Authors:
Y Daniel Lang
Chapter:
Programming
Exercise:
Programming Excercises
Question:6 | ISBN:978013274719 | Edition: 6
Question
(Sum the digits in an integer) Write a program that reads an integer between 0 and 1000 and adds all the digits in the integer. For example, if an integer is 932, the sum of all its digits is 14. (Hint: Use the % operator to extract digits, and use the //operator to remove the extracted digit. For instance, 932 % 10 = 2 and 932 //10 = 93.) Here is a sample run:
Enter a number between 0 and 1000:999
The sum of the digits is 27
Answer
print("Enter a number between 0 and 1000: ")
number = int(input())
#Compute the sum of the digits in the integer
lessThan10 = int(number % 10)
#Extract the digit less than 10
number /= 10
#Remove the extracted digit
tens = int(number % 10)
#Extract the digit between 10 to 99
number /= 10;
#Remove the extracted digit
hundreds = int(number % 10)
#Extract the digit between 100 to 999
number /= 10
#Remove the extracted digit
sum = int(hundreds + tens + lessThan10)
#Display results
print("The sum of the digits is ",sum)
Output:
Enter a number between 0 and 1000:
999
The sum of the digits is 27
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