I want some one build me a memory manager program in c++ using linked lists

you have to do:

Whenever claimMemory is called, Memory Manager searches the freeList from the head of the list to find out whether necessary amount of memory is available. If free memory is found, the freeList will be adjusted to reflect that this memory is not available anymore and the newly allocated memory will be added to the allocList. The implementation should be in c++.

After that, you have to test program with valgrind leaks and google unit tests