Problem 45425. The Tortoise and the Hare - 01

Suppose in an infinitely long line, the hare is standing in position 0.

From that place, it can jump either in the +ve direction or in the -ve [but not both].

One condition is that, in i-th jump, it can move i step. Meaning -

1  [1st step >> so 0+1]
3  [2nd step >> so 1+2]

Given a position x, determine whether the hare will be in that position or not.

For example,

 if x=15 then true 
 if x=14 then false.

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14.63% Correct | 85.37% Incorrect
Last Solution submitted on Apr 08, 2020

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