Squares

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0 votes
Easy
Problem

Sharma loves the way Senky codes.So he gave him a problem to just watch him code. 

Given an integral area A.Your task is to count all possible squares having integral side length whose area is less than or equal to A.

INPUT:

Single Integer -  A.

OUTPUT:

Single Integer-  Required answer.

CONSTRAINTS:

1 <= A <= 1012

Time Limit: 1
Memory Limit: 256
Source Limit:
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