主题链接:pid=2454">http://acm.hdu.edu.cn/showproblem.php?pid=2454 Problem Description Wang Haiyang is a strong and optimistic Chinese youngster. Although born and brought up in the northern inland city Harbin, he has deep love and yearns for the bound…
Problem Description Wang Haiyang is a strong and optimistic Chinese youngster. Although born and brought up in the northern inland city Harbin, he has deep love and yearns for the boundless oceans. After graduation, he came to a coastal city and got…
Graph Reconstruction Time Limit: 2 Seconds Memory Limit: 65536 KB Special Judge Let there be a simple graph with N vertices but we just know the degree of each vertex. Is it possible to reconstruct the graph only by these information? A sim…
图的度数分布 import collections import matplotlib.pyplot as plt import networkx as nx G = nx.gnp_random_graph(100, 0.02) degree_sequence = sorted([d for n, d in G.degree()], reverse=True) # degree sequence # print "Degree sequence", degree_sequence de…
POJ1180 Batch Scheduling Description There is a sequence of N jobs to be processed on one machine. The jobs are numbered from 1 to N, so that the sequence is 1,2,..., N. The sequence of jobs must be partitioned into one or more batches, where each ba…
题意 Language:Default K-Anonymous Sequence Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 6618 Accepted: 2210 Description The explosively increasing network data in various application domains has raised privacy concerns for the individuals…
You've got a undirected graph G, consisting of n nodes. We will consider the nodes of the graph indexed by integers from 1 to n. We know that each node of graph G is connected by edges with at least k other nodes of this graph. Your task is to find i…
Source: Connected Brain Figure above: Bullmore E, Sporns O. Complex brain networks: graph theoretical analysis of structural and functional systems.[J]. Nature Reviews Neuroscience, 2009, 10(3):186-198. Graph measures A graph G consisting of a set of…
The Bottom of a Graph Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 9139 Accepted: 3794 Description We will use the following (standard) definitions from graph theory. Let V be a nonempty and finite set, its elements being called ver…
题目地址:http://poj.org/problem?id=2553 The Bottom of a Graph Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 7881 Accepted: 3263 Description We will use the following (standard) definitions from graph theory. Let V be a nonempty and finit…
The Bottom of a Graph Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 9641 Accepted: 4008 Description We will use the following (standard) definitions from graph theory. Let V be a nonempty and finite set, its elements being called ver…
The Bottom of a Graph Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 11981 Accepted: 4931 Description We will use the following (standard) definitions from graph theory. Let V be a nonempty and finite set, its elements being called ve…
Graph Reconstruction Time Limit: 2 Seconds Memory Limit: 65536 KB Special Judge Let there be a simple graph with N vertices but we just know the degree of each vertex. Is it possible to reconstruct the graph only by these information? A sim…
Description We will use the following (standard) definitions from graph theory. Let V be a nonempty and finite set, its elements being called vertices (or nodes). Let E be a subset of the Cartesian product V×V, its elements being called edges. Then G…
Graph There are two standard ways to represent a graph G=(V,E)G=(V,E), where VV is a set of vertices and EE is a set of edges; Adjacency list representation and Adjacency matrix representation. An adjacency-list representation consists of an array Ad…
