Given a string S, comprising of only lowercase English alphabets, the task is to update the string by eliminating such vowels from the string that occur between two consonants.
Here the letter ‘a’ is a vowel and is between two immediate consonants.
Thus, it is removed from the string, and the resultant string becomes ‘bb‘
In the substring ‘for’ the alphabet ‘o’ is between two consonants ‘f’ and ‘r’.
Thus, it is removed from there and the string becomes-‘geeksfrgeeks‘
Approach: Initialize an empty updatedString. Given below are the steps to solve the above problem.
- Traverse the string from left to right.
- If the current character is a vowel, check the character before it and the character after it, if both of these are consonants, then the current vowel is a ‘Sandwiched Vowel’ and it needs to be removed from S, thus don’t append this character to A.
Else, append the current character to A.
- Continue the process until all the vowels in between two consonants are removed from the string
Below is the implementation of the above approach:
Time Complexity: O(N) where N is the length of the input string.
- Modify the string by swapping continuous vowels or consonants
- Modify the string such that it contains all vowels at least once
- Check if a string can be converted to another string by replacing vowels and consonants
- Replace all consonants with nearest vowels in a string
- Encrypt string with product of number of vowels and consonants in substring of size k
- Print reverse string after removing vowels
- Count strings with consonants and vowels at alternate position
- Arrange consonants and vowels nodes in a linked list
- Replace consonants with next immediate consonants alphabetically in a String
- Program to remove consonants from a String
- Minimum cost to modify a string
- Count consonants in a string (Iterative and recursive methods)
- First X vowels from a string
- Reverse vowels in a given string
- Remove consecutive vowels from string
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