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Unlike in nowadays, the way that boys and girls expressing their feelings of love was quite subtle in the early years. When a boy A had a crush on a g 阅读全文
posted @ 2020-04-15 22:58
Veritas_des_Liberty
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Look-and-say sequence is a sequence of integers as the following: D, D1, D111, D113, D11231, D112213111, ... where D is in [0, 9] except 1. The (n+1)s 阅读全文
posted @ 2020-04-14 23:21
Veritas_des_Liberty
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After each PAT, the PAT Center will announce the ranking of institutions based on their students' performances. Now you are asked to generate the rank 阅读全文
posted @ 2020-04-14 22:29
Veritas_des_Liberty
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A clique is a subset of vertices of an undirected graph such that every two distinct vertices in the clique are adjacent. A maximal clique is a clique 阅读全文
posted @ 2020-04-14 21:21
Veritas_des_Liberty
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The lowest common ancestor (LCA) of two nodes U and V in a tree is the deepest node that has both U and V as descendants. A binary search tree (BST) i 阅读全文
posted @ 2020-04-14 18:13
Veritas_des_Liberty
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Given N integers, you are supposed to find the smallest positive integer that is NOT in the given list. Input Specification: Each input file contains 阅读全文
posted @ 2020-04-14 16:53
Veritas_des_Liberty
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The task of this problem is simple: insert a sequence of distinct positive integers into a hash table first. Then try to find another sequence of inte 阅读全文
posted @ 2020-04-13 21:32
Veritas_des_Liberty
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This is a problem given in the Graduate Entrance Exam in 2018: Which of the following is NOT a topological order obtained from the given directed grap 阅读全文
posted @ 2020-04-13 17:48
Veritas_des_Liberty
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In computer science, a heap is a specialized tree-based data structure that satisfies the heap property: if P is a parent node of C, then the key (the 阅读全文
posted @ 2020-04-12 23:19
Veritas_des_Liberty
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1408. String Matching in an Array Given an array of string words. Return all strings in words which is substring of another word in any order. String 阅读全文
posted @ 2020-04-12 17:45
Veritas_des_Liberty
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