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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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1
Task/Factorial/COBOL/factorial-1.cobol Normal file
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MOVE FUNCTION FACTORIAL(num) TO result

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Task/Factorial/COBOL/factorial-2.cobol Normal file
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IDENTIFICATION DIVISION.
FUNCTION-ID. factorial_iterative.
DATA DIVISION.
LOCAL-STORAGE SECTION.
01 i PIC 9(38).
LINKAGE SECTION.
01 n PIC 9(38).
01 ret PIC 9(38).
PROCEDURE DIVISION USING BY VALUE n RETURNING ret.
MOVE 1 TO ret
PERFORM VARYING i FROM 2 BY 1 UNTIL n < i
MULTIPLY i BY ret
END-PERFORM
GOBACK.
END FUNCTION factorial_iterative.

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Task/Factorial/COBOL/factorial-3.cobol Normal file
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IDENTIFICATION DIVISION.
FUNCTION-ID. factorial_recursive.
DATA DIVISION.
LOCAL-STORAGE SECTION.
01 prev-n PIC 9(38).
LINKAGE SECTION.
01 n PIC 9(38).
01 ret PIC 9(38).
PROCEDURE DIVISION USING BY VALUE n RETURNING ret.
IF n = 0
MOVE 1 TO ret
ELSE
SUBTRACT 1 FROM n GIVING prev-n
MULTIPLY n BY factorial_recursive(prev-n) GIVING ret
END-IF
GOBACK.
END FUNCTION factorial_recursive.

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Task/Factorial/COBOL/factorial-4.cobol Normal file
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IDENTIFICATION DIVISION.
PROGRAM-ID. factorial_test.
ENVIRONMENT DIVISION.
CONFIGURATION SECTION.
REPOSITORY.
FUNCTION factorial_iterative
FUNCTION factorial_recursive.
DATA DIVISION.
LOCAL-STORAGE SECTION.
01 i PIC 9(38).
PROCEDURE DIVISION.
DISPLAY
"i = "
WITH NO ADVANCING
END-DISPLAY.
ACCEPT i END-ACCEPT.
DISPLAY SPACE END-DISPLAY.
DISPLAY
"factorial_iterative(i) = "
factorial_iterative(i)
END-DISPLAY.
DISPLAY
"factorial_recursive(i) = "
factorial_recursive(i)
END-DISPLAY.
GOBACK.
END PROGRAM factorial_test.