제출 #1164778

#제출 시각아이디문제언어결과실행 시간메모리
1164778Faisal_SaqibWish (LMIO19_noras)C++20
38 / 100
1096 ms4936 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long #define pl pair<ll,ll> #define x first #define y second const ll N=5e5+10; pl f[N],s[N],inc[N]; ll n,r; bool check(int i,int p) { ll fx=(f[i].x+inc[i].x*p); ll fy=(f[i].y+inc[i].y*p); return (fx*fx+fy*fy)<=(r*r); } void solve() { cin>>n>>r; for(int i=1;i<=n;i++) { cin>>f[i].x>>f[i].y>>s[i].x>>s[i].y; inc[i].x=(s[i].x-f[i].x); inc[i].y=(s[i].y-f[i].y); } int as=0; for(int p=0;p<=2e4;p++) { int ans=0; for(int i=1;i<=n;i++) { ans+=check(i,p); } as=max(as,ans); } cout<<as<<endl; } int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); int t=1; // cin>>t; while(t--)solve(); return 0; }
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