c program to find prime numbers in an array

Write a C program to print the prime number between 1 to n number.

for example: 1 to 100

ANS
 1 is not the prime number. All even number is not the prime number except the number 2.

in this program we find where number is prime or not in array 

/* C program to find all prime numbers from the inputted array */

#include<stdio.h>

#include<conio.h>

void main()

{

     int ar[100],i,n,j,counter;



    printf("Enter the size of the array ");

     scanf("%d",&n);

     printf("\n Now enter the elements of the array");

     for(i=0;i<n;i++)
     {

           scanf("%d",&ar[i]);

     }



     printf(" Array is -");

     for(i=0;i<n;i++)

     {

           printf("\t %d",ar[i]);
     }

    printf("\n All the prime numbers in the array are -");

     for(i=0;i<n;i++)

     {
           counter=0;

           for(j=2;j<ar[i];j++)

           {

                 if(ar[i]%j==0)
                 {

                       counter=1;

                    break;
                }

           }

           if(counter==0)

           {

                 printf("\t %d",ar[i]);

           }

    }
}



/*Print “Even” or “Odd” without using conditional statement
Write a C/C++ program that accepts a number from the user and prints “Even” if the entered number is even and prints “Odd”
if the number is odd.
    Your are not allowed to use any comparison (==, <, >..etc)
     or conditional (if, else, switch,
    ternary operator,..etc) statement.*/
    printf("tjis cod by ameer hamza");

#include<stdio.h>
int main()
{
    int no;
    printf("Enter a no: ");
    scanf("%d", &no);
    (no & 1 && printf("odd"))|| printf("even");
    return 0;
}