{"problem":{"name":"求阶乘的和","description":{"content":"给定正整数 $n$，求不大于 $n$ 的正整数的阶乘的和（即求 $1!+2!+3!+\\dots+n!$），输出阶乘的和。 阶乘定义为 $n!=n\\times (n-1)\\times (n-2)\\times \\cdots \\times 1$。例如，$5! = 5 \\times 4 \\times 3 \\times 2 \\times 1=120$。","description_type":"Markdown"},"platform":"Luogu","limit":{"time_limit":1000,"memory_limit":524288},"difficulty":{"LuoguStyle":"P1"},"is_remote":true,"is_sync":true,"sync_url":null,"sign":"LGB2153"},"statements":[{"statement_type":"Markdown","content":"给定正整数 $n$，求不大于 $n$ 的正整数的阶乘的和（即求 $1!+2!+3!+\\dots+n!$），输出阶乘的和。\n\n阶乘定义为 $n!=n\\times (n-1)\\times (n-2)\\times \\cdots \\times 1$。例如，$5! = 5 \\times 4 \\times 3 \\times 2 \\times 1=120$。\n\n## Input\n\n输入一行，包含一个正整数 $n(1 < n < 12)$。\n\n## Output\n\n输出一行，表示阶乘的和。\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"LGB2153","tags":["循环结构"],"sample_group":[["5","153"]],"created_at":"2026-03-03 11:09:25"}}