C funda

C Program without a Header File It is possible to write a c program without using a header file
. For this we have to do the following :
 We will first have to save the program with the extension .c . 
eg: wht.c 
After this execute the file. The compiler will itself include the header files.
 This will work in the case of C++ also.
 Example Problem:
 void main()
 {
 int a,b,c;
 printf("Enter the values of a and b ");
 scanf("%d %d",&a,&b);
 c= a+b;
c++ printf("The value is %d",c);
 }
After writing the code , save with .c extension and then execute.