Segment Tree And Binary Index Tree

There are a group of questions with tags "Segment Tree", "Binary Index Tree", "Divide and Conquer".

• 315. Count of Smaller Numbers After Self (Hard)

• 327. Count of Range Sum (Hard)

• 493. Reverse Pairs (Hard)

• 2031. Count Subarrays With More Ones Than Zeros (Medium)

• 2179. Count Good Triplets in an Array (Hard)