oj.uz

Submission #800068

# Submission time Handle Problem Language Result Execution time Memory
800068 2023-08-01T09:44:49 Z alvingogo Connecting Supertrees (IOI20_supertrees) C++14
96 / 100
 171 ms 22156 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

struct DSU{
	vector<int> bo;
	void init(int x){
		bo.resize(x);
		iota(bo.begin(),bo.end(),0);
	}
	int find(int x){
		return bo[x]==x?x:bo[x]=find(bo[x]);
	}
	void merge(int x,int y){
		x=find(x);
		y=find(y);
		bo[x]=y;
	}
}dsu,dsu2;
int construct(vector<vector<int> > p) {
	int n=p.size();
	dsu.init(n);
	dsu2.init(n);
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]){
				dsu.merge(i,j);
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if((p[i][j]>0) + (dsu.find(i)==dsu.find(j))==1){
				return 0;
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]==1){
				dsu2.merge(i,j);
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]){
				if((p[i][j]==1) + (dsu2.find(i)==dsu2.find(j))==1){
					return 0;
				}
			}	
		}
	}
	vector<int> val(n);
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(dsu.find(i)==dsu.find(j)){
				if(dsu2.find(i)!=dsu2.find(j)){
					if(val[dsu.find(i)] && val[dsu.find(i)]!=p[i][j]){
						return 0;
					}
					val[dsu.find(i)]=p[i][j];
				}
			}
		}
	}
	vector<vector<int> > vx(n);
	vector<vector<int> > bd(n,vector<int>(n));
	for(int i=0;i<n;i++){
		if(i!=dsu2.find(i)){
			bd[i][dsu2.find(i)]=bd[dsu2.find(i)][i]=1;
		}
		else{
			vx[dsu.find(i)].push_back(i);
		}
	}
	for(int i=0;i<n;i++){
		int y=vx[i].size();
		if(y>=3){
			if(val[i]==0){
				return 0;
			}
			if(val[i]==2){
				for(int j=0;j<y;j++){
					bd[vx[i][j]][vx[i][(j+1)%y]]=bd[vx[i][(j+1)%y]][vx[i][j]]=1;
				}
			}
			else if(val[i]==3){
				if(y<=3){
					return 0;
				}
				for(int j=0;j<y;j++){
					bd[vx[i][j]][vx[i][(j+1)%y]]=bd[vx[i][(j+1)%y]][vx[i][j]]=1;
				}
				bd[vx[i][0]][vx[i][2]]=bd[vx[i][2]][vx[i][0]]=1;
			}
		}
		else if(y==2){
			return 0;
		}
	}
	build(bd);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 165 ms 22016 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 165 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 147 ms 21992 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 608 KB Output is correct
17 Correct 63 ms 8080 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5688 KB Output is correct
21 Correct 153 ms 21964 KB Output is correct
22 Correct 171 ms 22020 KB Output is correct
23 Correct 164 ms 21964 KB Output is correct
24 Correct 149 ms 22048 KB Output is correct
25 Correct 57 ms 8144 KB Output is correct
26 Correct 56 ms 8080 KB Output is correct
27 Correct 158 ms 21968 KB Output is correct
28 Correct 156 ms 22080 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 7 ms 1108 KB Output is correct
9 Correct 165 ms 22092 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 159 ms 22028 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 596 KB Output is correct
17 Correct 64 ms 8140 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 39 ms 5716 KB Output is correct
22 Correct 153 ms 22092 KB Output is correct
23 Correct 158 ms 22156 KB Output is correct
24 Correct 160 ms 21988 KB Output is correct
25 Correct 61 ms 12172 KB Output is correct
26 Correct 63 ms 8140 KB Output is correct
27 Correct 153 ms 22012 KB Output is correct
28 Correct 160 ms 21988 KB Output is correct
29 Correct 63 ms 12172 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 39 ms 5692 KB Output is correct
5 Correct 153 ms 22020 KB Output is correct
6 Correct 155 ms 22028 KB Output is correct
7 Correct 158 ms 22076 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 38 ms 5768 KB Output is correct
10 Correct 152 ms 22056 KB Output is correct
11 Correct 151 ms 21984 KB Output is correct
12 Correct 158 ms 21972 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 39 ms 5692 KB Output is correct
17 Correct 154 ms 22000 KB Output is correct
18 Correct 154 ms 22092 KB Output is correct
19 Correct 149 ms 22032 KB Output is correct
20 Correct 153 ms 22096 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 165 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 147 ms 21992 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 608 KB Output is correct
17 Correct 63 ms 8080 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5688 KB Output is correct
21 Correct 153 ms 21964 KB Output is correct
22 Correct 171 ms 22020 KB Output is correct
23 Correct 164 ms 21964 KB Output is correct
24 Correct 149 ms 22048 KB Output is correct
25 Correct 57 ms 8144 KB Output is correct
26 Correct 56 ms 8080 KB Output is correct
27 Correct 158 ms 21968 KB Output is correct
28 Correct 156 ms 22080 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 165 ms 22092 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1108 KB Output is correct
41 Correct 159 ms 22028 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 596 KB Output is correct
45 Correct 64 ms 8140 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 39 ms 5716 KB Output is correct
50 Correct 153 ms 22092 KB Output is correct
51 Correct 158 ms 22156 KB Output is correct
52 Correct 160 ms 21988 KB Output is correct
53 Correct 61 ms 12172 KB Output is correct
54 Correct 63 ms 8140 KB Output is correct
55 Correct 153 ms 22012 KB Output is correct
56 Correct 160 ms 21988 KB Output is correct
57 Correct 63 ms 12172 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 3 ms 596 KB Output is correct
61 Correct 62 ms 8084 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 38 ms 5692 KB Output is correct
66 Correct 57 ms 8068 KB Output is correct
67 Correct 57 ms 8076 KB Output is correct
68 Correct 59 ms 8064 KB Output is correct
69 Correct 64 ms 12172 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 165 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 147 ms 21992 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 608 KB Output is correct
17 Correct 63 ms 8080 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5688 KB Output is correct
21 Correct 153 ms 21964 KB Output is correct
22 Correct 171 ms 22020 KB Output is correct
23 Correct 164 ms 21964 KB Output is correct
24 Correct 149 ms 22048 KB Output is correct
25 Correct 57 ms 8144 KB Output is correct
26 Correct 56 ms 8080 KB Output is correct
27 Correct 158 ms 21968 KB Output is correct
28 Correct 156 ms 22080 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 165 ms 22092 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1108 KB Output is correct
41 Correct 159 ms 22028 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 596 KB Output is correct
45 Correct 64 ms 8140 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 39 ms 5716 KB Output is correct
50 Correct 153 ms 22092 KB Output is correct
51 Correct 158 ms 22156 KB Output is correct
52 Correct 160 ms 21988 KB Output is correct
53 Correct 61 ms 12172 KB Output is correct
54 Correct 63 ms 8140 KB Output is correct
55 Correct 153 ms 22012 KB Output is correct
56 Correct 160 ms 21988 KB Output is correct
57 Correct 63 ms 12172 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 39 ms 5692 KB Output is correct
62 Correct 153 ms 22020 KB Output is correct
63 Correct 155 ms 22028 KB Output is correct
64 Correct 158 ms 22076 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 38 ms 5768 KB Output is correct
67 Correct 152 ms 22056 KB Output is correct
68 Correct 151 ms 21984 KB Output is correct
69 Correct 158 ms 21972 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 39 ms 5692 KB Output is correct
74 Correct 154 ms 22000 KB Output is correct
75 Correct 154 ms 22092 KB Output is correct
76 Correct 149 ms 22032 KB Output is correct
77 Correct 153 ms 22096 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 3 ms 596 KB Output is correct
81 Correct 62 ms 8084 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 38 ms 5692 KB Output is correct
86 Correct 57 ms 8068 KB Output is correct
87 Correct 57 ms 8076 KB Output is correct
88 Correct 59 ms 8064 KB Output is correct
89 Correct 64 ms 12172 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 3 ms 596 KB Output is correct
93 Correct 62 ms 8188 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 15 ms 2260 KB Output is correct
98 Correct 57 ms 8076 KB Output is correct
99 Correct 58 ms 8068 KB Output is correct
100 Correct 58 ms 8140 KB Output is correct
101 Correct 60 ms 12160 KB Output is correct
102 Incorrect 159 ms 22020 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -