Answer Posted / pawan kumar

#include<stdio.h>

int main(){

int num,i,count=0;
printf("Enter a number: ");
scanf("%d",&num);
for(i=2;i<=num/2;i++){
if(num%i==0){
count++;
break;
}
}
if(count==0 && num!= 1)
printf("%d is a prime number",num);
else
printf("%d is not a prime number",num);
return 0;
}

Which is best book for data structures in c?

599

---

What is the use of void pointer and null pointer in c language?

626

---

Explain how do you print an address?

659

---

Write a program to know whether the input number is an armstrong number.

673

---

State two uses of pointers in C?

640

---

---

What is the 'named constructor idiom'?

640

---

Why is c called a structured programming language?

677

---

How many types of functions are there in c?

583

---

What is a built-in function in C?

796

---

Here is a neat trick for checking whether two strings are equal

566

---

What is the purpose of ftell?

601

---

What does typedef struct mean?

661

---

What is f'n in math?

621

---

What are the different types of errors?

646

---

What is pointer to pointer in c with example?

549

---