make smaller function
[ozzloy@gmail.com/realm-of-racket-journey] / guess.rkt
CommitLineData
af293766 1#! /usr/bin/env racket
2#lang racket/base
3
4(define lower 1)
5(define upper 100)
6
7(define (guess)
8 (quotient (+ lower upper) 2))
f6d6062c 9
10(define (smaller)
11 (set! upper (max lower (sub1 (guess))))
12 (guess))
13