GENERATING ARMSTRONG NUMBERS
Aim:
To write a shell program to print the Armstrong numbers between the given limit.
Algorithm:
1. Start the program.
2. Get the boundary value from the user.
3. Initialize i = 1.
4. If i n then assign number = i.
5. If i not equal to number then separate the digits of the number by dividing the number by 10.
6. The remainder value is cubed and it is added to the sum value.
7. Change the number = number I 10.
8. Repeat steps 5 to 7.
9. Check the number and the summed value. If both are same then that number is an Armstrong number.
10. Increment the i value by 1.
11. Repeat steps4to 10.
12. Stop the program.
1. Start the program.
2. Get the boundary value from the user.
3. Initialize i = 1.
4. If i n then assign number = i.
5. If i not equal to number then separate the digits of the number by dividing the number by 10.
6. The remainder value is cubed and it is added to the sum value.
7. Change the number = number I 10.
8. Repeat steps 5 to 7.
9. Check the number and the summed value. If both are same then that number is an Armstrong number.
10. Increment the i value by 1.
11. Repeat steps4to 10.
12. Stop the program.
Program:
#Armstrong Number Generation
echo “Enter the boundary”
read n
jt 1
while test $i —ne $no
do
flag = 0
no = $i
while test $i —ne 30
do
r =‘expr$i%10’
flag = ‘expr $flag + $r ““ $r “K” $r’
i=’expr$iI 10
#Armstrong Number Generation
echo “Enter the boundary”
read n
jt 1
while test $i —ne $no
do
flag = 0
no = $i
while test $i —ne 30
do
r =‘expr$i%10’
flag = ‘expr $flag + $r ““ $r “K” $r’
i=’expr$iI 10
do
if test $flag —eq $no
then
echo “is an Armstrong Number”
echo “is an Armstrong Number”
fi
sf0
‘expr$i+l’ done
‘expr$i+l’ done
Enter the boundary
200
1 is an Armstrong number
153 is an Armstrong number.
153 is an Armstrong number.
Result
Thus the program is written and executed for displaying Armstrong numbers
between the given limits.
between the given limits.
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