Submission #1174258

#	Time	Username	Problem	Language	Result	Execution time	Memory
1174258		mertbbm	Amusement Park (JOI17_amusement_park)	C++20	0 / 100	15 ms	1972 KiB

Joi

#include "Joi.h"
#include <bits/stdc++.h>
using namespace std;

#define int long long 
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<int,int>pii;
mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

//MessageBoard(index,val)

struct DSU{
	vector<int>e;
	void init(int n){
		e=vector<int>(n,-1);
	}
	
	int get(int x){
		return e[x]<0?x:e[x]=get(e[x]);
	}
	
	bool unite(int x, int y){
		x=get(x); y=get(y);
		if(x==y) return 0;
		if(e[x]>e[y]) swap(x,y);
		e[x]+=e[y];
		e[y]=x;
		return 1;
	}
};

vector<int>adj[10005];
int in[10005];
int ptr=-1;
vector<int>storage[65];

void dfs(int index, int par){
	in[index]=++ptr;
	storage[in[index]%60].push_back(index);
	for(auto it:adj[index]){
		if(it==par) continue;
		dfs(it,index);
	}
}

void Joi(int32_t n, int32_t m, int32_t a[], int32_t b[], long long val, int32_t t){
	DSU dsu;
	dsu.init(n+5);
	for(int x=0;x<m;x++){
		if(dsu.unite(a[x],b[x])){
			adj[a[x]].push_back(b[x]);
			adj[b[x]].push_back(a[x]);
		}
	}
	dfs(0,-1);
	for(int x=0;x<60;x++){
		if(val&(1LL<<x)){
			for(auto it:storage[x]){
				MessageBoard(it,1);
			}
		}
		else{
			for(auto it:storage[x]){
				MessageBoard(it,0);
			}
		}
	}
}

Ioi

#include "Ioi.h"
#include <bits/stdc++.h>
using namespace std;

#define int long long 
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<int,int>pii;
mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

//MessageBoard(index,val)

struct DSU{
	vector<int>e;
	void init(int n){
		e=vector<int>(n,-1);
	}
	
	int get(int x){
		return e[x]<0?x:e[x]=get(e[x]);
	}
	
	bool unite(int x, int y){
		x=get(x); y=get(y);
		if(x==y) return 0;
		if(e[x]>e[y]) swap(x,y);
		e[x]+=e[y];
		e[y]=x;
		return 1;
	}
};

vector<int>adj[10005];
int in[10005];
int ptr=-1;
int pp[10005];

void dfs(int index, int par){
	in[index]=++ptr;
	for(auto it:adj[index]){
		if(it==par) continue;
		dfs(it,index);
		pp[it]=index;
	}
}

int ans[60];

int cnt=0;
void f(int index){
	if(cnt>200) return;
	//~ cnt++;	
	int hold=Move(index);
	ans[in[index]%60]=hold;
}

bool visited[10005];
void dfs2(int index, int par){
	visited[index]=true;
	for(auto it:adj[index]){
		if(it==par) continue;
		if(visited[it]) continue;
		f(it);
		dfs2(it,index);
	}
	if(par!=-1)f(par);
}

long long Ioi(int32_t n, int32_t m, int32_t a[], int32_t b[], int32_t p, int32_t v, int32_t t){
	DSU dsu;
	dsu.init(n+5);
	for(int x=0;x<m;x++){
		if(dsu.unite(a[x],b[x])){
			adj[a[x]].push_back(b[x]);
			adj[b[x]].push_back(a[x]);
		}
	}
	memset(pp,-1,sizeof(pp));
	dfs(0,-1);
	
	memset(ans,-1,sizeof(ans));
	
	ans[in[p]%60]=v;
	
	dfs2(p,pp[p]);
	
	int take=0;
	for(int x=0;x<60;x++){
		take+=(1LL<<x)*ans[x];
	}
	return take;
	
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 55
• Subtask 5: 0 / 17