Lexicographical Numbers | Leetcode 386

This problem explains generating lexicographically ordered numbers from 1 to N using most optimal recursion approach. ---------------------------------------------------------------------------------------------------------------------------------------------------------------- 🟣 JOIN our 𝐋𝐈𝐕𝐄 𝐢𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐭𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐩𝐫𝐨𝐠𝐫𝐚𝐦 through whatsapp query: +91 8918633037 🟣 𝐂𝐡𝐞𝐜𝐤𝐨𝐮𝐭 𝐚𝐥𝐥 𝐨𝐮𝐫 𝐂𝐨𝐮𝐫𝐬𝐞𝐬: https://techdose.co.in/ 🔵 LinkedIn:   / surya-pratap-kahar   🔴 INSTAGRAM:   / techdose_official   🟢 𝐓𝐞𝐜𝐡𝐝𝐨𝐬𝐞-𝟏𝟎𝟎 𝐬𝐡𝐞𝐞𝐭: https://docs.google.com/spreadsheets/... --------------------------------------------------------------------------------------------------------------------------------------------------------------- 𝐁𝐚𝐬𝐢𝐜𝐬 𝐨𝐟 𝐓𝐑𝐈𝐄:    • Basics of trie   𝐓𝐑𝐈𝐄 𝐢𝐧𝐬𝐞𝐫𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐬𝐞𝐚𝐫𝐜𝐡:    • Trie insertion and search   𝐓𝐑𝐈𝐄 𝐝𝐞𝐥𝐞𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐬𝐞𝐚𝐫𝐜𝐡:    • Trie deletion and search   𝐂𝐨𝐮𝐧𝐭 𝐧𝐮𝐦𝐛𝐞𝐫 𝐨𝐟 𝐬𝐭𝐫𝐢𝐧𝐠𝐬 𝐰𝐢𝐭𝐡 𝐠𝐢𝐯𝐞𝐧 𝐩𝐫𝐞𝐟𝐢𝐱:    • Count number of strings with given prefix   𝐂𝐎𝐃𝐄 𝐋𝐈𝐍𝐊: https://gist.github.com/SuryaPratapK/...