Haskell code:
checkIfEven :: Int -> Bool
x <- readLn
let checkIfEven x = (even ((x*3)+1))
print checkIfEven
Getting error : Variable not in scope: checkIfEven ::
Int -> Bool, how to fix it?
note: function goal is take an int and return a bool.
takes the integer multiplies it by 3 and adds 1. if the the outcome is even return true, otherwise false.
I have rectified the error
checkIfEven :: Int -> Bool
checkIfEven x = (even ((x*3)+1))
main = do
x <- readLn
print(checkIfEven x)
Output
Haskell code: checkIfEven :: Int -> Bool x <- readLn let checkIfEven x = (even ((x*3)+1))...
• bool test(int a, int& b) { bool res = false; if(a > b) { b = a%2; res = true; } return res; } int main() { int x = 45, y = 43; test(x, y); cout << x << " " << y << endl; return 0; } Question: The output of the above code is: ________________ •Write a function that takes an integer as its sole parameter and returns -1, 0 or 1 depending upon whether the...
haskell code: divisableBy3 :: [a] -> [a] divisableBy3 v = filter odd(filter(\v -> v 'mod' 3 == 0)) Goal to filter all numbers in a list and then filter to keep only the ones divisbable by 3. getting an error: error: * Syntax error on 'mod' Perhaps you intended to use TemplateHaskell or TemplateHaskellQuotes * In the Template Haskell quotation 'mod' | 7 | divisableBy3 v = filter odd(filter(\v -> v 'mod' 3 == 0)) | ^^^^^ how to fix...
QUESTION 1 What is the output of the following code snippet? int main() { bool attendance = false; string str = "Unknown"; attendance = !(attendance); if (!attendance) { str = "False"; } if (attendance) { attendance = false; } if (attendance) { str = "True"; } else { str = "Maybe"; } cout << str << endl; return 0; } False True Unknown Maybe QUESTION 2 What is the output of the following code snippet? #include <iostream> #include <string> using...
In C++ #include<iostream> using namespace std; //Implement the function below. bool is_fibonacci_array(int*,int); //Param 1: pointer to the beginning of an array of integers //Param 2: size of that array //Returns: true, is every element in the input array is a Fibonacci number //(the order of the numbers in the array need not be ordered //as per the Fibonacci sequence) //false, otherwise //A Fibonacci sequence is generated as follows. //The first two numbers in the sequence are 0 and 1. //The...
Using C++ Question#1: isPalíndrome Write the following function: bool isPalindrome(int) takes an integer and returns true if that integer is palindrome, otherwise it returns false. The function also prints the digits of the integer in reverse order in which they were found. Write a main) function that reads an integer, calls the function is whether the integer is a palindrome or not. Palindrome), and prints Sample input/output: nter an integer: 23434 nter an integer 23432 3434 is not a palindrome...
a) Make a function which returns x/3 with a given integer x. double third(int x) { //Complete your code below. ______________________________________ return y; } b) Make a program which shows 2 ∗ n with a given user input n. #include<iostream> using namespace std; // Complete the blank. _______________________ int main(){ int n; cout<<"Enter:"; cin>>n; cout<<twice(n); return 0; } int twice(int x){ return 2*x; } c) Make a function which returns true if n is positive, otherwise returns false. ________ positive(int...
How do can I update this code (Code A): Code (A) #include using namespace std; int fibonacci(int n) { int a = 0, b = 1, c; if (n <= 1) return n; for (int i = 2; i <= n; i++) { c = a + b; a = b; b = c; } return b; } int fibonacciRecursive(int n) { if (n <= 1) { return n; } return fibonacciRecursive(n-1) + fibonacciRecursive(n-2); } int main() { int n;...
*Please write in code in C* First, write a function called prime_check(int x) that takes an integer number as an input then return 1 if it is a prime number nd returns 0 if it is a composite number Then, Write a program that prompt the user to input two numbers: Print the multiplication of these two numbers if both of them are prime. Or Print " Sorry at least one of your number is composite" if otherwise
Starting code: #include <stdio.h> #include <stdbool.h> #include <assert.h> bool checkSudoku(int sudoku[9][9]) { //code goes here } int main() { int sudoku[9][9] = {{7, 3, 5, 6, 1, 4, 8, 9, 2}, {8, 4, 2, 9, 7, 3, 5, 6, 1}, {9, 6, 1, 2, 8, 5, 3, 7, 4}, {2, 8, 6, 3, 4, 9, 1, 5, 7}, {4, 1, 3, 8, 5, 7, 9, 2, 6}, {5, 7, 9, 1, 2, 6, 4, 3, 8}, {1, 5, 7, 4,...
#include <iostream> #include <fstream> using namespace std; //constants const int CAP = 100; //function prototypes bool openFile(ifstream &); void readData(ifstream &, int [], int &); void printData(const int [], int); void sum(const int[], int); void removeItem(int[], int &, int); int main() { ifstream inFile; int list[CAP], size = 0; if (!openFile(inFile)) { cout << "Program terminating!! File not found!" << endl; return -1; } //read the data from the file readData(inFile, list, size); inFile.close(); cout << "Data in file:" <<...