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2015

zoj 3634 Bounty hunter(dp,已经想明白)

·2 分钟
M - Bounty hunter **Time Limit:**5000MS **Memory Limit:**65536KB 64bit IO Format:%lld & %llu Submit Status Description Bounty hunter is a hero who always moves along cities to earn money by his power. One day he decides to N cities one by one

codeforces 589 I - Lottery(水)

·2 分钟
I - Lottery **Time Limit:**2000MS **Memory Limit:**524288KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 589I Description Today Berland holds a lottery with a prize – a huge sum of money! There are k persons, who attend the lottery. Each of them will receive a unique integer from 1 to k.

POJ 2253 - Frogger (floyd)

·2 分钟
A - Frogger **Time Limit:**1000MS **Memory Limit:**65536KB 64bit IO Format:%I64d & %I64u Submit Status Description Freddy Frog is sitting on a stone in the middle of a lake. Suddenly he notices Fiona Frog who is sitting on another stone. He plans to visit her, but since the water is dirty and full of tourists’ sunscreen, he wants to avoid swimming and instead reach her by jumping. Unfortunately Fiona’s stone is out of his jump range. Therefore Freddy considers to use other stones as intermediate stops and reach her by a sequence of several small jumps. To execute a given sequence of jumps, a frog’s jump range obviously must be at least as long as the longest jump occuring in the sequence. The frog distance (humans also call it minimax distance) between two stones therefore is defined as the minimum necessary jump range over all possible paths between the two stones.

codeforces #326 div 2 A. Duff and Meat(水)

·1 分钟
A. Duff and Meat time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Duff is addicted to meat! Malek wants to keep her happy for n days. In order to be happy in i-th day, she needs to eat exactly a__i kilograms of meat.

zoj 3635 Cinema in Akiba (树状数组求第K大)

·2 分钟
Cinema in Akiba Cinema in Akiba (CIA) is a small but very popular cinema in Akihabara. Every night the cinema is full of people. The layout of CIA is very interesting, as there is only one row so that every audience can enjoy the wonderful movies without any annoyance by other audiences sitting in front of him/her.

zoj 3625 D - Geek's Collection(正项无穷级数,麦克劳林展开式,2015年10月AC)

·2 分钟
D - Geek’s Collection **Time Limit:**2000MS **Memory Limit:**65536KB 64bit IO Format:%lld & %llu Submit Status Description The word geek is a slang term, with different meanings ranging from “a computer expert or enthusiast” to “a carnival performer who performs sensationally morbid or disgusting acts”, with a general pejorative meaning of “a peculiar or otherwise dislikable person, especially one who is perceived to be overly intellectual”.

hdu 2531 Catch him (bfs)

·3 分钟
Catch him # **Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 664 Accepted Submission(s): 307 **

codeforces #324 div 2 A. Olesya and Rodion

·1 分钟
A. Olesya and Rodion time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Olesya loves numbers consisting of n digits, and Rodion only likes numbers that are divisible by t. Find some number that satisfies both of them.

51nod_learn_greedy_活动安排2

·2 分钟
有若干个活动,第i个开始时间和结束时间是[Si,fi),同一个教室安排的活动之间不能交叠,求要安排所有活动,最少需要几个教室?