IN C++ PLease

1. Fibonacci Sequence. The Fibonacci Sequence is the series of numbers: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ... The next number is found by adding up the two numbers before it. Function prototype: int fibon(int seqNumber); The command line arguments would be: fib seqNumber 2. Factoral: 3! = 3*2*1;10! = 10*9*8*7*6*5*4*3*2*1 etc Function prototype: double factoral(int argument); //Why use double here? 3. combine the command line arguments into a single string with spaces between each argument starting with argv[2]; Use only the minimum amount of memory to store the combined string. You may not use or functions. Function prototype: char *mergeCLA(int argc, char *argv[]); Merging will start with argv[2] string