API Response (JSON)
{
"problem": {
"name": "「DTOI-5」#1f1e33",
"description": {
"content": "定义函数 $f(n) = \\displaystyle\\sum_{i = 1}^n \\sum_{j = 1}^n \\sum_{k = 1}^n [i + j + k = n] \\operatorname{lcm}(i, \\gcd(j, k))$ 给定 $n$,对于所有 $1 \\leq i \\leq n$,**求出所有** $f(i) \\bmod 998244353$ 的值。",
"description_type": "Markdown"
},
"platform": "Luogu",
"limit": {
"time_limit": 2000,
"memory_limit": 524288
},
"difficulty": {
"LuoguStyle": "P6"
},
"is_remote": true,
"is_sync": true,
"sync_url": null,
"sign": "LGP9308"
},
"statements": [
{
"statement_type": "Markdown",
"content": "定义函数 $f(n) = \\displaystyle\\sum_{i = 1}^n \\sum_{j = 1}^n \\sum_{k = 1}^n [i + j + k = n] \\operatorname{lcm}(i, \\gcd(j, k))$\n\n给定 $n$,对于所有 $1 \\leq i \\leq n$,**求出所有** $f(i) \\bmod 998244353$ 的值。\n\n## Input\n\n...",
"is_translate": false,
"language": "English"
}
]
}