large bag of m ms

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hdu2852 KiKi ' s k-number tree-like array for K-large number

Getsum (b-1) B is the K-large number of a.Also Gesum (b-1) #include #include #include using namespace Std;const int maxn=100010;int TREE[MAXN];int lowbit (int i){Return (i (-i));}int getsum (int i){int sum=0;while (i>0){Sum+=tree[i];I-=lowbit (i);}return sum;}void update (int i,int dx){while (I{TREE[I]+=DX;I+=lowbit (i);}}void Find (int left,int right,int num){while (Left{int middle= (left+right)/2;int middle = left + (right-left)/2;int tmp=getsum (mi

Shell's three large text processing tools grep, sed, and awk

eachCont.I\: Inserts text before the current line. Rows are deleted at the end of each line, except for the last row, when multiple rows are addedH: Copy the contents of the pattern space to the staging bufferH: Append the contents of the pattern space to the staging bufferG: Copy the contents of the staging buffer to the schema space, overwriting the original contentG: Append the contents of the staging buffer to the schema space, appended to the original content L: List nonprinting character

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