Q. Write a program to check whether the given number N is Armstrong number or not.
Armstrong Number :- A Armstrong Number is a number that is equal to sum of cubes of each digits.
For Example :- 153
So as we can see that the sum of cubes of each digit (1^3=1, 5^3=125, 3^3=27 => 1+125+27=153) is equal to it's number. So 153 is an Armstrong number.
Armstrong Number Algorithm
START step 1 : read number step 2 : set sum=0 and duplicate=number step 3 : reminder=number%10 step 4 : sum=sum+(reminder*reminder*reminder) step 5 : number=number/10 step 6 : repeat steps 4 to 6 until number > 0 step 7 : if sum = duplicate step 8 : display number is armstrong step 9 : else step 10 : display number is not armstrong STOP
Armstrong Number Program
#include <stdio.h> int main() { int num=153, new_num, rem, res = 0; new_num = num; while (new_num != 0) { rem = new_num % 10; res += rem * rem * rem; new_num /= 10; } if (res == num) printf("The number %d is an Armstrong number.", num); else printf("The number %d is not an Armstrong number.", num); return 0; }
#include <iostream> using namespace std; int main() { int N=153, num, rem, sum = 0; num = N; while(num != 0) { rem = num % 10; sum += rem * rem * rem; num /= 10; } if(sum == N) cout <<"The number "<< N <<" is an Armstrong number."; else cout <<"The number "<< N <<" is not an Armstrong number."; return 0; }
public class LFC { public static void main(String[] args) { int num = 153, new_num, rem, res = 0; new_num = num; while (new_num != 0) { rem = new_num % 10; res += Math.pow(rem, 3); new_num /= 10; } if(res == num) System.out.println("The number "+num+" is an Armstrong number."); else System.out.println("The number "+num+" is not an Armstrong number."); } }
num = 153 # initialize sum sum = 0 # find the sum of the cube of each digit temp = num while temp > 0: digit = temp % 10 sum += digit ** 3 temp //= 10 # display the result if num == sum: print("The number {0} is Armstrong number".format(num)) else: print("The number {0} is not Armstrong number".format(num))
using System; public class LFC { public static void Main(string[] args) { int n,r,sum=0,temp; n= 153; temp=n; while(n>0) { r=n%10; sum=sum+(r*r*r); n=n/10; } if(temp==sum) Console.Write("The number "+temp+" is Armstrong Number."); else Console.Write("The number "+temp+" is Not Armstrong Number."); } }
$num=153; $total=0; $x=$num; while($x!=0) { $rem=$x%10; $total=$total+$rem*$rem*$rem; $x=$x/10; } if($num==$total) { echo "The number $num is Armstrong number"; } else { echo "The number $num is not an Armstrong number"; }
#include <stdio.h> int main() { int num=153, new_num, rem, res = 0; new_num = num; while (new_num != 0) { rem = new_num % 10; res += rem * rem * rem; new_num /= 10; } if (res == num) printf("The number %d is an Armstrong number.", num); else printf("The number %d is not an Armstrong number.", num); return 0; }
Output
The number 153 is an Armstrong number.
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