Leetcode: 【每日一题】- 2020-01-15 - 925. 长按键入

Created on 15 Jan 2020  ·  5Comments  ·  Source: azl397985856/leetcode

你的朋友正在使用键盘输入他的名字 name。偶尔,在键入字符 c 时,按键可能会被长按,而字符可能被输入 1 次或多次。

你将会检查键盘输入的字符 typed。如果它对应的可能是你的朋友的名字(其中一些字符可能被长按),那么就返回 True。

 

示例 1:

输入:name = "alex", typed = "aaleex"
输出:true
解释:'alex' 中的 'a' 和 'e' 被长按。
示例 2:

输入:name = "saeed", typed = "ssaaedd"
输出:false
解释:'e' 一定需要被键入两次,但在 typed 的输出中不是这样。
示例 3:

输入:name = "leelee", typed = "lleeelee"
输出:true
示例 4:

输入:name = "laiden", typed = "laiden"
输出:true
解释:长按名字中的字符并不是必要的。
 

提示:

name.length <= 1000
typed.length <= 1000
name 和 typed 的字符都是小写字母。

来源:力扣(LeetCode)
链接:https://leetcode-cn.com/problems/long-pressed-name
著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。

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Most helpful comment

控制双指针对两个字符串进行字符比对即可。

    public boolean isLongPressedName(String name, String typed) {

        if (typed.length() < name.length())
            return false;
        int left = 0, right = 0;

        while (left < name.length() && right < typed.length()) {

            if (name.charAt(left) == typed.charAt(right)) {

                left++;
                right++;
            } else if (right > 0 && typed.charAt(right) == typed.charAt(right - 1))
                right++;
            else
                return false;
        }

        return left == name.length();
    }

All 5 comments

控制双指针对两个字符串进行字符比对即可。

    public boolean isLongPressedName(String name, String typed) {

        if (typed.length() < name.length())
            return false;
        int left = 0, right = 0;

        while (left < name.length() && right < typed.length()) {

            if (name.charAt(left) == typed.charAt(right)) {

                left++;
                right++;
            } else if (right > 0 && typed.charAt(right) == typed.charAt(right - 1))
                right++;
            else
                return false;
        }

        return left == name.length();
    }

@unclegem same idea Python Code

class Solution:
    def isLongPressedName(self, name: str, typed: str) -> bool:
        i = j = 0
        m = len(name)
        n = len(typed)
        if m > n:
            return False
        while i < m and j < n:
            if name[i] == typed[j]:
                i += 1
                j += 1
            elif typed[j] == typed[j - 1]:
                j += 1
            else:
                return False

        return i == m

public boolean isLongPressedName(String name, String typed) {

    if (typed.length() < name.length())
        return false;
    int left = 0, right = 0;

    while (left < name.length() && right < typed.length()) {

        if (name.charAt(left) == typed.charAt(right)) {

            left++;
            right++;
        } else if (right > 0 && typed.charAt(right) == typed.charAt(right - 1))
            right++;
        else
            return false;
    }

    return left == name.length();
}

@hhbszyc001 注意下格式

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