What is the output of the following Python code: def testing (num): if (num > 50): return (num - 2) return testing(testing( num + 10)); print(testing(30)) а) 50 b) 52 c) 48 d) Infinite recursion

The Eight Queen Problem is to find a solution to place a queen in each row on a chessboard such that no queens can attack each other. write a program to solve the eight queen problem using the recursion and display the result. Program in java

Write python code to complete factorial_str()'s recursive case.Sample output with input: 55! = 5 * 4 * 3 * 2 * 1 = 120   def factorial_str(fact_counter, fact_value):output_string = '' if fact_counter == 0: # Base case: 0! = 1output_string += '1'elif fact_counter == 1: # Base case: print 1 and resultoutput_string += str(fact_counter) + ' = ' + str(fact_value)else: # Recursive caseoutput_string += str(fact_counter) + ' * 'next_counter = fact_counter - 1next_value = next_counter * fact_valueoutput_string += '''Need help here to get the proper output''' return output_string user_val = int(input())print('{}! = '.format(user_val), end="")print(factorial_str(user_val, user_val))

1. Consider the following recursive function: def foo(n):   if (n == 0):      return 0   return n + foo(n - 1)a. What is foo(5)   b. What is foo(10)   c.  Suppose that n + foo(n - 1) is changed to n * foo(n - 1). What is foo(5) now?   d. What happens if foo(-1) is called?

hi,it is wrong agai n      fib(n)   2           1   2           1   2           1   2           1   2           1Number of recursive calls: 5   but have to:

write java codes to do the following:  Write a recursive function to check if an integer array is  negative symmetric, for example, an array of 10, 20, 30, 90, -30, -20, -10 is considered as negative symmetric, while an array of 10, 20, 30, 90, 30, 20, 10 is not  considered as negative symmetric.   public static boolean checkArraySym(int [ ] A, int first, int last) that receives an array A, first index, last index and checks if the array is negative symmetric

1.)I have to recursive with python language and was asked to do a buy 2 get 1 free where you have some amount of money(x) each item costs a given amount(y), for each 2 item you get 1 free, builda recursive solution to find out how many items you can buy for x amount of money. 2.) Buy M, get N free Then alter your first answer to allow for the user to enter any M and N for how many you need to buy to get free items