WeixiangYan/CodeTransOcean huggingface dataset:
Task: Longest string challenge




Go: package main

import (
    "bufio"
    "os"
)

func main() {
    in := bufio.NewReader(os.Stdin)
    var blankLine = "\n"
    var printLongest func(string) string
    printLongest = func(candidate string) (longest string) {
        longest = candidate
        s, err := in.ReadString('\n')
        defer func() {
            recover()
            defer func() {
                recover()
            }()
            _ = blankLine[0]
            func() {
                defer func() {
                    recover()
                }()
                _ = s[len(longest)]
                longest = s
            }()
            longest = printLongest(longest)
            func() {
                defer func() {
                    recover()
                    os.Stdout.WriteString(s)
                }()
                _ = longest[len(s)]
                s = ""
            }()
        }()
        _ = err.(error)
        os.Stdout.WriteString(blankLine)
        blankLine = ""
        return
    }
    printLongest("")
}


Java: import java.io.File;
import java.util.Scanner;

public class LongestStringChallenge {

    public static void main(String[] args) throws Exception {
        String lines = "", longest = "";
        try (Scanner sc = new Scanner(new File("lines.txt"))) {
            while(sc.hasNext()) {
                String line = sc.nextLine();
                if (longer(longest, line))
                    lines = longest = line;
                else if (!longer(line, longest))
                    lines = lines.concat("\n").concat(line);
            }
        }
        System.out.println(lines);
    }

    static boolean longer(String a, String b) {
        try {
            String dummy = a.substring(b.length());
        } catch (StringIndexOutOfBoundsException e) {
            return true;
        }
        return false;
    }
}
Task: Create a file




Go: package main

import (
    "fmt"
    "os"
)

func createFile(fn string) {
    f, err := os.Create(fn)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println("file", fn, "created!")
    f.Close()
}

func createDir(dn string) {
    err := os.Mkdir(dn, 0666)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println("directory", dn, "created!")
}

func main() {
    createFile("input.txt")
    createFile("/input.txt")
    createDir("docs")
    createDir("/docs")
}


Java: import java.io.*;
public class CreateFileTest {
	public static void main(String args[]) {
		try {
			new File("output.txt").createNewFile();
			new File(File.separator + "output.txt").createNewFile();
			new File("docs").mkdir();
			new File(File.separator + "docs").mkdir();
		} catch (IOException e) {
			System.err.println(e.getMessage());
		}
	}
}
Task: Tau function




Go: package main

import "fmt"

func countDivisors(n int) int {
    count := 0
    i := 1
    k := 2
    if n%2 == 0 {
        k = 1
    }
    for i*i <= n {
        if n%i == 0 {
            count++
            j := n / i
            if j != i {
                count++
            }
        }
        i += k
    }
    return count
}

func main() {
    fmt.Println("The tau functions for the first 100 positive integers are:")
    for i := 1; i <= 100; i++ {
        fmt.Printf("%2d  ", countDivisors(i))
        if i%20 == 0 {
            fmt.Println()
        }
    }
}


Java: public class TauFunction {
    private static long divisorCount(long n) {
        long total = 1;
        
        for (; (n & 1) == 0; n >>= 1) {
            ++total;
        }
        
        for (long p = 3; p * p <= n; p += 2) {
            long count = 1;
            for (; n % p == 0; n /= p) {
                ++count;
            }
            total *= count;
        }
        
        if (n > 1) {
            total *= 2;
        }
        return total;
    }

    public static void main(String[] args) {
        final int limit = 100;
        System.out.printf("Count of divisors for the first %d positive integers:\n", limit);
        for (long n = 1; n <= limit; ++n) {
            System.out.printf("%3d", divisorCount(n));
            if (n % 20 == 0) {
                System.out.println();
            }
        }
    }
}
Task: Sequence of primorial primes




Go: package main
  
import (
    "fmt"
    "math/big"
)

func main() {
    one := big.NewInt(1)
    pm := big.NewInt(1) 
    var px, nx int
    var pb big.Int 
    primes(4000, func(p int64) bool {
        pm.Mul(pm, pb.SetInt64(p))
        px++
        if pb.Add(pm, one).ProbablyPrime(0) ||
            pb.Sub(pm, one).ProbablyPrime(0) {
            fmt.Print(px, " ")
            nx++
            if nx == 20 {
                fmt.Println()
                return false
            }
        }
        return true
    })
}




func primes(limit int, f func(int64) bool) {
    c := make([]bool, limit)
    c[0] = true
    c[1] = true
    lm := int64(limit)
    p := int64(2)
    for {
        f(p)
        p2 := p * p
        if p2 >= lm {
            break
        }
        for i := p2; i < lm; i += p {
            c[i] = true
        }
        for {
            p++
            if !c[p] {
                break
            }
        }
    }
    for p++; p < lm; p++ {
        if !c[p] && !f(p) {
            break
        }
    }
}


Java: import java.math.BigInteger;

public class PrimorialPrimes {

    final static int sieveLimit = 1550_000;
    static boolean[] notPrime = sieve(sieveLimit);

    public static void main(String[] args) {

        int count = 0;
        for (int i = 1; i < 1000_000 && count < 20; i++) {
            BigInteger b = primorial(i);
            if (b.add(BigInteger.ONE).isProbablePrime(1)
                    || b.subtract(BigInteger.ONE).isProbablePrime(1)) {
                System.out.printf("%d ", i);
                count++;
            }
        }
    }

    static BigInteger primorial(int n) {
        if (n == 0)
            return BigInteger.ONE;

        BigInteger result = BigInteger.ONE;
        for (int i = 0; i < sieveLimit && n > 0; i++) {
            if (notPrime[i])
                continue;
            result = result.multiply(BigInteger.valueOf(i));
            n--;
        }
        return result;
    }

    public static boolean[] sieve(int limit) {
        boolean[] composite = new boolean[limit];
        composite[0] = composite[1] = true;

        int max = (int) Math.sqrt(limit);
        for (int n = 2; n <= max; n++) {
            if (!composite[n]) {
                for (int k = n * n; k < limit; k += n) {
                    composite[k] = true;
                }
            }
        }
        return composite;
    }
}
Task: Bioinformatics_base count




Go: package main

import (
    "fmt"
    "sort"
)

func main() {
    dna := "" +
        "CGTAAAAAATTACAACGTCCTTTGGCTATCTCTTAAACTCCTGCTAAATG" +
        "CTCGTGCTTTCCAATTATGTAAGCGTTCCGAGACGGGGTGGTCGATTCTG" +
        "AGGACAAAGGTCAAGATGGAGCGCATCGAACGCAATAAGGATCATTTGAT" +
        "GGGACGTTTCGTCGACAAAGTCTTGTTTCGAGAGTAACGGCTACCGTCTT" +
        "CGATTCTGCTTATAACACTATGTTCTTATGAAATGGATGTTCTGAGTTGG" +
        "TCAGTCCCAATGTGCGGGGTTTCTTTTAGTACGTCGGGAGTGGTATTATA" +
        "TTTAATTTTTCTATATAGCGATCTGTATTTAAGCAATTCATTTAGGTTAT" +
        "CGCCGCGATGCTCGGTTCGGACCGCCAAGCATCTGGCTCCACTGCTAGTG" +
        "TCCTAAATTTGAATGGCAAACACAAATAAGATTTAGCAATTCGTGTAGAC" +
        "GACCGGGGACTTGCATGATGGGAGCAGCTTTGTTAAACTACGAACGTAAT"

    fmt.Println("SEQUENCE:")
    le := len(dna)
    for i := 0; i < le; i += 50 {
        k := i + 50
        if k > le {
            k = le
        }
        fmt.Printf("%5d: %s\n", i, dna[i:k])
    }
    baseMap := make(map[byte]int) 
    for i := 0; i < le; i++ {
        baseMap[dna[i]]++
    }
    var bases []byte
    for k := range baseMap {
        bases = append(bases, k)
    }
    sort.Slice(bases, func(i, j int) bool { 
        return bases[i] < bases[j]
    })

    fmt.Println("\nBASE COUNT:")
    for _, base := range bases {
        fmt.Printf("    %c: %3d\n", base, baseMap[base])
    }
    fmt.Println("    ------")
    fmt.Println("    Σ:", le)
    fmt.Println("    ======")
}


Java: import java.util.HashMap;
import java.util.Map;

public class orderedSequence {
    public static void main(String[] args) {
        Sequence gene = new Sequence("CGTAAAAAATTACAACGTCCTTTGGCTATCTCTTAAACTCCTGCTAAATGCTCGTGCTTTCCAATTATGTAAGCGTTCCGAGACGGGGTGGTCGATTCTGAGGACAAAGGTCAAGATGGAGCGCATCGAACGCAATAAGGATCATTTGATGGGACGTTTCGTCGACAAAGTCTTGTTTCGAGAGTAACGGCTACCGTCTTCGATTCTGCTTATAACACTATGTTCTTATGAAATGGATGTTCTGAGTTGGTCAGTCCCAATGTGCGGGGTTTCTTTTAGTACGTCGGGAGTGGTATTATATTTAATTTTTCTATATAGCGATCTGTATTTAAGCAATTCATTTAGGTTATCGCCGCGATGCTCGGTTCGGACCGCCAAGCATCTGGCTCCACTGCTAGTGTCCTAAATTTGAATGGCAAACACAAATAAGATTTAGCAATTCGTGTAGACGACCGGGGACTTGCATGATGGGAGCAGCTTTGTTAAACTACGAACGTAAT");
        gene.runSequence();
    }
}


public class Sequence {
    
    private final String seq;
    
    public Sequence(String sq) {
        this.seq = sq;
    }
    
    
    public void prettyPrint() {
        System.out.println("Sequence:");
        int i = 0;
        for ( ; i < seq.length() - 50 ; i += 50) {
            System.out.printf("%5s : %s\n", i + 50, seq.substring(i, i + 50));
        }
        System.out.printf("%5s : %s\n", seq.length(), seq.substring(i));
    }
    
    
    public void displayCount() {
        Map<Character, Integer> counter = new HashMap<>();
        for (int i = 0 ; i < seq.length() ; ++i) {
            counter.merge(seq.charAt(i), 1, Integer::sum);
        }

        System.out.println("Base vs. Count:");
        counter.forEach(
            key, value -> System.out.printf("%5s : %s\n", key, value));
        System.out.printf("%5s: %s\n", "SUM", seq.length());
    }
    
    public void runSequence() {
        this.prettyPrint();
        this.displayCount();
    }
}
Task: Factorions




Go: package main

import (
    "fmt"
    "strconv"
)

func main() {
    
    var fact [12]uint64
    fact[0] = 1
    for n := uint64(1); n < 12; n++ {
        fact[n] = fact[n-1] * n
    }

    for b := 9; b <= 12; b++ {
        fmt.Printf("The factorions for base %d are:\n", b)
        for i := uint64(1); i < 1500000; i++ {
            digits := strconv.FormatUint(i, b)
            sum := uint64(0)
            for _, digit := range digits {
                if digit < 'a' {
                    sum += fact[digit-'0']
                } else {
                    sum += fact[digit+10-'a']
                }
            }
            if sum == i {
                fmt.Printf("%d ", i)
            }
        }
        fmt.Println("\n")
    }
}


Java: public class Factorion {
    public static void main(String [] args){
        System.out.println("Base 9:");
        for(int i = 1; i <= 1499999; i++){
            String iStri = String.valueOf(i);
            int multiplied = operate(iStri,9);
            if(multiplied == i){
                System.out.print(i + "\t");
            }
        }
        System.out.println("\nBase 10:");
        for(int i = 1; i <= 1499999; i++){
            String iStri = String.valueOf(i);
            int multiplied = operate(iStri,10);
            if(multiplied == i){
                System.out.print(i + "\t");
            }
        }
        System.out.println("\nBase 11:");
        for(int i = 1; i <= 1499999; i++){
            String iStri = String.valueOf(i);
            int multiplied = operate(iStri,11);
            if(multiplied == i){
                System.out.print(i + "\t");
            }
        }
        System.out.println("\nBase 12:");
        for(int i = 1; i <= 1499999; i++){
            String iStri = String.valueOf(i);
            int multiplied = operate(iStri,12);
            if(multiplied == i){
                System.out.print(i + "\t");
            }
        }
    }
    public static int factorialRec(int n){
        int result = 1;
        return n == 0 ? result : result * n * factorialRec(n-1);
    }

    public static int operate(String s, int base){
        int sum = 0;
        String strx = fromDeci(base, Integer.parseInt(s));
        for(int i = 0; i < strx.length(); i++){
            if(strx.charAt(i) == 'A'){
                sum += factorialRec(10);
            }else if(strx.charAt(i) == 'B') {
                sum += factorialRec(11);
            }else if(strx.charAt(i) == 'C') {
                sum += factorialRec(12);
            }else {
                sum += factorialRec(Integer.parseInt(String.valueOf(strx.charAt(i)), base));
            }
        }
        return sum;
    }
    
    static char reVal(int num) {
        if (num >= 0 && num <= 9)
            return (char)(num + 48);
        else
            return (char)(num - 10 + 65);
    }
    static String fromDeci(int base, int num){
        StringBuilder s = new StringBuilder();
        while (num > 0) {
            s.append(reVal(num % base));
            num /= base;
        }
        return new String(new StringBuilder(s).reverse());
    }
}
Task: Additive primes




Go: package main

import "fmt"

func isPrime(n int) bool {
    switch {
    case n < 2:
        return false
    case n%2 == 0:
        return n == 2
    case n%3 == 0:
        return n == 3
    default:
        d := 5
        for d*d <= n {
            if n%d == 0 {
                return false
            }
            d += 2
            if n%d == 0 {
                return false
            }
            d += 4
        }
        return true
    }
}

func sumDigits(n int) int {
    sum := 0
    for n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

func main() {
    fmt.Println("Additive primes less than 500:")
    i := 2
    count := 0
    for {
        if isPrime(i) && isPrime(sumDigits(i)) {
            count++
            fmt.Printf("%3d  ", i)
            if count%10 == 0 {
                fmt.Println()
            }
        }
        if i > 2 {
            i += 2
        } else {
            i++
        }
        if i > 499 {
            break
        }
    }
    fmt.Printf("\n\n%d additive primes found.\n", count)
}


Java: public class additivePrimes {

    public static void main(String[] args) {
        int additive_primes = 0;
        for (int i = 2; i < 500; i++) {
            if(isPrime(i) && isPrime(digitSum(i))){
                additive_primes++;
                System.out.print(i + " ");
            }
        }
        System.out.print("\nFound " + additive_primes + " additive primes less than 500");
    }

    static boolean isPrime(int n) {
        int counter = 1;
        if (n < 2 || (n != 2 && n % 2 == 0) || (n != 3 && n % 3 == 0)) {
            return false;
        }
        while (counter * 6 - 1 <= Math.sqrt(n)) {
            if (n % (counter * 6 - 1) == 0 || n % (counter * 6 + 1) == 0) {
                return false;
            } else {
                counter++;
            }
        }
        return true;
    }

    static int digitSum(int n) {
        int sum = 0;
        while (n > 0) {
            sum += n % 10;
            n /= 10;
        }
        return sum;
    }
}
Task: Perfect totient numbers




Go: package main

import "fmt"

func gcd(n, k int) int {
    if n < k || k < 1 {
        panic("Need n >= k and k >= 1")
    }

    s := 1
    for n&1 == 0 && k&1 == 0 {
        n >>= 1
        k >>= 1
        s <<= 1
    }

    t := n
    if n&1 != 0 {
        t = -k
    }
    for t != 0 {
        for t&1 == 0 {
            t >>= 1
        }
        if t > 0 {
            n = t
        } else {
            k = -t
        }
        t = n - k
    }
    return n * s
}

func totient(n int) int {
    tot := 0
    for k := 1; k <= n; k++ {
        if gcd(n, k) == 1 {
            tot++
        }
    }
    return tot
}

func main() {
    var perfect []int
    for n := 1; len(perfect) < 20; n += 2 {
        tot := n
        sum := 0
        for tot != 1 {
            tot = totient(tot)
            sum += tot
        }
        if sum == n {
            perfect = append(perfect, n)
        }
    }
    fmt.Println("The first 20 perfect totient numbers are:")
    fmt.Println(perfect)
}


Java: import java.util.ArrayList;
import java.util.List;

public class PerfectTotientNumbers {

    public static void main(String[] args) {
        computePhi();
        int n = 20;
        System.out.printf("The first %d perfect totient numbers:%n%s%n", n, perfectTotient(n));
    }
    
    private static final List<Integer> perfectTotient(int n) {
        int test = 2;
        List<Integer> results = new ArrayList<Integer>();
        for ( int i = 0 ; i < n ; test++ ) {
            int phiLoop = test;
            int sum = 0;
            do {
                phiLoop = phi[phiLoop];
                sum += phiLoop;
            } while ( phiLoop > 1);
            if ( sum == test ) {
                i++;
                results.add(test);
            }
        }
        return results;
    }

    private static final int max = 100000;
    private static final int[] phi = new int[max+1];

    private static final void computePhi() {
        for ( int i = 1 ; i <= max ; i++ ) {
            phi[i] = i;
        }
        for ( int i = 2 ; i <= max ; i++ ) {
            if (phi[i] < i) continue;
            for ( int j = i ; j <= max ; j += i ) {
                phi[j] -= phi[j] / i;
            }
        }
    }

}
Task: Delegates




Go: package main
import "fmt"

type Delegator struct {
    delegate interface{} 
}


type Thingable interface {
    thing() string
}

func (self Delegator) operation() string {
    if v, ok := self.delegate.(Thingable); ok {
        return v.thing()
    }
    return "default implementation"
}

type Delegate int 

func (Delegate) thing() string {
    return "delegate implementation"
}

func main() {
    
    a := Delegator{}
    fmt.Println(a.operation()) 

    
    a.delegate = "A delegate may be any object"
    fmt.Println(a.operation()) 

    
    var d Delegate
    a.delegate = d
    fmt.Println(a.operation()) 
}


Java: interface Thingable {
    String thing();
}

class Delegator {
    public Thingable delegate;

    public String operation() {
        if (delegate == null)
            return "default implementation";
        else
            return delegate.thing();
    }
}

class Delegate implements Thingable {
    public String thing() {
        return "delegate implementation";
    }
}



public class DelegateExample {
    public static void main(String[] args) {
        
        Delegator a = new Delegator();
        assert a.operation().equals("default implementation");

        
        Delegate d = new Delegate();
        a.delegate = d;
        assert a.operation().equals("delegate implementation");

        
        a.delegate = new Thingable() {
                public String thing() {
                    return "anonymous delegate implementation";
                }
            };
        assert a.operation().equals("anonymous delegate implementation");
    }
}
Task: Sum of divisors




Go: package main

import "fmt"

func sumDivisors(n int) int {
    sum := 0
    i := 1
    k := 2
    if n%2 == 0 {
        k = 1
    }
    for i*i <= n {
        if n%i == 0 {
            sum += i
            j := n / i
            if j != i {
                sum += j
            }
        }
        i += k
    }
    return sum
}

func main() {
    fmt.Println("The sums of positive divisors for the first 100 positive integers are:")
    for i := 1; i <= 100; i++ {
        fmt.Printf("%3d   ", sumDivisors(i))
        if i%10 == 0 {
            fmt.Println()
        }
    }
}


Java: public class DivisorSum {
    private static long divisorSum(long n) {
        var total = 1L;
        var power = 2L;
        
        for (; (n & 1) == 0; power <<= 1, n >>= 1) {
            total += power;
        }
        
        for (long p = 3; p * p <= n; p += 2) {
            long sum = 1;
            for (power = p; n % p == 0; power *= p, n /= p) {
                sum += power;
            }
            total *= sum;
        }
        
        if (n > 1) {
            total *= n + 1;
        }
        return total;
    }

    public static void main(String[] args) {
        final long limit = 100;
        System.out.printf("Sum of divisors for the first %d positive integers:%n", limit);
        for (long n = 1; n <= limit; ++n) {
            System.out.printf("%4d", divisorSum(n));
            if (n % 10 == 0) {
                System.out.println();
            }
        }
    }
}
Task: Enforced immutability




Go: package main

func main() {
    s := "immutable"
    s[0] = 'a'
}


Java: final int immutableInt = 4;
int mutableInt = 4;
mutableInt = 6; 
immutableInt = 6;
Task: Spiral matrix




Go: package main

import (
    "fmt"
    "strconv"
)

var n = 5

func main() {
    if n < 1 {
        return
    }
    top, left, bottom, right := 0, 0, n-1, n-1
    sz := n * n
    a := make([]int, sz)
    i := 0
    for left < right {
        
        for c := left; c <= right; c++ {
            a[top*n+c] = i
            i++
        }
        top++
        
        for r := top; r <= bottom; r++ {
            a[r*n+right] = i
            i++
        }
        right--
        if top == bottom {
            break
        }
        
        for c := right; c >= left; c-- {
            a[bottom*n+c] = i
            i++
        }
        bottom--
        
        for r := bottom; r >= top; r-- {
            a[r*n+left] = i
            i++
        }
        left++
    }
    
    a[top*n+left] = i

    
    w := len(strconv.Itoa(n*n - 1))
    for i, e := range a {
        fmt.Printf("%*d ", w, e)
        if i%n == n-1 {
            fmt.Println("")
        }
    }
}


Java: public class Blah {

  public static void main(String[] args) {
    print2dArray(getSpiralArray(5));
  }

  public static int[][] getSpiralArray(int dimension) {
    int[][] spiralArray = new int[dimension][dimension];

    int numConcentricSquares = (int) Math.ceil((dimension) / 2.0);

    int j;
    int sideLen = dimension;
    int currNum = 0;

    for (int i = 0; i < numConcentricSquares; i++) {
      
      for (j = 0; j < sideLen; j++) {
        spiralArray[i][i + j] = currNum++;
      }

      
      for (j = 1; j < sideLen; j++) {
        spiralArray[i + j][dimension - 1 - i] = currNum++;
      }

      
      for (j = sideLen - 2; j > -1; j--) {
        spiralArray[dimension - 1 - i][i + j] = currNum++;
      }

      
      for (j = sideLen - 2; j > 0; j--) {
        spiralArray[i + j][i] = currNum++;
      }

      sideLen -= 2;
    }

    return spiralArray;
  }

  public static void print2dArray(int[][] array) {
    for (int[] row : array) {
      for (int elem : row) {
        System.out.printf("%3d", elem);
      }
      System.out.println();
    }
  }
}
Task: Optional parameters




Go: type cell string

type spec struct {
    less     func(cell, cell) bool
    column   int
    reverse  bool
}

func newSpec() (s spec) {
    
    return
}


t.sort(newSpec())


s := newSpec
s.reverse = true
t.sort(s)


Java: module OptionalParameters
    {
    typedef Type<String  >.Orderer as ColumnOrderer;
    typedef Type<String[]>.Orderer as RowOrderer;

    static String[][] sort(String[][]     table,
                           ColumnOrderer? orderer = Null,
                           Int            column  = 0,
                           Boolean        reverse = False,
                          )
        {
        
        orderer ?:= (s1, s2) -> s1 <=> s2;

        
        ColumnOrderer byString = reverse
                ? ((s1, s2) -> orderer(s1, s2).reversed)
                : orderer;

        
        RowOrderer byColumn = (row1, row2) -> byString(row1[column], row2[column]);

        return table.sorted(byColumn);
        }

    void run()
        {
        String[][] table =
            [
            ["c", "x", "i"],
            ["a", "y", "p"],
            ["b", "z", "a"],
            ];

        show("original input", table);
        show("by default sort on column 0", sort(table));
        show("by column 2", sort(table, column=2));
        show("by column 2 reversed", sort(table, column=2, reverse=True));
        }

    void show(String title, String[][] table)
        {
        @Inject Console console;
        console.print($"{title}:");
        for (val row : table)
            {
            console.print($"  {row}");
            }
        console.print();
        }
    }