What is a perfect square number? A perfect square number is a number that is the exact square of an integer. Or simply put, a perfect square number is a natural number whose square root is also a ...
A perfect square year means the number of the year equals the square of an integer number. Some examples of perfect square years from the past are 1521, 1600, 1681 ...
Given an array of n integers. The task is to find the largest number which is a perfect square. Print -1 if there is no number that is perfect square. Examples: Input : arr[] = {16, 20, 25, 2, 3, 10} ...
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