{"problem":{"name":"求 1+2+3+...+N 的值","description":{"content":"用递归的方法求 $1+2+3+$ …… $+N$ 的值。","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":"LGB2142"},"statements":[{"statement_type":"Markdown","content":"用递归的方法求 $1+2+3+$ …… $+N$ 的值。\n\n## Input\n\n输入 $N$。\n\n## Output\n\n输出和。\n\n[samples]\n\n## Note\n\n$N\\le 200$","is_translate":false,"language":"English"}],"meta":{"iden":"LGB2142","tags":["函数与递归"],"sample_group":[["5","15"]],"created_at":"2026-03-03 11:09:25"}}