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leetcode Merge Intervals
题目:给定一连串的区间,要求输出不重叠的区间。Given a collection of intervals, merge all overlapping intervals.For example,Given[1,3],[2,6],[8,10],[15,18],return[1,6],[8,10]...
分类:其他好文   时间:2014-11-04 01:36:13    阅读次数:175
HDU5086——Revenge of Segment Tree(BestCoder Round #16)
Revenge of Segment TreeProblem DescriptionIn computer science, a segment tree is a tree data structure for storing intervals, or segments. It allows q...
分类:其他好文   时间:2014-11-02 12:20:55    阅读次数:191
[ACM] HDU 5086 Revenge of Segment Tree(所有连续区间的和)
Revenge of Segment Tree Problem Description In computer science, a segment tree is a tree data structure for storing intervals, or segments. It allows querying which of the stored segments c...
分类:其他好文   时间:2014-11-02 10:50:48    阅读次数:232
Timer理解
Timer的官方描述是:A facility for threads to schedule tasks for future execution in a background thread. Tasks may be scheduled for one-time execution, or for repeated execution at regular intervals. 意思就是...
分类:其他好文   时间:2014-11-01 17:52:47    阅读次数:169
POJ 1375 Intervals 解析几何 求圆的切线
题目大意:给出一个点,再给出都处于这个点之下的一些圆,求这个点光源照到这些圆上之后所得到的阴影的并集。 思路:求出每一个圆关于那个点的切线,每一个圆可以处理出来两个切线,这两个切线在x轴上交点的中间部分就是要求的阴影。最后将所有的阴影部分取并输出。 关于求切线,我是利用方向向量解方程做的。应该有更简洁的方法吧。。 CODE: #include #include #i...
分类:其他好文   时间:2014-10-27 17:47:35    阅读次数:133
LeetCode: Merge Intervals 解题报告
Merge IntervalsGiven a collection of intervals, merge all overlapping intervals.For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,1...
分类:其他好文   时间:2014-10-26 21:04:46    阅读次数:199
leetcode - Merge Intervals
Given a collection of intervals, merge all overlapping intervals. For example, Given [1,3],[2,6],[8,10],[15,18], return [1,6],[8,10],[15,18]. bool operator < (const Interval &a, const Interval...
分类:其他好文   时间:2014-10-26 15:41:16    阅读次数:157
leetcode - Insert Interval
Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals were initially sorted according to their start times. E...
分类:其他好文   时间:2014-10-26 15:38:41    阅读次数:196
[LeetCode]Merge Intervals
Given a collection of intervals, merge all overlapping intervals. For example, Given [1,3],[2,6],[8,10],[15,18], return [1,6],[8,10],[15,18]. 参照insert intervals /** * Definition for an interva...
分类:其他好文   时间:2014-10-14 22:48:09    阅读次数:125
POJ 3225 Help with Intervals(线段树)
POJ 3225 Help with Intervals 题目链接 集合数字有的为1,没有为0,那么几种操作对应就是置为0或置为1或者翻转,这个随便推推就可以了,然后开闭区间的处理方式就是把区间扩大成两倍,偶数存点,奇数存线段即可 代码: #include #include #define lson(x) ((x<<1)+1) #define rson(x) ((x<...
分类:其他好文   时间:2014-10-11 15:11:15    阅读次数:150
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