Shoemaker's Problem Shoemaker has N jobs (orders from customers) which he must make. Shoemaker can work on only one job in each day. For each ith job, it is known the integer Ti (1<=Ti<=1000), the time in days it takes the shoemaker to finish the jo…
UVa 101 The Blocks Problem 一道纯模拟题 The Problem The problem is to parse a series of commands that instruct a robot arm in how to manipulate blocks that lie on a flat table. Initially there are nblocks on the table (numbered from 0 to n-1) with block bi…
UVA - 524 Prime Ring Problem Time Limit:3000MS Memory Limit:0KB 64bit IO Format:%lld & %llu Description A ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately, and the sum of number…
题目链接:uva 10837 - A Research Problem 题目大意:给定一个phin.要求一个最小的n.欧拉函数n等于phin 解题思路:欧拉函数性质有,p为素数的话有phip=p−1;假设p和q互质的话有phip∗q=phip∗phiq 然后依据这种性质,n=pk11(p1−1)∗pk22(p2−1)∗⋯∗pkii(pi−1),将全部的pi处理出来.暴力搜索维护最小值,尽管看上去复杂度很高,可是由于对于垒乘来说,增长很快,所以搜索范围大大被缩小了. #include <cstdi…
Uva 101 the block problem 题目大意: 输入n,得到编号为0~n-1的木块,分别摆放在顺序排列编号为0~n-1的位置.现对这些木块进行操作,操作分为四种. 1.move a onto b:把木块a.b上的木块放回各自的原位,再把a放到b上: 2.move a over b:把a上的木块放回各自的原位,再把a发到含b的堆上: 3.pile a onto b:把b上的木块放回各自的原位,再把a连同a上的木块移到b上: 4.pile a over b:把a连同a上木块移到含b的…
题目来源:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=37 The Blocks Problem Background Many areas of Computer Science use simple, abstract domains for both analytical and empiric…
A Puzzling Problem The goal of this problem is to write a program which will take from 1 to 5 puzzle pieces such as those shown below and arrange them, if possible, to form a square. An example set of pieces is shown here. The pieces cannot be rota…
链接: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=4109 题意: 输入正整数n和k(1≤n,k≤1e9),计算sum(k mod i)(1≤i≤n). 分析: 被除数固定,除数逐次加1,直观上余数也应该有规律.假设k/i的整数部分等于d,则k mod i = k-i*d.因为k/(i+1)和k/i差别不大,如果k/(i+1)的整数部…
链接:http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=967 描述:要做n双鞋子,第 i 双鞋子要做Ti天,每天消耗Si的钱(当前正在做第 i 双鞋子时不耗钱).求在最少消耗钱的情况下做鞋子的顺序. 思路:贪心 明显是一个排序的模型,然后我们就思考顺序怎么确定.考虑当前两双鞋子a和b,它们的顺序对它们前后的鞋子都没有影响,它们所创造的影响仅仅…
Prime Ring Problem A ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately, and the sum of numbers in two adjacent circles should be a prime. Note: the number of first circle should always…
11490 - Just Another Problem option=com_onlinejudge&Itemid=8&page=show_problem&category=474&problem=2485&mosmsg=Submission+received+with+ID+13809788" target="_blank" style="">题目链接 题意:有S个士兵.排成一个矩阵,矩阵中能够有两个洞,要…
题意 把1到n这n个数以1为首位围成一圈 输出全部满足随意相邻两数之和均为素数的全部排列 直接枚举排列看是否符合肯定会超时的 n最大为16 利用回溯法 边生成边推断 就要快非常多了 #include<cstdio> using namespace std; const int N = 50; int p[N], vis[N], a[N], n; int isPrime(int k) { for(int i = 2; i * i <= k; ++i) if(k % i == 0)…