Submission #1080331

#	Time	Username	Problem	Language	Result	Execution time	Memory
1080331		kwongweng	City (JOI17_city)	C++17	8 / 100	261 ms	42072 KiB

Encoder

#include "Encoder.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
typedef long long ll;
#define FOR(i,a,b) for(int i=a; i<b; i++)
#define ROF(i,a,b) for(int i=a; i>=b; i--)
#define pb push_back

const ll N = 250000;
vi g[N], p(N);
vector<ll> sz(N), tin(N);
int cnt = 0;

void dfs(int u){
	tin[u] = cnt++; sz[u]=1;
	for (int v : g[u]){
		if (p[u]==v) continue;
		p[v]=u; dfs(v); sz[u] += sz[v];
	}
	Code(u,tin[u]*N + sz[u]);
}
void Encode(int n, int A[], int B[])
{
	FOR(i,0,n-1){
		g[A[i]].pb(B[i]); g[B[i]].pb(A[i]);
	}
	dfs(0);
}

Device

#include "Device.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
typedef long long ll;
#define FOR(i,a,b) for(int i=a; i<b; i++)
#define ROF(i,a,b) for(int i=a; i>=b; i--)
#define pb push_back

const ll N = 250000;

void InitDevice()
{
}

int Answer(long long S, long long T)
{
	//cout<<S/N<<" "<<S%N<<" "<<T/N<<" "<<T%N<<"\n";
	if (S<T){
		if (T/N < S/N + S%N) return 1;
		return 2;
	}
	if (S/N < T/N + T%N) return 0;
	return 2;
}

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