Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. Example 1: Input: "Let‘s take LeetCode contest" Output: "s‘teL ekat edoCteeL tsetnoc" Note: In the string, each word is separated by single space and there will not be any extra space in the string.
I just wanted to use the same logic as Reverse Words in a String II. Step 1. Convert the string to char[] array Step 2. Whenever I encounter a space ‘ ‘ , I call the reverse function ( just to keep the code clean ) Step 3. Repeat till the end! Hope this helps! Thanks for voting :)
public String reverseWords(String s)
{
char[] s1 = s.toCharArray();
int i = 0;
for(int j = 0; j < s1.length; j++)
{
if(s1[j] == ‘ ‘)
{
reverse(s1, i, j - 1);
i = j + 1;
}
}
reverse(s1, i, s1.length - 1);
return new String(s1);
}
public void reverse(char[] s, int l, int r)
{
while(l < r)
{
char temp = s[l];
s[l] = s[r];
s[r] = temp;
l++; r--;
}
}
557. Reverse Words in a String III
原文：http://www.cnblogs.com/apanda009/p/7992084.html