Placement New Static Buffer

#include <iostream>
#include <cstdint>
#include <new>
using namespace std;

// Define your struct and placement new logic here
struct Block {
    int id;
    int value;
    ~Block() {}
};
alignas(Block) unsigned char buff[sizeof(Block)];
int main() {
    int id, value;
    cin >> id >> value;
    
    // Write your placement new construction code here
    Block* b = new (buff) Block;
    b->id = id;
    b->value = value;
    cout << b->id << " " << b->value;
    b->~Block();
    return 0;
}

Solving Approach