D. Data Center Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/560/problem/B Description The startup "Booble" has shown explosive growth and now it needs a new data center with the capacity of m petabytes. Booble can b…
A------------------------------------------------------------------------------------ 题目链接:http://202.197.224.59/OnlineJudge2/index.php/problem/read/id/1260 题解:随机 n 个数把矩阵补全成 n × n 的.那么就是要算伴随矩阵的第一行,也就是逆矩阵的第一列,高斯消元即可. 源码:(Q神写的高斯消元,先贴一下诶,待补) #include<cs…
A. Array Factory 将下标按前缀和排序,然后双指针,维护最大的右边界即可. #include<cstdio> #include<algorithm> using namespace std; typedef long long ll; const int N=200010; int n,i,j,anslen,ansl,ansr,mr,q[N]; ll a[N],lim; inline bool cmp(int x,int y){return a[x]<a[y];…
Bound Found Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 1445 Accepted: 487 Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration…
A题意思是,给出两个数列,求一个区间,使第一个数列的区间或和第二个数列的区间或的和最大,输出最大和 很显然,或运算会使得答案越运算越大.所以,直接全部或起来,相加就是答案. = =打cf的时候自动脑补成异或,浪费了好多时间,超出int情况一开始没有考虑,于是加一次重交. #include <cstdio> const int N=1005; long long a[N],b[N]; int n; int main(){ scanf("%d",&n); for(int…