49 lines
1.2 KiB
COBOL
49 lines
1.2 KiB
COBOL
IDENTIFICATION DIVISION.
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PROGRAM-ID. DAY2PT1.
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ENVIRONMENT DIVISION.
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INPUT-OUTPUT SECTION.
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FILE-CONTROL.
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SELECT INPUT-FILE ASSIGN TO 'input.txt'
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ORGANIZATION IS LINE SEQUENTIAL
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ACCESS IS SEQUENTIAL.
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DATA DIVISION.
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FILE SECTION.
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FD INPUT-FILE.
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01 INPUT-RECORD PIC A(16).
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WORKING-STORAGE SECTION.
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01 WS-COMMAND.
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05 WS-CMD PIC A(16).
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05 WS-VAL PIC 9(1).
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01 WS-H PIC 9(10) USAGE IS COMP.
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01 WS-V PIC 9(10) USAGE IS COMP.
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01 WS-RESULT PIC Z(10).
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PROCEDURE DIVISION.
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START-ROUTINE.
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OPEN INPUT INPUT-FILE.
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READ-ROUTINE.
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MOVE SPACES TO INPUT-RECORD.
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MOVE SPACES TO WS-COMMAND.
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READ INPUT-FILE AT END GO TO END-ROUTINE.
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UNSTRING INPUT-RECORD DELIMITED BY SPACE
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INTO WS-CMD, WS-VAL.
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IF WS-CMD = 'forward' THEN
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ADD WS-VAL TO WS-H
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END-IF
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IF WS-CMD = 'down' THEN
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ADD WS-VAL TO WS-V
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END-IF
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IF WS-CMD = 'up' THEN
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SUBTRACT WS-VAL FROM WS-V
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END-IF
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GO TO READ-ROUTINE.
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END-ROUTINE.
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CLOSE INPUT-FILE.
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MULTIPLY WS-H BY WS-V GIVING WS-RESULT.
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DISPLAY 'Answer: 'WS-RESULT.
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STOP RUN.
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