API Response (JSON)
{
"problem": {
"name": "[Ynoi2000] hpi",
"description": {
"content": "给定 $n$ 个互不相同的点 $(x_i,y_i)$,共 $m$ 次询问,每次询问给出 $A,B,C$,问满足 $x_i<x_j,\\;y_i<y_j,\\;Ax_i+By_i+C>0,\\;Ax_j+By_j+C>0$ 的二元组 $(i,j)$ 的个数。",
"description_type": "Markdown"
},
"platform": "Luogu",
"limit": {
"time_limit": 4000,
"memory_limit": 524288
},
"difficulty": {
"LuoguStyle": "P7"
},
"is_remote": true,
"is_sync": true,
"sync_url": null,
"sign": "LGP9996"
},
"statements": [
{
"statement_type": "Markdown",
"content": "给定 $n$ 个互不相同的点 $(x_i,y_i)$,共 $m$ 次询问,每次询问给出 $A,B,C$,问满足 $x_i<x_j,\\;y_i<y_j,\\;Ax_i+By_i+C>0,\\;Ax_j+By_j+C>0$ 的二元组 $(i,j)$ 的个数。\n\n## Input\n\n第一行两个数 $n,m$。\n\n接下来 $n$ 行每行两个数 $x_i,y_i$,$i=1,\\dots,n$。\n\n接下来 $m$...",
"is_translate": false,
"language": "English"
}
]
}