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Focus on Your Solving Process
Don't rush to solutions. Use hints to guide your thinking. The goal is to train pattern recognition, not memorize answers.
Problems (6)
Two Sum
EasyGiven an array of integers and a target, find two numbers that add up to the target.
StriverNeetCodeBlind75LeetCode
Pattern: Hash Map
Best Time to Buy and Sell Stock
EasyFind the maximum profit you can achieve from buying and selling a stock once.
StriverNeetCodeBlind75
Pattern: Sliding Window / Greedy
Contains Duplicate
EasyDetermine if an array contains any duplicate values.
StriverNeetCodeBlind75
Pattern: Hash Set
Maximum Subarray (Kadane's)
MediumFind the contiguous subarray with the largest sum.
StriverNeetCodeBlind75
Pattern: Dynamic Programming / Greedy
Product of Array Except Self
MediumReturn an array where each element is the product of all other elements except itself.
StriverNeetCodeBlind75
Pattern: Prefix/Suffix Arrays
Merge Intervals
MediumMerge all overlapping intervals and return non-overlapping intervals.
StriverNeetCodeBlind75
Pattern: Sorting + Merging
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