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Given an undirected tree consisting of n vertices numbered from 0 to n-1, which has some apples in their vertices. You spend 1 second to walk over one 阅读全文
posted @ 2020-05-10 18:05
Veritas_des_Liberty
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Eva is trying to make her own color stripe out of a given one. She would like to keep only her favorite colors in her favorite order by cutting off th 阅读全文
posted @ 2020-05-09 15:43
Veritas_des_Liberty
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The task is really simple: given N exits on a highway which forms a simple cycle, you are supposed to tell the shortest distance between any pair of e 阅读全文
posted @ 2020-05-09 14:33
Veritas_des_Liberty
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Zhejiang University has 40,000 students and provides 2,500 courses. Now given the registered course list of each student, you are supposed to output t 阅读全文
posted @ 2020-05-09 13:37
Veritas_des_Liberty
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Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou 阅读全文
posted @ 2020-05-09 13:01
Veritas_des_Liberty
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The task is simple: given any positive integer N, you are supposed to count the total number of 1's in the decimal form of the integers from 1 to N. F 阅读全文
posted @ 2020-05-08 22:20
Veritas_des_Liberty
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Given two strings S1 and S2, S=S1−S2 is defined to be the remaining string after taking all the characters in S2 from S1. Your task 阅读全文
posted @ 2020-05-08 17:33
Veritas_des_Liberty
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Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a given s 阅读全文
posted @ 2020-05-08 17:23
Veritas_des_Liberty
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A linked list consists of a series of structures, which are not necessarily adjacent in memory. We assume that each structure contains an integer key 阅读全文
posted @ 2020-05-08 13:40
Veritas_des_Liberty
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Given a non-empty tree with root R, and with weight Wi assigned to each tree node Ti. The weight of a path from R to L is defined to be the sum 阅读全文
posted @ 2020-05-07 22:06
Veritas_des_Liberty
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