leetcode 面试题 17.11 单词距离

直接记录出现二者的位置后比较取最小值即可

class Solution {
public:
    int findClosest(vector<string>& words, string word1, string word2) {
        int ans=1000000;int l=-1,r=-1;
        for(int i=0;i<words.size();i++)
        {
            if(words[i]==word1)l=i;
            if(words[i]==word2)r=i;
            if(l!=-1&&r!=-1)
             ans=min(ans,abs(l-r));
        }
        return ans;
    }
};