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This study plan is for those who want to prepare for technical interviews but are uncertain which problems they should focus on. The problems have been carefully curated so that levels 1 and 2 will guide beginner and intermediate users through problems that cover the data structures and algorithms necessary to succeed in interviews with most mid…

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dhrupad17/LeetCode-75_LEVEL1

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Questions

DAYS LEETCODE PROBLEM NO NAME DIFFICULTY SOLUTIONS
DAY1 1480 Running Sum of 1d Array Easy 👉Click Here
724 Find Pivot Index Easy 👉Click Here
DAY2 205 Isomorphic Strings Easy 👉Click Here
392 Is Subsequence Easy 👉Click Here
DAY3 21 Merge Two Sorted Lists Easy 👉Click Here
206 Reverse Linked List Easy 👉Click Here
DAY4 876 Middle of the Linked List Easy 👉Click Here
142 Linked List Cycle II Medium 👉Click Here
DAY5 121 Best Time to Buy and Sell Stock Easy 👉Click Here
409 Longest Palindrome Easy 👉Click Here
DAY6 589 N-ary Tree Preorder Traversal Easy 👉Click Here
102 Binary Tree Level Order Traversal Medium 👉Click Here
DAY7 704 Binary Search Easy 👉Click Here
278 First Bad Version Easy 👉Click Here
DAY8 98 Validate Binary Search Tree Medium 👉Click Here
235 Lowest Common Ancestor of a Binary Search Tree Easy 👉Click Here
DAY9 733 Flood Fill Easy 👉Click Here
200 Number of Islands Medium 👉Click Here
DAY10 509 Fibonacci Number Easy 👉Click Here
70 Climbing Stairs Easy 👉Click Here
DAY11 746 Min Cost Climbing Stairs Easy 👉Click Here
62 Unique Paths Medium 👉Click Here
DAY12 438 Find All Anagrams in a String Medium 👉Click Here
424 Longest Repeating Character Replacement Medium 👉Click Here
DAY13 1 Two Sum Easy 👉Click Here
299 Bulls and Cows Medium 👉Click Here
DAY14 844 Backspace String Compare Easy 👉Click Here
394 Decode String Medium 👉Click Here
DAY15 1046 Last Stone Weight Easy 👉Click Here
692 Top K Frequent Words Medium 👉Click Here

🛠 Skills

Data Structures,Algorithms,Prefix Sum,String,Linked List,Greedy,Tree,Binary Search,Binary Search Tree,Graph/BFS/DFS,Dynamic Programming,Sliding Window/Two Pointer,Hashmap,Stack,Heap,java

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LeetCode Java GitHub

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This study plan is for those who want to prepare for technical interviews but are uncertain which problems they should focus on. The problems have been carefully curated so that levels 1 and 2 will guide beginner and intermediate users through problems that cover the data structures and algorithms necessary to succeed in interviews with most mid…

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