write a C program to find the first largest and first smallest elements of a given array.

C Program to Find First Largest and First Smallest Elements in an Array

When you are asked to write a C program to find the first largest and first smallest elements of a given array, it means that you are required to create a program that takes an array of integers as input and finds the first largest and first smallest elements of that array.

"First largest" refers to the largest element in the array that appears first in the sequence. Similarly, "first smallest" refers to the smallest element in the array that appears first in the sequence.

For example, if we have an array arr with the following elements: {10, 5, 20, 3, 30, 40, 1}, the first largest element is 20 (because it appears first among the largest elements in the array), and the first smallest element is 5 (because it appears first among the smallest elements in the array).

So, your C program should be able to determine the first largest and first smallest elements of a given array, and print them out as output.

 

C program that finds the first largest and first smallest elements of a given array:

#include<stdio.h>

int main() {
  int arr[] = {10, 20, 30, 40, 50}; // sample array
  int size = sizeof(arr) / sizeof(int); // get size of the array
  int i, first_largest, first_smallest;

  // initialize first_largest and first_smallest to the first element of the array
  first_largest = first_smallest = arr[0];

  // loop through the array
  for (i = 1; i < size; i++) {
    // check if the current element is larger than the current first_largest
    if (arr[i] > first_largest) {
      first_largest = arr[i];
      break;
    }

    // check if the current element is smaller than the current first_smallest
    if (arr[i] < first_smallest) {
      first_smallest = arr[i];
      break;
    }
  }

  printf("The first largest element is: %d\n", first_largest);
  printf("The first smallest element is: %d\n", first_smallest);

  return 0;
}

 

In this program, we first declare an array arr with some sample values, and then calculate its size using sizeof(arr) / sizeof(int). We then use a for loop to iterate over the elements of the array, starting from the second element (since the first element is already assigned to first_largest and first_smallest).

Within the loop, we check if the current element is larger than the current first_largest element. If it is, we update first_largest to the current element. Similarly, we check if the current element is smaller than the current first_smallest element. If it is, we update first_smallest to the current element.

Finally, we print out the values of first_largest and first_smallest. Note that we use a break statement after updating first_largest and first_smallest to ensure that we only find the first occurrence of each in the array.

Further Reading:

 

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write a program to find the first smallest and second smallest elements of a given array.

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