Aquí vamos. Jugar al golf antes de la versión la rompió, pero ahora estamos de vuelta en línea. Estoy seguro de que se puede jugar más golf. Trabajaré más en eso mañana. Sin embargo, fue bastante difícil hacerlo funcionar correctamente sin jugar al golf, y mis ojos están cansados de mirarlo. Jaja
Java - 3220
import java.util.*;class a{int D=0,i,l,j;static boolean T=true,F=false;enum O{A("plus"),S("minus"),M("times"),D(""),P("point");String t;O(String u){t=u;}double p(double f,double s){if(this==A)f+=s;if(this==S)f-=s;if(this==M)f*=s;if(this==D)f/=s;return f;}static O f(String s){O r=null;for(O o:values())if(s.equals(o.t))r=o;return r;}}enum N{A("zero",0,F),B("one",1,F),C("two",2,F),D("three",3,F),E("four",4,F),AG("five",5,F),G("six",6,F),H("seven",7,F),I("eight",8,F),J("nine",9,F),K("ten",10,F),L("eleven",11,F),M("twelve",12,F),N("thirteen",13,F),O("fourteen",14,F),P("fifteen",15,F),Q("sixteen",16,F),R("seventeen",17,F),S("eighteen",18,F),AH("nineteen",19,F),U("twenty",20,F),V("thirty",30,F),W("forty",40,F),X("fifty",50,F),Y("sixty",60,F),Z("seventy",70,F),AA("eighty",80,F),AB("ninety",90,F),AC("hundred",100,T),AD("thousand",1000,T),AE("million",1000000,T),AF("billion",1000000000,T);String t;double v;boolean q;N(String u,int w,boolean r){t=u;v=w;q=r;}static N f(String s){N r=null;for(N n:values())if(s.equals(n.t))r=n;return r;}static N f(char s){return d(q(""+s));}static N d(double v){N r=null;for(N n:values())if(v==n.v)r=n;return r;}static String c(double n){return d(n).t;}}public static void main(String[]a){new a();}a(){while(T){try{List p=p(new Scanner(System.in).nextLine()),t=new ArrayList();double d=0;for(j=0;j<p.size();j++){Object o=p.get(j);if(o(o)){if((O)o==O.P){t.add((d(t.get(t.size()-1))+((d=d(p.get(j+1)))<10?d*=100:d<100?d*=10:d)/1000));t.remove(t.size()-2);j++;}else t.add(o);}else {N n=N.d(d(o));if(n!=null&&n.q){t.add((d(o))*d(t.get(t.size()-1)));t.remove(t.size()-2);}else t.add(o);}}double r=d(t.get(0));for(j=1;j<t.size();j++){Object c=t.get(j),l=t.get(j-1);if(o(c))continue;if(c instanceof Double&&l instanceof Double)r+=d(c);else r=((O)t.get(j-1)).p(r,d(t.get(j)));}System.out.println(p(r));}catch(Exception e){System.out.println("E");}}}List p(String s) {List r=new ArrayList();Scanner i=new Scanner(s);while(i.hasNext()){String c=i.next();if(c.equals("divided")){r.add(O.D);i.next();}else if(c.indexOf("-")!=-1){String[] num=c.split("-");r.add(N.f(num[0]).v+N.f(num[1]).v);}else{Object o=N.f(c);r.add(o!=null?((N)o).v:O.f(c));}}return r;}String p(double n){String a=String.valueOf(n),w,d=null,b="";l=a.indexOf(".");if(l!=-1){w=a.substring(0,l);d=a.substring(l+1);}else w=a;if(d.equals("0"))d=null;D=0;while(w.length()%3!=0)w=" "+w;for(i=w.length();i>0;i-=3,D++)b=w(w.substring(i-3,i))+b;return b+d(d);}String w(String w) {if(w==null)return "";w=w.trim();String b="";l=w.length();if(l>1&&w.charAt(l-2)!='0'){if(w.charAt(l-2)=='1')b=N.d(q(w.substring(l-2))).t;else b+=N.d(q(w.charAt(l-2)+"0")).t+"-"+N.f(w.charAt(l-1)).t;}for(j=(b.equals("")?l-1:l-3);j>-1;j--){N n=N.f(w.charAt(j));if(n==N.A)continue;if(j==l-1)b=n.t;else if(j==l-2)b=N.f(n.t+"0")+"-"+b;else if(j==l-3)b=n.t+" hundred "+b;}if(!b.trim().equals("")){if(D==1)b+=" thousand ";if(D==2)b+=" million ";if(D==3)b+=" billion ";}return b;}String d(String d) {if(d==null)return"";if(d.length()>3)d=d.substring(0,3);String b = " point ";for(char n:d.toCharArray())b+=N.f(n).t+" ";return b;}boolean o(Object o){return o instanceof O;}Double d(Object o){return (Double)o;}static double q(String s){return Double.parseDouble(s);}}
Con saltos de línea y pestañas
import java.util.*;
class a{
int D=0,i,l,j;
static boolean T=true,F=false;
enum O{
A("plus"),
S("minus"),
M("times"),
D(""),
P("point");
String t;
O(String u){
t=u;
}
double p(double f,double s){
if(this==A)f+=s;
if(this==S)f-=s;
if(this==M)f*=s;
if(this==D)f/=s;
return f;
}
static O f(String s){
O r=null;
for(O o:values())if(s.equals(o.t))r=o;
return r;
}
}
enum N{
A("zero",0,F),
B("one",1,F),
C("two",2,F),
D("three",3,F),
E("four",4,F),
AG("five",5,F),
G("six",6,F),
H("seven",7,F),
I("eight",8,F),
J("nine",9,F),
K("ten",10,F),
L("eleven",11,F),
M("twelve",12,F),
N("thirteen",13,F),
O("fourteen",14,F),
P("fifteen",15,F),
Q("sixteen",16,F),
R("seventeen",17,F),
S("eighteen",18,F),
AH("nineteen",19,F),
U("twenty",20,F),
V("thirty",30,F),
W("forty",40,F),
X("fifty",50,F),
Y("sixty",60,F),
Z("seventy",70,F),
AA("eighty",80,F),
AB("ninety",90,F),
AC("hundred",100,T),
AD("thousand",1000,T),
AE("million",1000000,T),
AF("billion",1000000000,T);
String t;
double v;
boolean q;
N(String u,int w,boolean r){
t=u;
v=w;
q=r;
}
static N f(String s){
N r=null;
for(N n:values())if(s.equals(n.t))r=n;
return r;
}
static N f(char s){
return d(q(""+s));
}
static N d(double v){
N r=null;
for(N n:values())if(v==n.v)r=n;
return r;
}
static String c(double n){
return d(n).t;
}
}
public static void main(String[]a){
new a();
}
a(){
while(T){
try{
List p=p(new Scanner(System.in).nextLine()),t=new ArrayList();
double d=0;
for(j=0;j<p.size();j++){
Object o=p.get(j);
if(o(o)){
if((O)o==O.P){
t.add((d(t.get(t.size()-1))+((d=d(p.get(j+1)))<10?d*=100:d<100?d*=10:d)/1000));
t.remove(t.size()-2);
j++;
}
else t.add(o);
}
else {
N n=N.d(d(o));
if(n!=null&&n.q){
t.add((d(o))*d(t.get(t.size()-1)));
t.remove(t.size()-2);
}
else t.add(o);
}
}
double r=d(t.get(0));
for(j=1;j<t.size();j++){
Object c=t.get(j),l=t.get(j-1);
if(o(c))continue;
if(c instanceof Double&&l instanceof Double)r+=d(c);
else r=((O)t.get(j-1)).p(r,d(t.get(j)));
}
System.out.println(p(r));
}
catch(Exception e){
System.out.println("E");
}
}
}
List p(String s) {
List r=new ArrayList();
Scanner i=new Scanner(s);
while(i.hasNext()){
String c=i.next();
if(c.equals("divided")){
r.add(O.D);
i.next();
}
else if(c.indexOf("-")!=-1){
String[] num=c.split("-");
r.add(N.f(num[0]).v+N.f(num[1]).v);
}
else{
Object o=N.f(c);
r.add(o!=null?((N)o).v:O.f(c));
}
}
return r;
}
String p(double n){
String a=String.valueOf(n),w,d=null,b="";
l=a.indexOf(".");
if(l!=-1){
w=a.substring(0,l);
d=a.substring(l+1);
}
else w=a;
if(d.equals("0"))d=null;
D=0;
while(w.length()%3!=0)w=" "+w;
for(i=w.length();i>0;i-=3,D++)b=w(w.substring(i-3,i))+b;
return b+d(d);
}
String w(String w) {
if(w==null)return "";
w=w.trim();
String b="";
l=w.length();
if(l>1&&w.charAt(l-2)!='0'){
if(w.charAt(l-2)=='1')b=N.d(q(w.substring(l-2))).t;
else b+=N.d(q(w.charAt(l-2)+"0")).t+"-"+N.f(w.charAt(l-1)).t;
}
for(j=(b.equals("")?l-1:l-3);j>-1;j--){
N n=N.f(w.charAt(j));
if(n==N.A)continue;
if(j==l-1)b=n.t;
else if(j==l-2)b=N.f(n.t+"0")+"-"+b;
else if(j==l-3)b=n.t+" hundred "+b;
}
if(!b.trim().equals("")){
if(D==1)b+=" thousand ";
if(D==2)b+=" million ";
if(D==3)b+=" billion ";
}
return b;
}
String d(String d) {
if(d==null)return"";
if(d.length()>3)d=d.substring(0,3);
String b = " point ";
for(char n:d.toCharArray())b+=N.f(n).t+" ";
return b;
}
boolean o(Object o){
return o instanceof O;
}
Double d(Object o){
return (Double)o;
}
static double q(String s){
return Double.parseDouble(s);
}
}
two plus two minus five times five divided by negative zero point five->2 + 2 - 5 * 5 / -0.5->54.