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isalpha - Find whether the given character is alphabetic or not in C

#include<stdio.h>
#include<ctype.h>
 
int main()
{
    char a;
    scanf( "%c", &a );
    if( isalpha(a) )
        printf( "This is an Alphabetic character: %c\n", a );
    else
        printf( "This is NOT an Alphabetic character: %c\n", a );
    return 0;
}