귤 고르기→ Counter() 함수, most_common()

from collections import Counter
def solution(k, tangerine):
    
    list=Counter(tangerine).most_common()

    #종류의 수
    kind=1
    sum=list[0][1]
    for i in range(len(list)-1):
        if sum>=k:
            return kind
        
        else:
            sum+=list[i+1][1]
            kind+=1
    return kind