JSure的代码库

题目+自上至下DP解法：

Jogging TrailsTime Limit: 1000MS Memory Limit: 65536K   DescriptionGord is training for a marathon. Behind his house is a park with a large network of jogging tra

B-numberTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2469    Accepted Submission(s): 1349Problem DescriptionA wqb-number, or

FatMouse and CheeseTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Problem DescriptionFatMouse has stored some cheese in a city. The city can be consider

给出三个字串，问第三个字串能否由前两个字串拼凑而成。顺序不能打乱。

上次用自底向上递推的姿势Copy-Study了这道题的题解。但是还有一个个人觉得更容易接受的姿势——记忆化搜索。

Function Run FunTime Limit: 1000MS Memory Limit: 10000K   DescriptionWe all love recursion! Don't we? Consider a three-parameter recursive function w(a, b, c)

不要62Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Problem Description杭州人称那些傻乎乎粘嗒嗒的人为62（音：laoer）。杭州交通管理局经常会扩充一些的士车牌照，新近出来一个好消息，以后上牌照，不再含有不吉利的数字了，这样一

Number of LocksTime Limit: 1000MS Memory Limit: 10000K   DescriptionIn certain factory a kind of spring locks is manufactured. There are n slots (1 < n < 17, n is

XHXJ's LISTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Problem Description..................Another hobby of xhxj is yy(speculation) some magical prob

找零钱Time Limit: 1000 ms   Case Time Limit: 1000 ms   Memory Limit: 64 MBDescription我们知道人民币有1、2、5、10、20、50、100这几种面值。 现在给你n(1≤n≤250)元，让你计算换成用上面这些面额表示且总数不超过100张，共有几种。 比如4元，能用4张1元、2张1

Mother's MilkFarmer John has three milking buckets of capacity A, B, and C liters. Each of the numbers A, B, and C is an integer from 1 through 20, inclusive. Initially, buckets A and B are empty

Healthy HolsteinsBurch & KolstadFarmer John prides himself on having the healthiest dairy cowsin the world. He knows the vitamin content for one scoop of eachfeed type and the minimum daily vitami

Round NumbersTime Limit: 2000MS Memory Limit: 65536K   DescriptionThe cows, as you know, have no fingers or thumbs and thus are unable to play Scissors, Paper, St

D. Beautiful numberstime limit per test4 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputVolodya is an odd boy and his taste is

BombTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others)Problem DescriptionThe counter-terrorists found a time bomb in the dust. But this time the terrorist

10606. Balanced NumbersProblem code: BALNUMBalanced numbers have been used by mathematicians for centuries. A positive integer is considered a balanced number if:1)      Every even digit appea

Balanced NumberTime Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Problem DescriptionA balanced number is a non-negative integer that can be balanced if a pi

B. Little Elephant and Electionstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere have recently been elections i

滑雪Time Limit: 1000 ms   Case Time Limit: 1000 ms   Memory Limit: 64 MBDescriptionMichael喜欢滑雪百这并不奇怪， 因为滑雪的确很刺激。可是为了获得速度，滑的区域必须向下倾斜，而且当你滑到坡底，你不得不再次走上坡或者等待升降机来载你。Michael想知道载一个区域中最长底滑坡。区域由一个二维数组