Submission #1063338

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1063338	2024-08-17T17:00:19 Z	jamjanek	Connecting Supertrees (IOI20_supertrees)	C++14	21 / 100	133 ms	23944 KB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

int father1[1010], father[1010], father3[1010];
int find1(int x){
	if(father1[x]==x)return x;
	return father1[x] = find1(father1[x]);
}
int find2(int x){
	if(father[x]==x)return x;
	return father[x] = find2(father[x]);
}
vector<int>cykle[1010];

int construct(std::vector<std::vector<int>> p) {
	int n = p.size(), i, j;
	for(i=0;i<n;i++)father[i] = father1[i] = i;
	std::vector<std::vector<int>> answer = p;
	for(i=0;i<n;i++)
		for(j=0;j<n;j++)
			answer[i][j] = 0;
	for(i=0;i<n;i++)
		for(j=0;j<n;j++){
			if(p[i][j]==3 || (i==j && p[i][j]!=1) || (p[i][j]!=p[j][i]))
				return 0;
			if(p[i][j]>0)
				father1[find1(i)] = find1(j);
			if(p[i][j]==1 && find2(i)!=find2(j)){
				father[find2(i)] = find2(j);
				answer[i][j] = answer[j][i] = 1;
			}
		}
	for(i=0;i<n;i++){
		for(j=0;j<n;j++){
			if(p[i][j]==0 && find1(i)==find1(j))return 0;
			if(p[i][j]>0 && find1(i)!=find1(j))return 0;
		}
	}
	for(i=0;i<n;i++)
		for(j=0;j<n;j++)
			if(p[i][j]==2 && find2(i)==find2(j))
				return 0;
	for(i=0;i<n;i++)
		if(find2(i)==i){
			int mini = i;
			for(j=0;j<n;j++)
				if(p[i][j]==2 && find2(j)==j && j<mini){
					j = mini;
				}
			assert(mini==i);
			if(mini!=i)
				cykle[mini].push_back(i);
		}
	bool gowno = 1;
	for(i=0;i<n;i++)
		if(cykle[i].size()!=0)
			gowno = 0;
	assert(gowno);
	for(int j=0;j<n;j++){
		if(cykle[j].size()==1)return 0;
		if(cykle[j].size())cykle[j].push_back(j);
		assert(cykle[j].size()>2 || cykle[j].size()==0);
		for(i=0;i<(int)cykle[j].size();i++){
			int mod = cykle[j].size();
			answer[cykle[j][i]][cykle[j][(i+1)%mod]] = 1;
			answer[cykle[j][(i+1)%mod]][cykle[j][i]] = 1;
		}
	}
	build(answer);
	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	5 ms	1240 KB	Output is correct
7	Correct	131 ms	23892 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	5 ms	1240 KB	Output is correct
7	Correct	131 ms	23892 KB	Output is correct
8	Correct	0 ms	344 KB	Output is correct
9	Correct	0 ms	344 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	1220 KB	Output is correct
13	Correct	121 ms	23944 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	3 ms	960 KB	Output is correct
17	Correct	65 ms	13884 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	33 ms	6420 KB	Output is correct
21	Correct	127 ms	23756 KB	Output is correct
22	Correct	131 ms	23888 KB	Output is correct
23	Correct	133 ms	23888 KB	Output is correct
24	Correct	119 ms	23896 KB	Output is correct
25	Correct	54 ms	13904 KB	Output is correct
26	Correct	50 ms	13908 KB	Output is correct
27	Correct	133 ms	23840 KB	Output is correct
28	Correct	122 ms	23896 KB	Output is correct

Subtask #3
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	1 ms	348 KB	Output is correct
4	Incorrect	0 ms	460 KB	Answer gives possible 1 while actual possible 0
5	Halted	0 ms	0 KB	-

Subtask #4
0 / 35.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Incorrect	348 KB	Too few ways to get from 0 to 1, should be 2 found 0
3	Halted	0 KB	-

Subtask #5
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	5 ms	1240 KB	Output is correct
7	Correct	131 ms	23892 KB	Output is correct
8	Correct	0 ms	344 KB	Output is correct
9	Correct	0 ms	344 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	1220 KB	Output is correct
13	Correct	121 ms	23944 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	3 ms	960 KB	Output is correct
17	Correct	65 ms	13884 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	33 ms	6420 KB	Output is correct
21	Correct	127 ms	23756 KB	Output is correct
22	Correct	131 ms	23888 KB	Output is correct
23	Correct	133 ms	23888 KB	Output is correct
24	Correct	119 ms	23896 KB	Output is correct
25	Correct	54 ms	13904 KB	Output is correct
26	Correct	50 ms	13908 KB	Output is correct
27	Correct	133 ms	23840 KB	Output is correct
28	Correct	122 ms	23896 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Incorrect	0 ms	460 KB	Answer gives possible 1 while actual possible 0
33	Halted	0 ms	0 KB	-

Subtask #6
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	5 ms	1240 KB	Output is correct
7	Correct	131 ms	23892 KB	Output is correct
8	Correct	0 ms	344 KB	Output is correct
9	Correct	0 ms	344 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	1220 KB	Output is correct
13	Correct	121 ms	23944 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	3 ms	960 KB	Output is correct
17	Correct	65 ms	13884 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	33 ms	6420 KB	Output is correct
21	Correct	127 ms	23756 KB	Output is correct
22	Correct	131 ms	23888 KB	Output is correct
23	Correct	133 ms	23888 KB	Output is correct
24	Correct	119 ms	23896 KB	Output is correct
25	Correct	54 ms	13904 KB	Output is correct
26	Correct	50 ms	13908 KB	Output is correct
27	Correct	133 ms	23840 KB	Output is correct
28	Correct	122 ms	23896 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Incorrect	0 ms	460 KB	Answer gives possible 1 while actual possible 0
33	Halted	0 ms	0 KB	-

Submission #1063338

Compilation message

Subtask #1 11.0 / 11.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 19.0

Subtask #4 0 / 35.0

Subtask #5 0 / 21.0

Subtask #6 0 / 4.0

Subtask #1
11.0 / 11.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 19.0

Subtask #4
0 / 35.0

Subtask #5
0 / 21.0

Subtask #6
0 / 4.0