Submission #1164778

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164778		Faisal_Saqib	Wish (LMIO19_noras)	C++20	38 / 100	1096 ms	4936 KiB

noras

#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;
}

• Subtask 1: 23 / 23
• Subtask 2: 0 / 23
• Subtask 3: 15 / 15
• Subtask 4: 0 / 32
• Subtask 5: 0 / 7