题解 | 删除字符串中出现次数最少的字符
删除字符串中出现次数最少的字符
https://www.nowcoder.com/practice/05182d328eb848dda7fdd5e029a56da9
s = input()
dic = {}
for i in s:
if i not in dic:
dic[i] = 0
dic[i] += 1
min_ = min(dic.values())
li = []
for i in dic.items():
if i[1] == min_:
li.append(i[0])
for i in s:
if i not in li:
print(i,end="")
先用字典统计各个字母出现次数，找到出现次数最少的字母集
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