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1662. Check if two string arrays are equal.
Give you two string arrays word1 and word2. If the strings represented by the two arrays are the same, return true; otherwise, return false.
The string represented by the array is a string formed by concatenating all the elements in the array in order.
Example 1:
输入：word1 = ["ab", "c"], word2 = ["a", "bc"]
输出：true
解释：
word1 表示的字符串为 "ab" + "c" -> "abc"
word2 表示的字符串为 "a" + "bc" -> "abc"
两个字符串相同，返回 true
Example 2:
输入：word1 = ["a", "cb"], word2 = ["ab", "c"]
输出：false
Example 3:
输入：word1 = ["abc", "d", "defg"], word2 = ["abcddefg"]
输出：true
prompt:
1 <= word1.length, word2.length <= 103
1 <= word1[i].length, word2[i].length <= 103
1 <= sum(word1[i].length), sum(word2[i].length) <= 103
word1[i] 和 word2[i] 由小写字母组成
Problem solution (Java)
Used directly here return s1.equals(s2);, instead of the if-else statement
class Solution
{
public boolean arrayStringsAreEqual(String[] word1, String[] word2)
{
String s1 = "";
String s2 = "";
for(int index = 0;index < word1.length;index++)
{
s1 += word1[index];
}
for(int index = 0;index < word2.length;index++)
{
s2 += word2[index];
}
return s1.equals(s2);
}
}