For every character , check if there exists uppercase as well as lowercase characters
for ( int i = 0 ; i < 26 ; i ++ ) { if ( small [ i ] != 0 && ( caps [ i ] == 0 ) ) return 0 ; else if ( ( small [ i ] == 0 ) && ( caps [ i ] != 0 ) ) return 0 ; } return 1 ; }