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HDU2852 KiKi's K Number Problem Description For the k th number, we all should be very familiar with it. Of course,to kiki it is also simple. Now Kiki 阅读全文
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HihoCoder1336 Matrix Sum 描述 You are given an N × N matrix. At the beginning every element is 0. Write a program supporting 2 operations: \1. Add x y v 阅读全文
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POJ2299 Ultra QuickSort Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n disti 阅读全文
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AtCoder Beginner Contest 106 D 题目 Problem Statement In Takahashi Kingdom, there is a east west railroad and N cities along it, numbered 1, 2, 3, ..., 阅读全文
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AtCoder Beginner Contest 105 D Candy Distribution Problem Statement There are N boxes arranged in a row from left to right. The i th box from the left 阅读全文
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AtCoder Beginner Contest 105 C Base 2 Number Problem Statement Given an integer N , find the base −2 representation of N . Here, S is the base −2 repr 阅读全文
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UVaLive3942 Remember the Word Neal is very curious about combinatorial problems, and now here comes a problem about words. Knowing that Ray has a phot 阅读全文
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HDU5763 Another Meaning As is known to all, in many cases, a word has two meanings. Such as “hehe”, which not only means “hehe”, but also means “excus 阅读全文