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AtCoDeer is thinking of painting an infinite two-dimensional grid in a checked pattern of side K. Here, a checked pattern of side K is... 阅读全文
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#define MAXN 1000005char s[MAXN];//原字符串char New[2*MAXN];//处理过后得到的新字符串int p[2*MAXN];//记录以每个字符为中心的最长回文长度+1，注意是+1后的结果//这里为什么多出1一定要想明白，很重要... 阅读全文
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Andy the smart computer science student was attending an algorithms class when the professor asked the students a simple question, "Ca... 阅读全文
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The little cat is so famous, that many couples tramp over hill and dale to Byteland, and asked the little cat to give names to their n... 阅读全文
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For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to kno... 阅读全文
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CC always becomes very depressed at the end of this month, he has checked his credit card yesterday, without any surprise, there are o... 阅读全文
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Problem DescriptionRecall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-1 + fn-2 (n >= 3)Given two numbers a and b... 阅读全文
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给出N个整数，你来判断一下是否能够选出4个数，他们的和为0，可以则输出"Yes"，否则输出"No"。 Input第1行，1个数N，N为数组的长度(4 #include #include #include using namespace std;int board[1... 阅读全文
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#include #include #include #include using namespace std;#define MAXN 100int board[MAXN];int result[MAXN];void Merge(int left,int mid,i... 阅读全文
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In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swap... 阅读全文