
图论_最小生成树
Chook_lxk
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HDU - 1879 继续畅通工程(最小生成树kruskal)
点击打开题目链接继续畅通工程Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 24011Accepted Submission(s): 10234Problem Description省政府原创 2017-04-15 09:17:16 · 552 阅读 · 0 评论 -
HDU - 1875 畅通工程再续(最短生成树kruskal)
点击打开题目链接畅通工程再续Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 27392Accepted Submission(s): 8884Problem Description相信大家原创 2017-04-14 23:29:58 · 1026 阅读 · 0 评论 -
HDU - 1863 畅通工程(最小生成树kruskal)
点击打开题目链接畅通工程Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 28525Accepted Submission(s): 12541Problem Description省政府“畅原创 2017-04-14 20:39:56 · 811 阅读 · 0 评论 -
HDU - 1233 还是畅通工程(最小生成树kruskal算法)
点击打开题目链接还是畅通工程Time Limit: 4000/2000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 44690Accepted Submission(s): 20373Problem Description某省调原创 2017-04-14 19:49:27 · 1119 阅读 · 0 评论 -
HDU - 1102 Constructing Roads(最小生成树kruskal)
点击打开题目链接Constructing RoadsTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 22472Accepted Submission(s): 8642Problem Descrip原创 2017-04-13 22:13:38 · 459 阅读 · 0 评论 -
UVA - 1395 Slim Span(最小生成树)
点击打开题目链接题目大意:给出一个n节点的图,求出最大边减最小边尽量小的生成树。思路:kruskal + 暴力枚举每一个l,判断生成树的苗条度是否最小。附上AC代码:#include#include#include#includeusing namespace std;const int maxn = 10000 + 5;int par[maxn];原创 2017-05-17 22:27:40 · 1407 阅读 · 0 评论 -
UVA - 1151 Buy or Build(最小生成树+二进制枚举子集)
点击打开题目链接题目大意:给出n个点的坐标,连边的费用为两端点的欧几里得距离。给出q种套餐,购买某种套餐花费Ci,该套餐中所有点将连通,求最小花费。思路:读完题后知道是kruskal最短路问题,但如果枚举所有套餐,规模太大肯定超时。所以需要优化:先kruskal求一次得到n-1条边,然后从这n-1条边中用二进制枚举子集的方法枚举套餐。附上AC代码:#includ原创 2017-05-18 15:16:47 · 683 阅读 · 0 评论 -
AtCoder Regular Contest 076 D Built?(kruskal)
点击打开题目链接D - Built?Time limit: 2sec /Memory limit: 256MBScore :500pointsProblem StatementThere areNtowns on a plane. Thei-th town is located at the coordinates(xi,y原创 2017-06-25 11:30:06 · 724 阅读 · 0 评论 -
HDU - 4081 Qin Shi Huang‘s National Road System(次小生成树)
点击打开题目链接Qin Shi Huang's National Road SystemTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8430Accepted Submission(s): 2987原创 2017-07-28 12:26:42 · 845 阅读 · 0 评论