NISHIO Hirokazu[Translate]
PAST4F
PAST4F
上または下と比べて出現回数が同じならAMBIGUOUS
python
def solve(N, K, SS): from collections import Counter c = Counter(SS).most_common() K -= 1 ck, ckv = c[K] if K > 0: _, pv = c[K - 1] if pv == ckv: return "AMBIGUOUS" if K < len(c) - 1: _, pv = c[K + 1] if pv == ckv: return "AMBIGUOUS" return ck

"Engineer's way of creating knowledge" the English version of my book is now available on [Engineer's way of creating knowledge]

(C)NISHIO Hirokazu / Converted from [Scrapbox] at [Edit]