Difference Array | Range update in O(1)

This video explains the difference array data structure which is used for range update in an array in constant time O(1). The difference array uses the technique of building gradient array and making exactly 2 changes per query in constant time in an array. A practice problem for this is range addition from leetcode 370. CODE LINK is present below as usual. If you find any difficulty or have any query then do COMMENT below. PLEASE help our channel by SUBSCRIBING and LIKE our video if you found it helpful...CYA :) ======================================PLEASE DONATE============================= 🧡 SUPPORT OUR WORK:   / techdose   💚 UPI-ID: surya.kahar@ybl 💞JOIN Membership:    / @techdose4u   ============================================================================== INSTAGRAM :   / surya.pratap.k   LinkedIn:   / surya-pratap-kahar-47bb01168   WEBSITE: https://techdose.co.in/ ======================================================================= USEFUL LINKS: 🟠Must do TIPS to ACE Virtual Interview:    • 🔴Must do Tips to ACE your virtual interview   🟢Best strategy to excel your coding interview:    • 🔴Best strategy to excel your coding interv...   🟡Get your dream job in 1 month:    • 🔴Get your dream job in 1 month | 30 days P...   🔵How to crack dream job in just 2 months:    • How to crack dream job in just 2 months   🟣7 Days DSA plan: https://techdose.co.in/7-days-dsa-che... RELATED LINKS: CODE LINK: https://gist.github.com/SuryaPratapK/...