#include <bits/stdc++.h>
#include "park.h"
using namespace std;
static int N;
static int P[2020];
static vector<int> V[2020];
static int Q[2020];
void f(int u){
vector<int> C;
for (int i=0; i<N; i++) Q[i] = 0;
for (int &v : V[u]){
Q[u] = Q[v] = 1;
if (u < v){
if (Ask(u, v, Q)){
C.push_back(v);
P[v] = u;
Q[u] = Q[v] = 0;
v = -1;
}
}
else{
if (Ask(v, u, Q)){
C.push_back(v);
P[v] = u;
Q[u] = Q[v] = 0;
v = -1;
}
}
Q[u] = Q[v] = 0;
}
for (int i=0; i<N; i++) Q[i] = 1;
for (int v : V[u]){
if (v == -1) continue;
int L = 0, R = C.size()-1, k;
while (L<=R){
int mid = (L+R)/2;
for (int i=0; i<=mid; i++) Q[C[i]] = 0;
if (u < v){
if (Ask(u, v, Q)) L = mid+1;
else k = mid, R = mid-1;
}
else{
if (Ask(v, u, Q)) L = mid+1;
else k = mid, R = mid-1;
}
for (int i=0; i<=mid; i++) Q[C[i]] = 1;
}
V[C[k]].push_back(v);
}
for (int v : C) f(v);
}
void Detect(int T, int n) {
N = n;
for (int i=1; i<N; i++) V[0].push_back(i);
f(0);
for (int i=1; i<N; i++){
if (P[i] < i) Answer(P[i], i);
else Answer(i, P[i]);
}
}
Compilation message
arranging_tickets.cpp:2:10: fatal error: park.h: No such file or directory
#include "park.h"
^~~~~~~~
compilation terminated.
