摘要： 4 Values whose Sum is 0Time Limit:15000MSMemory Limit:228000KTotal Submissions:13069Accepted:3669Case Time Limit:5000MSDescriptionThe SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how many quadruplet (a, b, c, d ) ∈ A x B x C x D are such that a + b 阅读全文

摘要： 方程的解数Time Limit:15000MSMemory Limit:128000KTotal Submissions:6188Accepted:2127Case Time Limit:5000MSDescription已知一个n元高次方程：其中：x1, x2,...,xn是未知数，k1,k2,...,kn是系数，p1,p2,...pn是指数。且方程中的所有数均为整数。假设未知数1 #include #define Max 4000037 int hash[Max],num[Max]; //hash判断和的位置，num是和为s的个数 bool used[Max]; ... 阅读全文

摘要： The order of a TreeTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 845Accepted Submission(s): 461Problem DescriptionAs we know,the shape of a binary search tree is greatly related to the order of keys we insert. To be precisely:1.insert a key k to 阅读全文

摘要： 二叉搜索树Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2148Accepted Submission(s): 957Problem Description判断两序列是否为同一二叉搜索树序列Input开始一个数n，(1#include #include #include using namespace std;typedef struct node{ char data; node *lchild; node *rchild... 阅读全文