Submission #67509

#	Time	Username	Problem	Language	Result	Execution time	Memory
67509		reality	City (JOI17_city)	C++17	100 / 100	539 ms	88040 KiB

Encoder

#include "Encoder.h"
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define vii vector < pii >
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template < class P , class Q > ostream& operator<<(ostream& stream, pair < P , Q > v){ stream << "(" << v.fi << ',' << v.se << ")"; return stream;}
template < class T > ostream& operator<<(ostream& stream, const vector<T> v){ stream << "[ "; for (int i=0; i<(int)v.size(); i++) stream << v[i] << " "; stream << "]"; return stream;}
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}

static const int N = 1e6;

static const db w = 1.05;

static int len[N];

static int wh[N];

vi g[N + 69];

static int T = -1;

void dfs(int node = 0,int prev = -1) {
	int beg = ++T;
	for (auto it : g[node])
		if (it != prev)
			dfs(it,node);
	int cnt = lower_bound(len,len + 256,T - beg + 1) - len;
	T = beg + len[cnt] - 1;
	Code(node,1ll * cnt * N + beg);
}

void Encode(int NN, int A[], int B[]) {
	int n = NN;
	for (int i = 0;i + 1 < n;++i) {
		g[A[i]].pb(B[i]);
		g[B[i]].pb(A[i]);
	}
	len[0] = 1;
	for (int i = 1;i < 256;++i)
		len[i] = max(len[i - 1] + 1,(int)(w * len[i - 1]));
	dfs();
}

Device

#include "Device.h"
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define vii vector < pii >
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template < class P , class Q > ostream& operator<<(ostream& stream, pair < P , Q > v){ stream << "(" << v.fi << ',' << v.se << ")"; return stream;}
template < class T > ostream& operator<<(ostream& stream, const vector<T> v){ stream << "[ "; for (int i=0; i<(int)v.size(); i++) stream << v[i] << " "; stream << "]"; return stream;}
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}

static const int N = 1e6;

static const db w = 1.05;

static int len[N];


void InitDevice() {
	len[0] = 1;
	for (int i = 1;i < 256;++i)
		len[i] = max(len[i - 1] + 1,(int)(w * len[i - 1]));
}

int Answer(ll S,ll T) {
	int a = S % N;
	int b = a + len[(S / N)] - 1;
	int c = T % N;
	int d = c + len[(T / N)] - 1;
	if (c <= a && b <= d)
		return 0;
	if (a <= c && d <= b)
		return 1;
	return 2;
}

Compilation message (stderr)

Encoder.cpp:27:12: warning: 'wh' defined but not used [-Wunused-variable]
 static int wh[N];
            ^~

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