题解 | #图片整理#
图片整理
https://www.nowcoder.com/practice/2de4127fda5e46858aa85d254af43941
import sys
str1=input()
dic1={}
for i in str1:
if ord(i) in dic1:
dic1[ord(i)]+=1
else:dic1[ord(i)]=1
dic1=sorted(dic1.items())
dic1=dict(dic1)
for k in dic1:
for j in range(dic1[k]):
print(chr(k),end='')
