Write a deduplication function start with "void dedup()" in C++ and follow the instruction, details would be really helpful

void dedup(). This is a deduplication function, meaning that all dupli- cate values are deleted from the list. Specifically, for every value, you need to delete all subsequent occurrences from the list. For example, suppose the list was (in order) 10 20 10 50 20. On deduplication, the list becomes 10 20 50. It is important that you do not shuffle the values. This function just performs this operation, so there is no argument