oj.uz

Submission #1059015

# Submission time Handle Problem Language Result Execution time Memory
1059015 2024-08-14T16:03:25 Z Lalic Connecting Supertrees (IOI20_supertrees) C++17
21 / 100
 130 ms 24148 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
#define allr(x) x.rbegin(), x.rend()
#define mp make_pair

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef complex<double> cd;

const int MAXN = 1e3+10;

int pai[MAXN], peso[MAXN];

int find(int x){ return (pai[x]==x ? x : pai[x]=find(pai[x])); }
void join(int a, int b){
	a=find(a);
	b=find(b);
	
	if(a==b) return;
	
	if(peso[a]>peso[b]) swap(a, b);
	pai[a]=b;
	peso[b]=max(peso[a]+1, peso[b]);
}

vector<int> adj[MAXN];

int construct(vector<vector<int>> p) {
	int n = (int)p.size();
	vector<vector<int>> ans(n, vector<int>(n, 0));
	
	for(int i=0;i<n;i++) pai[i]=i, peso[i]=0;
	
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]==1 && find(i)!=find(j)){
				join(i, j);
				adj[i].pb(j);
				ans[i][j]=ans[j][i]=1;
			}
		}
	}
	
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(!p[i][j] && find(i)==find(j)){
				//~ cout << i << " " << j << "\n";
				return 0;
			}
		}
	}
	
	build(ans);
	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 4 ms 1116 KB Output is correct
7 Correct 97 ms 22080 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 4 ms 1116 KB Output is correct
7 Correct 97 ms 22080 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1136 KB Output is correct
13 Correct 96 ms 21972 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 984 KB Output is correct
17 Correct 48 ms 14244 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 6236 KB Output is correct
21 Correct 97 ms 24148 KB Output is correct
22 Correct 98 ms 24008 KB Output is correct
23 Correct 103 ms 23972 KB Output is correct
24 Correct 93 ms 24144 KB Output is correct
25 Correct 44 ms 14248 KB Output is correct
26 Correct 40 ms 14160 KB Output is correct
27 Correct 130 ms 24100 KB Output is correct
28 Correct 92 ms 24148 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 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 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 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 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 4 ms 1116 KB Output is correct
7 Correct 97 ms 22080 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1136 KB Output is correct
13 Correct 96 ms 21972 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 984 KB Output is correct
17 Correct 48 ms 14244 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 6236 KB Output is correct
21 Correct 97 ms 24148 KB Output is correct
22 Correct 98 ms 24008 KB Output is correct
23 Correct 103 ms 23972 KB Output is correct
24 Correct 93 ms 24144 KB Output is correct
25 Correct 44 ms 14248 KB Output is correct
26 Correct 40 ms 14160 KB Output is correct
27 Correct 130 ms 24100 KB Output is correct
28 Correct 92 ms 24148 KB Output is correct
29 Correct 0 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 Incorrect 0 ms 348 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 4 ms 1116 KB Output is correct
7 Correct 97 ms 22080 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1136 KB Output is correct
13 Correct 96 ms 21972 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 984 KB Output is correct
17 Correct 48 ms 14244 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 6236 KB Output is correct
21 Correct 97 ms 24148 KB Output is correct
22 Correct 98 ms 24008 KB Output is correct
23 Correct 103 ms 23972 KB Output is correct
24 Correct 93 ms 24144 KB Output is correct
25 Correct 44 ms 14248 KB Output is correct
26 Correct 40 ms 14160 KB Output is correct
27 Correct 130 ms 24100 KB Output is correct
28 Correct 92 ms 24148 KB Output is correct
29 Correct 0 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 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -