Pre-requisite: Pointers in C++
Given a string of lowercase english alphabets. The task is to count number of vowels present in a string using pointers
Input : str = "geeks" Output : 2 Input : str = "geeksforgeeks" Output : 5
- Initialize the string using a character array.
- Create a character pointer and initialize it with the first element in array of charcter (string).
- Create a counter to count vowels.
- Iterate the loop till character pointer find ‘\0’ null character, and as soon as null character encounter, stop the loop.
- Check whether any vowel is present or not while iterating the pointer, if vowel found increment the count.
- Print the count.
Below is the implementation of the above approach:
Vowels in above string: 5
- Count the pairs of vowels in the given string
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- Count of cyclic permutations having XOR with other binary string as 0
- Count occurrences of a sub-string with one variable character
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- Longest Ordered Subsequence of Vowels
- 'this' pointer in C++
- Type of 'this' pointer in C++
- Pointer vs Array in C
- Function Pointer in C
- void pointer in C / C++
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