please help ... C programming

[toriiiiiico]

please give me some advice or coding to solve these questions...
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Write the following functions and an appropriate driver program to test them:
a. A function that receives an character array address and array length and then initializes the
array elements to the letter A.
b. A function that receives an integer array address, array length and an integer value and then
initializes the array elements to the integer value.
c. A function that receives an integer array address and array length and then initializes the array
elements to even numbers, starting at 2.
d. A function that receives an integer array address and array length and then returns the
average of the first and last array elements.
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Write your own version of the following library functions and an appropriate driver program to test
them:
strcpy()
strcat()
strlen()
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[striker8000]

hey thanks, I haven't had a decent trivial problem since I graduated, now if you'll post some code, we'll see if we can help you.