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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