{ "data": { "question": { "questionId": "2635", "questionFrontendId": "2543", "boundTopicId": null, "title": "Check if Point Is Reachable", "titleSlug": "check-if-point-is-reachable", "content": "
There exists an infinitely large grid. You are currently at point (1, 1)
, and you need to reach the point (targetX, targetY)
using a finite number of steps.
In one step, you can move from point (x, y)
to any one of the following points:
(x, y - x)
(x - y, y)
(2 * x, y)
(x, 2 * y)
Given two integers targetX
and targetY
representing the X-coordinate and Y-coordinate of your final position, return true
if you can reach the point from (1, 1)
using some number of steps, and false
otherwise.
\n
Example 1:
\n\n\nInput: targetX = 6, targetY = 9\nOutput: false\nExplanation: It is impossible to reach (6,9) from (1,1) using any sequence of moves, so false is returned.\n\n\n
Example 2:
\n\n\nInput: targetX = 4, targetY = 7\nOutput: true\nExplanation: You can follow the path (1,1) -> (1,2) -> (1,4) -> (1,8) -> (1,7) -> (2,7) -> (4,7).\n\n\n
\n
Constraints:
\n\n1 <= targetX, targetY <= 109
Compiled with clang 11
using the latest C++ 20 standard.
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 17
. Java 8 features such as lambda expressions and stream API can be used.
Most standard library headers are already included automatically for your convenience.
\\r\\nIncludes Pair
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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.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\\r\\n\\r\\nNote that Python 2.7 will not be maintained past 2020. For the latest Python, please choose Python3 instead.
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Your code is compiled with level one optimization (-O1
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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:
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Node.js 16.13.2
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Your code is run with --harmony
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lodash.js library is included by default.
\\r\\n\\r\\nFor 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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Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms
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Go 1.21
Support https://godoc.org/github.com/emirpasic/gods@v1.18.1 library.
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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.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
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Kotlin 1.9.0
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Rust 1.58.1
Supports rand v0.6\\u00a0from crates.io
\"], \"php\": [\"PHP\", \"PHP 8.1
.
With bcmath module
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Your code is run with --harmony
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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
\\r\\n\\r\\nYour code will be run directly without compiling
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