Day of the week of Christmas and New Year: Difference between revisions
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Catskill549 (talk | contribs) (added AWK) |
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Determine programatically and show on this page on what weekday Christmas Day, 2021 and New Year's Day, 2022 will fall or did fall. |
Determine programatically and show on this page on what weekday Christmas Day, 2021 and New Year's Day, 2022 will fall or did fall. |
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=={{header|ALGOL W}}== |
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Re-using code from the [[Day of the week]] task. |
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<lang algolw>begin % find the day of the week 25/12/2021 and 01/01/2022 fall on % |
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string(10) array dayName( 0 :: 6 ); |
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integer procedure Day_of_week ( integer value d, m, y ); |
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begin |
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integer j, k, mm, yy; |
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mm := m; |
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yy := y; |
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if mm <= 2 then begin |
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mm := mm + 12; |
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yy := yy - 1; |
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end if_m_le_2; |
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j := yy div 100; |
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k := yy rem 100; |
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(d + ( ( mm + 1 ) * 26 ) div 10 + k + k div 4 + j div 4 + 5 * j ) rem 7 |
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end Day_of_week; |
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dayName( 0 ) := "Saturday"; dayName( 1 ) := "Sunday"; dayName( 2 ) := "Monday"; |
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dayName( 3 ) := "Tuesday"; dayName( 4 ) := "Wednesday"; dayName( 5 ) := "Thursday"; |
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dayName( 6 ) := "Friday"; |
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write( "25th of December 2021 is a ", dayName( Day_of_week( 25, 12, 2021 ) ) ); |
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write( " 1st of January 2022 is a ", dayName( Day_of_week( 1, 1, 2022 ) ) ) |
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end.</lang> |
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{{out}} |
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<pre> |
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25th of December 2021 is a Saturday |
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1st of January 2022 is a Saturday |
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</pre> |
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=={{header|AWK}}== |
=={{header|AWK}}== |
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01 Jan 2022 is Saturday |
01 Jan 2022 is Saturday |
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</pre> |
</pre> |
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=={{header|Factor}}== |
=={{header|Factor}}== |
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{{works with|Factor|0.99 2021-06-02}} |
{{works with|Factor|0.99 2021-06-02}} |
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