随笔分类 -  OJ

摘要：题目如下图： 递归版 迭代版 阅读全文

摘要：KMP算法的实现：#include #include #include int strStr(char* haystack, char* needle) { if (haystack == NULL || needle == NULL) return -1; if (nee... 阅读全文

摘要：Factors and FactorialsThe factorial of a numberN(writtenN!) is defined as the product of all the integers from 1 toN. It is often defined recursively ... 阅读全文

摘要：Word AmalgamationIn millions of newspapers across the United States there is a word game calledJumble. The object of this game is to solve a riddle, b... 阅读全文

摘要：Primary ArithmeticChildren are taught to add multi-digit numbers from right-to-left one digit at a time. Many find the "carry" operation - in which a ... 阅读全文

摘要：Periodic StringsA character string is said to have periodkif it can be formed by concatenating one or more repetitions of another string of lengthk. F... 阅读全文