X DAYS

:

HOUR

:

MINS

:

SEC

Copied to Clipboard
Final Destination
Easy Accuracy: 30.86% Submissions: 6293 Points: 2

Consider a 2d plane and a Robot which is located at (0,0) who can move only one unit step at a time in any direction i.e. if its initial position is (x,y), he can go to positions (x + 1, y), (x - 1, y), (x, y + 1) or (x, y - 1). Now Given three integers a,b (denoting the final position where the robot has to reach), and x. Find out if the Robot can reach the final position in exactly x steps.

Example 1:

Input:
a = 5, b = 5, x = 11
Output:
0
Explanation:
No matter how the Robot moves,
the Robot won't be able to reach
point (5,5) in exactly 11 moves.

Example 2:

Input:
a = 10, b = 15, x = 25
Output:
1
Explanation:
The Robot can move 10 times towards
positive x-axis and then 15 times
towards positive y-axis to reach (10,15).

You don't need to read input or print anything. Your task is to complete the function canReach() which takes 3 Integers a,b and x as input and returns the answer.

Expected Time Complexity: O(1)
Expected Auxiliary Space: O(1)

Constraints:
-109 <= a,b <= 109
1 <= x <= 2*109

We are replacing the old Disqus forum with the new Discussions section given below.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

My Submissions:  