Output is correct
74 Correct 259 ms 23652 KB Output is correct
75 Correct 257 ms 23668 KB Output is correct
76 Correct 259 ms 23908 KB Output is correct
77 Correct 253 ms 24036 KB Output is correct
78 Correct 1 ms 416 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 6 ms 896 KB Output is correct
81 Correct 127 ms 13544 KB Output is correct
82 Correct 1 ms 512 KB Output is correct
83 Correct 0 ms 384 KB Output is correct
84 Correct 0 ms 384 KB Output is correct
85 Correct 63 ms 6388 KB Output is correct
86 Correct 117 ms 15716 KB Output is correct
87 Correct 116 ms 15716 KB Output is correct
88 Correct 114 ms 16100 KB Output is correct
89 Correct 112 ms 16228 KB Output is correct
90 Correct 0 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 6 ms 896 KB Output is correct
93 Correct 125 ms 13164 KB Output is correct
94 Correct 1 ms 512 KB Output is correct
95 Correct 0 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 29 ms 4340 KB Output is correct
98 Correct 116 ms 15844 KB Output is correct
99 Correct 113 ms 15720 KB Output is correct
100 Correct 111 ms 15972 KB Output is correct
101 Correct 111 ms 16228 KB Output is correct
102 Incorrect 259 ms 22264 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -