Next Perfect Square

Published by Werdna in
algebrainterviewmathnumbers

Mubashir needs your help to find next integral perfect square after the one passed as a parameter.

Create a function which takes a given number $n and returns next integral perfect square number. Return NULL if the given number is not a perfect square.

Examples

nextSquare(121) ➞ 144

nextSquare(625) ➞ 676

nextSquare(114) ➞ NULL
// 114 is not a perfect square

Notes

N/A

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