in C++ please

Use any high-level programming language you prefer for the following programming exercises. Do not use those built-in library functions or operators that accomplish these tasks automatically.

Examples are, but not limited to: sprintf, sscanf, stringstream operators << or >> , etc, from the C++ library, or toHexString, getNumericValue, println, parseInt(), etc, in Java

Programming Problems 1. Write a function that receives a string containing a 16-bit Binary Unsigned Integer. The function must return the strings Integer (int) value.

Test Cases should At Least include one Small, one Middle and one Full 16-bit value.

Programming Problems 2. Write a function that receives a string containing a 32-bit Hexadecimal Unsigned Integer. The function must return the strings Integer (int) value.

Test Cases should At Least include one Small, one Middle and one Full 32-bit value.