{ "data": { "question": { "questionId": "1051", "questionFrontendId": "1055", "boundTopicId": null, "title": "Shortest Way to Form String", "titleSlug": "shortest-way-to-form-string", "content": null, "translatedTitle": null, "translatedContent": null, "isPaidOnly": true, "difficulty": "Medium", "likes": 1239, "dislikes": 65, "isLiked": null, "similarQuestions": "[{\"title\": \"Is Subsequence\", \"titleSlug\": \"is-subsequence\", \"difficulty\": \"Easy\", \"translatedTitle\": null}, {\"title\": \"Number of Matching Subsequences\", \"titleSlug\": \"number-of-matching-subsequences\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]", "exampleTestcases": "\"abc\"\n\"abcbc\"\n\"abc\"\n\"acdbc\"\n\"xyz\"\n\"xzyxz\"", "categoryTitle": "Algorithms", "contributors": [], "topicTags": [ { "name": "Two Pointers", "slug": "two-pointers", "translatedName": null, "__typename": "TopicTagNode" }, { "name": "String", "slug": "string", "translatedName": null, "__typename": "TopicTagNode" }, { "name": "Greedy", "slug": "greedy", "translatedName": null, "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": null, "stats": "{\"totalAccepted\": \"84.3K\", \"totalSubmission\": \"140.8K\", \"totalAcceptedRaw\": 84315, \"totalSubmissionRaw\": 140809, \"acRate\": \"59.9%\"}", "hints": [ "Which conditions have to been met in order to be impossible to form the target string?", "If there exists a character in the target string which doesn't exist in the source string then it will be impossible to form the target string.", "Assuming we are in the case which is possible to form the target string, how can we assure the minimum number of used subsequences of source?", "For each used subsequence try to match the leftmost character of the current subsequence with the leftmost character of the target string, if they match then erase both character otherwise erase just the subsequence character whenever the current subsequence gets empty, reset it to a new copy of subsequence and increment the count, do this until the target sequence gets empty. Finally return the count." ], "solution": { "id": "1694", "canSeeDetail": false, "paidOnly": true, "hasVideoSolution": false, "paidOnlyVideo": true, "__typename": "ArticleNode" }, "status": null, "sampleTestCase": "\"abc\"\n\"abcbc\"", "metaData": "{\r\n \"name\": \"shortestWay\",\r\n \"params\": [\r\n {\r\n \"name\": \"source\",\r\n \"type\": \"string\"\r\n },\r\n {\r\n \"name\": \"target\",\r\n \"type\": \"string\"\r\n }\r\n ],\r\n \"return\": {\r\n \"type\": \"integer\"\r\n }\r\n}\r\n", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "enableTestMode": false, "enableDebugger": true, "envInfo": "{\"cpp\": [\"C++\", \"

Compiled with clang 11 using the latest C++ 20 standard.

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Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.

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Most standard library headers are already included automatically for your convenience.

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OpenJDK 17. Java 8 features such as lambda expressions and stream API can be used.

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Most standard library headers are already included automatically for your convenience.

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Includes Pair class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.

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Python 2.7.12.

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Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.

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For Map/TreeMap data structure, you may use sortedcontainers library.

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Note that Python 2.7 will not be maintained past 2020. For the latest Python, please choose Python3 instead.

\"], \"c\": [\"C\", \"

Compiled with gcc 8.2 using the gnu11 standard.

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Your code is compiled with level one optimization (-O1). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.

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Most standard library headers are already included automatically for your convenience.

\\r\\n\\r\\n

For hash table operations, you may use uthash. \\\"uthash.h\\\" is included by default. Below are some examples:

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1. Adding an item to a hash.\\r\\n

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2. Looking up an item in a hash:\\r\\n

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C# 10 with .NET 6 runtime

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Node.js 16.13.2.

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Your code is run with --harmony flag, enabling new ES6 features.

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lodash.js library is included by default.

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For Priority Queue / Queue data structures, you may use 5.3.0 version of datastructures-js/priority-queue and 4.2.1 version of datastructures-js/queue.

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Ruby 3.1

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Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms

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Swift 5.5.2.

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Go 1.21

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Support https://godoc.org/github.com/emirpasic/gods@v1.18.1 library.

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Python 3.10.

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For Map/TreeMap data structure, you may use sortedcontainers library.

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Scala 2.13.7.

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Kotlin 1.9.0.

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Rust 1.58.1

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Supports rand v0.6\\u00a0from crates.io

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PHP 8.1.

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With bcmath module

\"], \"typescript\": [\"Typescript\", \"

TypeScript 5.1.6, Node.js 16.13.2.

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Your code is run with --harmony flag, enabling new ES2022 features.

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lodash.js library is included by default.

\"], \"racket\": [\"Racket\", \"

Run with Racket 8.3.

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Dart 2.17.3

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Your code will be run directly without compiling

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