Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want solutions in C++, Java & Python Day 54/200: LeetCode 1832 — Check if the Sentence Is Pangram 🔤 A sentence is called a pangram if it contains all 26 letters of the English alphabet at least once. ⚡ Solve it efficiently using HashSet / frequency array in O(n). Follow @codewith_govind for 200 days of DSA 🚀 #Day54DSA #LeetCode1832 #Pangram #StringProblems #HashSet #DSA #ProblemSolving #CodingInterview #LeetCode #CodeWithGovind #200DaysD

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want solutions in C++, Java & Python Day 49/200: LeetCode 74 — Search a 2D Matrix 🔍 You are given a matrix where: Each row is sorted left to right The first element of each row is greater than the last element of the previous row Find whether a target value exists in the matrix. ✅ Optimal Approach (Binary Search – O(log(m×n))): Treat the 2D matrix as a flattened 1D array Index mapping: row = mid / cols col = mid % cols &#x1f

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