CodeForces - 1213G Path Queries(排序后就可以利用上一次的结果,每次再加上并查集的处理)
题目链接:https://vjudge.net/contest/326208#problem/HIn
POJ - 3468 A Simple Problem with Integers(树状数组维护区间和,区间更新)
题目链接:https://vjudge.net/contest/347398#problem/A翻译
CodeForces - 1006F Xor-Paths(双向搜索,到分界位置组合一起和最终结果比较+map容器)
题目链接:https://vjudge.net/contest/348012#problem/D翻译
POJ - 2533 Longest Ordered Subsequence(最长上升子序列问题+二分优化)
题目链接:https://vjudge.net/contest/347032#problem/GLo
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周排行