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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
7735 changed files with 38060 additions and 199180 deletions
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Task/Almost-prime/COBOL/almost-prime.cobol
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IDENTIFICATION DIVISION.
PROGRAM-ID. ALMOST-PRIME.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 CONTROL-VARS.
03 K PIC 9.
03 I PIC 999.
03 SEEN PIC 99.
03 N PIC 999.
03 P PIC 99.
03 P-SQUARED PIC 9(4).
03 F PIC 99.
03 N-DIV-P PIC 999V999.
03 FILLER REDEFINES N-DIV-P.
05 NEXT-N PIC 999.
05 FILLER PIC 999.
88 N-DIVS-P VALUE ZERO.
01 OUT-VARS.
03 K-LN PIC X(70).
03 K-LN-PTR PIC 99.
03 LN-HDR.
05 FILLER PIC X(4) VALUE "K = ".
05 K-OUT PIC 9.
05 FILLER PIC X VALUE ":".
03 I-FMT.
05 FILLER PIC X VALUE SPACE.
05 I-OUT PIC ZZ9.
PROCEDURE DIVISION.
BEGIN.
PERFORM K-ALMOST-PRIMES VARYING K FROM 1 BY 1
UNTIL K IS GREATER THAN 5.
STOP RUN.
K-ALMOST-PRIMES.
MOVE SPACES TO K-LN.
MOVE 1 TO K-LN-PTR.
MOVE ZERO TO SEEN.
MOVE K TO K-OUT.
STRING LN-HDR DELIMITED BY SIZE INTO K-LN
WITH POINTER K-LN-PTR.
PERFORM I-K-ALMOST-PRIME VARYING I FROM 2 BY 1
UNTIL SEEN IS EQUAL TO 10.
DISPLAY K-LN.
I-K-ALMOST-PRIME.
MOVE ZERO TO F, P-SQUARED.
MOVE I TO N.
PERFORM PRIME-FACTOR VARYING P FROM 2 BY 1
UNTIL F IS NOT LESS THAN K
OR P-SQUARED IS GREATER THAN N.
IF N IS GREATER THAN 1, ADD 1 TO F.
IF F IS EQUAL TO K,
MOVE I TO I-OUT,
ADD 1 TO SEEN,
STRING I-FMT DELIMITED BY SIZE INTO K-LN
WITH POINTER K-LN-PTR.
PRIME-FACTOR.
MULTIPLY P BY P GIVING P-SQUARED.
DIVIDE N BY P GIVING N-DIV-P.
PERFORM DIVIDE-FACTOR UNTIL NOT N-DIVS-P.
DIVIDE-FACTOR.
MOVE NEXT-N TO N.
ADD 1 TO F.
DIVIDE N BY P GIVING N-DIV-P.