Without PRINTF();

PROGRAM:
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
void main()
{
system("echo Hello World");
getch();
}
OUTPUT:

live prg

PROGRAM:
#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,a[7]={1,2,3,4,5,6,7};
clrscr();
for(i=0;i<7;i++)
{for(j=0;j<7;j++)
if(a[i]==a[j] ||i+j==6)
printf("%d",a[i]);
else
printf(" ");
printf("\n");   }
getch();
}

OUTPUT:

         Do you can't differentiate the visited link in Google?
          
         .
          Now you have blue color in visited links.

          You use Google Chrome Browser frequently and the unvisited and visited links colors are too                   close each other, very hard to distinguish.So  you can change the color of the links

         

 --- click SETTINGS
        --- click EXTENSION
        --- find the stylist extension and click OPTIONS
        --- click STYLES
        --- click ADD NEW STYLE
        --- copy & paste the following:
        A:visited { color: red ! important }
         --- name the style
        --- click the ALL SITE check box
        --- click SAVE---

             

        

                                     
                                      Dennis MacAlistair Ritchie

                 

                 Dennis MacAlistair Ritchie (September 9, 1941 – c. October 12, 2011) was an American computer scientist. He created the C programming language and, with long-time colleague Ken Thompson, the Unix operating system.

             Awards: Turing Award from the ACM in 1983.

                                 The Hamming Medal from the IEEE in 1990.

                                 The National Medal of Technology from President Clinton in 1999.

                                 The National Medal of Technology of 1998 from President Bill Clinton.
                                 
                                  The Japan Prize for Information and Communications of 2011.

                                              The  Achievement Award from  the Industrial Research Institute in2005.


             Link:https://en.wikipedia.org/wiki/Dennis_Ritchie