string reverseVowels(string s) {
int i = 0;
int len = s.size();
int j = 0;
char tempch ;
if (len== 0)
return s;
for (i = 0, j = len -1; i < j; i++, j--)
{
while(!isVowels(s[i]) && i < j)
{
i++;
}
while(!isVowels(s[j]) && i < j)
{
j--;
}
if (i >= j)
{
return s;
}
tempch = s[i];
s[i] = s[j];
s[j] = tempch;
}
return s;
}
string reverseVowels(string s) {
string str(s);
int len = s.size();
if(len == 0)
return s;
int start = 0;
int last = len - 1;
while(start < last)
{
while(start < last && !isVowels(s[start]))
start++;
while(start < last && !isVowels(s[last]))
last--;
char temp = str[start];
str[start] = str[last];
str[last] = temp;
start++;
last--;
}
return str;
}
