Square numbers counting - MarisaOJ: Marisa Online Judge

You are given an integer

a

$a$ . How many positive square numbers are there that they are smaller or equal to

a

$a$ ?. ### Input - An integer

a

$a$ . ### Output - The number of satisfied square numbers. ### Constraints -

(1 \leq a \leq 10^{18})

$(1 \le a \le 10^{18})$ . ### Example Input:

26

$26$

Output:

5

$5$

Topic

Basic

Rating

800

Solution (0)

Solution