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
    char buffer[sizeof(Mode)];
    Mode * myMode = new(buffer) Mode;

    myMode->level = firstLevel;
    myMode->~Mode();

    myMode = new(buffer) Mode;
    myMode->level = secondLevel;
    myMode->~Mode();

    cout << myMode->level << endl;

    return 0;
}

Solving Approach