COBOL言語
IDENTIFICATION DIVISION.
PROGRAM-ID. LEAPYEAR.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 YEAR PIC 9(4).
PROCEDURE DIVISION.
DISPLAY "西暦年を入力してください: ".
ACCEPT YEAR.
IF YEAR MOD 4 = 0
AND (YEAR MOD 100 <> 0 OR YEAR MOD 400 = 0)
DISPLAY "うるう年です。"
ELSE
DISPLAY "うるう年ではありません。"
END-IF.
STOP RUN.