25. Placement New Static Buffer

Your microcontroller firmware environment does not allow heap allocation, so objects must be constructed inside preallocated static memory.

You must:

1. Define a struct Block with two integer fields:
   • id
   • value
2. Create a statically allocated, properly aligned buffer large enough to hold one Block
3. Use placement new to construct a Block object inside that buffer
4. Read two integers from input and assign them to id and value
5. Print the fields in the format:

   1. id value

6. Manually call the destructor of the constructed object

⚠️ Important: Placement new does not allocate memory and therefore requires explicit destruction.

Example 

Input:

7 42

Output:

7 42

Constraints:

• Use placement new syntax: new (buffer) Block
• Do not use normal new or delete
• The buffer must be properly aligned for Block
• Explicitly call the destructor using: obj->~Block();
• Use only stack or static memory (embedded-safe)