Write a function in C++ that outputs to string using ostringstream. Have it output to the screen and to a file.

Write a c++ function that reads from a file the name and the weight of each person in pounds and calculates the equivalent weight in kilograms. Output the Name, weightLB, and weightKG in that order. Format your output to two decimal places. (1 kilogram = 2.2 pounds.) (Only a function is required here).

2. hello world Write a hello.c file that contains two functions. The function sayHello should take a single string (char *) parameter and write the message "hello" followed by the value passed in. So if you call sayHello("world"), the result should print hello world You should use printf to do the printing. The function main should call sayHello("world") as its only work. Make sure your hello can be compiled all the way and correctly runs. Generate hello.s and comment it as above. Note that the compiler can do some different things for main.

Write a C++ program to do the following: Read the attached file ("TextFile.txt")  and the count the number of times each alphabetic letter is used. Do not count punctuation, whitespace, or numbers. Only count letters a-z. When counting, treat lower and upper case characters the same. Use the attached CPP program as a guide to manage the counting. Use the structure and array provided to maintain counts. See examples in the program. When the all processing is completed, display the total for all letter counts. Example Output Below.:  This numbers below are not intended to be accurate. No special formatting required but should be readable. A:  103 B:  15 C: 22... // remaining lettersZ: 4 cpp code: #include "stdafx.h" #include <iostream> using namespace std;   struct LetterCount {     char letter;     int count; }; // declare an array of structure const int MAXLETTERS = 26; LetterCount myLetterCount[MAXLETTERS];   int main() {       // initialize - MOVE THIS TO A METHOD       for…