Write a program that removes all spaces from the given input.

Ex: If the input is: Hello my name is John.
the output is: HellomynameisJohn.

Your program must define and call the following function. The function should return a string representing the input string without spaces. string RemoveSpaces(string userString)

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The following function returns a string of length n whose characters are all 'x'. give the order of growth (as a function of n) of the running time. recall that concatenating two strings in java takes time proportional to the sum of their lengths. public static string f(int n) { if (n == 0) return ""; if (n == 1) return "x"; return f(n/2) + f(n - n/2); } options: a) constant b) logarithmic c) linear d) linearithmic e)quadratic f)cubic g) exponential

Which of the choices sean are not true when considering virus behavior