LeetCode Day 21 - Interactive Grid (Leftmost Column with 1)
Every row of a grid has some number of 0's first and then 1's (so it's sorted). By asking queries about value of a cell, find out the leftmost column with at least one value 1. We can use binary search or something faster! Explanation of random order solution: https://codeforces.com/blog/entry/62602
Leetcode holds a 30-day Challenge in April with a new coding interview problem appearing each day, here's contest link: https://leetcode.com/explore/featured...
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