Interesting Programs at beginner stage

1. Write a c program without using any semicolon which output will : Hello word.

2. Swap two variables without using third variable.

Solution: 1

void main(){

    if(printf("Hello world")){

    }

} 

Solution: 2

int main(){

    int a=5,b=10;

//process one

    a=b+a;

    b=a-b;

    a=a-b;

    printf("a= %d  b=  %d",a,b);

//process two

    a=a^b;

    b=a^b;

    a=b^a;

    printf("\na= %d  b=  %d",a,b);  



 
Good Collection of C Programs for beginner: http://cquestionbank.blogspot.com/2010/07/c-program-examples.html
  

Good example on OOPs concept in C++
http://www.functionx.com/cpp/examples/index.htm