有人能在Codeforces编程竞赛中发布一个程序模板来提交Java解决方案吗?

有人能在Codeforces编程竞赛中发布一个程序模板来提交Java解决方案吗?,java,Java,是的,我想开始编程竞赛,所以我不知道如何用Java提交 非常感谢你的回答 再见我不知道CF,但你可以在SPOJ试试。看一看例子看一看,你可能会在这里找到答案: Java语法: import java.util.*; public class Prime { public static void main(String args[]) { int i; Scanner in = new Scanner(System.in); i = in.nextInt();

是的,我想开始编程竞赛,所以我不知道如何用Java提交

非常感谢你的回答


再见

我不知道CF,但你可以在SPOJ试试。看一看例子

看一看,你可能会在这里找到答案:

Java语法

import java.util.*;

public class Prime {
public static void main(String args[]) {
    int i;
    Scanner in = new Scanner(System.in);
    i = in.nextInt();
    /* Take input from standard input */
    if (isprime(i)) {
        System.out.println("YES");
        /*
         * Print outp ut on standard output
         */
    } else {
        System.out.println("NO");
        /* Print output on standard output */
    }
}

public static boolean isprime(int a) {
    for (int i = 2; i < a; i++) {
        if (a % i == 0)
            return false;
    }
    return true;
}
}
import java.util.*;
公共类素数{
公共静态void main(字符串参数[]){
int i;
扫描仪输入=新扫描仪(系统输入);
i=in.nextInt();
/*从标准输入中获取输入*/
如果(i){
System.out.println(“是”);
/*
*在标准输出上打印输出
*/
}否则{
系统输出打印项次(“否”);
/*在标准输出上打印输出*/
}
}
公共静态布尔iPrime(int a){
for(int i=2;i
我参加过很多比赛:

/** @team=civilian */
import java.io.*;
import java.math.*;
import java.util.*;

public class _template {
    static BufferedReader input;
    static StringTokenizer _stk;

    static String readln() throws IOException {
        String l = input.readLine();
        if (l != null)
            _stk = new StringTokenizer(l, " ");
        return l;
    }

    static String next() {
        return _stk.nextToken();
    }

    static int nextInt() {
        return Integer.parseInt(next());
    }

    static void dbg(Object... o) {
        System.out.println(Arrays.deepToString(o));
    }

    static PrintWriter output = new PrintWriter(new BufferedWriter(
            new OutputStreamWriter(System.out)));

    public static void main(String[] args) throws IOException {
        Locale.setDefault(Locale.US);
        input = new BufferedReader(new InputStreamReader(System.in));
        // input = new BufferedReader(new FileReader("_template"));
        // output.print("ja");
        // output.close();// Be sure to close the output at the end 
                        //or maybe he does not print everything.
    }
}
有些人认为最好用c++编写:

//
#include <bits/stdc++.h>

#define D(x) cout << #x << " = " << (x) << endl;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define FOREACH(it,v) for(__typeof((v).begin()) it=(v).begin(); it!=(v).end(); ++it)
#define ALL(v) (v).begin(), (v).end()

using namespace std;

typedef long long int64;

const int INF = (int)(1e9);
const int64 INFLL = (int64)(1e18);
const double EPS = 1e-13;

int main() {
#ifdef LOCAL
    freopen(".in.txt", "r", stdin);
    freopen(".out.txt", "w", stdout);
#else
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
#endif

}
您可以这样运行它:

$ bash createfiles.sh uva12520
# you program an awesome solution
# and you test it
$ bash compile_ccp.sh uva12520.cpp
我认为最好在你的.bash中创建一个别名 别名compile_cpp_maraton='function fun(){bash/path/my_commands/compile_cpp_maraton.sh“$1”;};乐趣


抱歉发了这么长的帖子。

这是FlatFoot Codeforces用户博客中提到的模板

import java.io.IOException;
导入java.io.InputStream;
导入java.math.biginger;
导入java.util.array;
导入java.util.InputMismatchException;
导入java.io.Writer;
导入java.io.BufferedWriter;
导入java.io.OutputStreamWriter;
导入java.io.OutputStream;
导入java.io.PrintWriter;
/**
*作者:o_panda_o
*电邮:emailofpanda@yahoo.com
*/
公共班机{
静态类问题求解器{
public void解决问题(输入reader in,输出writer out){
/**
*该模板被许多编码器用于快速IO
*
*这部分是我们使用的主要方法。我们需要编写的所有代码。。。
*…可以写在这里,甚至不涉及主方法。
*
*以下是IO的示例,有关更多信息,请查看。。。
*…在类InputReader(用于快速输入)和OutputWriter(用于快速。。。
*…输出)。那里的方法是不言自明的
*/
/**
*如何获取输入:
*-获取输入几乎与我们在Java中使用scanner获取输入的方式相似。
*例如,int n=in.nextInt();long n=in.nextLong();
*/
/**
*如何打印输出:
*-就像我们使用PrintWriter一样。我们不使用System.out,而是可以。。。
*…只能在那个地方使用。
*-例如out.print()、out.println()等。
*/
}
//您也可以在这里添加必要的方法
//公共整数相加(整数a、整数b){
//返回a+b;
//}
}
//下面的所有内容都是每个代码的模板,大多数时候不需要更改它们。
//当你继续编码的时候,在需要的时候你会意识到你需要改变什么。相信我。
公共静态void main(字符串[]args){
InputStream InputStream=System.in;
OutputStream OutputStream=System.out;
InputReader in=新的InputReader(inputStream);
OutputWriter out=新的OutputWriter(outputStream);
ProblemSolver ProblemSolver=新的ProblemSolver();
解决问题。解决问题(输入、输出);
out.flush();
out.close();
}
}
类输入读取器{
private boolean finished=false;
私有输入流;
专用字节[]buf=新字节[1024];
私有int curChar;
私有国际货币基金组织;
专用空分滤波器;
公共输入读取器(输入流){
this.stream=流;
}
公共int read(){
如果(numChars==-1){
抛出新输入失配异常();
}
如果(curChar>=numChars){
curChar=0;
试一试{
numChars=stream.read(buf);
}捕获(IOE异常){
抛出新输入失配异常();
}
if(numChars=numChars){
curChar=0;
试一试{
numChars=stream.read(buf);
}捕获(IOE异常){
返回-1;
}
if(numChars'9'){
抛出新输入失配异常();
}
res*=10;
res+=c-‘0’;
c=读取();
}而(!isSpaceChar(c));
返回res*sgn;
}
公共长下长(){
int c=read();
while(isSpaceChar(c)){
c=读取();
}
int-sgn=1;
如果(c=='-'){
sgn=-1;
c=读取();
}
长res=0;
做{
如果(c<'0'| c>'9'){
抛出新输入失配异常();
}
res*=10;
res+=c-‘0’;
c=读取();
}而(!isSpaceChar(c));
返回res*sgn;
}
公共字符串nextString(){
int c=read();
while(isSpaceChar(c)){
c=读取();
}
StringBuilder res=新的StringBuilder();
做{
if(字符isValidCodePoint(c)){
第3(c)段;
}
c=读取();
}而(!isSpaceChar(c));
return res.toString();
}
公共布尔值isSpaceChar(int c){
if(过滤器!=null){
返回过滤器isSpaceChar(c);
}
返回空格(c);
}
公共静态布尔值isWhitespace(int c){
返回c=''| c='\n'| c='\r'| c='\t'| c==-1;
}
普里夫
#compile_cpp.sh
function compile_cpp {
    g++ -o "${1::-4}_exe" -DLOCAL "$1"; 
    ./"${1::-4}_exe";  
} 
compile_cpp $1
$ bash createfiles.sh uva12520
# you program an awesome solution
# and you test it
$ bash compile_ccp.sh uva12520.cpp
public class Main{
   public static void main(String[] args) {
      MyScanner sc = new MyScanner();
      out = new PrintWriter(new BufferedOutputStream(System.out));

      // Start writing your solution here. -------------------------------------

      /*
      int n      = sc.nextInt();        // read input as integer
      long k     = sc.nextLong();       // read input as long
      double d   = sc.nextDouble();     // read input as double
      String str = sc.next();           // read input as String
      String s   = sc.nextLine();       // read whole line as String

      int result = 3*n;
      out.println(result);                    // print via PrintWriter
      */

      // Stop writing your solution here. -------------------------------------
      out.close();
   }



   //-----------PrintWriter for faster output---------------------------------
   public static PrintWriter out;

   //-----------MyScanner class for faster input----------
   public static class MyScanner {
      BufferedReader br;
      StringTokenizer st;

      public MyScanner() {
         br = new BufferedReader(new InputStreamReader(System.in));
      }

      String next() {
          while (st == null || !st.hasMoreElements()) {
              try {
                  st = new StringTokenizer(br.readLine());
              } catch (IOException e) {
                  e.printStackTrace();
              }
          }
          return st.nextToken();
      }

      int nextInt() {
          return Integer.parseInt(next());
      }

      long nextLong() {
          return Long.parseLong(next());
      }

      double nextDouble() {
          return Double.parseDouble(next());
      }

      String nextLine(){
          String str = "";
      try {
         str = br.readLine();
      } catch (IOException e) {
         e.printStackTrace();
      }
      return str;
      }

   }
   //--------------------------------------------------------
}
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.io.Writer;
import java.io.BufferedWriter;
import java.io.OutputStreamWriter;
import java.io.OutputStream;
import java.io.PrintWriter;


/**
 * Author: o_panda_o
 * Email: emailofpanda@yahoo.com
 */
public class Main{

    static class ProblemSolver{
        public void solveTheProblem(InputReader in,OutputWriter out){
            /**
             * This template is used by many coders for fast IO
             *
             * This portion acts as the main method we use. Everything we need to code...
             * ...can be written here without even touching the main method.
             *
             * Following are the examples for IO and for more information have a look...
             * ...on the classes InputReader(for Fast Input) and OutputWriter(for Fast...
             * ...Output). The methods there are self explanatory
             */

            /**
             * How to take inputs:
             *  - Taking input is just nearly similar to the way we take input using scanner in Java.
             *  - e.g. int n=in.nextInt(); long n=in.nextLong();
             */

            /**
             * How to print output:
             *  - It is just like we use PrintWriter. Instead of using System.out, we can...
             *  ...only use out in that place.
             *  - e.g. out.print(), out.println() etc.
             */

        }
        //You can add necessary methods here also. Uncomment the code and test it above
        //public int add(int a,int b){
        //    return a+b;
        //}
    }
    //Everything below you see is a template for every code. You don't need to change them most of the time.
    //As you go on coding, in the time of need you will realise what you need to change when. Just trust me on this.
    public static void main(String[] args){
        InputStream inputStream=System.in;
        OutputStream outputStream=System.out;
        InputReader in=new InputReader(inputStream);
        OutputWriter out=new OutputWriter(outputStream);
        ProblemSolver problemSolver=new ProblemSolver();
        problemSolver.solveTheProblem(in,out);
        out.flush();
        out.close();
    }
}

class InputReader {
    private boolean finished = false;

    private InputStream stream;
    private byte[] buf = new byte[1024];
    private int curChar;
    private int numChars;
    private SpaceCharFilter filter;

    public InputReader(InputStream stream) {
        this.stream = stream;
    }

    public int read() {
        if (numChars == -1) {
            throw new InputMismatchException();
        }
        if (curChar >= numChars) {
            curChar = 0;
            try {
                numChars = stream.read(buf);
            } catch (IOException e) {
                throw new InputMismatchException();
            }
            if (numChars <= 0) {
                return -1;
            }
        }
        return buf[curChar++];
    }

    public int peek() {
        if (numChars == -1) {
            return -1;
        }
        if (curChar >= numChars) {
            curChar = 0;
            try {
                numChars = stream.read(buf);
            } catch (IOException e) {
                return -1;
            }
            if (numChars <= 0) {
                return -1;
            }
        }
        return buf[curChar];
    }

    public int nextInt() {
        int c = read();
        while (isSpaceChar(c)) {
            c = read();
        }
        int sgn = 1;
        if (c == '-') {
            sgn = -1;
            c = read();
        }
        int res = 0;
        do {
            if (c < '0' || c > '9') {
                throw new InputMismatchException();
            }
            res *= 10;
            res += c - '0';
            c = read();
        } while (!isSpaceChar(c));
        return res * sgn;
    }

    public long nextLong() {
        int c = read();
        while (isSpaceChar(c)) {
            c = read();
        }
        int sgn = 1;
        if (c == '-') {
            sgn = -1;
            c = read();
        }
        long res = 0;
        do {
            if (c < '0' || c > '9') {
                throw new InputMismatchException();
            }
            res *= 10;
            res += c - '0';
            c = read();
        } while (!isSpaceChar(c));
        return res * sgn;
    }

    public String nextString() {
        int c = read();
        while (isSpaceChar(c)) {
            c = read();
        }
        StringBuilder res = new StringBuilder();
        do {
            if (Character.isValidCodePoint(c)) {
                res.appendCodePoint(c);
            }
            c = read();
        } while (!isSpaceChar(c));
        return res.toString();
    }

    public boolean isSpaceChar(int c) {
        if (filter != null) {
            return filter.isSpaceChar(c);
        }
        return isWhitespace(c);
    }

    public static boolean isWhitespace(int c) {
        return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
    }

    private String readLine0() {
        StringBuilder buf = new StringBuilder();
        int c = read();
        while (c != '\n' && c != -1) {
            if (c != '\r') {
                buf.appendCodePoint(c);
            }
            c = read();
        }
        return buf.toString();
    }

    public String readLine() {
        String s = readLine0();
        while (s.trim().length() == 0) {
            s = readLine0();
        }
        return s;
    }

    public String readLine(boolean ignoreEmptyLines) {
        if (ignoreEmptyLines) {
            return readLine();
        } else {
            return readLine0();
        }
    }

    public BigInteger readBigInteger() {
        try {
            return new BigInteger(nextString());
        } catch (NumberFormatException e) {
            throw new InputMismatchException();
        }
    }

    public char nextCharacter() {
        int c = read();
        while (isSpaceChar(c)) {
            c = read();
        }
        return (char) c;
    }

    public double nextDouble() {
        int c = read();
        while (isSpaceChar(c)) {
            c = read();
        }
        int sgn = 1;
        if (c == '-') {
            sgn = -1;
            c = read();
        }
        double res = 0;
        while (!isSpaceChar(c) && c != '.') {
            if (c == 'e' || c == 'E') {
                return res * Math.pow(10, nextInt());
            }
            if (c < '0' || c > '9') {
                throw new InputMismatchException();
            }
            res *= 10;
            res += c - '0';
            c = read();
        }
        if (c == '.') {
            c = read();
            double m = 1;
            while (!isSpaceChar(c)) {
                if (c == 'e' || c == 'E') {
                    return res * Math.pow(10, nextInt());
                }
                if (c < '0' || c > '9') {
                    throw new InputMismatchException();
                }
                m /= 10;
                res += (c - '0') * m;
                c = read();
            }
        }
        return res * sgn;
    }

    public boolean isExhausted() {
        int value;
        while (isSpaceChar(value = peek()) && value != -1) {
            read();
        }
        return value == -1;
    }

    public String next() {
        return nextString();
    }

    public SpaceCharFilter getFilter() {
        return filter;
    }

    public void setFilter(SpaceCharFilter filter) {
        this.filter = filter;
    }

    public interface SpaceCharFilter {
        public boolean isSpaceChar(int ch);
    }
    public int[] nextIntArray(int n){
        int[] array=new int[n];
        for(int i=0;i<n;++i)array[i]=nextInt();
        return array;
    }
    public int[] nextSortedIntArray(int n){
        int array[]=nextIntArray(n);
        Arrays.sort(array);
        return array;
    }
    public int[] nextSumIntArray(int n){
        int[] array=new int[n];
        array[0]=nextInt();
        for(int i=1;i<n;++i)array[i]=array[i-1]+nextInt();
        return array;
    }
    public long[] nextLongArray(int n){
        long[] array=new long[n];
        for(int i=0;i<n;++i)array[i]=nextLong();
        return array;
    }
    public long[] nextSumLongArray(int n){
        long[] array=new long[n];
        array[0]=nextInt();
        for(int i=1;i<n;++i)array[i]=array[i-1]+nextInt();
        return array;
    }
    public long[] nextSortedLongArray(int n){
        long array[]=nextLongArray(n);
        Arrays.sort(array);
        return array;
    }
}

class OutputWriter {
    private final PrintWriter writer;

    public OutputWriter(OutputStream outputStream) {
        writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(outputStream)));
    }

    public OutputWriter(Writer writer) {
        this.writer = new PrintWriter(writer);
    }

    public void print(char[] array) {
        writer.print(array);
    }

    public void print(Object... objects) {
        for (int i = 0; i < objects.length; i++) {
            if (i != 0) {
                writer.print(' ');
            }
            writer.print(objects[i]);
        }
    }

    public void print(int[] array) {
        for (int i = 0; i < array.length; i++) {
            if (i != 0) {
                writer.print(' ');
            }
            writer.print(array[i]);
        }
    }

    public void print(double[] array) {
        for (int i = 0; i < array.length; i++) {
            if (i != 0) {
                writer.print(' ');
            }
            writer.print(array[i]);
        }
    }

    public void print(long[] array) {
        for (int i = 0; i < array.length; i++) {
            if (i != 0) {
                writer.print(' ');
            }
            writer.print(array[i]);
        }
    }

    public void println(int[] array) {
        print(array);
        writer.println();
    }

    public void println(double[] array) {
        print(array);
        writer.println();
    }

    public void println(long[] array) {
        print(array);
        writer.println();
    }

    public void println() {
        writer.println();
    }

    public void println(Object... objects) {
        print(objects);
        writer.println();
    }

    public void print(char i) {
        writer.print(i);
    }

    public void println(char i) {
        writer.println(i);
    }

    public void println(char[] array) {
        writer.println(array);
    }

    public void printf(String format, Object... objects) {
        writer.printf(format, objects);
    }

    public void close() {
        writer.close();
    }

    public void flush() {
        writer.flush();
    }

    public void print(long i) {
        writer.print(i);
    }

    public void println(long i) {
        writer.println(i);
    }

    public void print(int i) {
        writer.print(i);
    }

    public void println(int i) {
        writer.println(i);
    }

    public void separateLines(int[] array) {
        for (int i : array) {
            println(i);
        }
    }
}