#include <stdio.h>

void reverse(int *arr, int size) {
    int *start = arr;        // Puntatore al primo elemento
    int *end = arr + size - 1; // Puntatore all'ultimo elemento

    while (start < end) {
        int temp = *start;
        *start = *end;
        *end = temp;

        start++;
        end--;
    }
}

int main() {
    int arr[5] = {1, 2, 3, 4, 5};

    printf("Array originale:\n");
    for (int i = 0; i < 5; i++) {
        printf("%d ", arr[i]);
    }
    printf("\n");

    reverse(arr, 5);

    printf("Array invertito:\n");
    for (int i = 0; i < 5; i++) {
        printf("%d ", arr[i]);
    }
    printf("\n");

    return 0;
}

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