oj.uz

Submission #1063325

# Submission time Handle Problem Language Result Execution time Memory
1063325 2024-08-17T16:53:57 Z jamjanek Connecting Supertrees (IOI20_supertrees) C++14
21 / 100
 178 ms 24148 KB 
#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 policz = 0;
			for(j=0;j<n;j++)
				if(p[i][j]==2)policz++;
			assert(policz!=1);
			int mini = i;
			for(j=0;j<n;j++)
				if(p[i][j]==2 && find2(j)==j && j<mini){
					j = mini;
				}
			if(mini!=i)
				cykle[mini].push_back(i);
		}
	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 352 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 125 ms 23972 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 352 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 125 ms 23972 KB Output is correct
8 Correct 1 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 1 ms 348 KB Output is correct
12 Correct 8 ms 1372 KB Output is correct
13 Correct 150 ms 23972 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 65 ms 14164 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 32 ms 6336 KB Output is correct
21 Correct 131 ms 24008 KB Output is correct
22 Correct 135 ms 24148 KB Output is correct
23 Correct 173 ms 23968 KB Output is correct
24 Correct 172 ms 24004 KB Output is correct
25 Correct 59 ms 14168 KB Output is correct
26 Correct 50 ms 14160 KB Output is correct
27 Correct 178 ms 24088 KB Output is correct
28 Correct 139 ms 23972 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Runtime error 1 ms 604 KB Execution killed with signal 6
5 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Too few ways to get from 0 to 1, should be 2 found 0
3 Halted 0 ms 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 352 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 125 ms 23972 KB Output is correct
8 Correct 1 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 1 ms 348 KB Output is correct
12 Correct 8 ms 1372 KB Output is correct
13 Correct 150 ms 23972 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 65 ms 14164 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 32 ms 6336 KB Output is correct
21 Correct 131 ms 24008 KB Output is correct
22 Correct 135 ms 24148 KB Output is correct
23 Correct 173 ms 23968 KB Output is correct
24 Correct 172 ms 24004 KB Output is correct
25 Correct 59 ms 14168 KB Output is correct
26 Correct 50 ms 14160 KB Output is correct
27 Correct 178 ms 24088 KB Output is correct
28 Correct 139 ms 23972 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Runtime error 1 ms 604 KB Execution killed with signal 6
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 352 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 125 ms 23972 KB Output is correct
8 Correct 1 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 1 ms 348 KB Output is correct
12 Correct 8 ms 1372 KB Output is correct
13 Correct 150 ms 23972 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 65 ms 14164 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 32 ms 6336 KB Output is correct
21 Correct 131 ms 24008 KB Output is correct
22 Correct 135 ms 24148 KB Output is correct
23 Correct 173 ms 23968 KB Output is correct
24 Correct 172 ms 24004 KB Output is correct
25 Correct 59 ms 14168 KB Output is correct
26 Correct 50 ms 14160 KB Output is correct
27 Correct 178 ms 24088 KB Output is correct
28 Correct 139 ms 23972 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Runtime error 1 ms 604 KB Execution killed with signal 6
33 Halted 0 ms 0 KB -