Program to find the vowels in given string

Check vowels

In this example, we’ll find the vowels in the string provided by the users.

Logic: Here we’ll take an array of size 5 such that, its each index stores the count of a vowel. Then, we search the vowels from the string and increment the value at the particular position of the array.

Algorithm:

1. Take a string as input.
2. Declare an array of size 5.
3. Traverse the string and print the count array.

Code:

#include <iostream>
#include <string>
using namespace std;
int vowel(char c)
{
	switch(c)
	{
		case 'a' :
			{return 0;break;}
		case 'A' :
			{return 0;break;}
		case 'e':
			{return 1;break;}
		case 'E':
			{return 1;break;}
		case 'i' :
			{return 2;break;}
		case 'I':
			{return 2;break;}
		case 'o':
			{return 3;break;}
		case 'O':
			{return 3;break;}
		case 'u' :
			{return 4;break;}
		case'U':
			{return 4;break;}
		default:
			{return 5;break;}
	}
}int main()
{
	string str;
	int count[5]={0},x;
	cout<<"Enter a string: ";
	getline(cin,str);
	int len=str.length();
	for(int i = 0; i<len; i++)
	{	x=vowel(str[i]);
		if(x<5)
			count[x]+=1;
	}
	cout<<"\n a:"<< count[0];
	cout<<"\n e:"<<count[1];
	cout<<"\n i:"<<count[2];
	cout<<"\n o:"<<count[3];
	cout<<"\n u:"<<count[4];
return 0;

}

Output:

Enter a string: aeiouaeiou
a:2
e:2
i:2
o:2
u:2