Question

happy numbers program

Answer 1

#include<stdio.h>

#include<conio.h>

int num,sum[500],prevsum,i,j,digit,res,orig,sums;

int square(int n);

main()

{

clrscr();

printf("Please enter a number: ");

scanf("%i",&orig);

num=orig;

for(i=1;i<=500;i++)

{

while(num>0)

{

digit=num%10;

num=num/10;

sums=sums+(digit*digit);

}

sum[i]=num;

prevsum=sum[i];

num=sum[i];

if((prevsum==1)||(prevsum==4))

break;

}

for(i=1;sum[i]>0;i++)

{

printf("%i--",sum[j]);

}

if(prevsum==1)

printf("%i is Happy number.",orig);

else if(prevsum==4)

printf("%i belongs to the unhappy numbers.",orig);

getche();

return 0;

}

HOPE YOUR PROBLEM IS CLEAR!!