제출 #992568

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
992568		vqpahmad	마술쇼 (APIO24_show)	C++17	100 / 100	267 ms	195804 KiB

Alice

#include<bits/stdc++.h>
#include "Alice.h"
using namespace std;
#ifdef ONPC
#include"debug.h"
#else
#define debug(...) 42
#endif
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
const int mod = 1e9 + 7;
const int MAXN = 5000;
const int inf = 0x3f3f3f3f;
const ll INF = 0x3f3f3f3f3f3f3f3f;

// you may define some global variables, but it does not work if you try to transfer any information from function Alice() to function Bob() through these variables.
// you had better not use the same global variables in function Alice() and in function Bob().
struct DSU {
	int p[MAXN], s[MAXN];
	void init(){
		for (int i = 0; i < MAXN; i++){
			p[i] = i;
			s[i] = 1;
		}
	}
	int find(int u){
		if (p[u] == u) return u;
		return p[u] = find(p[u]);
	}
	void merge(int u, int v){
		u = find(u);
		v = find(v);
		if (s[u] < s[v]) swap(u, v);
		s[u] += s[v];
		p[v] = u;
		return;
	}
} dsu;

int edges[MAXN][MAXN];
vector<pair<int,int>> Alice(){
	srand(14);
	for (int i = 0; i < 5000; i++){
		for (int j = i + 1; j < 5000; j++){
			edges[i][j] = rand() % 60;
			edges[j][i] = edges[i][j];
		}
	}
	long long x = setN(5000);
	vector<pii> ans;
	dsu.init();
	set<int> st;
	while (sz(ans) < 4999){
		int u = rand() % 5000, v = rand() % 5000;
		bool flag = 1;
		for (int i = u; i < u + 5000 && flag; i++){
			for (int j = v; j < v + 5000 && flag; j++){
				int U = i % 5000, V = j % 5000;
				if (U == V) continue;
				if (dsu.find(U) != dsu.find(V) && ((x >> edges[U][V]) & 1)){
					st.insert(edges[U][V]);
					dsu.merge(U, V);
					ans.pb({U, V});
					flag = 0;
				}
			}
		}
	}
	for (int i = 0; i < sz(ans); i++){
		if (ans[i].F > ans[i].S) swap(ans[i].F, ans[i].S);
	}
	sort(all(ans));
	for (int i = 0; i < sz(ans); i++){
		ans[i].F++;
		ans[i].S++;
	}
	return ans;
}

Bob

#include<bits/stdc++.h>
#include "Bob.h"
using namespace std;
#ifdef ONPC
#include"debug.h"
#else
#define debug(...) 42
#endif
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
const int mod = 1e9 + 7;
const int MAXN = 1e6 + 15;
const int inf = 0x3f3f3f3f;
const ll INF = 0x3f3f3f3f3f3f3f3f;

// you may define some global variables, but it does not work if you try to transfer any information from function Alice() to function Bob() through these variables.
// you had better not use the same global variables in function Alice() and in function Bob().

int edges2[5001][5001];
long long Bob(std::vector<std::pair<int,int>> V){
	srand(14);
	for (int i = 0; i < 5000; i++){
		for (int j = i + 1; j < 5000; j++){
			edges2[i][j] = rand() % 60;
		}
	}
	ll ans = 0;
	set<int> st;
	for (auto [u, v] : V){
		st.insert(edges2[u - 1][v - 1]);
		ans |= (1ll << edges2[u - 1][v - 1]);
	}
	return ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 30 / 30
• Subtask 3: 65 / 65