LeetCode 387：first-unique-character-in-a-string

题目：https://leetcode.com/problems/first-unique-character-in-a-string/

难度：Easy

int firstUniqChar(char* s) {int a[26][2]={0};for(int i=0;i<strlen(s);i++){a[s[i]-'a'][0]++;a[s[i]-'a'][1]=i;}int res= 100000;for(int i=0;i<26;i++){if(a[i][0]==1 && a[i][1]<res){res=a[i][1];}}if(res == 100000)return -1;return res;
}

转载于:https://www.cnblogs.com/boucher/p/5805584.html

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