oj.uz

Submission #366629

# Submission time Handle Problem Language Result Execution time Memory
366629 2021-02-14T19:54:40 Z SlavicG Connecting Supertrees (IOI20_supertrees) C++17
21 / 100
 372 ms 27372 KB 
#include "supertrees.h"
#include "bits/stdc++.h"

using namespace std;
 
#define              ll              long long
 
#define       forn(i,n)              for(int i=0;i<n;i++)
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()
#define         fastio               ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = 1001;
vector<int> adj[N];
bool vis[N];
vector<int> component;

int par[N];
int get(int a){
	while(par[a]!=a)a=par[a];
	return a;
}
void uni(int a,int b){
	a = get(a);
	b = get(b);
	if(a==b)return;
	par[b] = a;
}
void dfs(int u)
{
	vis[u] = true;
	component.pb(u);
	for(auto x : adj[u]){
		if(!vis[x])dfs(x);
	}
}
int construct(vector<vector<int>> p)
{
	int n = sz(p);
	vector<vector<int>> ans;
	ans.resize(n);
	for(int i=0;i < n;i++)
		par[i]=i;
	for(int i =0;i < n;i++)ans[i].resize(n);
	forn(i,n)forn(j,n)ans[i][j]=0;
	bool two = false;
	for(int i = 0;i < n;i++)
	{
		for(int j = 0;j < n;j++)
		{
			if(p[i][j]==2)two=true;
			if(p[i][j]){
				uni(i,j);
				adj[i].pb(j);
			}
		}
	}
	for(int i = 0;i < n;i++)
	{
		for(int j =0;j < n;j++)
		{
			if(get(i)==get(j) && !p[i][j])return 0;
		}
	}
	for(int i = 0;i < n;i++)
	{
		if(!vis[i]){
			component.clear();
			dfs(i);
			for(int j = 1;j < sz(component);j++)
			{
				ans[component[j]][component[j-1]] = ans[component[j-1]][component[j]] = 1; 
			}
			if(two)ans[component.back()][component[0]] = ans[component[0]][component.back()] = 1;
		}
	}
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1516 KB Output is correct
7 Correct 310 ms 27372 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1516 KB Output is correct
7 Correct 310 ms 27372 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 266 ms 23276 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 6 ms 1004 KB Output is correct
17 Correct 126 ms 15340 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 71 ms 6380 KB Output is correct
21 Correct 260 ms 23404 KB Output is correct
22 Correct 372 ms 22892 KB Output is correct
23 Correct 304 ms 25056 KB Output is correct
24 Correct 260 ms 22892 KB Output is correct
25 Correct 114 ms 13932 KB Output is correct
26 Correct 122 ms 13564 KB Output is correct
27 Correct 278 ms 25964 KB Output is correct
28 Correct 271 ms 22892 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 364 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 87 ms 6380 KB Output is correct
5 Correct 261 ms 24556 KB Output is correct
6 Correct 259 ms 24172 KB Output is correct
7 Correct 283 ms 26092 KB Output is correct
8 Incorrect 1 ms 364 KB b[4][4] is not 0
9 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1516 KB Output is correct
7 Correct 310 ms 27372 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 266 ms 23276 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 6 ms 1004 KB Output is correct
17 Correct 126 ms 15340 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 71 ms 6380 KB Output is correct
21 Correct 260 ms 23404 KB Output is correct
22 Correct 372 ms 22892 KB Output is correct
23 Correct 304 ms 25056 KB Output is correct
24 Correct 260 ms 22892 KB Output is correct
25 Correct 114 ms 13932 KB Output is correct
26 Correct 122 ms 13564 KB Output is correct
27 Correct 278 ms 25964 KB Output is correct
28 Correct 271 ms 22892 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Incorrect 1 ms 364 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 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1516 KB Output is correct
7 Correct 310 ms 27372 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 266 ms 23276 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 6 ms 1004 KB Output is correct
17 Correct 126 ms 15340 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 71 ms 6380 KB Output is correct
21 Correct 260 ms 23404 KB Output is correct
22 Correct 372 ms 22892 KB Output is correct
23 Correct 304 ms 25056 KB Output is correct
24 Correct 260 ms 22892 KB Output is correct
25 Correct 114 ms 13932 KB Output is correct
26 Correct 122 ms 13564 KB Output is correct
27 Correct 278 ms 25964 KB Output is correct
28 Correct 271 ms 22892 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Incorrect 1 ms 364 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -