CODETALK

#include<stdio.h> void main() { int array[100],j=0,n,i; printf("enter the no of elemnts in the array\n"); scanf("%d",&n); printf("enter the elements of the array\n"); for(i=0;i<n;i++) scanf("%d",&array[i]); for(i=1;i<n;i++) { if(array[j]<array[i]) j=i; } printf("\nthe position of largets element is= %d",j+1); }

#include<stdio.h> #define swap(a,b) {a=a+b;b=a-b;a=a-b;printf("x=%d y=%d",a,b);} void main() {     int x,y;     printf("enter the two numbers\n");     scanf("%d%d",&x,&y);     printf("the numbers before swapping are\n x=%d y=%d\n",x,y);     printf("the numbers after swapping are\n");     swap(x,y); } NOTE-  i have compiled this program in  codeblocks  if u do it  in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last. output image

if u want to know what is automorphic number then go to- http://en.wikipedia.org/wiki/Automorphic_number #include<stdio.h> void main() {     long int count=1,n,a,m,div=1,i;     printf("enter the number \n");     scanf("%d",&n);     a=n;     while((n/10)!=0)     {     n=n/10;     count++;     }     m=a*a;     for(i=1;i<=count;i++)         div=div*10;     if(m%div==a)     printf("\nit is an automorphic number");         else     printf("\nit is not an automorphic number"); } NOTE-  i have compiled this program in  codeblocks  if u do it  in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last. output window (click to enlarge).

#include<stdio.h> #define factor(num) {do{if(num%a==0){num=(num/a);printf("\n%d",a);}else a++;}while(num!=1);} void main() {     int a=2,num;     printf("enter the number\n");     scanf("%d",&num);     printf("%d",1);     factor(num); } NOTE-  i have compiled this program in  codeblocks  if u do it  in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last. output image  (click to enlarge).

#include<stdio.h> void main() {     int num,num2,num3,a=2,lcm=1;     printf("enter the three numbers\n");     scanf("%d%d%d",&num,&num2,&num3);     while((num!=1)||(num2!=1)||(num3!=1))         if((num%a==0)||(num2%a==0)||(num3%a==0))         {         if(num%a==0)num=num/a;     if(num2%a==0)num2=num2/a;     if(num3%a==0)num3=num3/a;     lcm=lcm*a;         }         else             a++;         printf("\nthe lcm of the three numbers is  %d",lcm); } NOTE-  i have compiled this program in  codeblocks  if u do it  in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last. here is the proof of the code running..........(click on the image to enlarge)

#include<stdio.h> void main() {     int a=2,num;     printf("enter the number");     scanf("%d",&num);     printf("the factors of the number are\n%d",1);     do     {         if(num%a==0)         {             num=(num/a);         printf("\n%d",a);         }         else             a++;     }while(num!=1); } NOTE-  i have compiled this program in  codeblocks  if u do it in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last.