LeetCode 2185. Counting Words With a Given Prefix

🔗 https://leetcode.com/problems/counting-words-with-a-given-prefix

题目

• 给一个字符串数组，返回其中前缀为 pref 的个数

思路

• 模拟

代码

class Solution {
public:int prefixCount(vector<string>& words, string pref) {int count = 0;for (int i = 0; i < words.size(); i++) {bool mark = true;for (int j = 0; j < pref.size(); j++) {if (pref[j] != words[i][j]) {mark = false;break;}}if (mark) count++;}return count;}
};