{ "data": { "question": { "questionId": "3595", "questionFrontendId": "3365", "boundTopicId": null, "title": "Rearrange K Substrings to Form Target String", "titleSlug": "rearrange-k-substrings-to-form-target-string", "content": "
You are given two strings s
and t
, both of which are anagrams of each other, and an integer k
.
Your task is to determine whether it is possible to split the string s
into k
equal-sized substrings, rearrange the substrings, and concatenate them in any order to create a new string that matches the given string t
.
Return true
if this is possible, otherwise, return false
.
An anagram is a word or phrase formed by rearranging the letters of a different word or phrase, using all the original letters exactly once.
\n\nA substring is a contiguous non-empty sequence of characters within a string.
\n\n\n
Example 1:
\n\nInput: s = "abcd", t = "cdab", k = 2
\n\nOutput: true
\n\nExplanation:
\n\ns
into 2 substrings of length 2: ["ab", "cd"]
.["cd", "ab"]
, and then concatenating them results in "cdab"
, which matches t
.Example 2:
\n\nInput: s = "aabbcc", t = "bbaacc", k = 3
\n\nOutput: true
\n\nExplanation:
\n\ns
into 3 substrings of length 2: ["aa", "bb", "cc"]
.["bb", "aa", "cc"]
, and then concatenating them results in "bbaacc"
, which matches t
.Example 3:
\n\nInput: s = "aabbcc", t = "bbaacc", k = 2
\n\nOutput: false
\n\nExplanation:
\n\ns
into 2 substrings of length 3: ["aab", "bcc"]
.t = "bbaacc"
, so the output is false
.\n
Constraints:
\n\n1 <= s.length == t.length <= 2 * 105
1 <= k <= s.length
s.length
is divisible by k
.s
and t
consist only of lowercase English letters.s
and t
are anagrams of each other.s
into k
equal-sized substrings, use a map to track frequencies, and check if rearranging them can form t
."
],
"solution": null,
"status": null,
"sampleTestCase": "\"abcd\"\n\"cdab\"\n2",
"metaData": "{\n \"name\": \"isPossibleToRearrange\",\n \"params\": [\n {\n \"type\": \"string\",\n \"name\": \"s\"\n },\n {\n \"type\": \"string\",\n \"name\": \"t\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"k\"\n }\n ],\n \"return\": {\n \"type\": \"boolean\"\n }\n}",
"judgerAvailable": true,
"judgeType": "large",
"mysqlSchemas": [],
"enableRunCode": true,
"enableTestMode": false,
"enableDebugger": true,
"envInfo": "{\"cpp\": [\"C++\", \"Compiled with clang 19
using the latest C++ 23 standard, and libstdc++
provided by GCC 14.
Your code is compiled with level two optimization (-O2
). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
\"], \"java\": [\"Java\", \"OpenJDK 21
. Using compile arguments: --enable-preview --release 21
Most standard library headers are already included automatically for your convenience.
\\r\\nIncludes Pair
class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.
Python 2.7.18
.
Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\\r\\n\\r\\nNote that Python 2.7 is not maintained anymore. For the latest Python, please choose Python3 instead.
\"], \"c\": [\"C\", \"Compiled with gcc 14
using the gnu11 standard.
Your code is compiled with level one optimization (-O2
). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
\\r\\n\\r\\nFor hash table operations, you may use uthash. \\\"uthash.h\\\" is included by default. Below are some examples:
\\r\\n\\r\\n1. Adding an item to a hash.\\r\\n
\\r\\nstruct hash_entry {\\r\\n int id; /* we'll use this field as the key */\\r\\n char name[10];\\r\\n UT_hash_handle hh; /* makes this structure hashable */\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n\\r\\n\\r\\n\\r\\n
2. Looking up an item in a hash:\\r\\n
\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n struct hash_entry *s;\\r\\n HASH_FIND_INT(users, &user_id, s);\\r\\n return s;\\r\\n}\\r\\n\\r\\n\\r\\n\\r\\n
3. Deleting an item in a hash:\\r\\n
\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n HASH_DEL(users, user); \\r\\n}\\r\\n\\r\\n\"], \"csharp\": [\"C#\", \"
C# 12 with .NET 8 runtime
\"], \"javascript\": [\"JavaScript\", \"Node.js 20.10.0
.
Your code is run with --harmony
flag, enabling new ES6 features.
lodash.js library is included by default.
\\r\\n\\r\\nFor Priority Queue / Queue data structures, you may use 5.4.0 version of datastructures-js/priority-queue and 4.2.3 version of datastructures-js/queue and 1.0.4 version of datastructures-js/deque.
\"], \"ruby\": [\"Ruby\", \"Ruby 3.2
Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms
\"], \"swift\": [\"Swift\", \"Swift 5.10
.
You may use swift-algorithms 1.2.0 and swift-collections 1.1.4.
\"], \"golang\": [\"Go\", \"Go 1.23
Support https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1 and https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha library.
\"], \"python3\": [\"Python3\", \"Python 3.11
.
Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\"], \"scala\": [\"Scala\", \"Scala 3.3.1
.
Kotlin 1.9.0
.
We are using an experimental compiler provided by JetBrains.
\"], \"rust\": [\"Rust\", \"Rust 1.79.0
. Your code will be compiled with opt-level
2.
Supports rand v0.8 and regex\\u00a0v1 from crates.io
\"], \"php\": [\"PHP\", \"PHP 8.2
.
With bcmath module
\"], \"typescript\": [\"Typescript\", \"TypeScript 5.1.6, Node.js 20.10.0
.
Compile Options: --alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2022
Your code is run with --harmony
flag, enabling new ES2022 features.
lodash.js library is included by default.
\\r\\n\\r\\nFor Priority Queue / Queue data structures, you may use 5.4.0 version of datastructures-js/priority-queue and 4.2.3 version of datastructures-js/queue and 1.0.4 version of datastructures-js/deque.
\"], \"racket\": [\"Racket\", \"Racket CS v8.15
\\r\\n\\r\\nUsing #lang racket
Required data/gvector data/queue data/order data/heap
automatically for your convenience
Dart 3.2. You may use package collection
\\r\\n\\r\\nYour code will be run directly without compiling
\"]}", "libraryUrl": null, "adminUrl": null, "challengeQuestion": null, "__typename": "QuestionNode" } } }