90 and 270

AtCoder

IDcf16_exhibition_final_i

Time2000ms

Memory256MB

Difficulty—

#nck { width: 30px; height: auto; }Construct an $N$\-gon that satisfies the following conditions: * The polygon is simple (see notes for the definition). * Each edge of the polygon is parallel to one of the coordinate axes. * Each coordinate is an integer between $0$ and $10^9$, inclusive. * The vertices are numbered $1$ through $N$ in counter-clockwise order. * The internal angle at the $i$\-th vertex is exactly $a_i$ degrees. In case there are multiple possible answers, you can output any. ## Constraints * $3 ≤ N ≤ 1000$ * $a_i$ is either $90$ or $270$. ## Input The input is given from Standard Input in the following format: $N$ $a_1$ : $a_N$ [samples] ## Notes A polygon is called simple if each edge has a positive length, and no two edges have a common point (except for adjacent edges touching at a vertex).

Samples

Input #1

Output #1

Input #2

Output #2

\-1

API Response (JSON)

{
  "problem": {
    "name": "90 and 270",
    "description": {
      "content": "#nck { width: 30px; height: auto; }Construct an $N$\\-gon that satisfies the following conditions: *   The polygon is simple (see notes for the definition). *   Each edge of the polygon is parallel to",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "cf16_exhibition_final_i"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "#nck { width: 30px; height: auto; }Construct an $N$\\-gon that satisfies the following conditions:\n\n*   The polygon is simple (see notes for the definition).\n*   Each edge of the polygon is parallel to...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments