首先,最终要求的肯定就是dp[0][0][0]肯定很容易想了;初始值就是dp[x][y][z]=1,x,y,z就是给的情况 其次如果将i,j,p逆着递推,这样就正好得到最终结果,dp[i][j][p]可以有很多中转移情况,应为组成新的一组需要k个人,而这k个人是从i,j,p那一快转移过来都有可能,所以实现预处理好所以情况,到时...
UVA 10518 How Many Calls? UVA_10518 这个题目想到f(n)=f(n-1)+f(n-2)+1还是比较容易的,但如果能想到是f(n)=2*F(n)-1就不太容易了,在看了UVA的论坛之后我才知道原来可以表示成这个样子,其中F(n)为斐波那契数,有了这个式子是第一步,后面的计算过程倒还不算麻烦。 后来在群里讨论的时候,突然发现...
这个题目想到f(n)=f(n-1)+f(n-2)+1还是比较容易的,但如果能想到是f(n)=2*F(n)-1就不太容易了,在看了UVA的论坛之后我才知道原来可以表示成这个样子,其中F(n)为斐波那契数,有了这个式子是第一步,后面的计算过程倒还不算麻烦。 后来在群里讨论的时候,突然发现S(n)=F(n)+F(n+1)-1,S(n)为...
百度试题 结果1 题目(C)5. How manydoyαuvA. glass of apple juice B. glass of apple juices C. glasses of apple juice 相关知识点: 试题来源: 解析 答案见上
and even a new inn. TheUVA Inn at Darden and Conference Center for Lifelong Learningcomplex is slated to be completed in spring 2023. Possibly most significant to the student experience, Beardsley has enabled the school—located in a bucolic mountainous region of Virginia on UVA’s historical gr...
10183 - How Many Fibs? Time limit: 3.000 seconds http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=115&page=show_problem&problem=1124 Recall the definition of the Fibonacci numbers: f1:= 1 f2:= 2 fn:=fn-1+fn-2(n>=3) ...
链接:https://vjudge.net/problem/UVA-11038 思路:虽然最后代码非常短,但是我觉得里面蕴含的巧妙的思想远远不止这些,首先算0个数肯定不能硬来,也不太好分区间算容易产生重叠,正解的方法是枚举原数的各个位置的数字,如果不为0,则该位前面的数字pow (10,后面数字个数)就是当前位为0的方案总数(例如12139,枚举...
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Also, the only people at his bedside are Robin, Lily, Marshall, and Ted, so unless Barney married Robin, his potential wife is not at his bedside. However, he may have told his wife of the prank he had planned, and wasn't needed by his bed side. Some others like to think that ...
uva 10061 - How many zero's and how many digits ? 题目很清晰,想法也很简单,可是我做了两天。。。 其实考的就是因数分解跟斯特林公式。。 - -。。不过不能直接用斯特林公式,要逐个逐个算。。我就是因为这样,WA了两天。。。悲剧啊