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REM Advent of Code 2022: Day 3, part 2
REM Written in Applesoft BASIC
10 ONERR GOTO 900
20 PT = 0:SN = 0:GN = 1
30 PRINT CHR$ (4),"OPEN INPUT"
40 PRINT CHR$ (4),"READ INPUT"
100 S$ = ""
110 GET C$: GET D$
120 IF ASC (C$) = 13 GOTO 200
130 S$ = S$ + C$
140 GOTO 110
200 IF SN = 0 THEN X$ = S$:SN = 1: GOTO 100
210 IF SN = 1 THEN Y$ = S$:SN = 2: GOTO 100
220 Z$ = S$
230 SN = 0
240 PRINT "SEARCHING GROUP ";GN;"'s RUCKSACKS..."
250 GN = GN + 1
300 FOR I = 1 TO LEN (X$)
310 FOR J = 1 TO LEN (Y$)
320 IF MID$ (X$,I,1) = MID$ (Y$,J,1) GOTO 340
330 NEXT J: NEXT I
340 FOR J = 1 TO LEN (Z$)
370 IF MID$ (X$,I,1) = MID$ (Z$,J,1) GOTO 400
380 NEXT J: NEXT I
400 XC$ = MID$ (X$,I,1)
410 PR = ASC (XC$)
420 PR = PR - 64
430 IF PR > 32 THEN PP = PR - 32
440 IF PR < 32 THEN PP = PR + 26
450 PT = PT + PP
460 PRINT "FOUND ITEM TYPE FOR GROUP ";GN - 1;"'S BADGES: ";XC$
470 PRINT "APPLYING AUTHENTICITY STICKERS..."
480 FOR Q = 1 TO 1000: NEXT Q
490 PRINT "PRIORITY TOTAL IS NOW ";PT
499 GOTO 100
900 PRINT CHR$ (4),"CLOSE"
910 END
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