#include <stdio.h>
#include <ctype.h>
#include <stdbool.h>
#define INPUT_FILE "./numeri.txt"

int max(int a, int b)
{
    if (a > b) {
        return a;
    }

    return b;
}

int min(int a, int b)
{
    if (a < b) {
        return a;
    }

    return b;
}

int main()
{

    FILE *fp_read;

    fp_read = fopen(INPUT_FILE, "r");

    if (fp_read == NULL)
    {
        printf("Error opening file\n");
        return 1;
    }

    int x, y, a;
    int maxVal, minVal, scartati = 0;

    if (fscanf(fp_read, " %d", &x) == EOF || fscanf(fp_read, " %d",& y) == EOF) {
        fclose(fp_read);
        return 1; // Terminate if there are only two numbers
    }

    minVal = min(x, y);
    maxVal = max(x, y);

    while (!feof(fp_read))
    {
        if (fscanf(fp_read, " %d", &a) == EOF) {
            break;
        }

        if (x + y != a && x - y != a && x * y != a && (y==0 || x / y != a )) {
            scartati++;
            continue;
        }

        minVal = min(minVal, a);
        maxVal = max(maxVal, a);

        x = y;
        y = a;
    }

    printf("Numero massimo: %d\nNumero minimo: %d\nNumeri scartati: %d\n", maxVal, minVal, scartati);
    
    fclose(fp_read);

    return 0;
}