Armstrong or Not:
1.GIVEN NUMBER IS ARMSTRONG OR NOT :
#include<stdio.h>
#include<math.h>
int main()
{
int n,r,sum=0,d,c=0,e;
scanf("%d",&n);
d=n;
e=n;
while(n!=0)
{
n=n/10;
c=c+1;
}
while(d!=0)
{
r=d%10;
sum=sum+pow(r,c);
d=d/10;
}
if(sum==e)
{
printf("ARMSTRONG");
}
else
{
printf("NOT AN ARMSTRONG");
}
return 0;
}
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