2023年12月第4周面试算法题总结

809. 情感丰富的文字------阅读理解题

1、s = "abcd"; words = "abc"; 的情况怎么处理

2、怎么求lens与lenw？（连续出现的字符串长度）

class Solution {
public:
bool isStretchy(const string& s, const string& word) {
    int i = 0;
    int j = 0;
    while (i < s.size() && j < word.size()) {
        if (s[i] != word[j]) {
            return false;
        }
        int lens = 0;
        int lenw = 0;
        while (i + lens < s.size() && s[i + lens] == s[i]) {
            lens++;
        }
        while (j + lenw < word.size() && word[j + lenw] == word[j]) {
            lenw++;
        }
        if ((lens < 3 && lens != lenw) || (lenw == 0 && lens != 0) || (lens < lenw)) {
            return false;
        }
        i += lens;
        j += lenw;
    }
    return i == s.size() && j == word.size();
}
    int expressiveWords(string s, vector<string>& words) {
        int count = 0;
        for (int i = 0; i < words.size(); i++) {
            if (isStretchy(s, words[i])) {
                count++;
            }
        }
        return count;
    }
};