g1001_1100.s1023_camelcase_matching.Solution Maven / Gradle / Ivy
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Java Solution for LeetCode algorithm problems, continually updating
package g1001_1100.s1023_camelcase_matching;
// #Medium #String #Two_Pointers #Trie #String_Matching
// #2022_02_26_Time_1_ms_(73.86%)_Space_43_MB_(6.82%)
import java.util.LinkedList;
import java.util.List;
public class Solution {
public List camelMatch(String[] queries, String pattern) {
List ret = new LinkedList<>();
for (String query : queries) {
ret.add(check(query, pattern));
}
return ret;
}
private Boolean check(String query, String pattern) {
int patternLen = pattern.length();
int patternPos = 0;
int uppercaseCount = 0;
for (int i = 0; i < query.length(); i++) {
char c = query.charAt(i);
if (Character.isUpperCase(c)) {
if (patternPos < patternLen && c != pattern.charAt(patternPos)) {
return false;
}
uppercaseCount++;
if (uppercaseCount > patternLen) {
return false;
}
patternPos++;
} else {
if (patternPos < patternLen && c == pattern.charAt(patternPos)) {
patternPos++;
}
}
}
return patternPos == patternLen;
}
}