PAT-2.c

/* C program to count the number of vowels, consonants, digits and special characters in a string */

#include <stdio.h>
int main()
{
    char str[150];
    int i, vowels, consonants, digits, spaces, symbols;
    vowels = consonants = digits = spaces = symbols = 0;
    gets(str);
    for(i=0; str[i]!='\0'; ++i){
        if(str[i]=='a' || str[i]=='e' || str[i]=='i' || str[i]=='o' || str[i]=='u' || str[i]=='A' || str[i]=='E' || str[i]=='I' || str[i]=='O' || str[i]=='U'){
            ++vowels;
        }
        else if((str[i]>='a'&& str[i]<='z') || (str[i]>='A'&& str[i]<='Z')){
            ++consonants;
        }
        else if(str[i]>='0' && str[i]<='9'){
            ++digits;
        }
        else if (str[i]==' '){
            ++spaces;
        }
        else{
            ++symbols;
        }
    }
    printf("Vowels: %d",vowels);
    printf("\nConsonants: %d",consonants);
    printf("\nDigits: %d",digits);
    printf("\nWhite spaces: %d", spaces);
    printf("\nSymbols: %d", symbols);
    return 0;
}