User talk:128.178.13.139

Welcome!
Hello! I noticed your contributions and wanted to welcome you to the Wikipedia community. I hope you like it here and decide to stay. You are welcome to edit anonymously; however, creating an account is free and has several benefits (for example, the ability to create pages, upload media and edit without one's IP address being visible to the public).

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Happy editing! CiaPan (talk) 09:28, 3 December 2021 (UTC)

December 2021
Hello. This is a message to let you know that one or more of your recent contributions, such as the edit you made to Binary heap, did not appear to be constructive and have been reverted. Please take some time to familiarise yourself with our policies and guidelines. You can find information about these at our welcome page which also provides further information about contributing constructively to this encyclopedia. If you only meant to make test edits, please use the sandbox for that. If you think I made a mistake, or if you have any questions, you may leave a message on my talk page. Thank you. CiaPan (talk) 09:28, 3 December 2021 (UTC)