Prob A

Notes : IN C LANGUAGE

USE RECURSIVE FUNCTION

DONT USE VOID MAIN

INPUT AND OUTPUT MUST BE SAME

Final Recursion Jojo wants to give you the final challenge about recursion. Here is the function. Suppose that f(x) is a function which returns f (x-1) + 1 if x > 0, and returns o if x = 0. Given the input x, determine the value of f(x). Format Input A single line consists of an integer x. Format Output A single line consists of an integer which describes the value of f(x). Constraints .0SX S10 Sample Input 1 (standard input) 3 Sample Output 1 (standard output) 3 Sample Input 2 (standard input) 0 Sample Output 2 (standard output) 0 Explanation On the first sample, the value of f(3) is f(3) = f(2) +1 = (f(1) + 1) +1 = (((0) +1) + 1) + 1 = ((0 + 1) + 1) + 1 = (1 + 1) + 1 = 2 +1 = 3