Write a function that takes a string as input and reverse the same.
Example:
Given s = "hello", return "olleh".
Approach: The idea is to swap the last and the first characters till the middle is reached.
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string reverseString(string &s) {
int low = 0, high = s.length() - 1;
while(low < high){
char t = s[low];
s[low] = s[high];
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Saturday, 22 January 2022
Saturday, 8 January 2022
Reverse Vowels of a String
Write a function that takes a string as input and reverse only the vowels of a string.
Example 1:
Given s = "hello", return "holle".
Approach: The idea is to traverse the string from both ends while skipping the non-vowels characters from both ends.
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char* reverseVowels(char* s) {
int low = 0, high = strlen(s) - 1;
...
