djvu LeetCode 75 Solutions - Python: 6x9 Edition (English Edition)
por Lokesh Bhoyar
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Descrição do livro
Every problem in the LeetCode 75 study plan, solved in Python, with the words to go with it. You pass a coding round by writing the right function. You get the offer by explaining it. This book works through all 75 problems in the LeetCode 75 study plan and gives each one three pages: the working Python, the reasoning that produced it, and what to say while an interviewer is watching. Every problem follows the same six-part layout. Read the problem. A QR code takes you straight to the problem on LeetCode, so you are always working from the real statement. Clarify first. The questions worth asking before you write a line. The idea. Why this approach and not the one that comes to mind first. The answer. Complete, runnable Python, set in a monospaced face and formatted for the page. How it runs. A walk through the code on a small input, so you see the state change rather than trusting it. In the interview. What is being tested, a line you can say out loud, the follow-up question you should expect, and the edge cases to name before you are asked. The 75 problems sit in the 22 patterns they teach: arrays and strings, two pointers, sliding window, prefix sum, hash map and set, stack, queue, linked list, binary tree depth first and breadth first search, binary search tree, graph depth first and breadth first search, heap and priority queue, binary search, backtracking, one dimensional and multidimensional dynamic programming, bit manipulation, trie, intervals, and monotonic stack. Learn a pattern once and it carries every problem in its group. Inside Who it is for Engineers preparing for interviews where data structures and algorithms still decide the round. Students working through their first structured plan who want more than a passing submission. Anyone who has solved these before but goes quiet when asked to explain one.
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