criyle/codenet-compile-errors huggingface dataset:
Language: C++

#incluide <bits/stdc++.h>
using namespace std;

int main() {
  int a, b;
  cin >> a >> b;
  if (a <= 0 && 0 <= b) {
    cout << "Zero" << endl;
  }
  else if (0 < a) {
    cout << "Positive" << endl;
  }
  else if (b < 0) {
    if ((b - a + 1) % 2 == 0) {
      cout << "Positive" << endl;
    }
    else {
      cout << "Negative" << endl;
    }
  }
}


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incluide; did you mean #include?
    1 | #incluide <bits/stdc++.h>
      |  ^~~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >> a >> b;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incluide <bits/stdc++.h>
a.cc:8:5: error: 'cout' was not declared in this scope
    8 |     cout << "Zero" << endl;
      |     ^~~~
a.cc:8:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:8:23: error: 'endl' was not declared in this scope
    8 |     cout << "Zero" << endl;
      |                       ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #incluide <bits/stdc++.h>
a.cc:11:5: error: 'cout' was not declared in this scope
   11 |     cout << "Positive" << endl;
      |     ^~~~
a.cc:11:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:27: error: 'endl' was not declared in this scope
   11 |     cout << "Positive" << endl;
      |                           ^~~~
a.cc:11:27: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:15:7: error: 'cout' was not declared in this scope
   15 |       cout << "Positive" << endl;
      |       ^~~~
a.cc:15:7: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:29: error: 'endl' was not declared in this scope
   15 |       cout << "Positive" << endl;
      |                             ^~~~
a.cc:15:29: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:18:7: error: 'cout' was not declared in this scope
   18 |       cout << "Negative" << endl;
      |       ^~~~
a.cc:18:7: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:18:29: error: 'endl' was not declared in this scope
   18 |       cout << "Negative" << endl;
      |                             ^~~~
a.cc:18:29: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

using System;

class Program
{
    static void Main(string[] args)
    {
        string[] input = Console.ReadLine().Split(' ');
        int a = int.Parse(input[0]);
        int b = int.Parse(input[1]);

        if (a > 0 && b > 0) Console.WriteLine("Positive");
        else if (a < 0 && b < 0)
        {
            if ((a + b) % 2 != 0) Console.WriteLine("Positive");
            else Console.WriteLine("Negative");
        }
        else Console.WriteLine("Zero");
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:5:22: error: 'string' has not been declared
    5 |     static void Main(string[] args)
      |                      ^~~~~~
a.cc:5:31: error: expected ',' or '...' before 'args'
    5 |     static void Main(string[] args)
      |                               ^~~~
a.cc:19:2: error: expected ';' after class definition
   19 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Program::Main(int*)':
a.cc:7:9: error: 'string' was not declared in this scope
    7 |         string[] input = Console.ReadLine().Split(' ');
      |         ^~~~~~
a.cc:7:16: error: expected primary-expression before ']' token
    7 |         string[] input = Console.ReadLine().Split(' ');
      |                ^
a.cc:8:17: error: expected primary-expression before 'int'
    8 |         int a = int.Parse(input[0]);
      |                 ^~~
a.cc:9:17: error: expected primary-expression before 'int'
    9 |         int b = int.Parse(input[1]);
      |                 ^~~
a.cc:11:29: error: 'Console' was not declared in this scope
   11 |         if (a > 0 && b > 0) Console.WriteLine("Positive");
      |                             ^~~~~~~
a.cc:14:35: error: 'Console' was not declared in this scope
   14 |             if ((a + b) % 2 != 0) Console.WriteLine("Positive");
      |                                   ^~~~~~~
a.cc:15:18: error: 'Console' was not declared in this scope
   15 |             else Console.WriteLine("Negative");
      |                  ^~~~~~~
a.cc:17:14: error: 'Console' was not declared in this scope
   17 |         else Console.WriteLine("Zero");
      |              ^~~~~~~
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include <cstdio>
#include <vector>
using namespace std;

template<class T> T gc()
{
    int s, k, m = 0;
    T x = 0;

    k = getchar_unlocked();

    if (k == '-') s = 1;

    k = getchar_unlocked();

    while (true)
    {
        k = getchar_unlocked();

        if (k < '0' || k > '9') break;
        x = x * 10 + k - '0';
    }

    if (m) x = -x;
    return x;
}

int main()
{
    int N = gc();
    int M = gc();

    vector<int> num;
    vector<bool> red;

    for (int i = 0; i < N; i++)
    {
        num.push_back(1);
        red.push_back(false);
    }

    red[0] = true;

    for (int i = 0; i < M; i++)
    {
        int x = gc();
        int y = gc();

        if (red[x - 1]) red[y - 1] = true;
        num[x - 1]--;
        num[y - 1]++;
        if (!num[x - 1]) red[x - 1] = false;
    }

    int ans = 0;
    for (int i = 0; i < N; i++)
    {
        if (red[i]) ans++;
    }

    printf("%d\n", ans);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:15: error: no matching function for call to 'gc()'
   31 |     int N = gc();
      |             ~~^~
a.cc:6:21: note: candidate: 'template<class T> T gc()'
    6 | template<class T> T gc()
      |                     ^~
a.cc:6:21: note:   template argument deduction/substitution failed:
a.cc:31:15: note:   couldn't deduce template parameter 'T'
   31 |     int N = gc();
      |             ~~^~
a.cc:32:15: error: no matching function for call to 'gc()'
   32 |     int M = gc();
      |             ~~^~
a.cc:6:21: note: candidate: 'template<class T> T gc()'
    6 | template<class T> T gc()
      |                     ^~
a.cc:6:21: note:   template argument deduction/substitution failed:
a.cc:32:15: note:   couldn't deduce template parameter 'T'
   32 |     int M = gc();
      |             ~~^~
a.cc:47:19: error: no matching function for call to 'gc()'
   47 |         int x = gc();
      |                 ~~^~
a.cc:6:21: note: candidate: 'template<class T> T gc()'
    6 | template<class T> T gc()
      |                     ^~
a.cc:6:21: note:   template argument deduction/substitution failed:
a.cc:47:19: note:   couldn't deduce template parameter 'T'
   47 |         int x = gc();
      |                 ~~^~
a.cc:48:19: error: no matching function for call to 'gc()'
   48 |         int y = gc();
      |                 ~~^~
a.cc:6:21: note: candidate: 'template<class T> T gc()'
    6 | template<class T> T gc()
      |                     ^~
a.cc:6:21: note:   template argument deduction/substitution failed:
a.cc:48:19: note:   couldn't deduce template parameter 'T'
   48 |         int y = gc();
      |                 ~~^~
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include <cstdio>
#include <vector>
using namespace std;

template<class T> void gc()
{
    int s, k, m = 0;
    T x = 0;

    k = getchar_unlocked();

    if (k == '-') s = 1;

    k = getchar_unlocked();

    while (true)
    {
        k = getchar_unlocked();

        if (k < '0' || k > '9') break;
        x = x * 10 + k - '0';
    }

    if (m) x = -x;
    return x;
}

int main()
{
    int N = gc();
    int M = gc();

    vector<int> num;
    vector<bool> red;

    for (int i = 0; i < N; i++)
    {
        num.push_back(1);
        red.push_back(false);
    }

    red[0] = true;

    for (int i = 0; i < M; i++)
    {
        int x = gc();
        int y = gc();

        if (red[x - 1]) red[y - 1] = true;
        num[x - 1]--;
        num[y - 1]++;
        if (!num[x - 1]) red[x - 1] = false;
    }

    int ans = 0;
    for (int i = 0; i < N; i++)
    {
        if (red[i]) ans++;
    }

    printf("%d\n", ans);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:15: error: no matching function for call to 'gc()'
   31 |     int N = gc();
      |             ~~^~
a.cc:6:24: note: candidate: 'template<class T> void gc()'
    6 | template<class T> void gc()
      |                        ^~
a.cc:6:24: note:   template argument deduction/substitution failed:
a.cc:31:15: note:   couldn't deduce template parameter 'T'
   31 |     int N = gc();
      |             ~~^~
a.cc:32:15: error: no matching function for call to 'gc()'
   32 |     int M = gc();
      |             ~~^~
a.cc:6:24: note: candidate: 'template<class T> void gc()'
    6 | template<class T> void gc()
      |                        ^~
a.cc:6:24: note:   template argument deduction/substitution failed:
a.cc:32:15: note:   couldn't deduce template parameter 'T'
   32 |     int M = gc();
      |             ~~^~
a.cc:47:19: error: no matching function for call to 'gc()'
   47 |         int x = gc();
      |                 ~~^~
a.cc:6:24: note: candidate: 'template<class T> void gc()'
    6 | template<class T> void gc()
      |                        ^~
a.cc:6:24: note:   template argument deduction/substitution failed:
a.cc:47:19: note:   couldn't deduce template parameter 'T'
   47 |         int x = gc();
      |                 ~~^~
a.cc:48:19: error: no matching function for call to 'gc()'
   48 |         int y = gc();
      |                 ~~^~
a.cc:6:24: note: candidate: 'template<class T> void gc()'
    6 | template<class T> void gc()
      |                        ^~
a.cc:6:24: note:   template argument deduction/substitution failed:
a.cc:48:19: note:   couldn't deduce template parameter 'T'
   48 |         int y = gc();
      |                 ~~^~
Language: C++

#define REP_(i,n) for(int i=(n)-1;i>=0;i--)
#define SORT(n) sort((n).begin(),(n).end())
#define ALL(n) (n).begin(),(n).end()
#define TRY(n) try{n}catch(...){}

typedef vector<int> vi;
typedef vector<vector<int> > vii;
typedef vector<string> vs;
typedef vector<vector<string> > vss;

//vii v = v_(int,5,5);

int main(){
    IN_(a,b);
    if(a <= 0 && 0 <= b){OUT("Zero");}
    else if(a > 0 && b > 0){OUT("Positive");}
    else if(a < 0 && b < 0){
        if(abs(a-b)+1 % 2 == 0)OUT("Positive");
        else OUT("Negative");
    }else{
        OUT("Positive");
    }
}

Compiler output:
a.cc:6:9: error: 'vector' does not name a type
    6 | typedef vector<int> vi;
      |         ^~~~~~
a.cc:7:9: error: 'vector' does not name a type
    7 | typedef vector<vector<int> > vii;
      |         ^~~~~~
a.cc:8:9: error: 'vector' does not name a type
    8 | typedef vector<string> vs;
      |         ^~~~~~
a.cc:9:9: error: 'vector' does not name a type
    9 | typedef vector<vector<string> > vss;
      |         ^~~~~~
a.cc: In function 'int main()':
a.cc:14:9: error: 'a' was not declared in this scope
   14 |     IN_(a,b);
      |         ^
a.cc:14:11: error: 'b' was not declared in this scope
   14 |     IN_(a,b);
      |           ^
a.cc:14:5: error: 'IN_' was not declared in this scope
   14 |     IN_(a,b);
      |     ^~~
a.cc:15:26: error: 'OUT' was not declared in this scope
   15 |     if(a <= 0 && 0 <= b){OUT("Zero");}
      |                          ^~~
a.cc:16:29: error: 'OUT' was not declared in this scope
   16 |     else if(a > 0 && b > 0){OUT("Positive");}
      |                             ^~~
a.cc:18:12: error: 'abs' was not declared in this scope
   18 |         if(abs(a-b)+1 % 2 == 0)OUT("Positive");
      |            ^~~
a.cc:18:32: error: 'OUT' was not declared in this scope
   18 |         if(abs(a-b)+1 % 2 == 0)OUT("Positive");
      |                                ^~~
a.cc:19:14: error: 'OUT' was not declared in this scope
   19 |         else OUT("Negative");
      |              ^~~
a.cc:21:9: error: 'OUT' was not declared in this scope
   21 |         OUT("Positive");
      |         ^~~
Language: C++

#include<cstdio>
int main(){
int a,b;
cin>>a>>b;
if(a>b)swap(a,b);
int g=1;
for(int i=a;i<=b;i++){
g*=i;
}
if(!g)cout<<"Zero"<<endl;
else if(g>0)cout<<"Positive"<<endl;
else cout<<"Negative"<<endl;

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:1: error: 'cin' was not declared in this scope
    4 | cin>>a>>b;
      | ^~~
a.cc:5:8: error: 'swap' was not declared in this scope
    5 | if(a>b)swap(a,b);
      |        ^~~~
a.cc:10:7: error: 'cout' was not declared in this scope
   10 | if(!g)cout<<"Zero"<<endl;
      |       ^~~~
a.cc:10:21: error: 'endl' was not declared in this scope
   10 | if(!g)cout<<"Zero"<<endl;
      |                     ^~~~
a.cc:11:13: error: 'cout' was not declared in this scope
   11 | else if(g>0)cout<<"Positive"<<endl;
      |             ^~~~
a.cc:11:31: error: 'endl' was not declared in this scope
   11 | else if(g>0)cout<<"Positive"<<endl;
      |                               ^~~~
a.cc:12:6: error: 'cout' was not declared in this scope
   12 | else cout<<"Negative"<<endl;
      |      ^~~~
a.cc:12:24: error: 'endl' was not declared in this scope
   12 | else cout<<"Negative"<<endl;
      |                        ^~~~
Language: C++

#include <iostream>
using namespace std;
int main()
{
int a,b,mul=1;
cin>>a>>b;
int i;
while(i<=b){
mul=mul*i;
i++;
}
if(mul>=0){
cout<<"Positive"<<endl;
}
else if(mul<=0){
cout<<"Negative"<<endl;
}
else{
cout<<"Zero"<<endl;
}#include <iostream>
using namespace std;
int main()
{
int a,b,mul=1;
cin>>a>>b;
int i;
while(i<=b){
mul=mul*i;
i++;
}
if(mul>=0){
cout<<"Positive"<<endl;
}
else if(mul<=0){
cout<<"Negative"<<endl;
}
else{
cout<<"Zero"<<endl;
}
}

Compiler output:
a.cc:20:2: error: stray '#' in program
   20 | }#include <iostream>
      |  ^
a.cc: In function 'int main()':
a.cc:20:3: error: 'include' was not declared in this scope
   20 | }#include <iostream>
      |   ^~~~~~~
a.cc:20:20: error: expected primary-expression before '>' token
   20 | }#include <iostream>
      |                    ^
a.cc:21:1: error: expected primary-expression before 'using'
   21 | using namespace std;
      | ^~~~~
a.cc:22:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   22 | int main()
      |         ^~
a.cc:22:9: note: remove parentheses to default-initialize a variable
   22 | int main()
      |         ^~
      |         --
a.cc:22:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:23:1: error: a function-definition is not allowed here before '{' token
   23 | {
      | ^
a.cc:40:2: error: expected '}' at end of input
   40 | }
      |  ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#include <iostream>
#include <string>
#include <map>
#include <vector>

using namespace std;

int main()
{
	int a,b;
	int seki = 1;
	scanf(%d,&a);
	scanf(%d,&b);

	for(int i = a;i<=b;i++)
	{
		seki *= i;
	}
	if(seki>0){
		printf("%s","Positive\n");
	} else if(seki = 0){
		printf("%s","Zero")
	} else {
		printf("%s","Negative\n")
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:15: error: expected primary-expression before '%' token
   12 |         scanf(%d,&a);
      |               ^
a.cc:12:16: error: 'd' was not declared in this scope
   12 |         scanf(%d,&a);
      |                ^
a.cc:13:15: error: expected primary-expression before '%' token
   13 |         scanf(%d,&b);
      |               ^
a.cc:22:36: error: expected ';' before '}' token
   22 |                 printf("%s","Zero")
      |                                    ^
      |                                    ;
   23 |         } else {
      |         ~                           
a.cc:24:42: error: expected ';' before '}' token
   24 |                 printf("%s","Negative\n")
      |                                          ^
      |                                          ;
   25 |         }
      |         ~
Language: Java

import java.util.Scanner;
public class Atc_1 {

	public static void main(String[] args) {
		Scanner sc  = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		
		if (a > 0 && b > 0 )
			System.out.println("Positive");
		else if (a <= 0 && b >= 0)
			System.out.println("Zero");
		else if((Math.abs(a)+Math.abs(b) )% 2 == 0)
			System.out.println("Positive");
			else 
				System.out.println("Negative");

	}

}


Compiler output:
Main.java:2: error: class Atc_1 is public, should be declared in a file named Atc_1.java
public class Atc_1 {
       ^
1 error
Language: C

#include <stdio.h>
int main(void){
	int a,b,n;
	scanf("%d %d",&a,&b);
	if(a>0)puts("Positive");
	else if(a<=0&&b>=0)puts("Zero");
	else{
		n=b-a+1;
		if(n%2)puts("Negative");
		else puts("Positive")+
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:11:9: error: expected expression before '}' token
   11 |         }
      |         ^
Language: C++

#include<iostream>
using namespace std;
int main(0
{
cout<<1<<endl;
return 0;
}

Compiler output:
a.cc:3:5: error: cannot declare '::main' to be a global variable
    3 | int main(0
      |     ^~~~
a.cc:3:11: error: expected ')' before '{' token
    3 | int main(0
      |         ~ ^
      |           )
    4 | {
      | ~
Language: Java

/* Filename: AGC002A.java
 * Author: Mushiyo
 */

import java.util.Scanner;

public class Math{

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);

		while (input.hasNext()) {
			int a = input.nextInt();
			int b = input.nextInt();
			
			if(a > 0){
				System.out.println("Positive");
			} else if (b < 0){
				if((b - a + 1) % 2 == 0){
					System.out.println("Positive");
				} else {
					System.out.println("Negative");
				}
			} else {
				System.out.println("Zero");
			}
		}
	}
}


Compiler output:
Main.java:7: error: class Math is public, should be declared in a file named Math.java
public class Math{
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main()
{
  int a,b;
  cin >> a >> b;
  if(a<=0 && 0<=b)cout << "Zero";
  else if(a>0)cout << "Positive";
  else if(!(b-a)%2))cout << "Negative";
  else cout << "Positive";
  cout << '\n';
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: expected primary-expression before ')' token
   10 |   else if(!(b-a)%2))cout << "Negative";
      |                    ^
Language: C++

#include<iostream> 
using namespace std; 

int main()
{
	int a,b; 
	int zero=1, minus=0, result; 

	cin >> a >> b; 

	for(int i=0, i<b-a+1, i++)
	{
		if(a+i < 0)
		{
			minus++;
		}
		if(a+i == 0)
		{
			zero=0; 
		}

	}

	result = minus%2;
	if(zero == 0 )
	{
		cout << "Zero"<< endl; 
	}else{
		if(result==0)
		{
			cout << "Positive";
		}else{
			cout << "Negative";
		}
	}

	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:23: error: expected ';' before '<' token
   11 |         for(int i=0, i<b-a+1, i++)
      |                       ^
      |                       ;
a.cc:11:23: error: expected primary-expression before '<' token
a.cc:11:34: error: expected ';' before ')' token
   11 |         for(int i=0, i<b-a+1, i++)
      |                                  ^
      |                                  ;
Language: C++

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskA1 solver = new TaskA1();
        try {
            int testNumber = 1;
            while (true)
                solver.solve(testNumber++, in, out);
        } catch (UnknownError e) {
            out.close();
        }
    }

    static class TaskA1 {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int a = in.nextInt();
            int b = in.nextInt();

            if (a <= 0 && b >= 0) {
                out.println("Zero");
            } else {
                int n = b - a + 1;
                if (b < 0) {
                    if (n % 2 == 0) {
                        out.println("Positive");
                    } else {
                        out.println("Negative");
                    }
                } else {
                    out.println("Positive");
                }
            }
        }

    }
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.io.OutputStream;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.io.IOException;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: 'import' does not name a type
    3 | import java.io.InputStream;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: 'import' does not name a type
    4 | import java.io.PrintWriter;
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: 'import' does not name a type
    5 | import java.util.Scanner;
      | ^~~~~~
a.cc:5:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:11:1: error: expected unqualified-id before 'public'
   11 | public class Main {
      | ^~~~~~
Language: Java

public class Main {
	public static void main(String[] args) throws java.io.IOException {
		// TODO 自動生成されたメソッド・スタブ
		Scanner in = new Scanner(System.in);
		int a = in.nextInt();
		int b = in.nextInt();
		int result = 0;
		for (;a <= b; a++) {
			result = a * (a + 1);
			if (result == 0) {
				break;
			}
		}
		if(result > 0){
			System.out.println("Positive");
		} else if(result < 0){
			System.out.println("Negative");
		} else if (result == 0) {
			System.out.println("Zero");
		}
	}
}

Compiler output:
Main.java:4: error: cannot find symbol
		Scanner in = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:4: error: cannot find symbol
		Scanner in = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

import java.util.*;
    public class Main{
        public static void main(String[] args){
            Scanner sc = new Scanner(System.in);

            long A = sc.nextLong()L;
            long B = sc.nextLong()L;
            long C = A;
            for(int i=0; i<B-A; i++){
                A = A*(C+1);
                C++;
            }

           if(A == 0){
                System.out.println("Zero");
           }else if(A>0){
                System.out.println("Positive");
          }else if(A<0){
                System.out.println("Negative");
         }
    }
}
               


Compiler output:
Main.java:6: error: ';' expected
            long A = sc.nextLong()L;
                                  ^
Main.java:7: error: ';' expected
            long B = sc.nextLong()L;
                                  ^
2 errors
Language: Java

import java.util.*;
    public class Main{
        public static void main(String[] args){
            Scanner sc = new Scanner(System.in);

            long A = sc.nextInt()L;
            long B = sc.nextInt()L;
            long C = A;
            for(int i=0; i<B-A; i++){
                A = A*(C+1);
                C++;
            }

           if(A == 0){
                System.out.println("Zero");
           }else if(A>0){
                System.out.println("Positive");
          }else if(A<0){
                System.out.println("Negative");
         }
    }
}
               


Compiler output:
Main.java:6: error: ';' expected
            long A = sc.nextInt()L;
                                 ^
Main.java:7: error: ';' expected
            long B = sc.nextInt()L;
                                 ^
2 errors
Language: Java

import java.util.*;
    public class Main{
        public static void main(String[] args){
            Scanner sc = new Scanner(System.in);

            int A = sc.nextInt();
            int B = sc.nextInt();
            Int C = A;
            for(int i=0; i<B-A; i++){
                A = A*(C+1);
                C++;
            }

           if(A == 0){
                System.out.println("Zero");
           }else if(A>0){
                System.out.println("Positive");
          }else if(A<0){
                System.out.println("Negative");
         }
    }
}
               


Compiler output:
Main.java:8: error: cannot find symbol
            Int C = A;
            ^
  symbol:   class Int
  location: class Main
1 error
Language: Java

import java.util.*;
    public class Main{
        public static void main(String[] args){
            Scanner sc =new Scanner(System.in);

            int A = sc.nextInt();
            int B = sc.nextInt();

            for(int i=0; i<B-A; i++){
                A = A*(A+1);
            }

           if(A =0){
                System.out.println("Zero");
           }else if(A>0){
                System.out.println("Positive");
          }else{
                System.out.println("Negative");
         }
    }
}
               


Compiler output:
Main.java:13: error: incompatible types: int cannot be converted to boolean
           if(A =0){
                ^
1 error
Language: Java

import java.util.*;
    public class Main{
        public static void main(Strint[] args){
            Scanner sc =new Scanner(System.in);

            int A = sc.nextInt();
            int B = sc.nextInt();

            for(int i=0; i<B-A; i++){
                A = A*(A+1);
            }

           if(A =0){
                System.out.println("Zero");
           }else if(A>0){
                System.out.println("Positive");
          }else{
                System.out.println("Negative");
         }
    }
}
               


Compiler output:
Main.java:3: error: cannot find symbol
        public static void main(Strint[] args){
                                ^
  symbol:   class Strint
  location: class Main
Main.java:13: error: incompatible types: int cannot be converted to boolean
           if(A =0){
                ^
2 errors
Language: C++

#include <iostream>

using namespace std;

int main()
{
	cin >> a ;
	cin >> b ;
	
	if( a * b <= 0 )
	{
		cout << "Zero" << endl ;
	}
	else
	{
		if( a + b <= 0 )
		{
			if( ( b - a ) % 2 == 0 )
			{
				cout << "Negative" << endl ;
			}
			else
			{
				cout << "Positive" << endl ;
			}
		}
		else
		{
			cout << "Positive" << endl ;
		}
	}
	
	return 0 ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: 'a' was not declared in this scope
    7 |         cin >> a ;
      |                ^
a.cc:8:16: error: 'b' was not declared in this scope
    8 |         cin >> b ;
      |                ^
Language: C++

#include <cstdio>

#include <cmath>

#include <cstring>

#include <iostream>

#include <algorithm>

#include <queue>

#include <vector>

#include <map>



using namespace std;



typedef long long LL;


int n;
int len,a[100005]
LL s[100005];
int l,r;
bool flag;
int ans[100005];

int main()

{
	scanf("%d%d",&n,&len);
	for (int i=1;i<=n;++i) scanf("%d",&a[i]);
	s[0]=0;
	for (int i=1;i<=n;++i) s[i]=s[i-1]+a[i];
	flag=true;
	l=1;r=n;
	for (int z=1;z<n;++z)
	{
		if (s[r]-s[l-1]>=len)
		{
			if (a[l]<a[r])
			{
				ans[z]=l;
				l++;
			}
			else
			{
				ans[z]=r-1;
				r--;
			}
		}
		else
		{
			flag=false;
		}
	}
	if (flag)
	{
		printf("Possible\n");
		for (int i=1;i<n;++i) printf("%d\n",ans[i]);
	}
	else
	{
		printf("Impossible\n");
	}

	return 0;

}

Compiler output:
a.cc:28:1: error: expected initializer before 'LL'
   28 | LL s[100005];
      | ^~
a.cc: In function 'int main()':
a.cc:37:44: error: 'a' was not declared in this scope
   37 |         for (int i=1;i<=n;++i) scanf("%d",&a[i]);
      |                                            ^
a.cc:38:9: error: 's' was not declared in this scope
   38 |         s[0]=0;
      |         ^
a.cc:39:44: error: 'a' was not declared in this scope
   39 |         for (int i=1;i<=n;++i) s[i]=s[i-1]+a[i];
      |                                            ^
a.cc:46:29: error: 'a' was not declared in this scope
   46 |                         if (a[l]<a[r])
      |                             ^
Language: Java

import java.util.*;
import java.io.*;

public class Main {

    void solve() {
	String ans = "";
	long a = sc.nextLong();
	long b = sc.nextLong();

	long ans = 1;

	for (long i = a; i <= b; i++) {
	    ans *= i;
	}

	if (ans == 0) {
	    System.out.println("Zero");
	} else if (ans < 0) {
	    System.out.println("Negative");
	} else {
	    System.out.println("Positive");
	}


    }

    void print(int[] a) {
	out.print(a[0]);
	for (int i = 1; i < a.length; i++) out.print(" " + a[i]);
	out.println();
    }

    public static void main(String[] args) throws Exception {
	new Main().run();
    }

    MyScanner sc = null;
    PrintWriter out = null;
    public void run() throws Exception {
	sc = new MyScanner(System.in);
	out = new PrintWriter(System.out);
	for (;sc.hasNext();) {
	    solve();
	    out.flush();
	}
	out.close();
    }

    class MyScanner {
	String line;
	BufferedReader reader;
	StringTokenizer tokenizer;

	public MyScanner(InputStream stream) {
	    reader = new BufferedReader(new InputStreamReader(stream));
	    tokenizer = null;
	}
	public void eat() {
	    while (tokenizer == null || !tokenizer.hasMoreTokens()) {
		try {
		    line = reader.readLine();
		    if (line == null) {
			tokenizer = null;
			return;
		    }
		    tokenizer = new StringTokenizer(line);
		} catch (IOException e) {
		    throw new RuntimeException(e);
		}
	    }
	}
	public String next() {
	    eat();
	    return tokenizer.nextToken();
	}
	public String nextLine() {
	    try {
		return reader.readLine();
	    } catch (IOException e) {
		throw new RuntimeException(e);
	    }
	}
	public boolean hasNext() {
	    eat();
	    return (tokenizer != null && tokenizer.hasMoreElements());
	}
	public int nextInt() {
	    return Integer.parseInt(next());
	}
	public long nextLong() {
	    return Long.parseLong(next());
	}
	public double nextDouble() {
	    return Double.parseDouble(next());
	}
	public int[] nextIntArray(int n) {
	    int[] a = new int[n];
	    for (int i = 0; i < n; i++) a[i] = nextInt();
	    return a;
	}
    }
}


Compiler output:
Main.java:11: error: variable ans is already defined in method solve()
	long ans = 1;
	     ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main(){
    int a, b;
    cin a >> b;
    if(a * b <= 0 ){
        cout << "Zero" << endl;
    }else if( (a < 0 && 0 < b) && a%2 != 0 || (a < 0 && b < 0) && (b-a+1)%2 != 0 ){
        cout << "Negative" << endl;
    }else{
        cout << "Positive" << endl;
    }
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:8: error: expected ';' before 'a'
    6 |     cin a >> b;
      |        ^~
      |        ;
Language: C++

#include<iostream>
using namespace std;

int main(){
    int a,b;
    cin >> a >> b;
    int ans = a;
    for(int i = a + 1; i <= b; i++){
        if(ans > 0)ans = 1;
        else if(ans == 0){
            ans = 0;
            break;
        }else if(ans < 0){
            ans = -1:
        }
            ans *= i;
    }

    if(ans > 0)cout << "Positive" << endl;
    else if(ans == 0)cout << "Zero" << endl;
    else cout << "Negative" << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:21: error: expected ';' before ':' token
   14 |             ans = -1:
      |                     ^
      |                     ;
Language: Java

 import java.util.Scanner;
public class Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);


        int n=scan.nextInt();
        int m=scan.nextInt();
       int a = scan.nextInt();
        int b = scan.nextInt();
        String ans = "";
        if (0 < a)
            ans = "Positive";
        if (a < =0 && 0 <= b)
            ans = "Zero";

        if (b < 0 && (b - a) % 2 == 0)
            ans = "Negative";

        System.out.println(ans);}}

Compiler output:
Main.java:15: error: illegal start of expression
        if (a < =0 && 0 <= b)
                ^
1 error
Language: Java

        int a = scan.nextInt();
        int b = scan.nextInt();
        String ans = "";
        if (0 < a)
            ans = "Positive";
        if (a < =0 && 0 <= b)
            ans = "Zero";

        if (b < 0 && (b - a) % 2 == 0)
            ans = "Negative";

        System.out.println(ans);

Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
        int a = scan.nextInt();
        ^
  (use --enable-preview to enable unnamed classes)
Main.java:4: error: class, interface, enum, or record expected
        if (0 < a)
        ^
Main.java:6: error: class, interface, enum, or record expected
        if (a < =0 && 0 <= b)
        ^
Main.java:9: error: class, interface, enum, or record expected
        if (b < 0 && (b - a) % 2 == 0)
        ^
Main.java:12: error: class, interface, enum, or record expected
        System.out.println(ans);
        ^
5 errors
Language: C

#include<stdio.h>
int main(void)
{
	int a,b,c;
	c=0;
	scanf("%d %d",&a,&b);
	c=a*(a+1)*b;
	if(1=<c){
		printf("Positive\n");
	}
	if(-1>=c){
		printf("Negative\n");
	}
	if(c==0){
		printf("Zero\n");
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:14: error: expected expression before '<' token
    8 |         if(1=<c){
      |              ^
Language: C++

#include<stdio.h>
int main(void)
{
	int a,b,c;
	c=0;
	scanf("%d %d",&a,&b);
	c=a*(a+1)*b;
	if(1=<c){
		printf("Positive\n");
	}
	if(-1>=c){
		printf("Negative\n");
	}
	if(c==0){
		printf("Zero\n");
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:14: error: expected primary-expression before '<' token
    8 |         if(1=<c){
      |              ^
Language: C

#include <iostream>
using namespace std;

int main() {
	int a,b;
	cin >> a >> b;

	if (a==0 || b ==0) {
		cout << "Zero" << endl;
		return 0;
	} 
	if (a < 0 && b > 0) {
		cout << "Zero" << endl;
	}
	int c = (b - a) % 2;


	if (a < 0) {
		if (c == 0) {
			cout << "Negative" << endl;			
		} else {
			cout << "Positive" << endl;			
		}
	} else {
		cout << "Positive" << endl;			
	}
	return 0;
}

Compiler output:
main.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

a,b;main(){
	scanf("%d%d",&a,&b);
	if(!a||!b||a<0&&b>0)printf("Zero\n");
	else if(a>0&&b>0)printf("Positive\n");
	else printf((b-a+1)%2?"Negative\n":"Positive\n");
}


Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a,b;main(){
      | ^
a.cc:1:5: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    1 | a,b;main(){
      |     ^~~~
a.cc: In function 'int main()':
a.cc:2:23: error: 'a' was not declared in this scope
    2 |         scanf("%d%d",&a,&b);
      |                       ^
a.cc:2:26: error: 'b' was not declared in this scope
    2 |         scanf("%d%d",&a,&b);
      |                          ^
a.cc:2:9: error: 'scanf' was not declared in this scope
    2 |         scanf("%d%d",&a,&b);
      |         ^~~~~
a.cc:3:29: error: 'printf' was not declared in this scope
    3 |         if(!a||!b||a<0&&b>0)printf("Zero\n");
      |                             ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | a,b;main(){
a.cc:4:26: error: 'printf' was not declared in this scope
    4 |         else if(a>0&&b>0)printf("Positive\n");
      |                          ^~~~~~
a.cc:4:26: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
a.cc:5:14: error: 'printf' was not declared in this scope
    5 |         else printf((b-a+1)%2?"Negative\n":"Positive\n");
      |              ^~~~~~
a.cc:5:14: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
Language: C++

using namespace std;

int compareMultiple(int a, int b) {
    if (a == b) {
        return a;
    }
    if (a > 0) {
        return 1;
    }
    if (a <= 0 && b >= 0) {
        return 0;
    }
    if (b < 0) {
        return (-a + b) % 2 == 0 ? -1 : 1;
    }
}

int main() {
    long a, b;
    cin >> a >> b;
    int res = compareMultiple(a, b);
    cout << (res == 0 ? "Zero" : (res > 0 ? "Positive" : "Negative"));
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:5: error: 'cin' was not declared in this scope
   20 |     cin >> a >> b;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:22:5: error: 'cout' was not declared in this scope
   22 |     cout << (res == 0 ? "Zero" : (res > 0 ? "Positive" : "Negative"));
      |     ^~~~
a.cc:22:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc: In function 'int compareMultiple(int, int)':
a.cc:16:1: warning: control reaches end of non-void function [-Wreturn-type]
   16 | }
      | ^
Language: Java

/**
 * Created by abhishek on 7/31/2016.
 */
import java.util.*;
import java.io.*;
public class A {
    public static void main(String[] args) throws Exception{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int a = Integer.parseInt(st.nextToken());
        int b = Integer.parseInt(st.nextToken());
        if(a > 0){
            System.out.println("Positive");
            return;
        }
        if(a <= 0 && b >= 0){
            System.out.println("Zero");
        return;
        }
        if(b < 0){
            int temp = b - a + 1;
            if(temp % 2 == 0)System.out.println("Positive");
            else System.out.print("Negative");
        }
    }
}


Compiler output:
Main.java:6: error: class A is public, should be declared in a file named A.java
public class A {
       ^
1 error
Language: C++

{-# LANGUAGE ScopedTypeVariables #-}
import Control.Applicative
import Control.Monad
import Control.Monad.State
import Control.DeepSeq
import Data.Array
import Data.Bits
import Data.Char
import Data.Functor.Identity
import Data.List
import Data.Ord
import Data.Maybe
import Data.Tree
import Data.Tuple
import qualified System.IO
import qualified Data.Map as M
import qualified Data.Set as S
import qualified Data.Sequence as Q
import qualified Data.ByteString.Char8 as B

main = do
  [a,b] :: [Z] <- readLnList
  putStrLn $
    if inRange (a,b) 0
    then "Zero"
    else
      if a > 0 || even (a-b+1) then "Positive" else "Negative"


 
type Z = Int
type Q = Rational
type R = Double
type S = String

fint :: (Integral a, Num b) => a -> b
fint = fromIntegral

getInt = fst . fromJust . B.readInt <$> B.getLine
getIntPair = (\[a,b]->(a,b)) <$> getInts
getInts = map (fst . fromJust . B.readInt) . B.words <$> B.getLine
getStr = B.unpack <$> B.getLine

yesNo :: Bool -> String
yesNo True = "YES"
yesNo False = "NO"

printList :: (Show a) => [a] -> IO ()
printList = putStrLn . unwords . map show

readLnList :: (Read a) => IO [a]
readLnList = map read . words <$> getLine


-----  Union-find
type UnionFindT v m a = StateT (M.Map v (UnionFindVal v)) m a
newtype UnionFindVal v = UnionFindVal v

runUnionFindT :: (Monad m) => UnionFindT v m a -> m a
runUnionFindT = flip evalStateT $ M.empty

runUnionFind = runIdentity . runUnionFindT

ufFresh :: (Monad m, Ord v) => v -> UnionFindT v m ()
ufFresh v = modify $ M.insert v (UnionFindVal v)

ufClass :: (Monad m, Ord v) => v -> UnionFindT v m v
ufClass v = do
  (UnionFindVal pv) <- gets (M.! v)
  if v == pv
    then return v
    else do
      c <- ufClass pv
      modify $ M.insert v (UnionFindVal c)
      return c

ufUnify v w = do
  cv <- ufClass v
  cw <- ufClass w
  modify $ M.insert cw (UnionFindVal cv)
  return $ cv /= cw


Compiler output:
a.cc:1:3: error: stray '#' in program
    1 | {-# LANGUAGE ScopedTypeVariables #-}
      |   ^
a.cc:1:34: error: stray '#' in program
    1 | {-# LANGUAGE ScopedTypeVariables #-}
      |                                  ^
a.cc:40:15: error: stray '\' in program
   40 | getIntPair = (\[a,b]->(a,b)) <$> getInts
      |               ^
a.cc:1:1: error: expected unqualified-id before '{' token
    1 | {-# LANGUAGE ScopedTypeVariables #-}
      | ^
a.cc:2:1: error: 'import' does not name a type
    2 | import Control.Applicative
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main(){
  int a,b;
  cin>>a>>b;
  if( a<= 0 && 0<= b ){
    cout<<"Zero"<<endl;
  }else{
    int cnt=0;
    
    if(b<0)a+=b
    
    if(a<0 && (-a)%2==0 ){
      cout<<"Negative"<<endl;
    }else{
      cout<<"Positive"<<endl;
    }
    
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: expected ';' before 'if'
   12 |     if(b<0)a+=b
      |                ^
      |                ;
   13 | 
   14 |     if(a<0 && (-a)%2==0 ){
      |     ~~
Language: C++

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <queue>
#include <algorithm>
#include <utility>
#include <cmath>

#define INF_LL 9000000000000000000
#define INF 2000000000

#define REP(i, n) for(int i = 0;i < (n);i++)
#define FOR(i, a, b) for(int i = (a);i < (b);i++)

using namespace std;

typedef long long ll;
typedef pair<int, int> PII;

class Union_find{
private:
	vector<int> par;
	vector<int> rank;
	int n;

public:
	Union_find(int a){
		n = a;
		for(int i = 0;i < n;i++){
			par.push_back(i);
			rank.push_back(0);
		}
	}

	int find(int x){
		if(par[x] == x){
			return x;
		}else{
			return par[x] = find(par[x]);
		}
	}

	void unite(int x, int y){
		x = find(x);
		y = find(y);
		if(x == y) return;

		if(rank[x] < rank[y]){
			par[x] = y;
		}else{
			par[y] = x;
			if(rank[x] == rank[y]) rank[x]++;
		}
	}

	bool same(int x, int y){
		return find(x) == find(y);
	}
};

int main(void){
	int a, b;
	cin >> a >> b;
	if(a < 0 && b < 0){
		if((b - a + 1) % 2 == 0){
			cout << "Positive" << endl;
			return 0;
		}else{
			cout << "Negative" << endl;
			return 0;
		}
	}else if(a <= 0 && 0 <= b){
		cout <<< "Zero" << endl;
		return 0;
	}else{
		cout << "Positive" << endl;
		return 0;
	}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:74:24: error: expected primary-expression before '<' token
   74 |                 cout <<< "Zero" << endl;
      |                        ^
a.cc:74:33: error: invalid operands of types 'const char [5]' and '<unresolved overloaded function type>' to binary 'operator<<'
   74 |                 cout <<< "Zero" << endl;
      |                          ~~~~~~~^~~~~~~
Language: C++

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <queue>
#include <algorithm>
#include <utility>
#include <cmath>

#define INF_LL 9000000000000000000
#define INF 2000000000

#define REP(i, n) for(int i = 0;i < (n);i++)
#define FOR(i, a, b) for(int i = (a);i < (b);i++)

using namespace std;

typedef long long ll;
typedef pair<int, int> PII;

class Union_find{
private:
	vector<int> par;
	vector<int> rank;
	int n;

public:
	Union_find(int a){
		n = a;
		for(int i = 0;i < n;i++){
			par.push_back(i);
			rank.push_back(0);
		}
	}

	int find(int x){
		if(par[x] == x){
			return x;
		}else{
			return par[x] = find(par[x]);
		}
	}

	void unite(int x, int y){
		x = find(x);
		y = find(y);
		if(x == y) return;

		if(rank[x] < rank[y]){
			par[x] = y;
		}else{
			par[y] = x;
			if(rank[x] == rank[y]) rank[x]++;
		}
	}

	bool same(int x, int y){
		return find(x) == find(y);
	}
};

int main(void){
	int a, b;
	cin >> a >> b;
	if(a < 0 && b < 0){
		if((b - a + 1) % 2 == 0){
			cout << "Positive" << endl;
			return 0;
		}else{
			cout << "Negative" << endl;
			return 0;
		}
	}else if(a <= 0 && 0 <= b){
		cout <<< "Zero" << ednl;
		return 0;
	}else{
		cout << "Positive" << endl;
		return 0;
	}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:74:24: error: expected primary-expression before '<' token
   74 |                 cout <<< "Zero" << ednl;
      |                        ^
a.cc:74:36: error: 'ednl' was not declared in this scope
   74 |                 cout <<< "Zero" << ednl;
      |                                    ^~~~
Language: Java

import java.io.*;
import java.util.*;

public class rangeprod {
  private static InputReader in;
  private static PrintWriter out;

  public static void main(String[] args) throws IOException {
    in = new InputReader(System.in);
    out = new PrintWriter(System.out, true);

    int a = in.nextInt(), b= in.nextInt();
    if (a <= 0 && b >= 0) {
      out.println("Zero");
    } else if (a > 0 && b > 0) {
      out.println("Positive");
    } else {
      int terms = (b-a+1);
      out.println(terms%2 == 0 ? "Positive" : "Negative");
    }
    
    
    out.close();
    System.exit(0);
  }

  static class InputReader {
    public BufferedReader reader;
    public StringTokenizer tokenizer;

    public InputReader(InputStream stream) {
      reader = new BufferedReader(new InputStreamReader(stream), 32768);
      tokenizer = null;
    }

    public String next() {
      while (tokenizer == null || !tokenizer.hasMoreTokens()) {
        try {
          tokenizer = new StringTokenizer(reader.readLine());
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
      }
      return tokenizer.nextToken();
    }

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


}


Compiler output:
Main.java:4: error: class rangeprod is public, should be declared in a file named rangeprod.java
public class rangeprod {
       ^
1 error