What is Strivers A2Z DSA Sheet? This Sheet is made for people who want to learn DSA from A to Z for free in a well-organized and structured manner by Raj Vikramaditya(Striver Bhaiya) & their Take You ...

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.