IPFL

AtCoder

IDabc199_c

Time2000ms

Memory256MB

Difficulty—

We have a string $S$ of length $2N$. You are given $Q$ queries on this string. In the $i$\-th query, given three integers $T_i$, $A_i$, and $B_i$, do the following: * if $T_i = 1$: swap the $A_i$\-th and $B_i$\-th characters of $S$; * if $T_i = 2$: swap the first $N$ characters and last $N$ characters of $S$ (the values $A_i$ and $B_i$ are not used). For example, if $S$ is `FLIP`, this query makes it `IPFL`. Print the string $S$ after processing all $Q$ queries in the order they are given. ## Constraints * $1 \le N \le 2 \times 10^5$ * $S$ is a string of length $2N$ consisting of uppercase English letters. * $1 \le Q \le 3 \times 10^5$ * $T_i$ is $1$ or $2$. * If $T_i = 1$, $1 \le A_i \lt B_i \le 2N$. * If $T_i = 2$, $A_i = B_i = 0$. ## Input Input is given from Standard Input in the following format: $N$ $S$ $Q$ $T_1$ $A_1$ $B_1$ $T_2$ $A_2$ $B_2$ $T_3$ $A_3$ $B_3$ $\hspace{21pt} \vdots$ $T_Q$ $A_Q$ $B_Q$ [samples]

Samples

Input #1

Output #1

LPFI

The $1$\-st query swaps the first $N$ characters and last $N$ characters of $S$, making it `IPFL`.  
The $2$\-nd query swaps the $1$\-st and $4$\-th characters of $S$, making it `LPFI`.

Input #2

Output #2

ILPF

API Response (JSON)

{
  "problem": {
    "name": "IPFL",
    "description": {
      "content": "We have a string $S$ of length $2N$.   You are given $Q$ queries on this string.   In the $i$\\-th query, given three integers $T_i$, $A_i$, and $B_i$, do the following: *   if $T_i = 1$: swap the $A_",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc199_c"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "We have a string $S$ of length $2N$.  \nYou are given $Q$ queries on this string.  \nIn the $i$\\-th query, given three integers $T_i$, $A_i$, and $B_i$, do the following:\n\n*   if $T_i = 1$: swap the $A_...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments