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J_Factory
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归并排序求逆序数
void mergeSort(int b, int e,int &change){ if(e-breturn ; int mid=(b+e)/2,p1=b,p2=mid+1,i=b; mergeSort(b,mid);mergeSort(mid+1,e); while(p1//p1 mid p2 e {原创 2008-08-18 17:14:00 · 395 阅读 · 0 评论 -
The maxinum contiguous subsequence sum problem
(1)the obvious O(N^3) algorithm/** *//** cibic maximum contiguous subsequence sum algorithm. seqStart and seqEnd represent the actual best sequence*/ public static int maxSubsequenceSum(int [原创 2008-05-26 22:10:00 · 656 阅读 · 0 评论