Write a recursive function called poweroftwo that returns the k" power of 2. As an example, the call poweroftwo(3) returns the value 8 (i.e. 2^3) and the call poweroftwo(5) would return 32. The initial argument is non negative.
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A: Given To know about the pattern making concept by recursion.
C++
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- (Numerical) Write a program that tests the effectiveness of the rand() library function. Start by initializing 10 counters to 0, and then generate a large number of pseudorandom integers between 0 and 9. Each time a 0 occurs, increment the variable you have designated as the zero counter; when a 1 occurs, increment the counter variable that’s keeping count of the 1s that occur; and so on. Finally, display the number of 0s, 1s, 2s, and so on that occurred and the percentage of the time they occurred.(Program) Write a program that tests the effectiveness of the rand() library function. Start by initializing 10 counters, such as zerocount, onecount, twocount, and so forth, to 0. Then generate a large number of pseudorandom integers between 0 and 9. Each time 0 occurs, increment zerocount; when 1 occurs, increment onecount; and so on. Finally, display the number of 0s, 1s, 2s, and so on that occurred and the percentage of time they occurred.Write a recursive function, sumDigits, that takes an integer as a parameter and returns the sum of the digits of the integer. Also, write a program to test your function.
- Write a recursive function that returns true if the digits of a positive integer are in increasing order; otherwise, the function returns false. Also, write a program to test your function.Write a recursive function that takes as a parameter a nonnegative integer and generates the following pattern of stars. If the nonnegative integer is 4, then the pattern generated is:********************Also, write a program that prompts the user to enter the number of lines in the pattern and uses the recursive function to generate the pattern. For example, specifying 4 as the number of lines generates the above pattern.Write a recursive function that takes as a parameter a nonnegative integer and generates the following pattern of stars. If the nonnegative integer is 4, the pattern generated is as follows: **** *** ** * * ** *** **** Also, write a program that prompts the user to enter the number of lines in the pattern and uses the recursive function to generate the pattern. For example, specifying 4 as the number of lines generates the preceding pattern.
- Write a recursive function that returns the sum of the digits of an integer.int sumOfDigits(int x);Implement a recursive function called evens that returns an integer with only theeven numbers. Note this function is returning an integer, not printing. There shouldbe no use of cout within your function. The function declaration should look asfollows:int evens(int n);(ex. evens(234567); returns 246)(ex. cout << evens(56032); prints 602)In Kotlin, Write and test a recursive function called harm with an expression body that takes an Int argument n and calculates the sum of 1/1 ... 1/n. For example, harm(3) should return about 1.833333333. You do not need to worry about integer division.
- What is the return value of the function call Comp(4, 5), given the recursive function Comp defined below: int Comp(int a, int b) { if (a + b <= 6) return 3; else return Comp(a-1, b) + Comp(a, b-1); }Write C++ code. Write a recursive function, reverseDigits, that takes an integer as a parameter and returns the number with the digits reversed. Write output also.Implement a recursive C++ function which takes a character (ch) and a positive integer (n) and prints thecharacter ch, n times on the screen. The prototype of your function should be:void printChar (char ch, int n)For example, calling printChar('*',5) should display ***** on screen.Note: There should NOT be any loop in your function.