#include <iostream>

void foo(int s) {
    int arr[s] = { 0 };
    arr[2] = 5;
    std::cout << arr[3] << " " << arr[2];
}

// int* foo2(int s) {
//     int arr[s] = { 0 };
//     return arr;
// }

int main() {
    foo(4);
    
    // int* a = foo2(4);
    // std::cout << " " << a[2];
}

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