Description about Program to identify if the number is Armstrong number or not
Get an input number from user and check whether the given number is an Armstrong number or not.
E.g. Let the number be 1634,
Here 1^4 + 6^4 + 3 ^4 + 4^4 = 1634
Therefore, this is an Armstrong number
Input
153
Output
Armstrong number
Input
121
Output
Not an Armstrong number
C Program to identify if the number is Armstrong number or not
#include <stdio.h>
#include<math.h>
int main()
{
int num, copy, rem, result = 0, n = 0 ;
printf("Enter a number: ");
scanf("%d", &num);
copy = num;
while (num != 0)
{
num /= 10;
n++;
}
num = copy;
while (num != 0)
{
rem = num%10;
result += pow(rem, n);
num /= 10;
}
if(result == copy)
printf("Armstrong number");
else
printf("Not an Armstrong number");
return 0;
}
C++ Program to identify if the number is Armstrong number or not
#include <iostream>
#include<math.h>
using namespace std;
int main()
{
int num, copy, rem, result = 0, n = 0 ;
cout<<"Enter a number: ";
cin>>num;
copy = num;
while (num != 0)
{
num /= 10;
n++;
}
num = copy;
while (num != 0)
{
rem = num%10;
result += pow(rem, n);
num /= 10;
}
if(result == copy)
cout<<"Armstrong number";
else
cout<<"Not an Armstrong number";
return 0;
}
Java Program to identify if the number is Armstrong number or not
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number : ");
int num = sc.nextInt();
int copy = num;
int result=0;
int n=0;
int rem;
while (num != 0)
{
num /= 10;
n++;
}
num = copy;
while (num != 0)
{
rem = num%10;
int mul=1;
for(int i=1;i<=n;i++) {
mul=mul*rem;
}
result=result+mul;
num /= 10;
}
if(result==copy)
System.out.println("Armstrong Number");
else
System.out.println("Not Armstrong number");
}
}
Python Program to identify if the number is Armstrong number or not
import math
num=int(input("Enter a number: "))
value = [int(d) for d in str(num)]
result = 0
for i in range(0, len(value)):
result = result + math.pow(value[i], len(value))
if result==num:
print("Armstrong number")
else:
print("Not an armstrong number")
