h-index cleanups

leetcode/stuff.py

@@ -383,35 +383,11 @@ def collect_min_jumps_from_board(board: list[int]) -> list[int]:
     return jumps + [len(board) - 1]
 
 
-def collect_scored_citations(citations: list[int]) -> list[int]:
-    return [
-        i for i, v in enumerate(list(sorted(citations, reverse=True))) if v >= (i + 1)
-    ]
-
-
-def collect_h_index_qualified_citations(citations: list[int]) -> set[int]:
-    census: dict[int, int] = collect_h_index_census_from_citations(citations)
-    return {k for k, v in census.items() if v >= k}
-
-
-def collect_h_index_census_from_citations(citations: list[int]) -> dict[int, int]:
-    census: dict[int, int] = {}
-
-    for n in set(citations):
-        census.setdefault(n, 0)
-
-        for paper in citations:
-            if paper >= n:
-                census[n] += 1
-
-    return census
-
-
 def h_index(citations: list[int]) -> int:
     last_qualified = None
 
-    for i, citation in enumerate(list(sorted(citations, reverse=True))):
-        if citation >= i + 1:
+    for i, citation_count in enumerate(list(sorted(citations, reverse=True))):
+        if citation_count >= i + 1:
             last_qualified = i + 1
         else:
             break