Coding Spirit

Algorithm Puzzles everyday every week sometimes: Sum of Left Leaves

Algorithm Puzzles everyday every week sometimes: Same Tree

Algorithm Puzzles everyday every week sometimes: Jump Game

Algorithm Puzzles everyday every week sometimes: Wildcard Matching

Algorithm Puzzles everyday every week sometimes: Valid Parentheses

Algorithm Puzzles everyday every week sometimes: Trapping Rain Water

AWS IoT allow user to use x.509 certificate to get services authentication(like KVS) via AWS IoT core. To verify if policies are correctly attached, we can use curl to check if temporary token can be granted or not:

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curl -H "x-amzn-iot-thingname:my_thing_name" --cert certificate.pem --key private.pem.key  https://xxxxxxxxxxxxxx.credentials.iot.us-east-1.amazonaws.com/role-aliases/my_thing_role_aliases/credentials --cacert cacert.pem

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Algorithm Puzzles everyday every week sometimes: Letter Combinations of a Phone Number

Algorithm Puzzles everyday every week sometimes: 3Sum Closest