06 2022 档案
摘要：You are given a string s formed by digits and '#'. We want to map s to English lowercase characters as follows: Characters ('a' to 'i') are represente
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摘要：When use AWS API gateway with lambda authorizer, you may get 403 Forbidden error code with the error message User is not authorized to access this res
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摘要：If you configure CORS (Cross-Origin Resource Sharing) for an API, API Gateway automatically sends a response to preflight OPTIONS requests, even if th
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摘要：AWS Lambda allows you to write customized authorizer for the API gateway, here is the video for Secure your API Gateway with Lambda Authorizer | Step
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摘要：Given an array of non-negative integers arr, you are initially positioned at start index of the array. When you are at index i, you can jump to i + ar
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摘要：AWS lambda function has some built-in packages, but when you use some other packages (like requests), you might get the following error: Unable to imp
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摘要：Given an integer n, return any array containing n unique integers such that they add up to 0. Example 1: Input: n = 5 Output: [-7,-1,1,3,4] Explanatio
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