oj.uz

Submission #977458

# Submission time Handle Problem Language Result Execution time Memory
977458 2024-05-08T02:37:19 Z Amaarsaa Connecting Supertrees (IOI20_supertrees) C++14
40 / 100
 173 ms 22196 KB 
#include<bits/stdc++.h>
#include "supertrees.h"
using namespace std;
vector < int > adj[1002];
int ataman[10002], used[1002];
int Get(int x) {
	if ( x == ataman[x]) return x;
	return ataman[x] = Get(ataman[x]);
}
void Unite(int x, int y) {
	x = Get(x);
	y = Get(y);
	if (x == y) return ;
	if ( x < y) swap(x, y);
	ataman[x]= y;
}

int construct(vector<vector<int>> a) {
	int n = a.size(), i, j;
	vector < vector < int > > ans(n, vector<int>(n, 0));
	for (i = 0; i < n; i ++) ataman[i]= i;
	int s = 1;
	for (i = 0; i < n; i ++) ataman[i] = i;
	for (i = 0; i < n; i ++) {
		for (j = 0; j < n; j ++) {
			if ( a[i][j] == 2 && i != j) Unite(i, j);
		}
	}
	for (i = 0; i < n; i ++) used[i] = 0;
	for (i = 0; i < n; i ++) {
		for (j = 0; j < n; j ++) {
			if ( i == j) continue;
			if ( (a[i][j] == 0 || a[i][j] == 3) && Get(i) == Get(j)) s= 0;
			if ( a[i][j] == 2 && Get(i) != Get(j)) s = 0; 
		}
	}
	
	for (i = 0; i < n; i ++) {
		vector < int > v;
		v.push_back(i);
		for (j = i + 1; j < n; j ++) {
			if ( Get(j) == Get(i) && !used[j]) v.push_back(j);
		}
		if(v.size() == 1) continue;
		if ( v.size() == 2){
			s = 0;
			break;
		}
		used[i] = 1;
		for (j = 1; j < v.size(); j ++) {
			used[v[j]] = 1;
			ans[v[j]][v[j - 1]] = ans[v[j - 1]][v[j]] = 1;
		}
		ans[v[0]][v[v.size() -1]] = ans[v[v.size() -1]][v[0]] = 1;
		
	}
	for ( i = 0; i < n; i++) {
		for ( j = 0; j < n; j ++) {
			if ( a[i][j] == 1 && i != j) Unite(i, j);
		}
	}
	
	for (i = 0; i < n; i ++) {
		for (j = 0; j < n; j ++) {
			if ( i == j) continue;
			if ( (a[i][j] == 0 || a[i][j] == 3) && Get(i) == Get(j)) s= 0;
			if ( a[i][j] == 1 && Get(i) != Get(j)) s = 0; 
		}
	}
	
	for (i = 0; i < n; i ++) {
		vector < int > v;
		v.push_back(i);
		for (j = i + 1; j < n; j ++) {
			if ( Get(j) == Get(i) && !used[j]) v.push_back(j);
		}
		used[i] = 1;
		for (j = 1; j < v.size(); j ++) {
			used[v[j]] = 1;
			ans[v[j]][v[j - 1]] = ans[v[j - 1]][v[j]] = 1;
		}
		
	}
	
	if ( s == 0) return 0;
	build(ans);
	return s;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:50:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |   for (j = 1; j < v.size(); j ++) {
      |               ~~^~~~~~~~~~
supertrees.cpp:78:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |   for (j = 1; j < v.size(); j ++) {
      |               ~~^~~~~~~~~~

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 7 ms 1156 KB Output is correct
7 Correct 160 ms 21996 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 7 ms 1156 KB Output is correct
7 Correct 160 ms 21996 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 159 ms 22068 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 860 KB Output is correct
17 Correct 92 ms 12308 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 41 ms 5808 KB Output is correct
21 Correct 168 ms 22068 KB Output is correct
22 Correct 166 ms 22048 KB Output is correct
23 Correct 164 ms 22096 KB Output is correct
24 Correct 165 ms 22096 KB Output is correct
25 Correct 77 ms 12116 KB Output is correct
26 Correct 75 ms 12112 KB Output is correct
27 Correct 164 ms 22100 KB Output is correct
28 Correct 159 ms 22096 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 7 ms 1116 KB Output is correct
9 Correct 173 ms 22052 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1292 KB Output is correct
13 Correct 156 ms 22104 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 548 KB Output is correct
16 Correct 4 ms 860 KB Output is correct
17 Correct 90 ms 12084 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 41 ms 5828 KB Output is correct
22 Correct 163 ms 22100 KB Output is correct
23 Correct 158 ms 22072 KB Output is correct
24 Correct 162 ms 22048 KB Output is correct
25 Correct 74 ms 12112 KB Output is correct
26 Correct 74 ms 12064 KB Output is correct
27 Correct 162 ms 22100 KB Output is correct
28 Correct 159 ms 22096 KB Output is correct
29 Correct 75 ms 12116 KB Output is correct

Subtask #4
0 / 35.0

# 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 Correct 42 ms 5892 KB Output is correct
5 Correct 163 ms 22100 KB Output is correct
6 Correct 164 ms 22196 KB Output is correct
7 Correct 162 ms 22096 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 40 ms 5724 KB Output is correct
10 Correct 166 ms 22100 KB Output is correct
11 Correct 162 ms 22036 KB Output is correct
12 Correct 161 ms 21984 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Incorrect 1 ms 348 KB Too many ways to get from 0 to 4, should be 1 found no less than 2
16 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 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 7 ms 1156 KB Output is correct
7 Correct 160 ms 21996 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 159 ms 22068 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 860 KB Output is correct
17 Correct 92 ms 12308 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 41 ms 5808 KB Output is correct
21 Correct 168 ms 22068 KB Output is correct
22 Correct 166 ms 22048 KB Output is correct
23 Correct 164 ms 22096 KB Output is correct
24 Correct 165 ms 22096 KB Output is correct
25 Correct 77 ms 12116 KB Output is correct
26 Correct 75 ms 12112 KB Output is correct
27 Correct 164 ms 22100 KB Output is correct
28 Correct 159 ms 22096 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1116 KB Output is correct
37 Correct 173 ms 22052 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1292 KB Output is correct
41 Correct 156 ms 22104 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 1 ms 548 KB Output is correct
44 Correct 4 ms 860 KB Output is correct
45 Correct 90 ms 12084 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 41 ms 5828 KB Output is correct
50 Correct 163 ms 22100 KB Output is correct
51 Correct 158 ms 22072 KB Output is correct
52 Correct 162 ms 22048 KB Output is correct
53 Correct 74 ms 12112 KB Output is correct
54 Correct 74 ms 12064 KB Output is correct
55 Correct 162 ms 22100 KB Output is correct
56 Correct 159 ms 22096 KB Output is correct
57 Correct 75 ms 12116 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 4 ms 860 KB Output is correct
61 Correct 101 ms 12116 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Incorrect 40 ms 5724 KB Too many ways to get from 1 to 269, should be 1 found no less than 2
66 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 7 ms 1156 KB Output is correct
7 Correct 160 ms 21996 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 159 ms 22068 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 860 KB Output is correct
17 Correct 92 ms 12308 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 41 ms 5808 KB Output is correct
21 Correct 168 ms 22068 KB Output is correct
22 Correct 166 ms 22048 KB Output is correct
23 Correct 164 ms 22096 KB Output is correct
24 Correct 165 ms 22096 KB Output is correct
25 Correct 77 ms 12116 KB Output is correct
26 Correct 75 ms 12112 KB Output is correct
27 Correct 164 ms 22100 KB Output is correct
28 Correct 159 ms 22096 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1116 KB Output is correct
37 Correct 173 ms 22052 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1292 KB Output is correct
41 Correct 156 ms 22104 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 1 ms 548 KB Output is correct
44 Correct 4 ms 860 KB Output is correct
45 Correct 90 ms 12084 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 41 ms 5828 KB Output is correct
50 Correct 163 ms 22100 KB Output is correct
51 Correct 158 ms 22072 KB Output is correct
52 Correct 162 ms 22048 KB Output is correct
53 Correct 74 ms 12112 KB Output is correct
54 Correct 74 ms 12064 KB Output is correct
55 Correct 162 ms 22100 KB Output is correct
56 Correct 159 ms 22096 KB Output is correct
57 Correct 75 ms 12116 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 42 ms 5892 KB Output is correct
62 Correct 163 ms 22100 KB Output is correct
63 Correct 164 ms 22196 KB Output is correct
64 Correct 162 ms 22096 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 40 ms 5724 KB Output is correct
67 Correct 166 ms 22100 KB Output is correct
68 Correct 162 ms 22036 KB Output is correct
69 Correct 161 ms 21984 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 1 ms 348 KB Output is correct
72 Incorrect 1 ms 348 KB Too many ways to get from 0 to 4, should be 1 found no less than 2
73 Halted 0 ms 0 KB -