题解 | #字符统计#
字符统计
https://www.nowcoder.com/practice/c1f9561de1e240099bdb904765da9ad0
import sys
for line in sys.stdin:
dic: dict = {}
for x in line.strip("\n"):
if x not in dic.keys():
dic[x] = 1
else:
dic[x] += 1
# print(dic)
print("".join(str(x[0]) for x in sorted(dic.items(), key=lambda x: (-x[1], x[0]))))
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