text: 3 Cases as explained in Approach
code: if ( n >= L * 2 - 1 ) : NEW_LINE INDENT return 2 * H + 1 ; NEW_LINE DEDENT elif ( n >= L + ( L / 2 ) - 1 ) : NEW_LINE INDENT return 2 * H ; NEW_LINE DEDENT return 2 * H - 1 ; NEW_LINE