Closed ji-0630 closed 1 year ago
def solution(s):
answer = []
for i in range(len(s)):
if s[:i][::-1].find(s[i]) == -1:
answer.append(s[:i][::-1].find(s[i]))
else:
answer.append(s[:i][::-1].find(s[i])+1)
return answer
def solution(s):
answer = []
dic = dict()
for i in range(len(s)):
if s[i] not in dic:
answer.append(-1)
else:
answer.append(i - dic[s[i]])
dic[s[i]] = i
return answer
문제 설명