//Never stop trying
#include "squarerect.h"
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template <typename T>
using ordered_set=tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//s.order_of_key(), *s.find_by_order()
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
typedef string str;
typedef long long ll;
#define int ll
typedef double db;
typedef long double ld;
typedef pair<int,int> pi;
#define fi first
#define se second
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<str> vs;
typedef vector<pi> vpi;
#define pb push_back
#define eb emplace_back
#define pf push_front
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"
const int MOD = 1e9+7; //998244353
const ll INF = 1e18;
const int nx[4]={0,0,1,-1}, ny[4]={1,-1,0,0}; //right left down up
//bool inside_shape(int x, int y){}
bool am_i_square(int N, int Q){
int mnx=INF,mny=INF,mxx=-1,mxy=-1;
for(int i=20; i<=80; i+=20) for(int j=20; j<=80; j+=20) if(inside_shape(i,j)){
mnx=min(mnx,i); mny=min(mny,j); mxx=max(mxx,i); mxy=max(mxy,j);
}
if(mxx!=-1){
int l=mnx-20+1,r=mnx;
while(l<r){
int m=(l+r)/2;
if(!inside_shape(m,mny)) l=m+1;
else r=m;
}
mnx=l;
l=mny-20+1;r=mny;
while(l<r){
int m=(l+r)/2;
if(!inside_shape(mnx,m)) l=m+1;
else r=m;
}
mny=l;
l=mxx; r=mxx+20-1;
while(l<r){
int m=(l+r)/2;
if(!inside_shape(m,mny)) l=m+1;
else r=m;
}
mxx=l;
if(!inside_shape(mnx,mny+mxx-mnx)) return false;
if(inside_shape(mnx,mny+mxx-mnx+1)) return false;
return true;
}
else{
int nb=0;
int x,y;
for(int i=20; i<=100; i+=20) if(inside_shape(i,100)){
nb++;
x=i; y=100;
}
if(nb>1) return false;
if(nb){
int l=x-20+1,r=x;
while(l<x){
int m=(l+r)/2;
if(!inside_shape(m,y)) l=m+1;
else r=m;
}
x=l;
if(!inside_shape(x+19,y)) return false;
if(inside_shape(x+20,y)) return false;
return true;
}
for(int j=20; j<=80; j++) if(inside_shape(100,j)){
nb++;
x=100; y=j;
}
if(nb>1) return false;
int l=y-20+1,r=y;
while(l<x){
int m=(l+r)/2;
if(!inside_shape(x,m)) l=m+1;
else r=m;
}
y=l;
if(!inside_shape(x,y+19)) return false;
if(inside_shape(x,y+20)) return false;
return true;
}
}
/*int32_t main(){
boost;
return 0;
}*/
Compilation message
squarerect.cpp: In function 'bool am_i_square(ll, ll)':
squarerect.cpp:90:14: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
int l=x-20+1,r=x;
^
/tmp/ccW1Pkpe.o: In function `main':
grader.cpp:(.text.startup+0x57): undefined reference to `am_i_square(int, int)'
collect2: error: ld returned 1 exit status
