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Data update

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Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
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Task/Look-and-say-sequence/COBOL/look-and-say-sequence.cobol
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IDENTIFICATION DIVISION.
PROGRAM-ID. LOOK-AND-SAY-SEQ.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 SEQUENCES.
02 CUR-SEQ PIC X(80) VALUE "1".
02 CUR-CHARS REDEFINES CUR-SEQ
PIC X OCCURS 80 TIMES INDEXED BY CI.
02 CUR-LENGTH PIC 99 COMP VALUE 1.
02 NEXT-SEQ PIC X(80).
02 NEXT-CHARS REDEFINES NEXT-SEQ
PIC X OCCURS 80 TIMES INDEXED BY NI.
01 ALG-STATE.
02 STEP-AMOUNT PIC 99 VALUE 14.
02 ITEM-COUNT PIC 9.
PROCEDURE DIVISION.
LOOK-AND-SAY.
DISPLAY CUR-SEQ.
SET CI TO 1.
SET NI TO 1.
MAKE-NEXT-ENTRY.
MOVE 0 TO ITEM-COUNT.
IF CI IS GREATER THAN CUR-LENGTH GO TO STEP-DONE.
TALLY-ITEM.
ADD 1 TO ITEM-COUNT.
SET CI UP BY 1.
IF CI IS NOT GREATER THAN CUR-LENGTH
AND CUR-CHARS(CI) IS EQUAL TO CUR-CHARS(CI - 1)
GO TO TALLY-ITEM.
INSERT-ENTRY.
MOVE ITEM-COUNT TO NEXT-CHARS(NI).
MOVE CUR-CHARS(CI - 1) TO NEXT-CHARS(NI + 1).
SET NI UP BY 2.
GO TO MAKE-NEXT-ENTRY.
STEP-DONE.
MOVE NEXT-SEQ TO CUR-SEQ.
SET NI DOWN BY 1.
SET CUR-LENGTH TO NI.
SUBTRACT 1 FROM STEP-AMOUNT.
IF STEP-AMOUNT IS NOT EQUAL TO ZERO GO TO LOOK-AND-SAY.
STOP RUN.