- Make a variable called “total number of dots” and set its value to 0. Make a string variable called “cards” and set its value to the input entered by the end user (5 black and white cards). Check each letter of the string and if it’s ‘W’ add the corresponding number of dots (16 for the first letter, 8 for the second letter and so on) to the “total number of dots”. Display the “total number of dots” as the output.
- You can access a letter at the specified position in a string by using the 'Letter of' block under “Operators”.
Challenge 4.3
Count dots on 5 black and white cards as one input (without a loop)
Challenge Level: Growing experience
Requirement:
Write a program that asks the end user to enter 5 black and white cards representing bits, all as one line of input ('B' for black and 'W' for white), and displays the total number of dots as the output. You can do this without a loop, using 5 similar sets of blocks to process each of the 5 values.
Hints
Programming Reminders
Output statements
Output a string directly
Output a variable
Variables
Set a variable as a string
Set a variable as an integer
Set a variable from a calculation
Set a variable from a user input (text)
Set a variable from a user input (number)
Add one to a value
Conditionals
Find out the discount on fruit
Loops
Output string 10 times
Output number until number reaches 10
Recommended Blocks
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