C++ OUTPUT SHOULD BE ON A .TXT FILE PLEASE ANSWER ALL

EXERCISE 14 -Create a C++ program that reads a whole number via the console and displays the sequences of numbers in triangular format up to that given height in a file. Sample Run (via the console)E Enter the height: 3 Output.txt Numbers triangle is: 1 23 456 EXERCISE 15 -Create a C++ program that reads a file called "input.txt" -The program should be able to write in another file "output.txt" the content of the input file with all its letters in uppercase. Sample Run: input. output.ttxt Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. LOREM IPSUM DOLOR SIT AMET, CONSECTETUR ADIPISCING ELIT, SED DO EIUSMOD TEMPOR INCIDIDUNT UT LABORE ET DOLORE MAGNA ALIQUA P: Use toupper function of ctype.h library EXERCISE 16 -Create a C++ program that accepts an array of numbers from the user via the console. -The program should be able to write the even, prime and odd numbers in separate files. Evern.txt Sample Run: 8 Enter number of elements 3 Enter element#1: 9 En ter element#2: 13 Enter element#3: 8 Odd.txt 9 13 13