#include "popa.h"
#include <bits/stdc++.h>
using namespace std;
void guess(int s, int e, int p, int* left, int* right){
//printf("at %d %d from %d\n",s,e,p);
if (s > e){
left[s] = -1;
right[s] = -1;
return;
}
if (s == e){
if (e == p-1){
left[p] = e;
}
else if (s == p+1){
right[p] = s;
}
left[s] = right[s] = -1;
return;
}
int ans = 0;
for (int i = s; i <= e; i++){
if (query(s,i,i,e)){
ans = i;
break;
}
}
if (e == p-1){
left[p] = ans;
}
else if (s == p+1){
right[p] = ans;
}
if (s <= ans-1) guess(s,ans-1,ans,left,right);
else left[ans] = -1;
if (ans+1 <= e) guess(ans+1,e,ans,left,right);
else right[ans] = -1;
return;
}
int solve(int N, int* left, int* right){
int s;
for (int i = 0; i < n; i++){
if (query(0,i,i,n-1)){
s = i;
break;
}
}
guess(0,s-1,s,left,right);
guess(s+1,n-1,s,left,right);
}
Compilation message
popa.cpp: In function 'int solve(int, int*, int*)':
popa.cpp:42:25: error: 'n' was not declared in this scope
for (int i = 0; i < n; i++){
^
popa.cpp:49:15: error: 'n' was not declared in this scope
guess(s+1,n-1,s,left,right);
^
popa.cpp:50:1: warning: no return statement in function returning non-void [-Wreturn-type]
}
^
