Question

Write a program that input a string from the user and counts the number of vowels in the string

Answer 1

#include <stdio.h>
#include<string.h>

int main()
{
    char str[100];
    int i,count=0,len;
    printf("enter string");
    gets(str);
    len=strlen(str);
    for(i=0;i<len;i++)
    {
        if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u' || str[i]=='A' || str[i]=='I' || str[i]=='E' || str[i]=='O' || str[i]=='U')
            count++;
        
    }
    printf("\nno of vowels : %d",count);

    return 0;
}

Answer 2

#include<stdio.h>
int main()
{
    int i,j,c=0,k;
    char a[100];
    scanf("%[^\n]",a);
    for(i=0;a[i];i++);
    for(j=0;j<i;j++)
    {
       if(a[j]=='a'||a[j]=='e'||a[j]=='i'||a[j]=='o'||a[j]=='u')
        c++;
    }
    printf("%d",c);
    return 0;
}