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()
lenth_s=len(s)
a=[]
b=''
for i in range(lenth_s):
a.append(s.count(s[i]))
a=sorted(a)
min=a[0]#找到最小值
for i in range(lenth_s):
if s.count(s[i])>min:
b+=s[i]#注意这里要用到字符串的加法
print(b)