FIND OUT GENERIC ROOT OF A NUMBER - C PROGRAM.

How to FIND OUT GENERIC ROOT OF A NUMBER BY C PROGRAM.

#include<stdio.h>

int main(){

long int num,sum,r;

printf("\nEnter a number:-");

scanf("%ld",&num);

while(num>10){

sum=0;

while(num){

r=num%10;

num=num/10;

sum+=r;

}

if(sum>10)

num=sum;

else

break;

}

printf("\nSum of the digits in single digit is: %ld",sum);

return 0;

}

C program to defines a generic type for queues

How to write a C program to defines a generic type for queues in C Programming Language ?

This C program defines a generic type for queues.

Solution:

1. /* This C program defines a generic type for queues. */
2. #ifndef QUEUE_H
3. #define QUEUE_H
4.  
5. #include <stdio.h>
6. #include <stdlib.h>
7. #include <stdbool.h>
8.  
9. typedef struct Queue Queue;
10. typedef int Queueelem;
11.  
12. Queue *queue_new(unsigned long queue_size);
13. bool queue_is_empty(const Queue *q);
14. void queue_add(Queue *q, Queueelem elem);
15. Queueelem queue_get(Queue *q);
16. void queue_show(const Queue *q);
17. void queue_delete(Queue *q);
18.  
19. #endif