Write a short C++ function that takes an integer n and returns the sum of all th

Question

Write a short C++ function that takes an integer n and returns the sum of all the integers smaller than n. Write a short C++ function that takes an integer n and returns the sum of all the odd integers smaller than n. Write a short C++ function that takes a positive double value x and returns the number of times we can divide x by 2 before we get a number less than 2 . Write a pseudo-code description of a method that reverses an array of n integers, so that the numbers are listed in the opposite order than they were before, and compare this method to an equivalent C++ method for doing the same thing. Write a short C++ function that takes an array of int values and determines if there is a pair of numbers in the array whose product is even. Write a C++ function that takes an STL vector of int values and determines if all the numbers are different from each other (that is, they are distinct). Write a C++ function that takes an STL vector of int values and prints all the odd values in the vector. Write a C++ function that takes an array containing the set of all integers in the range 1 to 52 and shuffles it into random order. Use the built-in function rand, which returns a pseudo-random integer each time it is called. Your function should output each possible order with equal probability. Write a short C++ program that outputs all possible strings formed by using each of the characters 'a' , 'b' , 'c', 'd' 'e', and 'f' exactly once. Write a short C++ program that takes all the lines input to standard input and writes them to standard output in reverse order. That is, each line is output in the correct order, but the ordering of the lines is reversed. Write a short C++ program that takes two arguments of type STL vector, a and b, and returns the element-by-element product of a and b. That is, it returns a vector c of the same length such that c[i] = a[i]middot b[i] Write a C++ class Vector2, that stores the (x ,y) coordinates of a two-dimensional vector, where x and y are of type double. Show how to override various C++ operators in order to implement the addition of two vectors (producing a vector result), the multiplication of a scalar times a vector (producing a vector result), and the dot product of two vectors (producing a double result).

Explanation / Answer

1. void main() { int a[20],b[20],n; coutn; for(int i=0;i

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