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Submission #247131

# Submission time Handle Problem Language Result Execution time Memory
247131 2020-07-11T06:32:22 Z oolimry Lokahian Relics (FXCUP4_lokahia) C++17
0 / 100
 1000 ms 688 KB 
#include "lokahia.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> ii;

int p[205];
int sz[205];

int findSet(int u){
	if(u == p[u]) return u;
	else return findSet(p[u]);
}

int SZ(int u){ return sz[findSet(u)]; }

void unionSet(int u, int P){
	u = findSet(u), P = findSet(P);
	p[u] = P;
	sz[P] += sz[u];
}

int FindBase(int N){
	srand(time(NULL));
	vector<int> v;
	
	for(int i = 0;i < N;i++) v.push_back(i);
	
	for(int i = 0;i < N;i++){
		p[i] = i;
		sz[i] = 1;
	}
	
	int cnt = 0;
	while(cnt < 300){
		int sz = v.size();
		int i = rand() % (sz);
		int j = rand() % (sz);
		if(i > j) swap(i,j);
		if(i == j) continue;
		
		int a = v[i], b = v[j];
		
		int x = CollectRelics(a, b);
		cnt++;
		if(x == -1) continue;
		
		vector<int> nxt;
		for(int k : v){
			if(k != a && k != b) nxt.push_back(k);
		}
		
		nxt.push_back(x);
		v = nxt;
		nxt.clear();
		
		if(a != x) unionSet(a,x);
		if(b != x) unionSet(b,x);
		if(SZ(x) > (N/2)){
			//cout << x << "\n";
			return x;
		}
		
	}
	
	//assert(false);
	return -1;
}

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 688 KB Correct : C = 300
2 Execution timed out 1095 ms 512 KB Time limit exceeded
3 Correct 5 ms 512 KB Correct : C = 196
4 Incorrect 5 ms 640 KB Wrong
5 Incorrect 5 ms 512 KB Wrong
6 Correct 5 ms 640 KB Correct : C = 300
7 Correct 5 ms 640 KB Correct : C = 52
8 Incorrect 5 ms 640 KB Wrong
9 Correct 5 ms 640 KB Correct : C = 300
10 Incorrect 5 ms 640 KB Wrong
11 Correct 5 ms 512 KB Correct : C = 33
12 Correct 5 ms 512 KB Correct : C = 1
13 Incorrect 5 ms 512 KB Wrong
14 Incorrect 5 ms 512 KB Wrong
15 Incorrect 6 ms 640 KB Wrong
16 Incorrect 5 ms 512 KB Wrong
17 Incorrect 5 ms 640 KB Wrong
18 Incorrect 5 ms 512 KB Wrong
19 Incorrect 5 ms 640 KB Wrong
20 Incorrect 5 ms 640 KB Wrong
21 Incorrect 5 ms 512 KB Wrong
22 Correct 5 ms 640 KB Correct : C = 300
23 Correct 5 ms 512 KB Correct : C = 300
24 Correct 5 ms 640 KB Correct : C = 200
25 Incorrect 5 ms 640 KB Wrong
26 Incorrect 6 ms 640 KB Wrong
27 Correct 5 ms 512 KB Correct : C = 300