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;
};

int main() {
    int id, value;
    cin >> id >> value;

    // Write your placement new construction code here
    alignas(Block) static uint8_t buffer[sizeof(Block)];

    Block* ptr  = new (buffer) Block;
    ptr->id = id;
    ptr->value  = value;

    cout << ptr->id << " " << ptr->value;
    ptr->~Block();

    return 0;
}

Solving Approach