S_Black的专栏

T9Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2186    Accepted Submission(s): 828Problem DescriptionA while ago it was quite

Keywords SearchTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 47681    Accepted Submission(s): 15186Problem DescriptionIn the

病毒侵袭Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 17930    Accepted Submission(s): 4484Problem Description当太阳的光辉逐渐被月亮遮蔽，世界失去了光

Tempter of the BoneTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 96288    Accepted Submission(s): 26091Problem DescriptionTh

Oil DepositsTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 20535    Accepted Submission(s): 11816Problem DescriptionThe GeoSurvComp

RescueTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 23012    Accepted Submission(s): 8134Problem DescriptionAngel was caught by th

Red and BlackTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14637    Accepted Submission(s): 9070Problem DescriptionThere is a rect

Ignatius and the Princess ITime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 15512    Accepted Submission(s): 4909Special JudgeProblem D

诡异的楼梯Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 11508    Accepted Submission(s): 2854Problem DescriptionHogwarts正式开学以后,Harry发现

Sequence oneTime Limit: 6000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 526    Accepted Submission(s): 198Problem DescriptionSearch is important

饭卡Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 18439    Accepted Submission(s): 6430Problem Description电子科大本部食堂的饭卡有一种很诡异的设计，即在购买之

钱币兑换问题Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8239    Accepted Submission(s): 4927Problem Description在一个国家仅有1分，2分，3分硬币，将钱N兑换

RobberiesTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 17915    Accepted Submission(s): 6616Problem DescriptionThe aspiring Roy th

Bone CollectorTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 43693    Accepted Submission(s): 18229Problem DescriptionMany years ag

救灾Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 21161    Accepted Submission(s): 8946Problem Description急！灾区的食物依然短缺！为了挽救灾区同胞的生命，

WHUgirlsTime Limit: 3000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2557    Accepted Submission(s): 952Problem DescriptionThere are many prett

Big Event in HDUTime Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 31539    Accepted Submission(s): 11051Problem DescriptionNowadays,

Bone Collector IITime Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3411    Accepted Submission(s): 1758Problem DescriptionThe title of

最短路径问题Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 19115    Accepted Submission(s): 5692Problem Description给你n个点，m条无向边，每条边都有长

A strange liftTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 17322    Accepted Submission(s): 6504Problem DescriptionThere is a

Good NumbersTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3679    Accepted Submission(s): 1166Problem DescriptionIf we sum up

敌兵布阵Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 65363    Accepted Submission(s): 27529Problem DescriptionC国的死对头A国这段时间正在进行军事演

Color the ballTime Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 14092    Accepted Submission(s): 7055Problem DescriptionN个气球排成一排，从

BillboardTime Limit: 20000/8000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 16924    Accepted Submission(s): 7155Problem DescriptionAt the entranc

AtlantisTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9777    Accepted Submission(s): 4184Problem DescriptionThere are several

LCISTime Limit: 6000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5863    Accepted Submission(s): 2545Problem DescriptionGiven n integers.Yo

Just a HookTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 24807    Accepted Submission(s): 12378Problem DescriptionIn the game

Oh My Holy FFFTime Limit: 5000/2500 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 904    Accepted Submission(s): 232Problem DescriptionN soldiers fr

亲和串Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10714    Accepted Submission(s): 4878Problem Description人随着岁数的增长是越大越聪明还是越大越笨，

PeriodTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5221    Accepted Submission(s): 2515Problem DescriptionFor each prefix of

Phone ListTime Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 15502    Accepted Submission(s): 5206Problem DescriptionGiven a list o

统计难题Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 27105    Accepted Submission(s): 10884Problem DescriptionIgnatius最近遇到一个难题,老

What Are You Talking AboutTime Limit: 10000/5000 MS (Java/Others)    Memory Limit: 102400/204800 K (Java/Others)Total Submission(s): 18200    Accepted Submission(s): 5911Problem Descriptio

Hat’s WordsTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11664    Accepted Submission(s): 4160Problem DescriptionA hat’s word

Ancient PrinterTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 1536    Accepted Submission(s): 755Problem DescriptionThe contes

RepositoryTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 3442    Accepted Submission(s): 1291Problem DescriptionWhen you go sho

Fibonacci Again题目链接 Fibonacci Again题目大意 就是给定你一个Fibonacci数列的前两项（和传统的不相同，比如这里是7和11），然后让你求第n项是否能整除3。题解 就是一个很简单的取mod问题，挨个取mod就行了。代码#include <iostream>#include <cstdio>#include <cstring>using namespa

Train Problem II题目链接 Train Problem II题目大意 问有n个不同的火车进栈，最后出栈的方法总数。题解 经过推导，发现第i个数是C（2n,n）/n+1，就是卡特兰数。我们只要求出前100个卡特兰数就可以了。代码（参考了隔壁大神的代码…）#include <iostream>#include <cstdio>#include <cstring>using n

Almost Sorted Array 链接 HDU 题目链接题解 这题主要的思想就是运用前缀和后缀数组，判断删去一个之后剩余的部分是否是有序的，如果 代码#include <iostream>#include <cstdio>#include <cstring>using namespace std;int T,n,a[100005],pre1[100005],sim

House Building题目链接 House Building题目大意 就是一个用多个小方块搭成的建筑，我们需要计算他的表面积，不用算底面的面积。 题解 对每个坐标位置的方块进行处理，检查他有几个面是暴露在外面的，这样我们可以得出每个坐标位置的方块的表面积，最后加起来就可以了。 代码 比较易懂的代码#include <iostream>#incl