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formatting source-code for d7af6fdc8c

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2020-05-29 23:26:30 +00:00
parent edb3d51ec2
commit 7ad1f171c1
176 changed files with 5342 additions and 4288 deletions
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35
strings/knuth_morris_pratt.cpp
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@@ -26,14 +26,17 @@
* \param[in] pattern text for which to create the partial match table
* \returns the partial match table as a vector array
*/
std::vector<int> getFailureArray(const std::string &pattern) {
std::vector<int> getFailureArray(const std::string &pattern)
{
int pattern_length = pattern.size();
std::vector<int> failure(pattern_length + 1);
failure[0] = -1;
int j = -1;
for (int i = 0; i < pattern_length; i++) {
while (j != -1 && pattern[j] != pattern[i]) {
for (int i = 0; i < pattern_length; i++)
{
while (j != -1 && pattern[j] != pattern[i])
{
j = failure[j];
}
j++;
@@ -49,13 +52,16 @@ std::vector<int> getFailureArray(const std::string &pattern) {
* \returns `true` if pattern was found
* \returns `false` if pattern was not found
*/
bool kmp(const std::string &pattern, const std::string &text) {
bool kmp(const std::string &pattern, const std::string &text)
{
int text_length = text.size(), pattern_length = pattern.size();
std::vector<int> failure = getFailureArray(pattern);
int k = 0;
for (int j = 0; j < text_length; j++) {
while (k != -1 && pattern[k] != text[j]) {
for (int j = 0; j < text_length; j++)
{
while (k != -1 && pattern[k] != text[j])
{
k = failure[k];
}
k++;
@@ -66,21 +72,28 @@ bool kmp(const std::string &pattern, const std::string &text) {
}
/** Main function */
int main() {
int main()
{
std::string text = "alskfjaldsabc1abc1abc12k23adsfabcabc";
std::string pattern = "abc1abc12l";
if (kmp(pattern, text) == true) {
if (kmp(pattern, text) == true)
{
std::cout << "Found" << std::endl;
} else {
}
else
{
std::cout << "Not Found" << std::endl;
}
text = "abcabc";
pattern = "bca";
if (kmp(pattern, text) == true) {
if (kmp(pattern, text) == true)
{
std::cout << "Found" << std::endl;
} else {
}
else
{
std::cout << "Not Found" << std::endl;
}