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60 lines
1.3 KiB
QBasic

REM Advent of Code 2022: Day 5, part 1
REM Written in Applesoft BASIC
10 DIM ST$(9)
20 FOR I = 0 TO 8:ST$(I) = "": NEXT I
30 ONERR GOTO 900
60 PRINT CHR$ (4),"OPEN INPUT"
70 PRINT CHR$ (4),"READ INPUT"
90 J = 1
91 K = 0
92 L = 0
93 DIM AC(3):AC(0) = 0:AC(1) = 0:AC(2) = 0
94 V = 0
100 GET C$: GET D$
110 CV = ASC (C$)
120 IF CV > 47 AND CV < 58 GOTO 300
130 IF J > 0 THEN J = J - 1: GOTO 100
140 IF CV < > 32 THEN ST$(K) = C$ + ST$(K)
150 J = 3
160 K = K + 1
170 IF K > 8 THEN K = 0
180 GOTO 100
300 FOR I = 0 TO 8
310 PRINT ST$(I)
320 NEXT I
325 PRINT
330 CL = 0
340 GET C$: GET Z$
350 IF CL = 13 AND ASC (C$) = 13 GOTO 400
360 CL = ASC (C$)
370 GOTO 340
400 GET C$: GET Z$
410 CV = ASC (C$)
420 IF CV < 48 OR CV > 57 GOTO 400
430 V = V * 10 + CV - 48
440 GET C$: GET Z$
445 CV = ASC (C$)
450 IF CV > 47 AND CV < 58 GOTO 430
460 AC(L) = V
465 V = 0
470 L = L + 1
480 IF L < 3 GOTO 400
485 AC(0) = AC(0) - 1
490 AC(1) = AC(1) - 1
495 AC(2) = AC(2) - 1
500 FOR I = 0 TO AC(0)
510 ST$(AC(2)) = ST$(AC(2)) + RIGHT$ (ST$(AC(1)),1)
515 IF LEN (ST$(AC(1))) = 1 THEN ST$(AC(1)) = "": GOTO 530
520 ST$(AC(1)) = LEFT$ (ST$(AC(1)), LEN (ST$(AC(1))) - 1)
530 NEXT I
600 FOR I = 0 TO 8
610 PRINT ST$(I)
620 NEXT I
625 PRINT
630 L = 0
640 GOTO 400
900 PRINT CHR$ (4),"CLOSE"
910 END