题解 | #字符统计#
字符统计
https://www.nowcoder.com/practice/c1f9561de1e240099bdb904765da9ad0
char=input()
dic={}
for i in char:
dic[i]=char.count(i)
dic1=list(dic.items())
dic1=dict(sorted(dic1,key=lambda x:ord(x[0])))
dic1=list(dic1.items())
dic1=sorted(dic1,key=lambda x:x[1],reverse=True)
for i in dic1:
print(i[0],end="")
