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Sum Root to Leaf Numbers leetcode java
题目:Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-to-leaf path 1->2->3 w....
分类:编程语言   时间:2014-08-01 06:57:21    阅读次数:297
ACDream - Divide Sum
先上题目:Divide SumTime Limit:2000/1000MS (Java/Others)Memory Limit:128000/64000KB (Java/Others)SubmitStatusProblem Descriptionlong long ans = 0;for(int i...
分类:其他好文   时间:2014-08-01 04:38:51    阅读次数:281
c++的字符串流
整型数据#include #include #include using namespace std;int main( ){ string s; int x; int sum; while (getline(cin, s)) { stringstream...
分类:编程语言   时间:2014-08-01 04:35:51    阅读次数:377
LeetCode 第一题,Two Sum
题目还原 Two Sum Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up t...
分类:其他好文   时间:2014-08-01 02:25:11    阅读次数:391
偶数求和
Problem Description有一个长度为n(nint main(){ int m,n,i; while(scanf("%d%d",&n,&m)!=EOF) { int sum=0,k=0,j=0; for(i=1;i<=n;i++)//不能是for(i=...
分类:其他好文   时间:2014-07-31 23:31:00    阅读次数:163
Divide Sum 比赛时竟然想不出。。。。。。。
Divide SumTime Limit:2000/1000MS (Java/Others)Memory Limit:128000/64000KB (Java/Others)SubmitStatusProblem Descriptionlong long ans = 0;for(int i = 1;...
分类:其他好文   时间:2014-07-31 23:24:50    阅读次数:236
[leetcode]Path Sum
Path SumGiven a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the give...
分类:其他好文   时间:2014-07-31 23:18:10    阅读次数:227
[leetcode]Path Sum II
Path Sum IIGiven a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum.For example:Given the below binary tr...
分类:其他好文   时间:2014-07-31 23:17:10    阅读次数:175
分组统计查询(章节摘要)
1,在SQL中主要提供了5种分组函数,分别是COUNT(),AVG(),SUM(),MIN(),MAX()函数。 2,使用GROUP BY字句可以对数据进行分组操作,而使用HAVING字句可以对分组之后的数据进行再次过滤。 3,在分组时可以同时制定多个分组字段。 4,分组操作不仅可以用于实体表,也可以针对查询的临时表进行分组。 5,分组函数允许嵌套,但是嵌套...
分类:其他好文   时间:2014-07-31 21:01:57    阅读次数:224
Uva10290 - {Sum+=i++} to Reach N
Problem H {sum+=i++} to Reach N Input: standard input Output:  standard output Memory Limit: 32 MB   All the positive numbers can be expressed as a sum of one, two or more consecutive positive i...
分类:其他好文   时间:2014-07-31 20:58:37    阅读次数:199
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