🔢 (57/500) Arithmetic Subarrays 🔢 Solved the problem of checking whether given subarrays are arithmetic sequences! 📊 Efficient sorting & difference checks did the trick! 🚀 #DSA #Leetcode #ProblemSolving #Coding

🔄 (58/500) Two Repeated Elements 🔄 Identified two numbers that appear twice in an array while keeping their order intact! 🔢 Used hashing for an optimal solution! ✅ #DSA #Leetcode #Coding #ProblemSolving

📊 (59/500) More than N/K Occurrences 📊 Found elements appearing more than N/K times in an array! ⚡ Used frequency maps to optimize counting! 🔥 #DSA #Leetcode #Coding #ProblemSolving

🧮 (60/500) Number and Digit Sum 🧮 Counted numbers where the difference between the number and its digit sum meets the required condition! ✔️ Math and loops for an efficient solution! 🔥 #DSA #Leetcode #ProblemSolving #Coding

➕ (61/500) Find Triplets with Zero Sum ➕ Checked if an array contains a triplet whose sum is zero! ✅ Used sorting & two-pointer technique for an optimized approach! 🚀 #DSA #Leetcode #Coding #ProblemSolving

Solved: Smallest window containing 0, 1, and 2! 🔥 Found the shortest substring with all three digits. Efficient approach with sliding window. 🚀 #DSA #Coding #ProblemSolving

✅ Solved: Sum of two large numbers given as strings! 🚀 📝 Example: "2500" + "23" → "2523" | "25" + "23" → "48" #DSA #Coding #ProblemSolving

✅ Solved: Length of the longest substring without repeating characters! 🚀 📝 Example: "abcabcbb" → 3 | "bbbbb" → 1 | "pwwkew" → 3 #DSA #Coding #ProblemSolving

✅ Solved: Smallest window containing all characters of a string! 🚀 📝 Example: "AABBBCBBAC" → 3 ("BAC") | "aaab" → 2 ("ab") | "abcd" → 4 ("abcd") #DSA #Coding #ProblemSolving

📊 Excel Sheet Column Title 🔹 Convert N to its Excel column title! 🔹 1 → A, 27 → AA, 52 → AZ

🔠 Case-Specific Sorting 🔹 Sort uppercase & lowercase separately while keeping positions! 🔹 "DefRTSersUXI" → "DeIRSRefrTUX" #DSA #Coding #ProblemSolvin

🔁 Transform String Challenge 🧩 Rearrange A into B using only front insert operations! 🅰️ "bcad" ➡️ 🅱️ "abcd" → ✅ 1 move 💡 Count how many end-chars already match from the back! #DSA #CodingChallenge #ProblemSolving #LogicBuilding

👨‍👩‍👧 Triplet Family 🔢 Find 3 numbers where two add up to the third! 🧮 Sort the array ➕ Check all pairs! 💥 Example: [2, 3, 5] → ✅ 2 + 3 = 5 #DSA #CodingFun #ArrayMagic #ProblemSolving

✂️ Rope Cutting Challenge 🪢 Cut all ropes by the smallest length, repeat till zero! 📉 Track how many ropes remain after each cut! 💡 Ex: [5, 1, 2] → 3 ➡️ 2 ➡️ 1 #DSA #GreedyAlgo #ProblemSolving #CodingChallenge

🧩 Make Array Elements Unique 🎯 Increment elements to remove duplicates ⚙️ Only +1 allowed per move 📉 Minimize operations! 💡 Ex: [3,2,1,2,1,7] → 6 ops #DSA #GreedyAlgo #CodingChallenge #ProblemSolving

🔍 Kth Smallest Element 📦 Find the k-th smallest without using sort! 💡 Use Min Heap or QuickSelect for efficiency! Ex: [7, 10, 4, 3, 20, 15], k = 3 → ✅ 7 #DSA #Heap #QuickSelect #CodingChallenge #ProblemSolving

🔍 Smallest Positive Missing 📦 Find the first missing positive number in an array (may include negatives)! 💡 No extra space, O(n) time using index marking! Ex: [4, 7, -1, 1, 2] → ✅ 3 #DSA #Array #CodingChallenge #ProblemSolving #TechTips

🔁 String Formation Check 📦 Can a string be made by repeating a substring? 💡 Use LPS (KMP-style) to solve in O(n) time! Ex: "ababab" → ✅ "ab" repeated 3 times! #DSA #StringProblems #KMP #CodingChallenge #ProblemSolving #TechTips

🔁 String Formation Check Given string S and permutation P, find the minimum days to replace characters so no two adjacent ones are the same. Input: N = 4, S = "aabb", P = {2, 1, 3, 0} Output: 2 #StringProblems #DSA #TechTips

🔎 Search in a Strictly Sorted 2D Matrix! 📈 Each row is strictly increasing & starts > last of prev row. ⚡ Start from top-right: If mat[i][j] == x → ✅ mat[i][j] > x → j-- mat[i][j] < x → i++ O(n+m) time! 🚀 #Coding #DSA