#include <bits/stdc++.h>
#define f first
#define s second
#define ent '\n'
#define int long long
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
using namespace std;
typedef long long ll;
const int mx=1e6+12;
const int mod=1e9+7;
int dx[]={1,-1,0,0,1,-1,1,-1};
int dy[]={0,0,1,-1,1,-1,-1,1};
map<int,int> pref;
int cal[mx];
int L[mx];
int R[mx];
int x[mx];
int y[mx];
int a[mx];
int b[mx];
int n,m,k;
bool check(int x,int y){
if(max(x,y)>k)return 0;
return x*x+y*y<=k*k;
}
void Press_Fn_with_F11(){
cin>>n>>k;
int t=2e4,ans=0;
for(int i=1;i<=n;i++){
cin>>x[i]>>y[i]>>a[i]>>b[i];
a[i]-=x[i];
b[i]-=y[i];
while(r-l>10){
int m1=l+(r-l)/3,m2=r-(r-l)/3;
if(check(x[i]+m1*a[i],y[i]+m1*b[i],x[i]+m2*a[i],y[i]+m2*b[i])){
l=m1;
}
else r=m2;
}
pos0=l;
for(int v=l+1;v<=r;v++){
if(check(pos0*a[i]+x[i],pos0*b[i]+y[i],v*a[i]+x[i],v*b[i]+y[i])){
pos0=v;
}
}
if(!check(x[i]+pos0*a[i],y[i]+pos0*b[i])){
continue;
}
int last=0;
for(int h=0;h<=2*t;h++){
if(check(x[i]+a[i]*h,y[i]+b[i]*h)){
ans=max(ans,++cal[h]);
}
}
}
cout<<ans<<ent;
}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int Alikhan_abi_crush=1;
// cin>>Alikhan_abi_crush;
while(Alikhan_abi_crush--){
Press_Fn_with_F11();
}
}
Compilation message
noras.cpp: In function 'void Press_Fn_with_F11()':
noras.cpp:39:9: error: 'r' was not declared in this scope
39 | while(r-l>10){
| ^
noras.cpp:39:11: error: 'l' was not declared in this scope
39 | while(r-l>10){
| ^
noras.cpp:41:44: error: 'm2' was not declared in this scope; did you mean 'm1'?
41 | if(check(x[i]+m1*a[i],y[i]+m1*b[i],x[i]+m2*a[i],y[i]+m2*b[i])){
| ^~
| m1
noras.cpp:46:3: error: 'pos0' was not declared in this scope
46 | pos0=l;
| ^~~~
noras.cpp:46:8: error: 'l' was not declared in this scope
46 | pos0=l;
| ^
noras.cpp:47:20: error: 'r' was not declared in this scope
47 | for(int v=l+1;v<=r;v++){
| ^
noras.cpp:55:7: warning: unused variable 'last' [-Wunused-variable]
55 | int last=0;
| ^~~~
