Fix leap year check

minh-swinburne · web-flow · commit 337475ae63c0 · 2024-11-24T11:41:11.000+07:00
Replace `!=` in `(year % 400) != 0` (line 49) with `==`

Justification: Years that are divisible by 100 (centurian == 100) but not by 400 (year % 400 != 0) are skipped and NOT leap year.
diff --git a/other/doomsday.py b/other/doomsday.py
@@ -46,7 +46,7 @@ def get_week_day(year: int, month: int, day: int) -> str:
     ) % 7
     day_anchor = (
         DOOMSDAY_NOT_LEAP[month - 1]
-        if (year % 4 != 0) or (centurian == 0 and (year % 400) == 0)
+        if (year % 4 != 0) or (centurian == 0 and (year % 400) != 0)
         else DOOMSDAY_LEAP[month - 1]
     )
     week_day = (dooms_day + day - day_anchor) % 7

Original file line number	Diff line number	Diff line change
`@@ -46,7 +46,7 @@ def get_week_day(year: int, month: int, day: int) -> str:`
`46`	`46`	`) % 7`
`47`	`47`	`day_anchor = (`
`48`	`48`	`DOOMSDAY_NOT_LEAP[month - 1]`
`49`		`- if (year % 4 != 0) or (centurian == 0 and (year % 400) == 0)`
	`49`	`+ if (year % 4 != 0) or (centurian == 0 and (year % 400) != 0)`
`50`	`50`	`else DOOMSDAY_LEAP[month - 1]`
`51`	`51`	`)`
`52`	`52`	`week_day = (dooms_day + day - day_anchor) % 7`