const int MAXL = 10011, MAXN = 6; struct SuffixArray { struct RadixElement { int id, k[2]; } RE[MAXL], RT[MAXL]; int N, A[MAXL], SA[MAXL], Rank[MAXL], Height[MAXL], C[MAXL]; void RadixSort() { int i, y; for (y = 1; y >= 0; y--) { memset(C, 0, s...
void RadixSort () { unsigned MX(0); // 记录最大键值 for (register unsigned i(1); i <= n; ++i) { ++Bucket[S[i].SubRK]; // 第二关键字入桶 MX = max(S[i].SubRK, MX); } sumBucket[0] = 0; for (register unsigned i(1); i <= MX; ++i) { // 求前缀和以确定在排序...
其中kindkind是rankrank中不同值的种数(由于rankrank从00开始,也可以看成rankrank中最大值加11),tp[i]tp[i]表示哪个串的第二关键字在所有第二关键字中的排名是ii。 voidradix_sort(){staticintcount[N];memset(count,0,sizeof(int[kind]);for(inti =0; i < len; i++) count[rank[tp[i]]]++;f...
int rk[maxn],a[maxn],b[maxn]; void suffix_array(int *str,int *sa,int n,int m){ for(int i=0;i<n;++i) rk[i]=i; radix(str,rk,sa,n,m); rk[sa[0]]=0; for(int i=1;i<n;++i) rk[sa[i]]=rk[sa[i-1]]+(str[sa[i]]!=str[sa[i-1]]); for(int i=0;1<<i...
lost in the suffix array P “Linear-Time Longest-Common-Prefix Computation in Suffix Arrays and Its Applications” Skew-algorithm Step 1: SA ≠ 0 = sort the suffixes starting at position i ≠ 0 mod 3. Step 2: SA = 0 = sort the suffixes starting at position i = 0 mod 3. ...
. A piece of code ("radix sort of equivalence classes" part): for (int i=0; i<n; ++i) { pn[i] = p[i] - (1<<h); if (pn[i] < 0) pn[i] += n; } memset (cnt, 0, classes * sizeof(int)); for (int i=0; i<n; ++i) ++cnt[c[pn[i]]]; for (int i=1; ...
Mathematically, BWT can be derived from the constructed suffix array. In this work, we analyze the current parallel implementations of SACAs and introduce the first heterogeneous implementation of the SA-DS algorithm on GPU. In order to achieve better performance, we also optimize the radix sort ...
Then we compute the ranks of S12 and assign the ranks into an inverse suffix array (ISA[12]). From now on, we work with suffixes in partially-sorted order rather than text order. In other words, after this initial radix sort, all suffixes with the same 3-character prefix are contiguous...
Hi,Is there a easy way to learn suffix array ??? i am finding it bit difficult to understand and code.Thanks.array, suffix -7 ghost016 13 years ago 9 Comments (5) Show archived | Write comment? ilyaraz 13 years ago, # | 0 It's basically radix sorting. Understand radix ...
suffix Array implementation using c++ suffixsuffixarraysuffix-array UpdatedSep 28, 2022 C++ Load more… Improve this page Add a description, image, and links to thesuffixtopic page so that developers can more easily learn about it. Add this topic to your repo ...