Yukari's Birthday HDU4430 就是枚举+二分: 注意处理怎样判断溢出...(因为题目只要10^12) 先前还以为要用到快速幂和等比数列的快速求和(但肯定会超__int64) 而且这样判断会超时的... 还有题目中的And it's optional to place at most one candle at the center of the cake. (中间的蜡烛可有可无) 还有观察数据就知道:因为n最大10^12,r最多枚举到40,然后二分k的结果,看是否有符合条…
Yukari's Birthday Time Limit: 2 Seconds Memory Limit: 32768 KB Today is Yukari's n-th birthday. Ran and Chen hold a celebration party for her. Now comes the most important part, birthday cake! But it's a big challenge for them to place n candle…
注意会超long long 开i次根号方法,te=(ll)pow(n,1.0/i); Yukari's Birthday Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3262 Accepted Submission(s): 695 Problem Description Today is Yukari's n-th birt…
1514: Packs Time Limit: 10 Sec Memory Limit: 128 MBSubmit: 61 Solved: 4[Submit][Status][Web Board] Description Give you n packs, each of it has a value v and a weight w. Now you should find some packs, and the total of these value is max, total of…
The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how many quadruplet (a, b, c, d ) ∈ A x B x C x D are such that a + b + c + d = 0 . In the following, we assume that all lists have the same size n .…
Yukari's Birthday Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2549 Accepted Submission(s): 522 Problem Description Today is Yukari's n-th birthday. Ran and Chen hold a celebration party…
Yukari's Birthday Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4934 Accepted Submission(s): 1163 Problem Description Today is Yukari's n-th birthday. Ran and Chen hold a celebration party…
C. Anton and Making Potions 题目连接: http://codeforces.com/contest/734/problem/C Description Anton is playing a very interesting computer game, but now he is stuck at one of the levels. To pass to the next level he has to prepare n potions. Anton has a…
