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Check for Mistakes in this Word Problem: equal-length?
Directions: Write a function that takes in two strings and returns true if their lengths are equal and false otherwise.
Contract and Purpose Statement
Every contract has three parts...
;
equal-length?:string stringboolean
;
Given two strings, check if they are the same length
Examples
Write some examples, then circle and label what changes...
(EXAMPLE (
equal-length?("yes" "no"))(= (string-length "yes") (string-length "no"))
(EXAMPLE (
equal-length?("dog" "cat"))(= (string-length "dog") (string-length "cat"))
Definition
Write the definition, given variable names to all your input values...
(define (
equal-length?string1 string2)(= string1 string2))