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C program to check whether a number is Armstrong or not



Code 1:
1. Warp to check a number is Armstrong
2. C program to check whether a number is Armstrong or not
3. Simple c program for Armstrong number
4. Armstrong number in c with output

#include<stdio.h>
int main(){
    int num,r,sum=0,temp;

    printf("Enter a number: ");
    scanf("%d",&num);

    temp=num;
    while(num!=0){
         r=num%10;
         num=num/10;
         sum=sum+(r*r*r);
    }
    if(sum==temp)
         printf("%d is an Armstrong number",temp);
    else
         printf("%d is not an Armstrong number",temp);

    return 0;
}

Sample output:
Enter a number: 153
153 is an Armstrong number

The time complexity of a program that determines Armstrong number is: O (Number of digits)

Code 2:
1. Write a c program for Armstrong number
2. C program for Armstrong number generation
3. How to find Armstrong number in c
4. Code for Armstrong number in c

#include<stdio.h>
int main(){
    int num,r,sum,temp;
    int min,max;

    printf("Enter the minimum range: ");
    scanf("%d",&min);

    printf("Enter the maximum range: ");
    scanf("%d",&max);

    printf("Armstrong numbers in given range are: ");
    for(num=min;num<=max;num++){
         temp=num;
         sum = 0;

         while(temp!=0){
             r=temp%10;
             temp=temp/10;
             sum=sum+(r*r*r);
         }
         if(sum==num)
             printf("%d ",num);
    }

    return 0;
}

Sample output:
Enter the minimum range: 1
Enter the maximum range: 200
Armstrong numbers in given range are: 1 153

Code 3:
1. Armstrong number in c using for loop

#include<stdio.h>
int main(){
    int num,r,sum=0,temp;

    printf("Enter a number: ");
    scanf("%d",&num);

    for(temp=num;num!=0;num=num/10){
         r=num%10;
         sum=sum+(r*r*r);
    }
    if(sum==temp)
         printf("%d is an Armstrong number",temp);
    else
         printf("%d is not an Armstrong number",temp);

    return 0;
}

Sample output:
Enter a number: 370
370 is an Armstrong number
Logic of Armstrong number in c

Code 4:
1. C program to print Armstrong numbers from 1 to 500
2. C program for finding Armstrong numbers

#include<stdio.h>
int main(){
    int num,r,sum,temp;

    for(num=1;num<=500;num++){
         temp=num;
         sum = 0;

         while(temp!=0){
             r=temp%10;
             temp=temp/10;
             sum=sum+(r*r*r);
         }
         if(sum==num)
             printf("%d ",num);
    }

    return 0;
}
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