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  1. Rewrite this function as a block:

    int k(void) {
        return 1;
  2. Write a function create_k that accepts a single integer argument i and returns a block. The returned block accepts no arguments and always returns the value of i passed to create_k(). Use this function in a test program. (Be careful with the block memory management!)

  3. Define two blocks called add_one and add_two that accept no arguments and return nothing. These should both increment the same integer by one or two. (You will need the __block storage specifier.)

  4. Use typedefs to simplify the following block reference declaration:

    int (^(*(^get_block_factory_funcptr)(void))(int))(void);
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