Reinitialize Object In-Place

#include <iostream>
#include <cstdint>
#include <new>

using namespace std;

// Write your struct and placement new logic here
struct Mode{
    int level; 
};

int main() {
    int firstLevel, secondLevel;
    cin >> firstLevel >> secondLevel;

    // Write your in-place reinitialization logic here
    alignas(Mode) uint8_t buffer[sizeof(Mode)];
    Mode *modePtr = new (buffer) Mode{firstLevel};
    modePtr->~Mode();
    modePtr = new (buffer) Mode{secondLevel};
    cout << modePtr->level; 
    modePtr->~Mode();

    return 0;
}

Solving Approach