blob: 8953e841372bbf1b9eacf7d5181c042b46c29f5e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
#lang racket
(require "../../lib/utils.rkt")
(define fp (open-input-file "input"))
(define lines (get-lines fp))
(define (extract-number line)
(define number-list (filter char-numeric? (string->list line)))
(set! number-list (map (λ (c)
(string->number (list->string (list c))))
number-list))
(+ (last number-list) (* 10 (car number-list))))
(apply + (map extract-number lines))
|
