C. Report 题目连接： http://www.codeforces.com/contest/631/problem/C Description Each month Blake gets the report c…

A problem of sorting Time Limit: 1 Sec   Memory Limit: 256 MB 题目连接 http://bestcoder.hdu.edu.cn/contests/c…

Uncle Tom’s Inherited Land* Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: …

A very hard Aoshu problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32…

Is It A Tree? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/…

Anastasia and pebbles 题意：你有两种框，每个框可以最多装k重量的物品，但是你每个框不能装不一样的物品。现在地面上有n个物品，问你最少多少次，可以把这n个物品全部装回去。 题解：其实就是问你得用多少次…

E. Zbazi in Zeydabad 题目连接： http://www.codeforces.com/contest/628/problem/D Description A tourist wants to visi…

Catenyms Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8756   Accepted…

A very hard mathematic problem Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.…

Collecting Bugs Time Limit: 10000MS   Memory Limit: 64000K Total Submissions: 1244   Accepted: 523 C…

题目链接：BZOJ – 2212   题目分析 子树 x 内的逆序对个数为 ：x 左子树内的逆序对个数 + x 右子树内的逆序对个数 + 跨越 x 左子树与右子树的逆序对。 左右子树内部的逆序对与是…

Strategic Game Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Ja…