Submission #447966

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
447966	2021-07-28 10:18:54	Jasiekstrz	Geometrija (COCI21_geometrija)	C++17	110 / 110	175 ms	564 KiB

geometrija

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#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=1e3;
struct Point
{
  long long x,y;
};
Point operator-(Point a,Point b)
{
  return {a.x-b.x,a.y-b.y};
}
long long operator*(Point a,Point b)
{
  return a.x*b.y-a.y*b.x;
}
int sgn(long long x)
{
  return (x<0 ? -1:1);
}
int ilo(Point a,Point b,Point c)
{
  return sgn((a-c)*(b-c));
}
bool cross(Point a,Point b,Point c,Point d)
{
  return (ilo(c,b,a)!=ilo(d,b,a) && ilo(a,d,c)!=ilo(b,d,c));
}
bool inside(Point p,Point a,Point b,Point c)
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 60 / 60