





![Can You Solve This Coding Interview Question? . LeetCode 219, "Contains Duplicate II," involves determining if there are any two distinct indices i and j in an array such that nums[i] equals nums[j]](https://image.pictame.com/img/541503085_18340047601202172_1883162149614758999_n.jpg?hash=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)





David Jiang is a verified Instagram micro influencer. With 23.8K followers and 12 posts, the_david_jiang's account shows a follower-to-following ratio of 2165.0:1. This profile demonstrates strong community engagement within its niche. View all content anonymously on Pictame - no login required.
the_david_jiang's engagement rate sits at 0.71%. For accounts with 10K-100K followers, the average is around 2.5%, so there's some room to grow — though every community is unique.
Out of the last 12 posts, 75% are videos and 25% are photos. Notably, photos tend to get 10.4x more engagement than videos. Content shows up about every 64 days. Captions lean detailed, averaging 1594 characters.
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David Jiang
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