Punto: 4787486 41439404086426 (senza dati generati casualmente)
(Di cui 4085639 provengono da Lenna.png. È il 99,98%)
Non ricevo la parte con i dati casuali. Non ho bisogno di un account che devo pagare per ottenere i dati?
Abbastanza ingenuo. Ecco il codice generato per "1Aa" (49, 65, 97) con una piccola documentazione:
// field 0 and 1 are loop counters.
// The fields 2, 3 and 4 are for "1", "A" and "a"
++++++++++[ // do 10 times
>
++++++++++[ // do 10 times
> // "1" (49) is below 50 so we don't need to do anything here
>+ // When the loops are done, this part will have increased the value of field 3 by 100 (10 * 10 * 1)
>+ // same as above
<<<- // decrease inner loop counter
]
>+++++ // this will add 50 (10 * 5) to field 2, for a total of 50
>---- // subtract 40 from field 3, total of 60
> // Nothing done, value stays at 100
<<<<- // decrease outer loop counter
]
>>-. // subtract 1 from field 2, total now: 49, the value for "1"
>+++++. // add 5 to field 3, makes a total of 65, the value for "A"
>---. // subtract 3 from field 4, total of 97, the value for "a"
Il codice Java è un po 'brutto ma funziona. L'istruzione generata per rapporto di byte di ingresso è probabilmente migliore quanto più alto è il valore medio di byte.
Se vuoi eseguirlo, devi mettere Lenna.png nella stessa directory del file .class. Stampa lo spartito sulla console e scrive il codice BF generato in un file chiamato "output.txt".
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Arrays;
public class BrainFuckGenerator {
public static CharSequence generate(byte[] bytes) {
final StringBuilder brainfuckBuilder = new StringBuilder();
for(int j = 0; j<10; j++)
brainfuckBuilder.append("+");
brainfuckBuilder.append("[>");
for(int j = 0; j<10; j++)
brainfuckBuilder.append("+");
brainfuckBuilder.append("[");
final StringBuilder singles = new StringBuilder();
final StringBuilder tens = new StringBuilder();
final StringBuilder goBack = new StringBuilder();
for(byte b: bytes) {
brainfuckBuilder.append(">");
for(int j=0; j<(b/100); j++) {
brainfuckBuilder.append("+");
}
tens.append(">");
if((b - (b/100)*100)/10 <= 5) {
for(int j=0; j<(b - (b/100)*100)/10; j++) {
tens.append("+");
}
} else {
brainfuckBuilder.append("+");
for(int j=0; j<10 - (b - (b/100)*100)/10; j++) {
tens.append("-");
}
}
singles.append(">");
if(b%10 <= 5) {
for(int j=0; j<b%10; j++) {
singles.append("+");
}
} else {
tens.append("+");
for(int j=0; j<10 - (b%10); j++) {
singles.append("-");
}
}
singles.append(".");
goBack.append("<");
}
goBack.append("-");
brainfuckBuilder
.append(goBack)
.append("]")
.append(tens)
.append("<")
.append(goBack)
.append("]>")
.append(singles);
return brainfuckBuilder;
}
public static void main(String[] args) {
/* Hello, World! */
int score = score("Hello, world!"+((char)0xA));
/* 255 single chars */
int charscore = 0;
for(char c=1; c<=0xff; c++)
charscore += score(String.valueOf(c));
score += Math.round(((double)charscore)/16);
/* Lenna */
final File lenna = new File("Res/Lenna.png");
final byte[] data = new byte[(int)lenna.length()];
int size = 0;
try(FileInputStream input = new FileInputStream(lenna)) {
int i, skipped=0;
while((i = input.read()) != -1)
if(i == 0)
skipped++;
else
data[size++ - skipped] = (byte)(i&0xff);
} catch (IOException e) {
e.printStackTrace();
}
score += score(Arrays.copyOf(data, size), "Lenna");
/* 99 Bottles */
final StringBuilder bottleBuilder = new StringBuilder();
for(int i=99; i>2; i--) {
bottleBuilder
.append(i)
.append(" bottles of beer on the wall, ")
.append(i)
.append(" bottles of beer.")
.append((char) 0xa)
.append("Take one down and pass it around, ")
.append(i-1)
.append(" bottles of beer on the wall.")
.append((char) 0xa)
.append((char) 0xa);
}
bottleBuilder
.append("2 bottles of beer on the wall, 2 bottles of beer.")
.append((char) 0xa)
.append("Take one down and pass it around, 1 bottle of beer on the wall.")
.append((char) 0xa)
.append((char) 0xa)
.append("No more bottles of beer on the wall, no more bottles of beer. ")
.append((char) 0xa)
.append("Go to the store and buy some more, 99 bottles of beer on the wall.");
score(bottleBuilder.toString(), "99 Bottles");
System.out.println("Total score: "+score);
}
private static int score(String s) {
return score(s, null);
}
private static int score(String s, String description) {
final CharSequence bf = generate(s.getBytes());
try(FileWriter writer = new FileWriter("Res/output.txt", true)) {
writer.write((description == null ? s : description));
writer.write(NL);
writer.write("Code:");
writer.write(NL);
writer.write(bf.toString());
writer.write(NL+NL);
} catch (IOException e) {
e.printStackTrace();
}
return bf.length();
}
private static int score(byte[] bytes, String description) {
final CharSequence bf = generate(bytes);
try(FileWriter writer = new FileWriter("Res/output.txt", true)) {
if(description != null) {
writer.write(description);
writer.write(NL);
}
writer.write("Code:");
writer.write(NL);
writer.write(bf.toString());
writer.write(NL+NL);
} catch (IOException e) {
e.printStackTrace();
}
return bf.length();
}
private static final String NL = System.getProperty("line.separator");
}
Farò alcuni piccoli miglioramenti, ma probabilmente non molto. Fatto.