Difference Is Beautiful Time Limit:5000MS Memory Limit:65536KB 64bit IO Format:%lld & %llu Submit Status Practice POJ 3419 Description Mr. Flower's business is growing much faster than originally planned. He has now become the CEO of a world-…
这个东西先放在这吧.做过的以后会用#号标示出来 1.burnside定理,polya计数法 这个大家可以看brudildi的<组合数学>,那本书的这一章写的很详细也很容易理解.最好能完全看懂了,理解了再去做题,不要只记个公式. *简单题:(直接用套公式就可以了) pku2409 Let it Bead #http://acm.pku.edu.cn/JudgeOnline/problem?id=2409 pku2154 Color #http://acm.p…
Difference between Triplets Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 2476 Accepted: 800 Description For every pair of triplets, Ta = (Ia, Ja, Ka) and Tb = (Ib, Jb, Kb), we define the difference value between Ta and Tb as follows…
Smallest Difference(最小差) Time Limit: 1000MS Memory Limit: 65536K Description - 题目描述 Given a number of distinct decimal digits, you can form one integer by choosing a non-empty subset of these digits and writing them in some order. The remaining d…