Which quarter?#918

Which quarter? (Editorial)

Written By : MathModel

We've the quaraters enumeration as above , so we casework $x, y$ with noting that the answer is $0$ if any of the following holds:

$x = 0$ x=0
$y = 0$ y=0

The main condition is :

For quarter 1 : $x > 0$ x>0 and $y > 0$ y>0
For quarter 2 : $x < 0$ x<0 and $y > 0$ y>0
For quarater 3 : $x < 0$ x<0 and $y < 0$ y<0
For quarter 4 : $x > 0$ x>0 and $y < 0$ y<0

Make sure to read $x, y$ as float/double numbers.

x,y=map(float,input().split())
if(x>0 and y>0):
    print(1)
elif(x>0 and y<0):
    print(4)
elif(x<0 and y>0):
    print(2)
elif(x<0 and y<0):
    print(3)
else:
    print(0)

Python

Complexity $O (1)$ .