Your friend is typing his name
into a keyboard. Sometimes, when typing a character c
, the key might get long pressed, and the character will be typed 1 or more times.
You examine the typed
characters of the keyboard. Return True
if it is possible that it was your friends name, with some characters (possibly none) being long pressed.
Example 1:
Input: name = "alex", typed = "aaleex"
Output: true
Explanation: 'a' and 'e' in 'alex' were long pressed.
Example 2:
Input: name = "saeed", typed = "ssaaedd"
Output: false
Explanation: 'e' must have been pressed twice, but it wasn't in the typed output.
Example 3:
Input: name = "leelee", typed = "lleeelee"
Output: true
Example 4:
Input: name = "laiden", typed = "laiden"
Output: true
Explanation: It's not necessary to long press any character.
Note:
name.length <= 1000
typed.length <= 1000
- The characters of
name
andtyped
are lowercase letters.
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。
36ms
1 class Solution { 2 func isLongPressedName(_ name: String, _ typed: String) -> Bool { 3 var p:Int = 0 4 for num in 0..<typed.count 5 { 6 var typeIndex = typed.index(typed.startIndex,offsetBy: num) 7 var nameIndex = name.index(name.startIndex,offsetBy: p) 8 if p < name.count && typed[typeIndex] == name[nameIndex] 9 { 10 p += 1 11 } 12 else 13 { 14 if num > 0 && typed[typeIndex] == typed[typed.index(typed.startIndex,offsetBy: num - 1)] 15 { 16 continue 17 } 18 else 19 { 20 return false 21 } 22 } 23 } 24 return p == name.count 25 } 26 }