𝐖𝐡𝐚𝐭 𝐡𝐚𝐩𝐩𝐞𝐧𝐬 𝐚𝐟𝐭𝐞𝐫 𝐬𝐮𝐛𝐦𝐢𝐭𝐭𝐢𝐧𝐠 𝐲𝐨𝐮𝐫 𝐜𝐨𝐝𝐞 𝐨𝐧 HackerRank and LeetCode 𝐰𝐨𝐫𝐤 𝐨𝐧 𝐭𝐡𝐞 𝐛𝐚𝐜𝐤𝐞𝐧𝐝?

Though there is NO official blog available for this, still I tried to attach the resources from different sites. When you click the "run" button on the website, an API request is sent to the back-end containing your code (along with other relevant i...