A three digit number is called a sandwich number if the sum of its first and last digit is equal to its middle digit. Accept a three digit number as input and print sandwich if the number is a sandwich number. Print plain if the number is not a sandwich number. Select the correct implementation of the code that achieves this.1num = int(input())2first, middle, last = num[0], num[1], num[2]3if first + last == middle:4 print('sandwich')5else:6 print('plain')1num = input()2first, middle, last = num[0], num[1], num[2]3if first + last == middle:4 print('sandwich')5else:6 print('plain')1num = input()2first, middle, last = int(num[0]), int(num[1]), int(num[2])3if first + last == middle:4 print('sandwich')5else:6 print('plain')1num = int(input())2first, middle, last = int(num[0]), int(num[1]), int(num[2])3if first + last == middle:4 print('sandwich')5else:6 print('plain')
Question
A three digit number is called a sandwich number if the sum of its first and last digit is equal to its middle digit. Accept a three digit number as input and print sandwich if the number is a sandwich number. Print plain if the number is not a sandwich number. Select the correct implementation of the code that achieves this.1num = int(input())2first, middle, last = num[0], num[1], num[2]3if first + last == middle:4 print('sandwich')5else:6 print('plain')1num = input()2first, middle, last = num[0], num[1], num[2]3if first + last == middle:4 print('sandwich')5else:6 print('plain')1num = input()2first, middle, last = int(num[0]), int(num[1]), int(num[2])3if first + last == middle:4 print('sandwich')5else:6 print('plain')1num = int(input())2first, middle, last = int(num[0]), int(num[1]), int(num[2])3if first + last == middle:4 print('sandwich')5else:6 print('plain')
Solution
The correct implementation of the code is:
num = input()
first, middle, last = int(num[0]), int(num[1]), int(num[2])
if first + last == middle:
print('sandwich')
else:
print('plain')
This code works by first taking the input as a string. This allows us to easily access each digit of the number by indexing the string. We then convert each digit back into an integer so we can perform arithmetic operations on them. If the sum of the first and last digit equals the middle digit, we print 'sandwich'. Otherwise, we print 'plain'.
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