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https://www.codechef.com/DEC17/problems/CHEFEXQ 题意: 位置i的数改为k 询问区间[1,i]内有多少个前缀的异或和为k 分块 sum[i][j] 表示第i块内,有多少个前缀,他们的异或和为j a[i] 表示 位置i的数 位置i改为k: 若 g=x1^x2^x3…… 把 x1 改为 k 后,那新的g=x1^x1^k^x2^x3…… 所以修改可以看做整体异或 修改后的值^原来的值 即 区间[i,n] 异或上a[i]^k i所在块单个改,后面的块整体打标…

https://www.codechef.com/DEC17/problems/CHEFHAM #include<cstdio> #include<cstring> #include<iostream> using namespace std; #define N 100001 int a[N],b[N]; ]; int num1[N],num2[N]; void read(int &x) { x=; char c=getchar(); while(!isdig…

https://www.codechef.com/DEC17/problems/VK18 #include<cstdio> #include<iostream> #include<algorithm> using namespace std; #define N 1000001 ],dp[N]; ]; void read(int &x) { x=; char c=getchar(); while(!isdigit(c)) c=getchar(); +c-'; c…

https://www.codechef.com/DEC17/problems/CPLAY #include<cstdio> #include<algorithm> using namespace std; ]; int main() { int sumA,sumB; )!=EOF) { sumA=sumB=; int i; ;i<=;++i) { ) { ') { sumA++; -i+)/) break; } else { -i)/) break; } } else {…

https://www.codechef.com/DEC17/problems/GIT01 #include<cstdio> #include<algorithm> using namespace std; #define N 101 char s[N]; int main() { int T; scanf("%d",&T); int n,m; int OddG,OddR,EvenG,EvenR; int ans; while(T--) { OddG=O…

Almost 11 years after we created CodePlex, it’s time to say goodbye.  We launched CodePlex in 2006 because we, like others in the industry, saw a need for a great place to share software.  Over the years, we’ve seen a lot of amazing options come and…

What is RCU, Fundamentally? https://lwn.net/Articles/262464/ If you can fill the unforgiving secondwith sixty minutes worth of distance run,“Highly scalable” your code will be reckoned,And—which is more—you'll have parallel fun! With apologies to Rud…

Main Menu Fortune.com       E-mail Tweet Facebook Linkedin Share icons By Roger Parloff Illustration by Justin Metz SEPTEMBER 28, 2016, 5:00 PM EDT WHY DEEP LEARNING IS SUDDENLY CHANGING YOUR LIFE Decades-old discoveries are now electrifying the comp…

Paper about Event Detection. #@author: gr #@date: 2014-03-15 #@email: forgerui@gmail.com 看一些相关的论文. 1. <Efficient Visual Event Detection using Volumetric Features> ICCV 2005 扩展2D box 特征到3D时空特征. 构建一个实时的检测器基于容积特征. 采用传统的兴趣点方法检测事件. 2. <ARMA-HMM: A New…