题解 | #字符串排序#
字符串排序
https://www.nowcoder.com/practice/5190a1db6f4f4ddb92fd9c365c944584?tpId=37&tqId=21249&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3Fdifficulty%3D3%26page%3D1%26pageSize%3D50%26search%3D%26tpId%3D37%26type%3D37&difficulty=3&judgeStatus=undefined&tags=&title=
s = input()
ss = []
for ch in s:
if ch.isalpha():
ss.append(ch)
ss.sort(key = lambda x : x.lower())
ans = ""
j = 0
for i, ch in enumerate(s):
if ch.isalpha():
ans += ss[j]
j += 1
else:
ans += ch
print(ans)
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