A structured Java-based DSA repository built topic by topic in simple Hinglish notes. 1-JAVA Basics/basics.md 1-JAVA Basics/oops-advanced.md 1-JAVA Basics/collections-basics.md 1-JAVA Basics/algorithm ...

Explanation: n = 3 since there are 3 numbers, so all numbers are in the range [0,3]. 2 is the missing number in the range since it does not appear in nums.