{"problem":{"name":"最长最短单词","description":{"content":"输入 $1$ 行句子（不多于 $200$ 个单词，每个单词长度不超过 $100)$，只包含字母、空格、逗号和句号。单词由至少一个连续的字母构成，空格、逗号和句号都是单词间的间隔。 输出第 $1$ 个最长的单词和第 $1$ 个最短单词。","description_type":"Markdown"},"platform":"Luogu","limit":{"time_limit":1000,"memory_limit":131072},"difficulty":{"LuoguStyle":"P1"},"is_remote":true,"is_sync":true,"sync_url":null,"sign":"LGB2121"},"statements":[{"statement_type":"Markdown","content":"输入 $1$ 行句子（不多于 $200$ 个单词，每个单词长度不超过 $100)$，只包含字母、空格、逗号和句号。单词由至少一个连续的字母构成，空格、逗号和句号都是单词间的间隔。\n\n输出第 $1$ 个最长的单词和第 $1$ 个最短单词。\n\n## Input\n\n输入数据：一行句子。\n\n## Output\n\n输出数据：\n\n第 $1$ 行，第一个最长的单词。\n\n第 $2$ 行，第一个最短的单词。\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"LGB2121","tags":["字符串（入门）"],"sample_group":[["I am a student,i am studying Programming language C in Peking University.","Programming\nI"]],"created_at":"2026-03-03 11:09:25"}}