Max nber of digits allowed in a nber for this implementation
if ( ct >= 15 ) : NEW_LINE INDENT return NEW_LINE DEDENT if ( left == 0 ) : NEW_LINE INDENT ans [ n ] = 1 NEW_LINE DEDENT for i in range ( min ( left , 9 ) + 1 ) : NEW_LINE INDENT dfs ( n * 10 + i , left - i , ct + 1 ) NEW_LINE DEDENT