Contests

AtCoder

IDaising2019_b

Time2000ms

Memory256MB

Difficulty—

You have written $N$ problems to hold programming contests. The $i$\-th problem will have a score of $P_i$ points if used in a contest. With these problems, you would like to hold as many contests as possible under the following condition: * A contest has three problems. The first problem has a score not greater than $A$ points, the second has a score between $A + 1$ and $B$ points (inclusive), and the third has a score not less than $B + 1$ points. The same problem should not be used in multiple contests. At most how many contests can be held? ## Constraints * $3 \leq N \leq 100$ * $1 \leq P_i \leq 20$ ($1 \leq i \leq N$) * $1 \leq A < B < 20$ * All values in input are integers. ## Input Input is given from Standard Input in the following format: $N$ $A$ $B$ $P_1$ $P_2$ $...$ $P_N$ [samples]

Samples

Input #1

7
5 15
1 10 16 2 7 20 12

Output #1

2

Two contests can be held by putting the first, second, third problems and the fourth, fifth, sixth problems together.

Input #2

8
3 8
5 5 5 10 10 10 15 20

Output #2

0

No contest can be held, because there is no problem with a score of $A = 3$ or less.

Input #3

3
5 6
5 6 10

Output #3

API Response (JSON)

{
  "problem": {
    "name": "Contests",
    "description": {
      "content": "You have written $N$ problems to hold programming contests. The $i$\\-th problem will have a score of $P_i$ points if used in a contest. With these problems, you would like to hold as many contests as ",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "aising2019_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "You have written $N$ problems to hold programming contests. The $i$\\-th problem will have a score of $P_i$ points if used in a contest.\nWith these problems, you would like to hold as many contests as ...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments