simon1024

摘要： 题目：列出九宫格键盘输入的所有字母组合思路：将字母的组合看成k进制的数，列出字母组合的过程即为对数进行加法运算。#include #include #include char* letter[] = {"abc","def","ghi","jkl","mno","pqrs","tuv","wxyz"};void listAll(char* input){ int len = strlen(input); int total = 1; i 阅读全文

摘要： bool BinTree::is_avl(BintreeNode *r, int& height){ if (r == NULL) { height = 0; return true; } int hl,hr; bool is_avl_left = is_avl(r->get_left(), hl); if ( !is_avl_left ) return false; bool is_avl_right = is_avl(r->get_right(), hr); if ( !is_avl_right ) return false; int max = hl>hr ? 阅读全文