Write a program that will search and find out the position where the given key element exist in a user chosen array and print it as output.

C Programming Language Array in C Language (Article) Array in C Language (Program)

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Program:

#include <stdio.h>
#include <stdlib.h>

int main()
{

  int a[30],n,i,key, FOUND=0;

  printf("\n How many numbers ");
  scanf("%d",&n);

  if(n>30)
  {
    printf("\n Too many Numbers");
    exit(0);
   }

  printf("\n Enter the array elements \n");

  for(i=0 ; i<n; i++)
    scanf("%d", &a[i]);

  printf("\n Enter the key to be searched \n");
  scanf("%d",&key);

  for(i=0 ; i<n; i++)
    if(a[i] == key)
    {
      printf("\n Found at %d",i);
      FOUND=1;
     }
  if(FOUND == 0)
    printf("\n NOT FOUND...");

  return 0;
 }

Output:

 How many numbers 5

 Enter the array elements
5
4
3
2
1

 Enter the key to be searched
3

 Found at 2

Explanation:

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