lab1.c

#include <stdio.h>

int main (void) {
    int n;
    
    printf ("n = ");
    scanf("%d", &n);
    double B[n];
    
    int i;
    for (i = 0; i < n; i++){
      printf ("\nB[%d] = ", i);
      scanf("%lf", &B[i]);
    }
    
    /* initial values */
    double min = B[0], max = B[0];
    
    /* find minimum */
    
    for (i = 1; i < n; i++){
      if (B[i] < min){
        min = B[i];
      }
    }
    
    /* find maximum */
    
    for (i = 1; i < n; i++){
      if (B[i] > max){
        max = B[i];
      }
    }
    
    printf ("middle = (%lf + %lf)/2 = %lf", max, min, (max+min)/2);
    
    getch();
    return 0;
}