Submission #585638

#	Time	Username	Problem	Language	Result	Execution time	Memory
585638		zaneyu	City (JOI17_city)	C++14	100 / 100	559 ms	58316 KiB

Encoder

#include "Encoder.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
//order_of_key #of elements less than x
// find_by_order kth element
typedef long long int ll;
#define ld long double
#define pii pair<int,int>
typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
const ll maxn=5e5+5;
const ll maxlg=__lg(maxn)+2;
const ll INF64=4e18;
const int INF=0x3f3f3f3f;
const ll MOD=998244353;
const ld PI=acos(-1);
const ld eps=1e-9;
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
int in[maxn];
int cnt=0;
vector<int> v[maxn];
void dfs(int u,int p){
	in[u]=(cnt++);
	for(int x:v[u]){
		if(x==p) continue;
		dfs(x,u);
	}
	int sz=cnt-in[u];
	double cur=1.0,w=1.05;
	int pw=0;
	while((int)cur<sz) cur=cur*w,++pw;
	cnt=in[u]+(int)cur;
	Code(u,pw*maxn+in[u]);
}
void Encode(int n, int A[], int B[])
{
	REP(i,n-1) v[A[i]].pb(B[i]),v[B[i]].pb(A[i]);
	dfs(0,-1);
}

Device

#include "Device.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
//order_of_key #of elements less than x
// find_by_order kth element
typedef long long int ll;
#define ld long double
#define pii pair<int,int>
typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
const ll maxn=5e5+5;
const ll maxlg=__lg(maxn)+2;
const ll INF64=4e18;
const int INF=0x3f3f3f3f;
const ll MOD=998244353;
const ld PI=acos(-1);
const ld eps=1e-9;
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
ld ans[maxn];
void InitDevice(){
	ans[0]=1.0;
	REP1(i,2050) ans[i]=ans[i-1]*1.05;
}

int Answer(long long S, long long T)
{
	int si=S%maxn,so=(int)ans[(S/maxn)]+si;
	int ti=T%maxn,to=(int)ans[(T/maxn)]+ti;
	if(si<=ti and to<=so) return 1;
	if(ti<=si and so<=to) return 0;
	return 2;
}

• Subtask 1: 8 / 8
• Subtask 2: 92 / 92