CS256 - Fundamentals of Structured Programming

Displaying ./code/functions/min-max.c

#include <stdio.h>

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

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

// nums and n are passed by reference (they are pointers):
void read_integers(int nums[], int *n)
{
  printf("Enter some integers:\n");
  // The * operator next to n is the dereference operator, it gives us the
  // "value" of the variable:
  while(scanf("%d", &nums[*n]) == 1) {
    *n++;
  }
}

int main(void)
{
  int nums[100];
  int n;

  read_integers(nums, &n);

  int num_min, num_max;
  
  num_min = num_max = nums[0];

  for(int i = 1; i < n; i++) {
    num_min = min(num_min, nums[i]);
    num_max = max(num_max, nums[i]);
  }

  printf("Smallest number = %d\n", num_min);
  printf(" Largest number = %d\n", num_max);
  
  return 0;
}