C programs

1. Write a c program to get the system time and date?
   Solution:
   #include<stdio.h>
   #include<time.h>
   int main()
   {
       char *date;
       time_t timer;
       timer=time(NULL);
       date=asctime(localtime(&timer));
       printf("date:%s",date);
       return;
   }
   Output:
   ./a.out
   date:Fri Nov 19 18:30:21 2010
   
2. Write a c program to reverse a line of text (or) reverse a string without using string fucnctions
   #include<stdio.h>
   void display(void);
   int main()
   {
       printf("Enter the line of text\n" );
       display();
       return 0;
   }
   void display()
   {
       char c;
       if((c=getchar())!='\n')
           display();
       putchar(c);
       return;
   }
   sunitha@sunitha-laptop:~/cpgm$ ./a.out
   Enter the line of text
   Welcome to c World
   
   dlroW c ot emocleW