2015 多校联赛 ——HDU5299（树删边）

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2015 多校联赛 ——HDU5299（树删边）

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 593 Accepted Submission(s): 164 Problem Description There are n circles on a infinitely large table.With every two circle, either one contains…

2015 多校联赛 ——HDU5316（线段树）

Fantasy magicians usually gain their ability through one of three usual methods: possessing it as an innate talent, gaining it through study and practice, or receiving it from another being, often a god, spirit, or demon of some sort. Some wizards ar…

2015 多校联赛 ——HDU5372（树状数组）

Sample Input 3 0 0 0 3 0 1 5 0 1 0 0 1 1 0 1 0 0 Sample Output Case #1: 0 0 0 Case #2: 0 1 0 2 有0,1两个操作,0 x代表添加从x 到 x + i(带表第i次添加)的线段,每次添加时问被其覆盖的线段有多少. 1 x代表删除第i次添加的. 思路:每一次添加后,求出小于x的左节点个数x1,小于等于y的右节点个数x2. x2- x1即可改变单个节点,所以树状数组更加合适 #include<iost…

2015 多校联赛 ——HDU5294（最短路，最小切割）

Tricks Device Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1977 Accepted Submission(s): 509 Problem Description Innocent Wu follows Dumb Zhang into a ancient tomb. Innocent Wu’s at the en…

2015 多校联赛 ——HDU5325（DFS）

Crazy Bobo Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/65536 K (Java/Others) Total Submission(s): 1215 Accepted Submission(s): 366 Problem Description Bobo has a tree,whose vertices are conveniently labeled by 1,2,...,n.Each nod…

2015 多校联赛 ——HDU5303（贪心）

Delicious Apples Time Limit: 5000/3000 MS (Java/Others) Memory Limit: 524288/524288 K (Java/Others) Total Submission(s): 1371 Accepted Submission(s): 448 Problem Description There are n apple trees planted along a cyclic road, which is L metres…

2015 多校联赛 ——HDU5348（搜索）

Problem Description As we all kown, MZL hates the endless loop deeply, and he commands you to solve this problem to end the loop. You are given an undirected graph with n vertexs and m edges. Please direct all the edges so that for every vertex in th…