k-tree algorithmTime-memory tradeoffSummary: We study two open problems proposed by Wagner in his seminal work on the generalized birthday problem. First, with the use of multicollisions, we improve Wagner's $k$-tree algorithm that solves the generalized birthday problem for the cases when $k...
Closest Pair Of Points 最近的一对点 Convex Hull 凸包 Heaps Algorithm 堆算法 Heaps Algorithm Iterative 堆算法迭代 Inversions Kth Order Statistic K 阶统计量 Max Difference Pair 最大差对 Max Subarray Sum 最大子数组和 Mergesort 合并排序 Peak 顶峰 Power 力量 Strassen Matrix Multiplication 施特拉森矩阵...
2algorithm implemented in theMafftaligner with default parameters54. The alignments were subsequently trimmed usingTrimAlwith the ‘-gt 0.95’ parameter, and the trees built usingIQ-TREEwith theGTRmodel of nucleotide substitution and the ‘-fast’ option55,56. Phylogenetic tree visualisations were ...
For all integers k≥3, we give an O(n4)-time algorithm for the problem whose instance is a graph G of girth at least k together with k vertices and whose question is “Does G contains an induced subgraph containing the k vertices and isomorphic to a tree?”. This directly follows for...
cpp_contract : contract the graph by applying contraction hierarchies algorithm. get_aon : given an origin-destination matrix, compute All-or-Nothing assignment. assign_traffic : given an origin-destination matrix, estimate the traffic flows on the network. Routing As the package name suggest, cpp...
This algorithm for cancelling singularities can be extended to Next-to-Next-to-Leading order (NNLO) and beyond; however, since the complexity of the integrands is higher at higher orders, this procedure is reaching a bottleneck because cancellation of singularities must be achieved at integral ...
etcd is written in Go and uses theRaftconsensus algorithm to manage a highly-available replicated log. etcd is usedin production by many companies, and the development team stands behind it in critical deployment scenarios, where etcd is frequently teamed with applications such asKubernetes,locksmith...
gym 100589A queries on the Tree 树状数组 + 分块 题目传送门 题目大意: 给定一颗根节点为1的树,有两种操作,第一种操作是将与根节点距离为L的节点权值全部加上val,第二个操作是查询以x为根节点的子树的权重。 思路: 思考后发现,以dfs序建立树状数组,方便查询,不方便修改,以bfs序建立树状数组,方便修改,不...
static void WalkTree<T>(Tree<T> tree, Action<T> handler) { if (tree == null) return; handler(tree.Data); WalkTree(tree.Left, handler); WalkTree(tree.Right, handler); } We can use Parallel.Invoke to easily parallelize the execution of this tree walk: ...
The events were located using the location programme NonLinLoc42, using the Oct-tree sampling algorithm and the one-dimensional velocity model35. Station elevation is taken into account by NonLinLoc, and a digital elevation model of the Galapagos Islands was used to further constrain earthquake hypoc...