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- Write a Prolog function (i.e, a Prolog program), called count(X,L,N), that returns in variable N the number that X appears in list L. You can assume that all values in list L are integer. Some examples, count(6,[9,5,3,9,14],N) should return N=0. count(3,[9,5,3,9,14],N) should return N=1. count(9,[9,5,3,9,14],N) should return N=2.In c++ and without the use of vectors, please. Thanks very much! A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes as input an integer N that represents the number of word pairs in the list to follow. Word pairs consist of a name and a phone number (both strings). That list is followed by a name, and your program should output the phone number associated with that name. Define and call the following function. The return value of FindContact is the index of the contact with the provided contact name. If the name is not found, the function should return -1 This function should use binary search. Modify the algorithm to output the count of how many comparisons using == with the contactName were performed during the search, before it returns the index (or -1). int FindContact(ContactInfo contacts[], int size, string contactName) Ex: If the input is: 3…A palindrome is a sentence that contains the same sequence of letters reading it either forwards or backwards. A classic example is '1\.ble was I, ereI saw Elba." Write a recursive function that detects whether a string is apalindrome. The basic idea is to check that the first and last letters of thestring are the same letter; if they are, then the entire string is a palindromeif everything between those letters is a palindrome.There are a couple of special cases to check for. If either the first orlast character of the string is not a letter, you can check to see if the restof the string is a palindrome with that character removed. Also, when youcompare letters, make sure that you do it in a case-insensitive way.Use your function in a program that prompts a user for a phrase andthen tells whether or not it is a palindrome. Here's another classic fortesting: '1\. man, a plan, a canal, Panama!"
- In c++ and please without the use of vectors. Thanks very much! A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes as input an integer N that represents the number of word pairs in the list to follow. Word pairs consist of a name and a phone number (both strings). That list is followed by a name, and your program should output the phone number associated with that name. Define and call the following function. The return value of FindContact is the index of the contact with the provided contact name. If the name is not found, the function should return -1 This function should use linear search. Modify the algorithm to output the count of how many comparisons were performed during the search, before it returns the index (or -1). int FindContact(ContactInfo contacts[], int size, string contactName) Ex: If the input is: 3 Joe 123-5432 Linda 983-4123…Write a recursive function in Java that accepts an integer as input and returns 1 + 1/2 + 3 + 1/4 + ...(n or 1/n). The answer is the sum of the odd integers from 1 to n plus the sum of the reciprocals of the even integers.Write a Haskell program convertFraction2Binary that takes as input a fractional number between 0 and 1 and returns the binary representation of the number as a String. In case of repeating patterns, stop at length 23.
- Please write the following program in C. Write the complete program with correct syntax. Take a string input from the user and find out whether it is a palindrome using pointers. Sample Input:AAABBAAAAABBABAaabcbaaSample Output:PalindromeNot PalindromePalindromeIn C++ Write a program that lists all ways people can line up for a photo (all permutations of a list of strings). The program will read a list of one word names (until -1), and use a recursive method to create and output all possible orderings of those names, one ordering per line. When the input is: Julia Lucas Mia -1 hen the output is (must match the below ordering): Julia Lucas Mia Julia Mia Lucas Lucas Julia Mia Lucas Mia Julia Mia Julia Lucas Mia Lucas Julia #include <vector>#include <string>#include <iostream> using namespace std; // TODO: Write method to create and output all permutations of the list of names.void AllPermutations(const vector<string> &permList, const vector<string> &nameList) { } int main(int argc, char* argv[]) { vector<string> nameList; vector<string> permList; string name; // TODO: Read in a list of names; stop when -1 is read. Then call recursive method. return 0;}Given a string str and number n, write a program in JavaScript that recursively appends a copy of string str n times and returns the resulting string.
- Write a function in c called recursively_reverse_string() that accepts a pointer to a string as a parameter, and any other parameters you see fit, recursively reverses the string, and returns a pointer to the reversed string. For example, the reversed string of input “string” is “gnirts”.Write a python function that takes a string as an argument and searches all the characters having multiple occurrences (except the spaces) in that string. Then, prepare and RETURN a dictionary where the keys will be the characters and values will be the positions of those characters in the string. ================================================ Function Call1: function_name("this is my first semester.") Sample Output 1: {‘t’: [0, 15, 22],‘h’:[1], ‘i’: [2, 5, 12], ‘s’:[3, 6, 14, 17, 21], ‘m’: [8,19], ‘y’: [9], ‘f’:[11], ‘r’: [13, 24], ‘e’: [18, 20, 23]} Explanation1: Here, the character ‘t’ has appeared in indexes 0, 15, and 22. The character ‘h’ has appeared in index 1. The character ‘i’ has appeared in indexes 2, 5, and 12. And so on. ================================================ Function Call2: function_name("my student id is 010101.") Sample Output 2: {‘m’:[0],’y’:[1],‘s’: [3, 15], ‘t’: [4, 9],’u’:[5],’e’:[7],’n’:[8], ‘d’: [6, 12], ‘i’: [11, 14], ‘0’: [17,19,21],’1’: [18,20,22]}…write a recursive function that checks see if the first letter matches the last letter, return the middle letters and check until only 0 or 1 letters are left. It returns True or False. Here is python code that needs to be fixed # Returns the first character of the string str def firstCharacter(str): return str[:1] # Returns the last character of a string str def lastCharacter(str): return str[-1:] # Returns the string that results from removing the first # and last characters from str def middleCharacters(str): return str[1:-1] def isPalindrome(str): # base case #1 # base case #2 # recursive case pass def isPalindrome(string): reversedString = string[::-1] if reversedString == string: return True else: return False inputString = input() string = inputString.replace(" ", "") if isPalindrome(string): print(inputString,"is a palindrome") else: print(inputString,"is not a palindrome") if __name__ ==…