pursuit的专栏

题意：给你一些英语单词和这些单词翻译成其他语言时的单词，在后面给你一些其他语言的单词，看能否用字典来翻译。 思路：hash表，字典树，排序。。 我的第一个蹩脚的hash~~~~ AC代码： #include #include #include #include #define N 100005 using namespace std; int head[N]; typedef stru

思路：主要将等式化为左右两部分，用一个hash数组先把左边的值存起来，，然后在计算右面的值时只需要寻址就行了，，，， Equations Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2456 Accepted Submission

判断两个雪花是否相同。。。。。简易hash。。。。 #include #include #define N 100005 typedef struct str { int key[6]; int next; }Node; Node node[N]; int num; int head[N]; bool add(int *s) { int i,j,k,h,m,sum=0; for(i=

运用hash表求方程的根的个数~~同上一题。。。。 #include #include #define N 25000007 using namespace std; char Hash[N]; int main() { int a,b,c,d,e; scanf("%d%d%d%d%d",&a,&b,&c,&d,&e); memset(Hash,0,sizeof(Hash));

Problem Description Hassan is in trouble. His mathematics teacher has given him a very difficult problem called 5-sum. Please help him. The 5-sum problem is defined as follows: Given 5 sets S_1,...,