DSA Carry Forward: Count pairs [a,g] Leaders Count Prefix Sum: -Range Sum of Queries Subarrays-1: print all SubArrays in new line print the SubArray sum print the subArray sum if the starting index given as 3 Max SubArray Sum Min SubArray Sum -SubArraySums which are Even -SubArraySums which are Odd -SubArraySums which are Even length with sum>=B SubArrays - 2: -sum of all subarray's sum contribution technique -Sliding Window Technique: