Exercise 1: Write a complete C++ program that open an existing file (the file should contains some data), then call a function that accept the name of the file and string to search for in that file. The function should find all occurrence of the string that have been passed as argument to the function, when the string is found, the function should return the line of the occurrence. Once the searching is done, display a report of the number of the occurrence in that file with its location (Line)