Find number of vowels in a string.

#include<stdio.h>

int main()

{

char str[25];

printf("Enter string.\n");

gets(str);

int i = 0;

int count = 0;

while(str[i] != '\0')

{

if(str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u')

{

count++;

}

i++;

}

printf("\nNo. of vowels is %d",count);

return 0;

}

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