text: Stores the frequency of each character in strings of B [ ] each character of a string in B [ ]
code: var B_fre = Array ( 26 ) . fill ( 0 ) ; for ( var i = 0 ; i < n2 ; i ++ ) { var arr = Array ( 26 ) . fill ( 0 ) ; for ( var j = 0 ; j < B [ i ] . length ; j ++ ) { arr [ B [ i ] . charCodeAt ( j ) - ' ' . charCodeAt ( 0 ) ] ++ ; B_fre [ B [ i ] . charCodeAt ( j ) - ' ' . charCodeAt ( 0 ) ] = Math . max ( B_fre [ B [ i ] . charCodeAt ( j ) - ' ' . charCodeAt ( 0 ) ] , arr [ B [ i ] . charCodeAt ( j ) - ' ' . charCodeAt ( 0 ) ] ) ; } } for ( var i = 0 ; i < n1 ; i ++ ) { var flag = 0 ; for ( var j = 0 ; j < 26 ; j ++ ) {