Numbers Time Limit: 2 Seconds Memory Limit: 65536 KB DreamGrid has a nonnegative integer n . He would like to divide n into m nonnegative integers a1,a2,...am and minimizes their bitwise or (i.e.a1+a2+...+am=n and a1 OR a2 OR a3...OR am should…
贪心.能凑成一组就算一组 Unrhymable Rhymes Time Limit: 10 Seconds Memory Limit: 32768 KB Special Judge An amateur poet Willy is going to write his first abstract poem. Since abstract art does not give much care to the meaning of the poem, Willy is plan…
1023 Have Fun with Numbers (20)(20 分) Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which happens to be another 9-digit number consisting exac…
Digging Time Limit: 2 Seconds Memory Limit: 65536 KB When it comes to the Maya Civilization, we can quickly remind of a term called the end of the world. It's not difficult to understand why we choose to believe the prophecy (or we just assume i…
Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which happens to be another 9-digit number consisting exactly the numbers from 1 to 9, only in a…
Known Notation Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3829 Description Do you know reverse Polish notation (RPN)? It is a known notation in the area of mathematics and computer science…
题目链接: PKU:http://poj.org/problem?id=1862 ZJU:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=543 Description Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian -…
Known Notation Time Limit: 2 Seconds Memory Limit: 65536 KB Do you know reverse Polish notation (RPN)? It is a known notation in the area of mathematics and computer science. It is also known as postfix notation since every operator in an expres…
Optiver sponsored problem. After years of hard work Optiver has developed a mathematical model that allows them to predict wether or not a company will be succesful. This obviously gives them a great advantage on the stock market. In the past, Optive…
This is a very easy problem. ACMeow loves GTX1920. Now he has m RMB, but no GTX1920s. In the next n days, the unit price of GTX1920 in the ith day is Ci RMB. In other words, in the ith day, he can buy one GTX1920 with Ci RMB, or sell one GTX1920 to g…
Pass-Muraille Time Limit: 2 Seconds Memory Limit: 65536 KB In modern day magic shows, passing through walls is very popular in which a magician performer passes through several walls in a predesigned stage show. The wall-passer (Pass-Muraille) h…
Arctic Network The Department of National Defence (DND) wishes to connect several northern outposts by a wireless network. Two different communication technologies are to be used in establishing the network: every outpost will have a radio transceive…
B - Team Formation Description For an upcoming programming contest, Edward, the headmaster of Marjar University, is forming a two-man team from N students of his university. Edward knows the skill level…
题目描述: D. Vus the Cossack and Numbers Vus the Cossack has nn real numbers aiai. It is known that the sum of all numbers is equal to 00. He wants to choose a sequence bb the size of which is nn such that the sum of all numbers is 00 and each bibi is ei…
Chiaki has n intervals and the i-th of them is [li, ri]. She wants to delete some intervals so that there does not exist three intervals a, b and c such that aintersects with b, b intersects with c and c intersects with a. Chiaki is interested in the…
解题思路:给出n件物品,每买三件,折扣为这三件里面最便宜的那一件即将n件物品的价值按降序排序,依次选择a[3],a[6],a[9]----a[3*k] Shopaholic Time Limit: 2 Seconds Memory Limit: 65536 KB Lindsay is a shopaholic. Whenever there is a discount of the kind where you can buy three items and only pay for…
