Question 3 Write a C/C++ code to reverse a string. The requirements are listed below 1. This should take a pointer to a memory location and a length in bytes and reverse the order all of the bytes. 2. All operations need to be performed using pointer arithmetic, not array indexing 3. Should return a pointer to the source. Question 4 Write a C/C++ code to check whether a given number is a power of 2 and power of 4. Question 5 Write a code to reverse a hexadecimal number(4bytes). Example: original number-0xAABBCCDD, after Reversal-0xDDCCBBAA