首页 > 其他 > 详细

LeetCode 389. Find the Difference

时间:2018-12-03 22:31:30      阅读:196      评论:0      收藏:0      [点我收藏+]

Given two strings s and t which consist of only lowercase letters.

String t is generated by random shuffling string s and then add one more letter at a random position.

Find the letter that was added in t.

Example:

Input:
s = "abcd"
t = "abcde"

Output:
e

Explanation:
'e' is the letter that was added.
class Solution {
public:
    char findTheDifference(string s, string t) {
        map<char,int> count;
        for(int i=0;i<s.size();i++)
            count[s[i]]++;
        for(int i=0;i<t.size();i++){
            count[t[i]]--;
            if(count[t[i]]==-1)
               return t[i];
        }
    }
};

LeetCode 389. Find the Difference

原文:https://www.cnblogs.com/A-Little-Nut/p/10061305.html

(0)
(0)
   
举报
评论 一句话评论(0
关于我们 - 联系我们 - 留言反馈 - 联系我们:wmxa8@hotmail.com
© 2014 bubuko.com 版权所有
打开技术之扣,分享程序人生!