{ "data": { "question": { "questionId": "665", "questionFrontendId": "665", "boundTopicId": null, "title": "Non-decreasing Array", "titleSlug": "non-decreasing-array", "content": "

Given an array nums with n integers, your task is to check if it could become non-decreasing by modifying at most one element.

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We define an array is non-decreasing if nums[i] <= nums[i + 1] holds for every i (0-based) such that (0 <= i <= n - 2).

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Example 1:

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\nInput: nums = [4,2,3]\nOutput: true\nExplanation: You could modify the first 4 to 1 to get a non-decreasing array.\n
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Example 2:

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\nInput: nums = [4,2,1]\nOutput: false\nExplanation: You cannot get a non-decreasing array by modifying at most one element.\n
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Constraints:

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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.

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C# 10 with .NET 6 runtime

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Node.js 16.13.2.

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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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Python 3.10.

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