{
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      "slug": "two-sum",
      "title": "Two Sum",
      "url": "https://leetcode.com/problems/two-sum",
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    {
      "slug": "valid-parentheses",
      "title": "Valid Parentheses",
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      "duration": 20,
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      "slug": "merge-two-sorted-lists",
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      "slug": "best-time-to-buy-and-sell-stock",
      "title": "Best Time to Buy and Sell Stock",
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      "id": 121,
      "topic": "array",
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      "slug": "valid-palindrome",
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      "slug": "invert-binary-tree",
      "title": "Invert Binary Tree",
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      "slug": "valid-anagram",
      "title": "Valid Anagram",
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      "duration": 15,
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      "id": 242,
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      "slug": "binary-search",
      "title": "Binary Search",
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      "duration": 15,
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    {
      "slug": "flood-fill",
      "title": "Flood Fill",
      "url": "https://leetcode.com/problems/flood-fill",
      "duration": 20,
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      "priority": 0,
      "id": 733,
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    {
      "slug": "maximum-subarray",
      "title": "Maximum Subarray",
      "url": "https://leetcode.com/problems/maximum-subarray",
      "duration": 20,
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    {
      "slug": "lowest-common-ancestor-of-a-binary-search-tree",
      "title": "Lowest Common Ancestor of a Binary Search Tree",
      "url": "https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree",
      "duration": 20,
      "epi": 1,
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      "priority": 0,
      "id": 235,
      "topic": "binary-search-tree",
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    {
      "slug": "insert-interval",
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      "duration": 25,
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      "priority": 0,
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      "topic": "array",
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      "slug": "01-matrix",
      "title": "01 Matrix",
      "url": "https://leetcode.com/problems/01-matrix",
      "duration": 30,
      "epi": null,
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      "priority": 0,
      "id": 542,
      "topic": "graph",
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    {
      "slug": "k-closest-points-to-origin",
      "title": "K Closest Points to Origin",
      "url": "https://leetcode.com/problems/k-closest-points-to-origin",
      "duration": 30,
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      "difficulty": "Medium",
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      "priority": 0,
      "id": 1014,
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    {
      "slug": "balanced-binary-tree",
      "title": "Balanced Binary Tree",
      "url": "https://leetcode.com/problems/balanced-binary-tree",
      "duration": 15,
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      "priority": 1,
      "id": 110,
      "topic": "binary-tree",
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    {
      "slug": "linked-list-cycle",
      "title": "Linked List Cycle",
      "url": "https://leetcode.com/problems/linked-list-cycle",
      "duration": 20,
      "epi": 1,
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      "priority": 1,
      "id": 141,
      "topic": "linked-list",
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    {
      "slug": "implement-queue-using-stacks",
      "title": "Implement Queue using Stacks",
      "url": "https://leetcode.com/problems/implement-queue-using-stacks",
      "duration": 20,
      "epi": 3,
      "difficulty": "Easy",
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      "priority": 1,
      "id": 232,
      "topic": "stack",
      "routines": []
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    {
      "slug": "first-bad-version",
      "title": "First Bad Version",
      "url": "https://leetcode.com/problems/first-bad-version",
      "duration": 20,
      "epi": null,
      "difficulty": "Easy",
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      "leetCodeScore": 20.7,
      "priority": 1,
      "id": 278,
      "topic": "binary-search",
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    {
      "slug": "ransom-note",
      "title": "Ransom Note",
      "url": "https://leetcode.com/problems/ransom-note",
      "duration": 15,
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      "difficulty": "Easy",
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      "leetCodeScore": 16.6,
      "priority": 1,
      "id": 383,
      "topic": "hash-table",
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    {
      "slug": "longest-substring-without-repeating-characters",
      "title": "Longest Substring Without Repeating Characters",
      "url": "https://leetcode.com/problems/longest-substring-without-repeating-characters",
      "duration": 30,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
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      "priority": 1,
      "id": 3,
      "topic": "string",
      "routines": ["sliding-window"]
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    {
      "slug": "3sum",
      "title": "3Sum",
      "url": "https://leetcode.com/problems/3sum",
      "duration": 30,
      "epi": 0,
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      "likes": 0.527,
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      "leetCodeScore": 52,
      "priority": 1,
      "id": 15,
      "topic": "array",
      "routines": ["two-pointers"]
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    {
      "slug": "binary-tree-level-order-traversal",
      "title": "Binary Tree Level Order Traversal",
      "url": "https://leetcode.com/problems/binary-tree-level-order-traversal",
      "duration": 20,
      "epi": 1,
      "difficulty": "Medium",
      "premium": false,
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      "leetCodeScore": 73.6,
      "priority": 1,
      "id": 102,
      "topic": "binary-tree",
      "routines": []
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  "Week 3": [
    {
      "slug": "clone-graph",
      "title": "Clone Graph",
      "url": "https://leetcode.com/problems/clone-graph",
      "duration": 25,
      "epi": null,
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      "likes": 0.216,
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      "leetCodeScore": 18.4,
      "priority": 1,
      "id": 133,
      "topic": "graph",
      "routines": ["depth-first-search", "breadth-first-search"]
    },
    {
      "slug": "evaluate-reverse-polish-notation",
      "title": "Evaluate Reverse Polish Notation",
      "url": "https://leetcode.com/problems/evaluate-reverse-polish-notation",
      "duration": 30,
      "epi": 2,
      "difficulty": "Medium",
      "premium": false,
      "frequency": 0.897,
      "likes": 0.315,
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      "leetCodeScore": 25.4,
      "priority": 1,
      "id": 150,
      "topic": "stack",
      "routines": []
    },
    {
      "slug": "course-schedule",
      "title": "Course Schedule",
      "url": "https://leetcode.com/problems/course-schedule",
      "duration": 30,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
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      "likes": 0.803,
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      "leetCodeScore": 68.8,
      "priority": 1,
      "id": 207,
      "topic": "graph",
      "routines": ["topo-sort"]
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    {
      "slug": "implement-trie-prefix-tree",
      "title": "Implement Trie (Prefix Tree)",
      "url": "https://leetcode.com/problems/implement-trie-prefix-tree",
      "duration": 35,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
      "frequency": 0.855,
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      "leetCodeScore": 80.4,
      "priority": 1,
      "id": 208,
      "topic": "trie",
      "routines": []
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    {
      "slug": "coin-change",
      "title": "Coin Change",
      "url": "https://leetcode.com/problems/coin-change",
      "duration": 25,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
      "frequency": 0.94,
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      "leetCodeScore": 80,
      "priority": 1,
      "id": 322,
      "topic": "dynamic-programming",
      "routines": []
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    {
      "slug": "product-of-array-except-self",
      "title": "Product of Array Except Self",
      "url": "https://leetcode.com/problems/product-of-array-except-self",
      "duration": 30,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
      "frequency": 0.97,
      "likes": 0.658,
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      "leetCodeScore": 63.5,
      "priority": 1,
      "id": 238,
      "topic": "array",
      "routines": ["prefix-sum"]
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    {
      "slug": "climbing-stairs",
      "title": "Climbing Stairs",
      "url": "https://leetcode.com/problems/climbing-stairs",
      "duration": 20,
      "epi": null,
      "difficulty": "Easy",
      "premium": false,
      "frequency": 0.942,
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      "leetCodeScore": 81.2,
      "priority": 2,
      "id": 70,
      "topic": "dynamic-programming",
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    {
      "slug": "longest-palindrome",
      "title": "Longest Palindrome",
      "url": "https://leetcode.com/problems/longest-palindrome",
      "duration": 20,
      "epi": 2,
      "difficulty": "Easy",
      "premium": false,
      "frequency": 0.482,
      "likes": 0.67,
      "companies": 0,
      "leetCodeScore": 0,
      "priority": 2,
      "id": 409,
      "topic": "string",
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    {
      "slug": "min-stack",
      "title": "Min Stack",
      "url": "https://leetcode.com/problems/min-stack",
      "duration": 20,
      "epi": 0,
      "difficulty": "Easy",
      "premium": false,
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      "leetCodeScore": 51.6,
      "priority": 2,
      "id": 155,
      "topic": "stack",
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  "Week 4": [
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      "slug": "reverse-linked-list",
      "title": "Reverse Linked List",
      "url": "https://leetcode.com/problems/reverse-linked-list",
      "duration": 20,
      "epi": 1,
      "difficulty": "Easy",
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      "priority": 2,
      "id": 206,
      "topic": "linked-list",
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    {
      "slug": "validate-binary-search-tree",
      "title": "Validate Binary Search Tree",
      "url": "https://leetcode.com/problems/validate-binary-search-tree",
      "duration": 20,
      "epi": null,
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      "premium": false,
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      "priority": 2,
      "id": 98,
      "topic": "binary-search-tree",
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    {
      "slug": "number-of-islands",
      "title": "Number of Islands",
      "url": "https://leetcode.com/problems/number-of-islands",
      "duration": 25,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
      "frequency": 0.998,
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      "priority": 2,
      "id": 200,
      "topic": "graph",
      "routines": ["depth-first-search", " breadth-first-search"]
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    {
      "slug": "rotting-oranges",
      "title": "Rotting Oranges",
      "url": "https://leetcode.com/problems/rotting-oranges",
      "duration": 30,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
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      "priority": 2,
      "id": 1036,
      "topic": "graph",
      "routines": ["breadth-first-search"]
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    {
      "slug": "search-in-rotated-sorted-array",
      "title": "Search in Rotated Sorted Array",
      "url": "https://leetcode.com/problems/search-in-rotated-sorted-array",
      "duration": 30,
      "epi": 2,
      "difficulty": "Medium",
      "premium": false,
      "frequency": 0.98,
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      "priority": 2,
      "id": 33,
      "topic": "binary-search",
      "routines": []
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    {
      "slug": "combination-sum",
      "title": "Combination Sum",
      "url": "https://leetcode.com/problems/combination-sum",
      "duration": 30,
      "epi": null,
      "difficulty": "Medium",
      "premium": false,
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      "leetCodeScore": 81.6,
      "priority": 2,
      "id": 39,
      "topic": "array",
      "routines": ["backtracking"]
    },
    {
      "slug": "permutations",
      "title": "Permutations",
      "url": "https://leetcode.com/problems/permutations",
      "duration": 30,
      "epi": 2,
      "difficulty": "Medium",
      "premium": false,
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      "priority": 2,
      "id": 46,
      "topic": "recursion",
      "routines": ["backtracking"]
    },
    {
      "slug": "merge-intervals",
      "title": "Merge Intervals",
      "url": "https://leetcode.com/problems/merge-intervals",
      "duration": 30,
      "epi": 3,
      "difficulty": "Medium",
      "premium": false,
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      "priority": 2,
      "id": 56,
      "topic": "array",
      "routines": ["interval"]
    },
    {
      "slug": "lowest-common-ancestor-of-a-binary-tree",
      "title": "Lowest Common Ancestor of a Binary Tree",
      "url": "https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree",
      "duration": 25,
      "epi": null,
      "difficulty": "Medium",
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      "priority": 2,
      "id": 236,
      "topic": "binary-tree",
      "routines": []
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  "Week 5": [
    {
      "slug": "time-based-key-value-store",
      "title": "Time Based Key-Value Store",
      "url": "https://leetcode.com/problems/time-based-key-value-store",
      "duration": 35,
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      "id": 1023,
      "topic": "binary-search",
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    {
      "slug": "minimum-window-substring",
      "title": "Minimum Window Substring",
      "url": "https://leetcode.com/problems/minimum-window-substring",
      "duration": 30,
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      "priority": 2,
      "id": 76,
      "topic": "string",
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    {
      "slug": "serialize-and-deserialize-binary-tree",
      "title": "Serialize and Deserialize Binary Tree",
      "url": "https://leetcode.com/problems/serialize-and-deserialize-binary-tree",
      "duration": 40,
      "epi": null,
      "difficulty": "Hard",
      "premium": false,
      "frequency": 0.967,
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      "priority": 2,
      "id": 297,
      "topic": "binary-tree",
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    {
      "slug": "trapping-rain-water",
      "title": "Trapping Rain Water",
      "url": "https://leetcode.com/problems/trapping-rain-water",
      "duration": 35,
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      "priority": 2,
      "id": 42,
      "topic": "stack",
      "routines": ["monotonic-stack"]
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    {
      "slug": "find-median-from-data-stream",
      "title": "Find Median from Data Stream",
      "url": "https://leetcode.com/problems/find-median-from-data-stream",
      "duration": 30,
      "epi": 3,
      "difficulty": "Hard",
      "premium": false,
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      "priority": 2,
      "id": 295,
      "topic": "heap",
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    {
      "slug": "majority-element",
      "title": "Majority Element",
      "url": "https://leetcode.com/problems/majority-element",
      "duration": 20,
      "epi": 2,
      "difficulty": "Easy",
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