{"raw_statement":[{"iden":"statement","content":"给定一个仅由小写字母组成的字符串 $s$，求 $s$ 中最长的子串的长度，满足子串中所有字母均相等。"},{"iden":"input","content":"一行一个字符串 $s$。"},{"iden":"output","content":"一行一个整数，表示答案。"},{"iden":"note","content":"### 样例解释\n\n$\\tt aabaaaccdd$ 中满足所有字母相等的子串有 $\\tt a$，$\\tt aa$，$\\tt aaa$，$\\tt b$，$\\tt c$，$\\tt cc$，$\\tt d$，$\\tt dd$，其中最长的是 $\\tt aaa$，所以答案为 $3$。\n\n### 数据范围\n\n对于 $20\\%$ 数据，满足 $1\\le |s|\\le 100$。\n\n对于 $40\\%$ 数据，满足 $1\\le |s|\\le 1000$。\n\n对于 $100\\%$ 数据，满足 $1\\le |s|\\le 10^6$。"}],"translated_statement":null,"sample_group":[["aabaaaccdd","3"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}