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solution.js
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solution.js
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/**
* @param {string} S
* @param {string[]} words
* @return {number}
*/
// 按题目说的做就好了
function isExpressiveWord (S, word) {
let index1 = 0;
let index2 = 0;
while (index1 < S.length && index2 < word.length) {
const char1 = S[index1++];
const char2 = word[index2++];
if (char1 !== char2) {
return false;
}
let count1 = 1;
while (index1 < S.length && S[index1] === char1) {
count1++;
index1++;
}
let count2 = 1;
while (index2 < word.length && word[index2] === char2) {
count2++;
index2++;
}
if (count1 < count2 || (count1 > count2 && count1 < 3)) {
return false;
}
}
if (index1 !== S.length || index2 !== word.length) {
return false;
}
return true;
}
var expressiveWords = function (S, words) {
let result = 0;
for (let i = 0; i < words.length; i++) {
isExpressiveWord(S, words[i]) && result++;
}
return result;
};