Sorting Queries

AtCoder

IDabc217_e

Time2000ms

Memory256MB

Difficulty—

We have an empty sequence $A$. You will be given $Q$ queries, which should be processed in the order they are given. Each query is of one of the three kinds below: * `1 x` : Append $x$ to the end of $A$. * `2` : Print the element at the beginning of $A$. Then, delete that element. It is guaranteed that $A$ will not empty when this query is given. * `3` : Sort $A$ in ascending order. ## Constraints * $1 \leq Q \leq 2 \times 10^5$ * $0 \leq x \leq 10^9$ * $A$ will not be empty when a query `2` is given. * All values in input are integers. ## Input Input is given from Standard Input in the following format: $Q$ $\mathrm{query} 1$ $\mathrm{query} 2$ $\vdots$ $\mathrm{query} Q$ The $i$\-th query, $\mathrm{query} i$, begins with the kind of query $c_i$ ($1$, $2$, or $3$). If $c_i = 1$, the line additionally has an integer $x$. In other words, each query is in one of the three formats below. $1$ $x$ $2$ $3$ [samples]

Samples

Input #1

Output #1

1
2

The $i$\-th line below shows the contents of $A$ after the $i$\-th query is processed in Sample Input $1$.

*   $(4)$
*   $(4, 3)$
*   $(4, 3, 2)$
*   $(4, 3, 2, 1)$
*   $(1, 2, 3, 4)$
*   $(2, 3, 4)$
*   $(2, 3, 4, 0)$
*   $(3, 4, 0)$

Input #2

Output #2

5
3
5

The $i$\-th line below shows the contents of $A$ after the $i$\-th query is processed in Sample Input $2$.

*   $(5)$
*   $(5, 5)$
*   $(5, 5, 3)$
*   $(5, 3)$
*   $(3, 5)$
*   $(5)$
*   $(5, 6)$
*   $(5, 6)$
*   $(6)$

API Response (JSON)

{
  "problem": {
    "name": "Sorting Queries",
    "description": {
      "content": "We have an empty sequence $A$. You will be given $Q$ queries, which should be processed in the order they are given. Each query is of one of the three kinds below: *   `1 x` : Append $x$ to the end o",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc217_e"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "We have an empty sequence $A$. You will be given $Q$ queries, which should be processed in the order they are given. Each query is of one of the three kinds below:\n\n*   `1 x` : Append $x$ to the end o...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments