Codeforces Round #410 (Div. 2)(A,字符串,水坑，B,暴力枚举，C,思维题，D,区间贪心)
timelimitpertest:2secondsmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputMikehasastringsconsistingofonlylowercaseEnglishletters.Hewantsto...
