1662. Check If Two String Arrays are Equivalent (E)
Check If Two String Arrays are Equivalent (E)
题目
Given two string arrays word1
and word2
, return true
if the two arrays represent the same string, and false
otherwise.
A string is represented by an array if the array elements concatenated in order forms the string.
Example 1:
Input: word1 = ["ab", "c"], word2 = ["a", "bc"]
Output: true
Explanation:
word1 represents string "ab" + "c" -> "abc"
word2 represents string "a" + "bc" -> "abc"
The strings are the same, so return true.
Example 2:
Input: word1 = ["a", "cb"], word2 = ["ab", "c"]
Output: false
Example 3:
Input: word1 = ["abc", "d", "defg"], word2 = ["abcddefg"]
Output: true
Constraints:
1 <= word1.length, word2.length <= 10^3
1 <= word1[i].length, word2[i].length <= 10^3
1 <= sum(word1[i].length), sum(word2[i].length) <= 10^3
word1[i]
andword2[i]
consist of lowercase letters.
题意
判断两个字符串数组拼接成的字符串是否相等。
思路
直接拼接比较。
代码实现
Java
class Solution {
public boolean arrayStringsAreEqual(String[] word1, String[] word2) {
StringBuilder sb1 = new StringBuilder(), sb2 = new StringBuilder();
for (String s : word1) sb1.append(s);
for (String s : word2) sb2.append(s);
return sb1.toString().equals(sb2.toString());
}
}
分类:
LeetCode
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