【LeetCode字符串】--14.最长公共前缀

14.最长公共前缀

class Solution {
    public String longestCommonPrefix(String[] strs) {
        if(strs == null || strs.length == 0){
            return "";
        }
        int length = strs[0].length();
        int count = strs.length;
        for(int i =0;i<length;i++){
            char c = strs[0].charAt(i);
            for(int j = 1;j<count;j++){
                if(i == strs[j].length() || strs[j].charAt(i) != c){
                    return strs[0].substring(0,i);
                }
            }
        }
        return strs[0];

    }
}