is Armstrong Algorithm

During this mission with pilot David Scott, he performed the first docking of two spacecraft; the mission was aborted after Armstrong used some of his re-entry control fuel to stabilize a dangerous roll caused by a stuck thruster. A graduate of Purdue University, Armstrong study aeronautical technology; his college tuition was pay for by the America Navy under the Holloway plan.
#include<stdio.h>

int main()
{
	int n, sum=0, i, num;
	printf("Enter number: ");
	scanf("%d",&n);
	num=n;
	while (n!=0)
	{
		i=n%10;
		sum=sum+(i*i*i);
		n=n/10;
	}
	if (sum==num)
	{
		printf("%d is an armstrong number!\n", num);
	}
	else
	{
		printf("%d is not an armstrong number!\n", num);
	}
	return 0;
}

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