結果
問題 |
No.1 道のショートカット
|
ユーザー |
|
提出日時 | 2019-09-09 18:24:32 |
言語 | Scheme (Gauche-0.9.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,466 bytes |
コンパイル時間 | 234 ms |
コンパイル使用メモリ | 6,944 KB |
実行使用メモリ | 31,688 KB |
最終ジャッジ日時 | 2024-07-08 05:16:24 |
合計ジャッジ時間 | 14,532 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | WA * 4 |
other | WA * 40 |
ソースコード
(use gauche.array) (use data.queue) (define (read-number) (string->number (read-line))) (define (read-numbers) (map string->number (string-split (read-line) #\space))) (let* ((n (read-number)) (c (read-number)) (v (read-number)) (s (read-numbers)) (t (read-numbers)) (y (read-numbers)) (m (read-numbers))) (define graph (make-vector (+ n 1) '())) (define visited (make-vector (+ n 1) #f)) (define times (make-array (shape 0 (+ n 1) 0 (+ c 1)) (ash 1 30))) (define q (make-queue)) (for-each (lambda (x y z w) (vector-set! graph x (cons (cons y (cons z w)) (vector-ref graph x '())))) s t y m) (print graph) (array-set! times 1 0 0) (queue-push! q 1) (let loop () (unless (queue-empty? q) (let1 from (dequeue! q) (let inner ((nodes (vector-ref graph from))) (unless (null? nodes) (let* ((node (car nodes)) (to (car node)) (cost (cadr node)) (time (cddr node))) (for-each (lambda (i) (if (>= (- i cost) 0) (let1 t (+ time (array-ref times from (- i cost))) (if (<= t (array-ref times to i)) (array-set! times to i t))))) (iota (+ c 1))) (unless (vector-ref visited to) (enqueue! q to) (vector-set! visited to #t))) (inner (cdr nodes))))) (loop))) (let1 val (apply min (map (lambda (i) (array-ref times n i)) (iota (+ c 1)))) (print (if (= val (ash 1 30)) -1 val))))