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摘要： Dima worked all day and wrote down on a long paper strip his favorite number nnconsisting of ll digits. Unfortunately, the strip turned out to be so l 阅读全文

摘要： Let's call (yet again) a string good if its length is even, and every character in odd position of this string is different from the next character (t 阅读全文

摘要： You are given two arrays aa and bb, both of length nn. All elements of both arrays are from 00 to n−1n−1. You can reorder elements of the array bb (if 阅读全文

摘要： You are given a set of points x1x1, x2x2, ..., xnxn on the number line. Two points ii and jj can be matched with each other if the following condition 阅读全文

摘要： output standard output output standard output output You are given integer nn. You have to arrange numbers from 11 to 2n2n, using each of them exactly 阅读全文

摘要： You have a given picture with size w×hw×h. Determine if the given picture has a single "+" shape or not. A "+" shape is described below: A "+" shape h 阅读全文

摘要： You may have already known that a standard ICPC team consists of exactly three members. The perfect team however has more restrictions. A student can 阅读全文

摘要： C国的死对头A国这段时间正在进行军事演习，所以C国间谍头子Derek和他手下Tidy又开始忙乎了。A国在海岸线沿直线布置了N个工兵营地,Derek和Tidy的任务就是要监视这些工兵营地的活动情况。由于采取了某种先进的监测手段，所以每个工兵营地的人数C国都掌握的一清二楚,每个工兵营地的人数都有可能发生变动，可能增加或减少若干人手,但这些都逃不过C国的监视。 中央情报局要研究敌人究竟演习什么战术,... 阅读全文

摘要： The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of 阅读全文

摘要： #include <iostream> #include <cmath> #include <cstring> using namespace std; int main() { char str1[100010],str2[100010]; cin>>str1>>str2; int a1[100010],a2[100010],a[100010],n1,n2,i,k=0; n1=strlen(st 阅读全文