A_bigUncle的博客

LeetCode 785. Is Graph Bipartite? 问题描述： Given an undirected graph, return true if and only if it is bipartite. Recall that a graph is bipartite if we can split it’s set of nodes into two independent s...

LeetCode 743. Network Delay Time 问题描述： There are N network nodes, labelled 1 to N. Given times, a list of travel times as directed edges times[i] = (u, v, w), where u is the source node, v is the targ...

LeetCode 854. K-Similar Strings 问题描述： Strings A and B are K-similar (for some non-negative integer K) if we can swap the positions of two letters in A exactly K times so that the resulting string equa...