Submission #1080337

#	Time	Username	Problem	Language	Result	Execution time	Memory
1080337		LCJLY	City (JOI17_city)	C++14	8 / 100	265 ms	49716 KiB

Encoder

#include "Encoder.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;
typedef pair<pii,int>pi2;
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

//Code(index,val)

vector<int>adj[250005];
int in[250005];
int out[250005];
int ptr=-1;

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

void Encode(int32_t N, int32_t A[], int32_t B[]){
	for(int x=0;x<N;x++){
		adj[A[x]].push_back(B[x]);
		adj[B[x]].push_back(A[x]);
	}
	
	dfs(0,-1);
	
	for(int x=0;x<N;x++){
		Code(x,in[x]*260001+out[x]);
	}
}

Device

#include "Device.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;
typedef pair<pii,int>pi2;
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());

void InitDevice(){
}

int32_t Answer(long long S, long long T){
	int l=S/260001;
	int r=S%260001;
	int l2=T/260001;
	int r2=T%260001;
	
	if(l<=l2&&r>=l2){
		return 1;
	}
	else if(l2<=l&&r2>=l){
		return 0;
	}
	else return 2;
}

• Subtask 1: 8 / 8
• Subtask 2: 0 / 92