更新历史 - DFS（搜索）

feat: add code block tabs

fix(dp/knapsackm, memo, search/dfs, dlx, string/manacher, pam, sa, sam, trie): style fix

feat(search, dp, string): add semantic label for paragraph (#4261)

fix(dfs.md): python版本的dfs，把读入的n,m转化为int类型再传入dfs()。原版本是str类型，会报错。 (#3855)

chore: upgrade remark-clang-format (#3806)

fix:separated code from markdown file and add notes in search (#3404)

feat(search/dfs): add Python example (#3346)

apply bot

style: format markdown files with remark-lint

fix: appearance

代码与例题题意不符

style: format markdown files with remark-lint

格式化代码

将//的后面统一加上空格

/problemnew/show -> /problem

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