20250723

• browsed comments on my PR
• full-time job
  • https://www.mongodb.com/docs/manual/reference/operator/aggregation/count/#behavior

The $count stage is equivalent to the following $group and $project sequence:

db.collection.aggregate( [
   { $group: { _id: null, myCount: { $sum: 1 } } },
   { $project: { _id: 0 } }
] )

• replied back to the comments
  • digesting the algorithm, analyzing its time complexity
• reviewed pull requests
  • LeetCode 98. Validate Binary Search Tree
  • LeetCode 322. Coin Change
• LeetCode 973. K Closest Points to Origin
• updated my profile
• push ups

TODO:

• Union Find (Disjoint Set)
• check available facilities for passport request
• Fidelity

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