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395. Longest Substring with At Least K Repeating Characters1052. Grumpy Bookstore Owner1208. Get Equal Substrings Within Budget487. Max Consecutive Ones IIlintcode 604 · Window Sum (basic)3. Longest Substring Without Repeating Characters340. Longest Substring with At Most K Distinct Characters (sliding window, hashmap, two pointers),424. Longest Repeating Character Replacement1151. Minimum Swaps to Group All 1's Together2134. Minimum Swaps to Group All 1's Together II1610. Maximum Number of Visible Points76. Minimum Window Substring (sliding window)567. Permutation in String438. Find All Anagrams in a String1004. Max Consecutive Ones III1248. Count Number of Nice Subarrays2516. Take K of Each Character From Left and Right424. Longest Repeating Character Replacement (ref to 1004Page 12
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