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| author | MZuenni <michi.zuendorf@gmail.com> | 2023-02-14 16:41:24 +0100 |
|---|---|---|
| committer | MZuenni <michi.zuendorf@gmail.com> | 2023-02-14 16:41:24 +0100 |
| commit | eb4bc75111da45a17604fdff2f9eed0977f93dff (patch) | |
| tree | ffd990c0cc12a73c897a6e5c0d8216ce178a78c5 /string/kmp.cpp | |
| parent | f07738a30c46f0a277af5609a3b4c4b01674ad84 (diff) | |
moved more stuff
Diffstat (limited to 'string/kmp.cpp')
| -rw-r--r-- | string/kmp.cpp | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/string/kmp.cpp b/string/kmp.cpp index 12ae3eb..421479e 100644 --- a/string/kmp.cpp +++ b/string/kmp.cpp @@ -1,18 +1,15 @@ vector<int> kmpPreprocessing(const string& sub) { vector<int> b(sz(sub) + 1); b[0] = -1; - int i = 0, j = -1; - while (i < sz(sub)) { + for (int i = 0, j = -1; i < sz(sub);) { while (j >= 0 && sub[i] != sub[j]) j = b[j]; - i++; j++; - b[i] = j; + b[++i] = ++j; } return b; } vector<int> kmpSearch(const string& s, const string& sub) { - vector<int> pre = kmpPreprocessing(sub), result; - int i = 0, j = 0; - while (i < sz(s)) { + vector<int> result, pre = kmpPreprocessing(sub); + for (int i = 0, j = 0; i < sz(s);) { while (j >= 0 && s[i] != sub[j]) j = pre[j]; i++; j++; if (j == sz(sub)) { |
