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

#include <iostream>
#include <algorithm>
using namespace std;
main()
{
    int n;
    cin>> n;
    int a[2n];
    for(int i=0;i<2n;i++)
cin >> a[i];
sort (a,a+2n);
int s=0;
for(int i=0;i<2n;i+=2)
{
s=s+((a[i]>a[i+1])?a[i+1]:a[i]);
}
cout << s;
}

Compiler output:
a.cc:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:8:11: error: unable to find numeric literal operator 'operator""n'
    8 |     int a[2n];
      |           ^~
a.cc:9:19: error: unable to find numeric literal operator 'operator""n'
    9 |     for(int i=0;i<2n;i++)
      |                   ^~
a.cc:10:8: error: 'a' was not declared in this scope
   10 | cin >> a[i];
      |        ^
a.cc:11:7: error: 'a' was not declared in this scope
   11 | sort (a,a+2n);
      |       ^
a.cc:11:11: error: unable to find numeric literal operator 'operator""n'
   11 | sort (a,a+2n);
      |           ^~
a.cc:13:15: error: unable to find numeric literal operator 'operator""n'
   13 | for(int i=0;i<2n;i+=2)
      |               ^~
Language: C++

#include <bits.stdc++.h>

using namespace std;

int n;
int a[202];
int main() {
  cin >> n;
  for(int i = 0; i < 2 * n; i++) cin >> a[i];

  sort(a,a+2*n);

  int ans = 0;

  for(int i = 0; i < 2 * n; i += 2) ans += a[i];

  cout << ans << endl;
}


Compiler output:
a.cc:1:10: fatal error: bits.stdc++.h: No such file or directory
    1 | #include <bits.stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
using namespace std;
int main(){
int n;
cin >> n;
int l[2*n];
int i,j;
for(i=0;i<2*n;i++){
cin >> l[i];
}
for(i=0;i<2*n;i++){
for(j=0j<2*n-1-i;j++){
if(l[j]>l[j+1]){
int x=l[j];
l[j]=l[j+1];
l[j+1]=x;
}
}
}
int ans;
for(i=0;i<n;i++){
ans +=l[i*2];
}
cout << ans <<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: invalid operands of types '__complex__ int' and 'int' to binary 'operator<'
   12 | for(j=0j<2*n-1-i;j++){
      |       ~~^~~~~~~~
      |       |       |
      |       |       int
      |       __complex__ int
a.cc:12:21: error: expected ';' before ')' token
   12 | for(j=0j<2*n-1-i;j++){
      |                     ^
      |                     ;
Language: C++

#include <iostream>
#include <algorithm>

using namespace std;

int main(){
  int N;
  int L[N];
  for(int i = 0; i < 2*N; i++){
    cin >> L[i];
  }
  sort(L, L+2N);
  int sum = 0;
  for(int i = 0; i < N; i++){
    sum += L[2*N];
  }

  cout << sum << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: unable to find numeric literal operator 'operator""N'
   12 |   sort(L, L+2N);
      |             ^~
Language: C++

#include <iostraem>
#include <algorithm>

using namespace std;

int main(){
  int N;
  int L[N];
  for(int i = 0; i < 2*N; i++){
    cin >> L[i];
  }
  sort(L, L+2N);
  int sum = 0;
  for(int i = 0; i < N; i++){
    sum += L[2*N];
  }

  cout << sum << endl;
  return 0;
}

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


#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
void solve(vector<int> &v)
{
	sort(v.begin(),v.end());
//	reverse(v.begin(), v.end());

	int res = 0;
	for(size_t i = 0 ; i < v.size()-1 ; i+=2)
	{
		res += min(v[i],v[i+1]);
	}
	cout << res << endl;
}
int main(void)
{
	int n;
	cin >> n;
	vector<int> v;
	while(n--)
	{
		int tmp;
		cin >> tmp;
		v.push_back(tmp);
	}
//	vector<int> v={1 ,3, 1, 2};
//	vector<int> v2 = {100 ,1 ,2 ,3 ,14 ,15 ,58 ,58, 58 ,29};
	solve(v2);


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:15: error: 'v2' was not declared in this scope; did you mean 'v'?
   32 |         solve(v2);
      |               ^~
      |               v
Language: C++


#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main_tmp(void)
{
	int n;
	cin >> n;
	vector<int> v(n);
	int idx=0;
	while(n--)
	{
		cin >> v[idx++];
	}
	sort(v.begin(),v.end());
	reverse(v.begin(), v.end());

	if(v.size() >= 2)
	{
		cout << v[1] << endl;
	}else
	{
		cout << v[0] << endl;
	}
	return 0;
}


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include <vector>
using namespace std;
int main(void)
{
	int n;
	cin >> n;
	vector<int> v(n);
	int idx=0;
	while(n--)
	{
		cin >> v[idx++];
	}
	sort(v.begin(),v.end());
	reverse(v.begin(), v.end());
	if(v.size() >= 1)
	{
		cout << v[1] << endl;
	}else
	{
		cout << v[0] << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |         sort(v.begin(),v.end());
      |         ^~~~
      |         short
a.cc:15:9: error: 'reverse' was not declared in this scope
   15 |         reverse(v.begin(), v.end());
      |         ^~~~~~~
Language: C++

#include <iostream>
using namespace std;
int main(void)
{ 
	int n;
	cin >> n;
	vector<int> v(n);
	int idx=0;
	while(n--)
	{
		cin >> v[idx++];
	}
	sort(v.begin(),v.end());
	reverse(v.begin(), v.end());
	if(v.size() >= 1)
	{
		cout << v[1] << endl;
	}else
	{
		cout << v[0] << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'vector' was not declared in this scope
    7 |         vector<int> v(n);
      |         ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:7:16: error: expected primary-expression before 'int'
    7 |         vector<int> v(n);
      |                ^~~
a.cc:11:24: error: 'v' was not declared in this scope
   11 |                 cin >> v[idx++];
      |                        ^
a.cc:13:14: error: 'v' was not declared in this scope
   13 |         sort(v.begin(),v.end());
      |              ^
a.cc:13:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   13 |         sort(v.begin(),v.end());
      |         ^~~~
      |         short
a.cc:14:9: error: 'reverse' was not declared in this scope
   14 |         reverse(v.begin(), v.end());
      |         ^~~~~~~
Language: C++

#include <iostream>
#include <vector>

int main(int argc, char* argv[])
{
    int n;
    scanf("%d", &n);
    std::vector<int> input(2*n);
    for(int i = 0; i < input.size(); ++i){
        scanf("%d", &input[i]);
    }
    sort(input.begin(), input.end());
    int ans = 0;
    for(int i = 0; i < input.size(); i += 2){
        ans += input[i];
    }
    printf("answer : %d\n", ans);
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:12:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   12 |     sort(input.begin(), input.end());
      |     ^~~~
      |     short
Language: Java

import java.util.Scanner;

public class BBQ {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();
        int[] L = new int[2*N];
        int temp = 0, result = 0;
        for (int i = 0; i < 2*N; i++) {
            L[i] = scanner.nextInt();
        }
        for (int i = 0; i < L.length; i++) {
            for (int j = i; j < L.length; j++) {
                if (L[i] > L[j]) {
                    temp = L[i];
                    L[i] = L[j];
                    L[j] = temp;
                }
            }
        }
        for (int i = 0; i < L.length; i=i+2) {
            result += L[i];
        }
        System.out.println(result);
    }
}


Compiler output:
Main.java:3: error: class BBQ is public, should be declared in a file named BBQ.java
public class BBQ {
       ^
1 error
Language: Java

import java.util.*;
public class Main {

public void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	int maxCnt = sc.nextInt();
	int[] arr = new int[maxCnt*1];
	for (int i = 0; i < arr.length; i++) {
		arr[i] = sc.nextInt();
	}

	sort(arr, 0, arr.length);

	int sum = 0;
	for(int i = 0; i < maxCnt * 2; i+=2) {
		sum += arr[i+1];
	} 

	System.out.println(sum);
}

private void sort(int[] arr, int start, int end) {
	if(start >= end) {
		return;
	}

	int originStart = start;
	int originEnd = end;

	int target = arr[start];

	while(start < end) {
		while(start < end && target > arr[end]) {
			end--;
		}
		if(start < end) {
			int temp = arr[end];
			arr[end] = arr[start];
			arr[start] = temp;
		}

		while(start < end && arr[start] >= target) {
			start++;
		}
		if(start < end) {
			temp = arr[end];
			arr[end] = arr[start];
			arr[start] = temp;
		}
	}

	sort(arr, originStart, start - 1);
	sort(arr, end + 1, originEnd);
}

}


Compiler output:
Main.java:46: error: cannot find symbol
			temp = arr[end];
			^
  symbol:   variable temp
  location: class Main
Main.java:48: error: cannot find symbol
			arr[start] = temp;
			             ^
  symbol:   variable temp
  location: class Main
2 errors
Language: Java

public void main(String[] args) {
	Scanner sc = new Scanner(System.in);
	int maxCnt = sc.nextInt();
	int[] arr = new int[maxCnt*1];
	for (int i = 0; i < arr.length; i++) {
		arr[i] = sc.nextInt();
	}

	sort(arr, 0, arr.length);

	int sum = 0;
	for(int i = 0; i < maxCnt * 2; i+=2) {
		sum += arr[i+1];
	} 

	System.out.println(sum);
}

private void sort(int[] arr, int start, int end) {
	if(start >= end) {
		return;
	}

	int originStart = start;
	int originEnd = end;

	int target = arr[start];

	while(start < end) {
		while(start < end && target > arr[end]) {
			end--;
		}
		int temp = arr[end];
		arr[end] = arr[start];
		arr[start] = temp;

		while(start < end && arr[start] >= target) {
			start++;
		}
		temp = arr[end];
		arr[end] = arr[start];
		arr[start] = temp;
	}

	sort(arr, originStart, start - 1);
	sort(arr, end + 1, originEnd);
}



Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
public void main(String[] args) {
       ^
  (use --enable-preview to enable unnamed classes)
1 error
Language: C++

#include<iostream>
#include<cmath>
#include<algorithm>
#include<iomanip>
#include<string>
#include<vector>
#include<cstdio>
#include<cstring>
#include<map>
#include<set>
#include<fstream>
#include<sstream>
#include<queue>
#include<iterator>
using namespace std;
vector<int> g[2000];
int n,k;
int dfs(int x,int pre,int d,int mx){
	int ans=1;
	if(d!=mx){
		for(int i=0;i<g[x].size();i++)
			if(g[x][i]!=pre)ans+=dfs(g[x][i],x,d+1,mx);
	}
	return ans;
}


int main(){
	cin>>n>>k;
	for(int i=1;i<n;i++){
		int a,b;
		cin>>a>>b;
		a--;
		b--;
		g[a].push_back(b);
		g[b].push_back(a);
	}
  int ans=0;
	if(k%2==0){
		for(int i=0;i<n;i++)
		  ans=max(ans,dfs(i,-1,0,k/2));
	}
	else{
		for(int i=0;i<n;i++)
			for(int j=0;j<g[i].size();j++)
				ans=max(ans,dfs(i,g[i][j],0,k/2)+dfs(g[i][j],i,0,k/2));
	}

	cout<<n-ans<<endl;

  return 0;
}
#include<iostream>
#include<cmath>
#include<algorithm>
#include<iomanip>
#include<string>
#include<vector>
#include<cstdio>
#include<cstring>
#include<map>
#include<set>
#include<fstream>
#include<sstream>
#include<queue>
#include<iterator>
using namespace std;
vector<int> g[2000];
int n,k;
int dfs(int x,int pre,int d,int mx){
	int ans=1;
	if(d!=mx){
		for(int i=0;i<g[x].size();i++)
			if(g[x][i]!=pre)ans+=dfs(g[x][i],x,d+1,mx);
	}
	return ans;
}


int main(){
	cin>>n>>k;
	for(int i=1;i<n;i++){
		int a,b;
		cin>>a>>b;
		a--;
		b--;
		g[a].push_back(b);
		g[b].push_back(a);
	}
  int ans=0;
	if(k%2==0){
		for(int i=0;i<n;i++)
		  ans=max(ans,dfs(i,-1,0,k/2));
	}
	else{
		for(int i=0;i<n;i++)
			for(int j=0;j<g[i].size();j++)
				ans=max(ans,dfs(i,g[i][j],0,k/2)+dfs(g[i][j],i,0,k/2));
	}

	cout<<n-ans<<endl;

  return 0;
}


Compiler output:
a.cc:68:13: error: redefinition of 'std::vector<int> g [2000]'
   68 | vector<int> g[2000];
      |             ^
a.cc:16:13: note: 'std::vector<int> g [2000]' previously declared here
   16 | vector<int> g[2000];
      |             ^
a.cc:69:5: error: redefinition of 'int n'
   69 | int n,k;
      |     ^
a.cc:17:5: note: 'int n' previously declared here
   17 | int n,k;
      |     ^
a.cc:69:7: error: redefinition of 'int k'
   69 | int n,k;
      |       ^
a.cc:17:7: note: 'int k' previously declared here
   17 | int n,k;
      |       ^
a.cc:70:5: error: redefinition of 'int dfs(int, int, int, int)'
   70 | int dfs(int x,int pre,int d,int mx){
      |     ^~~
a.cc:18:5: note: 'int dfs(int, int, int, int)' previously defined here
   18 | int dfs(int x,int pre,int d,int mx){
      |     ^~~
a.cc:80:5: error: redefinition of 'int main()'
   80 | int main(){
      |     ^~~~
a.cc:28:5: note: 'int main()' previously defined here
   28 | int main(){
      |     ^~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <stdlib.h>
#include <queue>
#include <set> 
#include <string>
#include <string.h>
#include <cstring>
#include <stdio.h>
#include <fstream>
#include <stack>
#include <iomanip>
//#include <conio.h>
#include <windows.h>
#include <time.h>
#define rep(N) for(int i=0;i<N;i++)
#define ll long long 
#define pii pair<int,int>
#define For(I,N) for(int I=0;I<N;I++)
#define rep(N) for(int i=0;i<N;i++)
using namespace std;
vector <int> vec[2005];
vector <pair<int,int> >num[2005];
bool visit[2005];
int leaf[2005];
int dist[2005][2005];
int n,k;
vector <int> leave;

void bfs(int x)
{
	fill(visit,visit+n,0);
	queue <pair<int,int> >que;
	que.push(make_pair<int,int>(x,0));
	while(!que.empty())
	{
		int nx=que.front().first;
		int s=que.front().second;
		que.pop();
		for(int i=0;i<vec[nx].size();i++)
		{
			if(visit[vec[nx][i]]) continue;
			visit[vec[nx][i]]=true;
			dist[x][vec[nx][i]]=s+1;
			que.push(make_pair<int,int>(vec[nx][i],s+1));
		}
	}
}

int main()
{
//	freopen("input.txt","r",stdin);
	cin>>n>>k;
	int x,y;
	rep(n-1)
	{
		cin>>x>>y;
		vec[--x].push_back(--y);
		vec[y].push_back(x);
		leaf[x]++;
		leaf[y]++;
	}
	rep(n)
	{
		bfs(i);
	}
//	rep(n)
//	{
//		dist[i][i]=0;
//		for(int j=0;j<n;j++)
//		{
//			cout<<dist[i][j]<<"  ";
//		}
//		cout<<endl;
//	}
	int s=0,mini=0;
	bool ok[n];
	fill(ok,ok+n,0);
	rep(n)
	{
		dist[i][i]=0;
		if(ok[i]) continue;
		for(int j=0;j<n;j++)
		{
			if(ok[j]==1) continue;
			if(dist[i][j]>k) ok[j]=1;
		}
	}
	rep(n)
	{
		s+=ok[i];
	}
	cout<<s<<endl;
	return 0;
}

Compiler output:
a.cc:16:10: fatal error: windows.h: No such file or directory
   16 | #include <windows.h>
      |          ^~~~~~~~~~~
compilation terminated.
Language: Java

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Random;
import java.util.StringTokenizer;

public class AGC {
    public static void main (String[] args) {new AGC();}

    AGC() {
        FastScanner fs = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);

        int n = fs.nextInt();
        int[] a = fs.nextIntArray(2 * n);
        Arrays.sort(a);
        int res = 0;
        for(int i = 0; i < 2 * n; i += 2) {
            res += a[i];
        }
        out.println(res);

        out.close();
    }

    void sort (int[] a) {
        int n = a.length;
        for(int i = 0; i < 1000; i++) {
            Random r = new Random();
            int x = r.nextInt(n), y = r.nextInt(n);
            int temp = a[x];
            a[x] = a[y];
            a[y] = temp;
        }
        Arrays.sort(a);
    }

    class FastScanner {
        BufferedReader br;
        StringTokenizer st;
        public FastScanner() {
            try	{
                br = new BufferedReader(new InputStreamReader(System.in));
//                br = new BufferedReader(new FileReader("testdata.out"));
                st = new StringTokenizer("");
            } catch (Exception e){e.printStackTrace();}
        }
        public String next() {
            if (st.hasMoreTokens())	return st.nextToken();
            try {st = new StringTokenizer(br.readLine());}
            catch (Exception e) {e.printStackTrace();}
            return st.nextToken();
        }
        public int nextInt() {return Integer.parseInt(next());}
        public long nextLong() {return Long.parseLong(next());}
        public double nextDouble() {return Double.parseDouble(next());}

        public String nextLine() {
            String line = "";
            try {line = br.readLine();}
            catch (Exception e) {e.printStackTrace();}
            return line;
        }
        public Integer[] nextIntegerArray(int n) {
            Integer[] a = new Integer[n];
            for(int i = 0; i < n; i++) a[i] = nextInt();
            return a;
        }
        public int[] nextIntArray(int n) {
            int[] a = new int[n];
            for(int i = 0; i < n; i++) a[i] = nextInt();
            return a;
        }
        public char[] nextCharArray() {return nextLine().toCharArray();}
    }

}


Compiler output:
Main.java:8: error: class AGC is public, should be declared in a file named AGC.java
public class AGC {
       ^
1 error
Language: C

#include<stdio.h>
main()
{
int n,a[100],i.ans;
scanf("%d",&n);
i=0;
while(
scanf("%d ",&a[i]);
printf("%d",ans);
}

Compiler output:
main.c:2:1: error: return type defaults to 'int' [-Wimplicit-int]
    2 | main()
      | ^~~~
main.c: In function 'main':
main.c:4:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    4 | int n,a[100],i.ans;
      |               ^
main.c:6:1: error: 'i' undeclared (first use in this function)
    6 | i=0;
      | ^
main.c:6:1: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:19: error: expected ')' before ';' token
    8 | scanf("%d ",&a[i]);
      |                   ^
      |                   )
main.c:7:6: note: to match this '('
    7 | while(
      |      ^
main.c:10:1: error: expected expression before '}' token
   10 | }
      | ^
Language: C

#include<stdio.h>
int main(){
	int n,temp;
    scanf("%d",&n);
    
	/*	printf("n;%d",n);
		printf("\n");
		printf("k;%d",k);
		printf("\n");*/
    
    
    int i[n-1];
    int max[k-1];
    int count=0;
    int total=0;


   // for(int j=0;j<k;j++){
    //	max[j] = 0;
   // }


    for(int j=0;j<n;j++){
   	    scanf("%d",&temp);
    	i[j] = temp;
    }

/*    for(int j=0;j<n;j++){
		printf("i[%d];%d",j,i[j]);
		printf("\n");
    }*/
    
    
    while(count != n){
    	for(int m=0;m<n;m++){
	   		for(int l=0;l<n;l++){

				if(max[m] < i[l]){
					max[m] = i[l];
				}
    		}
    		
	   		for(int q=0;q<n;q++){
				if(max[m] == i[q]){
					i[q] = 0;
					break;
				}		    			
   			}
    		
    	
    	}
    	count = count+1;
    }

 /*   for(int j=0;j<k;j++){
		printf("max[%d];%d",j,max[j]);
		printf("\n");
    }

		printf("cou;%d",count);
		printf("\n");*/

    for(int p=0;p<n;p++){
		total = total + max[2*p+1];
   }
		printf("%d",total);
		printf("\n");

}

Compiler output:
main.c: In function 'main':
main.c:13:13: error: 'k' undeclared (first use in this function)
   13 |     int max[k-1];
      |             ^
main.c:13:13: note: each undeclared identifier is reported only once for each function it appears in
Language: Java


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class MysteriousLight {

	public static void main(String[] args) throws NumberFormatException, IOException {
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] s = br.readLine().split(" ");
		int n = Integer.parseInt(s[0]);
		int x = Integer.parseInt(s[1]);
		if(x>n/2){x=n-x;}
		int result = (n-x);
		
		while(true){
			int current = x;
			x=(n-x)%x;
			n = current;
			
			if(x == 0){break;}
			result += x;
		}
		result*=3;
		System.out.println(result);
	}

}


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

package main;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class MysteriousLight {

	public static void main(String[] args) throws NumberFormatException, IOException {
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] s = br.readLine().split(" ");
		int n = Integer.parseInt(s[0]);
		int x = Integer.parseInt(s[1]);
		int result = (n-x);
		
		while(true){
			int current = x;
			x=(n-x)%x;
			n = current;
			
			if(x == 0){break;}
			result += x;
		}
		result*=3;
		System.out.println(result);
	}

}


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

package main;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;

public class BBQEasy {

	public static void main(String[] args) throws NumberFormatException, IOException {
		// TODO Auto-generated method stub
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int N = Integer.parseInt(br.readLine());
		String[] s = br.readLine().split(" ");
		ArrayList<Integer> l = new ArrayList<Integer>();
		for(int i =0;i <2*N;i++){
			l.add(Integer.parseInt(s[i]));
		}
		Collections.sort(l);
		int result = 0;
		for(int i =0;i<2*N;i+=2){
			result += l.get(i) > l.get(i+1)? l.get(i+1):l.get(i);
		}
		System.out.println(result);
	}

}


Compiler output:
Main.java:9: error: class BBQEasy is public, should be declared in a file named BBQEasy.java
public class BBQEasy {
       ^
1 error
Language: C++

#include <iostream>
#include <algorithm>
#include <string>

int N_MAX = 1000;

int N;

using namespace std;

int main(int argc, const char * argv[]) {
    int L[N_MAX];
    int i;
    memset(L, 0, sizeof(L));
    
    cin >> N;
    for(i = 0; i < 2*N; i++) {
        cin >> L[i];
    }
    
    sort(L, L+2*N);
    
    int sum = 0;
    for(i = 0; i < N; i++) {
        sum += min(L[2*i],L[2*i+1]);
    }
    
    cout << sum << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:14:5: error: 'memset' was not declared in this scope
   14 |     memset(L, 0, sizeof(L));
      |     ^~~~~~
a.cc:3:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    2 | #include <algorithm>
  +++ |+#include <cstring>
    3 | #include <string>
Language: C++


#include <iostream>
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <vector>

#define INF 999999999

#define llong long long

#define pb(a) push_back(a)

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());

using namespace std;

typedef pair<int, int> P;
typedef pair<llong, llong> LP;
typedef pair<int, P> PP;
typedef pair<llong, LP> LPP;

int dy[]={0, 0, 1, -1, 0};
int dx[]={1, -1, 0, 0, 0};

int main(){
  int n=0;
  int l;
  vector<int> L;
  cin >> n;

  for(int i=0;i<2*n;i++){
    cin >>l;
    L.pb(l);;
  }
  VSORT(L);
  int ans = 0;
  for(int i=0;i<2*n;i+=2){
    ans += L[i];
  }

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

Compiler output:
a.cc: In function 'int main()':
a.cc:19:18: error: 'sort' was not declared in this scope; did you mean 'short'?
   19 | #define VSORT(v) sort(v.begin(), v.end());
      |                  ^~~~
a.cc:41:3: note: in expansion of macro 'VSORT'
   41 |   VSORT(L);
      |   ^~~~~
Language: C++

#include <algorithm>
    sort(l,l+n*2);
    
    while(count < n*2){
        ans += min(l[count],l[count+1]);
        count+=2;
    }
    cout << ans << "\n";
    return 0;
}

Compiler output:
a.cc:2:9: error: expected constructor, destructor, or type conversion before '(' token
    2 |     sort(l,l+n*2);
      |         ^
a.cc:4:5: error: expected unqualified-id before 'while'
    4 |     while(count < n*2){
      |     ^~~~~
a.cc:8:5: error: 'cout' does not name a type
    8 |     cout << ans << "\n";
      |     ^~~~
a.cc:9:5: error: expected unqualified-id before 'return'
    9 |     return 0;
      |     ^~~~~~
a.cc:10:1: error: expected declaration before '}' token
   10 | }
      | ^
Language: C++

#include <iostream>
using namespace std;

int main() {
    
    int n,count=0,ans;
    cin >> n;
    int l[n*2];
    for(int i = 0; i < n*2; i++){
        cin >> l[i];
    }
    
    sort(l,l+n*2);
    
    while(count < n*2){
        ans += min(l[count],l[count+1]);
        count+=2;
    }
    cout << ans << "\n";
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   13 |     sort(l,l+n*2);
      |     ^~~~
      |     short
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){

	int n;
	cin >> n;
	int arr[(2 * n) + 5];
	for(int i = 1; i <= 2 * n; ++i)
	{
		cin >> arr[i];
	}
	sort(arr + 1, arr + 1 + 2*n);
	int ans = 0;
	for(int i = 1; i <= n; ++i)
	{
		ans += arr[(2 * i) - 1];
		/cout << arr[2 * i - 1];
	}
	cout << ans;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:17: error: expected primary-expression before '/' token
   19 |                 /cout << arr[2 * i - 1];
      |                 ^
Language: C++

#include <iostream>
#include <cstdio>
#include <vector>
using namespace std;

int main(void)
{
	int n;
	scanf("%d", &n);
	n <<= 1;
	vector<int> a(n);
	for(int i = 0;i < n;i++) scanf("%d", &a[i]);
	sort(a.begin(), a.end());
	int res = 0;
	for(int i = 0;i < n;i += 2) res += a[i];
	printf("%d\n", res);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   13 |         sort(a.begin(), a.end());
      |         ^~~~
      |         short
Language: C++

#include <algorithm>
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cstdio>
#include <cmath>
using namespace std;

int n,l[105],ans;

void work()
{
	scanf("%d",&n),n*;
	for (int i=1; i<=n; i++)  scanf("%d",&l[i]);
	sort(l+1,l+n+1);
	for (int i=1; i<=n; i+=2)  ans+=l[i];
	printf("%d",ans);
}

int main()
{
	work();
	return 0;
}


Compiler output:
a.cc: In function 'void work()':
a.cc:13:26: error: expected primary-expression before ';' token
   13 |         scanf("%d",&n),n*;
      |                          ^
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<cstring>
#include<cstdio>
#include<cmath>
#include<cstdlib>
#include<ctime>
#include<queue>
#include<set>
using namespace std;
const int N=2e6;
int gi() {
	int w=0;bool q=1;char c=getchar();
	while ((c<'0'||c>'9') && c!='-') c=getchar();
	if (c=='-') q=0,c=getchar();
	while (c>='0'&&c <= '9') w=w*10+c-'0',c=getchar();
	return q? w:-w;
}
int p[N];
int head[N],next[N],to[N],d[N],tot,ans[N];
struct cmp{ inline bool operator () (const int &a,const int &b) const { return p[a]<p[b]; } };
struct cmp2{ inline bool operator () (const int &a,const int &b) const { return a>b; } };
inline void link(int a,int b) { d[to[++tot]=b]++,next[tot]=head[a],head[a]=tot; }
int main()
{
	int n=gi(),m=gi(),i,k,t;
	for (i=1;i<=n;i++) p[i]=gi();
	set<int,cmp>s;set<int>::iterator it;
	priority_queue<int,vector<int>,cmp2>q;
	for (i=1;i<=n;i++) {
		if (i>m) s.erase(i-m);
		it=s.insert(i).first;
		if (++it!=s.end()) link(i,*it);
	}
	s.clear();
	for (i=n;i;i--) {
		if (i+m<=n) s.erase(i+m);
		it=s.insert(i).first;
		if (++it!=s.end()) link(i,*it);
	}
	for (i=1;i<=n;i++) if (!d[i]) q.push(i);
	for (t=1;t<=n;t++) {
		k=q.top();q.pop();
		ans[k]=t;
		for (i=head[k];i;i=next[i]) if (!--d[to[i]]) q.push(to[i]);
	}
	for (i=1;i<=n;i++) printf("%d\n",ans[i]);
	return 0;
}


Compiler output:
a.cc: In function 'void link(int, int)':
a.cc:24:50: error: reference to 'next' is ambiguous
   24 | inline void link(int a,int b) { d[to[++tot]=b]++,next[tot]=head[a],head[a]=tot; }
      |                                                  ^~~~
In file included from /usr/include/c++/14/string:47,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:232:5: note: candidates are: 'template<class _InputIterator> constexpr _InputIterator std::next(_InputIterator, typename iterator_traits<_Iter>::difference_type)'
  232 |     next(_InputIterator __x, typename
      |     ^~~~
a.cc:21:13: note:                 'int next [2000000]'
   21 | int head[N],next[N],to[N],d[N],tot,ans[N];
      |             ^~~~
a.cc: In function 'int main()':
a.cc:46:36: error: reference to 'next' is ambiguous
   46 |                 for (i=head[k];i;i=next[i]) if (!--d[to[i]]) q.push(to[i]);
      |                                    ^~~~
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:232:5: note: candidates are: 'template<class _InputIterator> constexpr _InputIterator std::next(_InputIterator, typename iterator_traits<_Iter>::difference_type)'
  232 |     next(_InputIterator __x, typename
      |     ^~~~
a.cc:21:13: note:                 'int next [2000000]'
   21 | int head[N],next[N],to[N],d[N],tot,ans[N];
      |             ^~~~
Language: C++

/**********************
 * AGC001 -A
*********************************/
#include <iostream>
int main() {
int skewer_num = 0, ans = 0;
    std::cin >> skewer_num;
    skewer_num *= 2;
    int skewer_array[200];
    for (int i = 0; i < skewer_num; ++i) {
        std::cin >> skewer_array[i];
    }
    std::sort(skewer_array,skewer_array+skewer_num);
    for (int i = 0; i < skewer_num / 2; ++i) {
        ans += skewer_array[2*i];
    }
    printf("%d\n",ans);

}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   13 |     std::sort(skewer_array,skewer_array+skewer_num);
      |          ^~~~
      |          qsort
Language: C++

/**********************
 * AGC001 -A
*********************************/
#include <iostream>

int main() {
int skewer_num = 0, ans = 0;
    std::cin >> skewer_num;
    skewer_num *= 2;
    int skewer_array[skewer_num];
    for (int i = 0; i < skewer_num; ++i) {
        std::cin >> skewer_array[i];
    }
    std::sort(skewer_array,skewer_array + skewer_num);
    for (int i = 0; i < skewer_num / 2; ++i) {
        ans += skewer_array[2*i];
    }
    printf("%d\n",ans);

}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:10: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   14 |     std::sort(skewer_array,skewer_array + skewer_num);
      |          ^~~~
      |          qsort
Language: Java

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Tester {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		List<Integer> list = new ArrayList<>();
		
		in.nextInt();
		
		while(in.hasNextInt()) {
			list.add(in.nextInt());
		}
		
		Collections.sort(list, Collections.reverseOrder());
		
		int ans = 0;
		for(int i = 0; i < list.size(); i++) {
			ans += list.get(i);
			i++;
		}
		System.out.println(ans);
	}

}


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

#include <iostream>
#include <vector>

using namespace std;

int main() {
	int tmp, N, ans = 0;
	vector<int> L;
	cin >> N;
	for(int i=0;i<2*N;i++) {
		cin >> tmp;
		L.push_back(tmp);
	}
	sort(L.begin(), L.end());
	for(int i=0;i<2*N;i+=2) {
		ans += L[i];
	}
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |         sort(L.begin(), L.end());
      |         ^~~~
      |         short
Language: Java

import java.io.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.StringTokenizer;

/**
 * Created by vikas.k on 25/12/16.
 */
public class A {
    public static void main(String[] args){
        MyScanner sc = new MyScanner();
        out = new PrintWriter(new BufferedOutputStream(System.out));

        int n = sc.nextInt();

        List<Integer> lst = new ArrayList<>();
        for(int i=0;i<2*n;i++){
            lst.add(sc.nextInt());
        }

        Collections.sort(lst);
        int cnt = 0;
        for(int i=0;i<lst.size();i+=2){
            cnt+= Math.min(lst.get(i),lst.get(i+1));
        }
        out.println(cnt);
        out.close();
    }
    public static PrintWriter out;

    private static class MyScanner{
        BufferedReader bufferedReader;
        StringTokenizer stringTokenizer;

        private MyScanner(){
            bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        }

        private String next(){
            if(stringTokenizer == null || !stringTokenizer.hasMoreElements()){
                try {
                    stringTokenizer = new StringTokenizer(bufferedReader.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return stringTokenizer.nextToken();
        }

        private int nextInt(){
            return Integer.parseInt(next());
        }
        private String nextLine(){
            String ret= "";
            try {
                ret= bufferedReader.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return ret;
        }
    }
}


Compiler output:
Main.java:10: error: class A is public, should be declared in a file named A.java
public class A {
       ^
1 error
Language: Java

import java.util.Scanner;
import java.util.Arrays;

public class AA{
	public static void main(String[] args){
	Scanner kbs=new Scanner(System.in);
	int kushi=kbs.nextInt();
	int goukei=0;
	int[] nagasa=new int[2*kushi];
	for(int i=0;i<2*kushi;i++){
		nagasa[i]=kbs.nextInt();
	}
	Arrays.sort(nagasa);
	for(int i=0;i<2*kushi;i+=2){
		goukei+=nagasa[i];
	}
	System.out.println(goukei);
		}
		
	}


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

#include <iostream> int main(){;int n,ans=0;cin>>n;vector<Int> v(2*n);for(int i=0;i<2*n;++i){cin>>v[i];} sort(v.begin(),v.end());for(int i=1;i<2*n;i+=2){ans+=v[i];}cout<<ans<<endl;}

Compiler output:
a.cc:1:21: warning: extra tokens at end of #include directive
    1 | #include <iostream> int main(){;int n,ans=0;cin>>n;vector<Int> v(2*n);for(int i=0;i<2*n;++i){cin>>v[i];} sort(v.begin(),v.end());for(int i=1;i<2*n;i+=2){ans+=v[i];}cout<<ans<<endl;}
      |                     ^~~
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include<vector>
using namespace std;
int main(int argc, const char * argv[]) {
    int n = 0;
    int count = 0;
    vector<int> vec;
    cin >> n;
    int x = 0;
   // int i = 0;
    for (int j = 0; j< n*2 ; j++) {
        cin>>x;
        vec.push_back(x);

    }
    
    sort(vec.begin(),vec.end());
    for (int i = 0; i < n*2 ; i = i+2 ) {
        if(vec[i] >= vec[i+1])  count += vec[i+1];
        else count += vec[i];
    }
    cout<<count<<endl;
   // return count;
    
    
    // insert code here...
   // std::cout << "Hello, World!\n";
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:17:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   17 |     sort(vec.begin(),vec.end());
      |     ^~~~
      |     short
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
	cin >> n;
	vector<int> vec;
	for(int i(0); i < n; i++) {
		int x;
		cin >> x;
		vec.push_back(x);
	}
	int ans(0);
	sort(vec.begin(), vec.end());
	for(int i(0); i + 1 < (int)vec.size(); i += 2) {
		ans += min(vec[i], vec[i + 1]);
	}
	cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:16: error: 'n' was not declared in this scope; did you mean 'yn'?
    4 |         cin >> n;
      |                ^
      |                yn
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cstdio>
#include <queue>
#include "math.h"
#include <complex>
#include <iomanip>
#define ifor(i,a,b) for (int i=(a);i<(b);i++)
#define rfor(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define rep(i,n) for (int i=0;i<(n);i++)
#define rrep(i,n) for (int i=(n)-1;i>=0;i--)
using namespace std;
typedef long double ld;
typedef long long int  lli;
typedef complex <double> P;
const double eps = 1e-11;
int vex[4]={1,0,-1,0};
int vey[4]={0,1,0,-1};
int gcd(int a,int b){
	if(a%b == 0)return b;
	return gcd(b,a%b);
}
int main(){
	int N ,X;
	cin >> N >> X;
	cout << 3(N-gcd(N,X))<<endl;
return 0 ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:18: error: expression cannot be used as a function
   28 |         cout << 3(N-gcd(N,X))<<endl;
      |                 ~^~~~~~~~~~~~
Language: C++

#include<iostream>
#include<vector>
#include<cstdio>
#include<algorithm>
using namespace std;
vector<int> edge[2010];
int dis[2010];
bool used[2010];
int n, k;

int main() {
	int  a, b,ma=100000;
	cin >> n >> k;
	for (int i = 0; i < n - 1; i++) {
		scanf("%d %d", &a, &b);
		a--; b--;
		edge[a].push_back(b);
		edge[b].push_back(a);
	}
	if (k % 2 == 0) {
		for (int i = 0; i < n; i++) {
			evencalc(i, i, 0);
			ma = min(ma, dis[i]);
			for (int i = 0; i < n; i++)used[i] = false;
		}
		cout << ma << endl;
	}
	else {
		for (int i = 0; i < n; i++) {
			if (edge[i].empty())continue;
			for (int j = 0; j < edge[i].size; j++) {
				ma = min(ma, oddcalc(i, edge[i][j]));
			}
		}
		cout << ma << endl;
	}
}

void evencalc(int t, int s, int count) {
	int r;
	if (count > (int)k / 2)dis[s]++;
	if (edge[t].empty())return;
	for (int i = 0; i < edge[t].size() && !used[edge[t][i]]; i++) {
		r = edge[t][i];
		used[edge[t][i]] = true;
		evencalc(r, s, count+1);
	}
}

int oddcalc(int t,int s) {
	used[t] = used[s] = true;
	evencalc(t, t, 0);
	evencalc(s, s, 0);
	return dis[t]+ dis[s];
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:25: error: 'evencalc' was not declared in this scope
   22 |                         evencalc(i, i, 0);
      |                         ^~~~~~~~
a.cc:31:53: error: invalid use of member function 'std::vector<_Tp, _Alloc>::size_type std::vector<_Tp, _Alloc>::size() const [with _Tp = int; _Alloc = std::allocator<int>; size_type = long unsigned int]' (did you forget the '()' ?)
   31 |                         for (int j = 0; j < edge[i].size; j++) {
      |                                             ~~~~~~~~^~~~
      |                                                         ()
a.cc:32:46: error: 'oddcalc' was not declared in this scope
   32 |                                 ma = min(ma, oddcalc(i, edge[i][j]));
      |                                              ^~~~~~~
Language: C++

#include <iostream>
using namespace std;

#define MAX_N 100
int N;
int L[2*MAX_N];

int main(){
	cin >> N;
	for(int i=0; i<2*N; i++) cin >> L[i];
	sort(L, L+2*N);
	int sol=0;
	for(int i=0; i<N; i++) sol+=L[2*i];
	cout << sol << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   11 |         sort(L, L+2*N);
      |         ^~~~
      |         short
Language: C++

#include<iostream>
#include<cstdio>
#include<cmath>
#include<cstring>
#include<vector>
#include<queue>
#include<map>
#include<list>
#include<map>
#include<stack>
#include<cstdlib>

#define P(p) cout << (p) << endl;
#define rep(i, n) for(int i = 0; i < n; i++)

using namespace std;

int main(){
  int n,num,sum = 0;
  vector <int> v;
  cin >> n;
  for( int i = 0 ; i < n*2 ; i++ ){
    cin >> num;
    v.push_back(num);
  }

  sort(v.begin(),v.end());

  for( int i = 0 ; i < n*2 ; i+=2 ){
    //cout << v[i] << endl;
    sum += v[i];
  }

  P(sum);

}
			   
    
			   
				


Compiler output:
a.cc: In function 'int main()':
a.cc:27:3: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   27 |   sort(v.begin(),v.end());
      |   ^~~~
      |   sqrt
Language: C++

#include <iostream>
using namespace std;
int main(){
    int n;
    cin >> n;
    n *= 2;
    int l[n];
    for(int i = 0; i < n; i++){
        cin >> l[i];
    }
    sort(l, l + n);
    
    int total = 0;
    for(int i = 0; i < n; i += 2){
        total += min(l[i], l[i + 1]);
    }
    
    cout << total << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   11 |     sort(l, l + n);
      |     ^~~~
      |     short
Language: Java

import java.util.*;

public class Main{

public static void main(String[] args){
Scanner s = new Scanner(System.in);
int n = s.nextInt();
int ans = 0;
int[] a = new int[2*n];
for(int i=0;i<2*n;i++) a[i] = s.nextInt();
Arrays.sort(a);

for(int i=0;i<2n;i+=2) ans += Math.min(a[i],a[i+1]);

System.out.println(ans);
}

}

Compiler output:
Main.java:13: error: ';' expected
for(int i=0;i<2n;i+=2) ans += Math.min(a[i],a[i+1]);
               ^
Main.java:13: error: ')' expected
for(int i=0;i<2n;i+=2) ans += Math.min(a[i],a[i+1]);
                ^
Main.java:13: error: ';' expected
for(int i=0;i<2n;i+=2) ans += Math.min(a[i],a[i+1]);
                     ^
3 errors
Language: C++

#include <iostream>
using namespace std;
 
int main() {
    int n; cin >> n;
    int l[101];
    for(int i=0; i<2*n; i++) cin >> l[i];
    sort(l, l+2*n);
     
    int ret = 0;
    for(int i=0; i<n; i++) ret += min(l[2*i], l[2*i+1]);
    cout << ret << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'sort' was not declared in this scope; did you mean 'short'?
    8 |     sort(l, l+2*n);
      |     ^~~~
      |     short
Language: C++

#include <iostream>
using namespace std;

int main() {
  int n, a[205], ans = 0;
  cin >> n;
  n *= 2;
  for (int i = 0; i < n; i++) cin >> a[i];
  sort(a, a+n);
  for (int i = 0; i < n; i += 2) ans += a[i];
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    9 |   sort(a, a+n);
      |   ^~~~
      |   short
Language: C

include<stdio.h>

int main(void)
{
  int num;
  int length[100] = {};
  int i, j;
  int temp;
  int sum=0;

  scanf("%d", &num);

  for (i=0;i<num*2;i++){
    scanf("%d", &length[i]);
  }

  for(i=0;i<num*2;i++){
    for(j=i+1;j<num*2;j++){
      if(length[i] < length[j]){
	temp = length[i];
	length[i] = length[j];
	length[j] = temp;
      }
    }
  }
  sum = length[1];
  for(i=1;i<num+3;i+=2){
    sum += length[i+2];
  }

  printf("%d\n", sum);

  return 0;
}


Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
Language: Java

import java.util.*;
 
public class Main{
public static void main(String[]args){
Scanner sc=new Scanner(System.in);
  
int n =sc.nextInt();
int[] l=new int[n*2];  
  
for(int i=0; i<l.length; i++){
l[i]=sc.nextInt();
}
Arrays.sort(l); 　　　//昇順にソート
  
int ans=0;
for(int j=0; j<l.length; j+=2){
ans +=Math.min(l[j],l[j+1]);　
}
System.out.println(ans);
}
}

Compiler output:
Main.java:13: error: illegal character: '\u3000'
Arrays.sort(l); ???//??????
                ^
Main.java:13: error: illegal character: '\u3000'
Arrays.sort(l); ???//??????
                 ^
Main.java:13: error: illegal character: '\u3000'
Arrays.sort(l); ???//??????
                  ^
Main.java:17: error: illegal character: '\u3000'
ans +=Math.min(l[j],l[j+1]);?
                            ^
4 errors
Language: Java

import java.util.*;
 
public class Main{
public static void main(String[]args){
 
  Scanner sc=new Scanner(System.in);
  
  int n =sc.nextInt();
  int[] l=new int[n*2];  
  
  for(int i=0; i<l.length; i++){
   l[i]=sc.nextInt();
}


  Arrays.sort(l);
  
  int ans=0;
  for(int j=0; j<l.length; j+=2){
    ans +=Math.min(l[j],l[i+1]);
}
System.out.println(ans);


}}

Compiler output:
Main.java:20: error: cannot find symbol
    ans +=Math.min(l[j],l[i+1]);
                          ^
  symbol:   variable i
  location: class Main
1 error
Language: C++

#include <iostream>
using namespace std;

int main(int argc, const char * argv[]) {
    int N;
    cin >> N;
    int n = N*2;
    int L[n];
    for(int i=0;i<n;i++){
        cin >> L[i];
    }
    sort(L,L+n);
    int maxFood = 0;
    for(int i=0;i<N;i++){
        int index = i*2;
        maxFood += min(L[index],L[index+1]);
    }
    cout << maxFood << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:12:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   12 |     sort(L,L+n);
      |     ^~~~
      |     short
Language: Java

import java.util.*;
 
class Main{
 void main(String[]args){
 
  Scanner sc=new Scanner(System.in);
  
  int yousosu =sc.nextInt();
  int l[]=new int[yousosu];  
  
  for(int i=0; i<l.length; i++){
   l[i]=sc.nextInt();
}
  Arrays.sort(l);

  for(int j=0; j<l.length-1; j++){
    int ans=0;
    ans +=Math.min(l[j],l[j]+1]);
    System.out.println(ans);
}



}}

Compiler output:
Main.java:18: error: ')' or ',' expected
    ans +=Math.min(l[j],l[j]+1]);
                              ^
1 error
Language: Java

import java.util.*;
 
class Main{
 void main(String[]args){
 
  Scanner sc=new Scanner(System.in);
  
  int nagasa =sc.nextInt();
  int l[]=new int[nagasa];  
  
  for(int i=0; i<length; i++){
   l[i]=sc.nextInt();
}
  Arrays.sort(l);

  for(int i=0; i<length-1; i++){
    int ans=0;
    ans +=Math.min(l[i],l[i+1]);
    System.out.println(ans);
}



}}

Compiler output:
Main.java:11: error: cannot find symbol
  for(int i=0; i<length; i++){
                 ^
  symbol:   variable length
  location: class Main
Main.java:16: error: cannot find symbol
  for(int i=0; i<length-1; i++){
                 ^
  symbol:   variable length
  location: class Main
2 errors
Language: Java

import java.util.*;
 
class Main{
 void main(String[]args){
 
  Scanner sc=new Scanner(System.in);
  
  int nagasa =sc.nextInt();
  int l[]=new int[nagasa];  
  
  for (int =0; i<length; i++){
   l[i]=sc.nextInt();
}
  Arrays.sort(l);

  for(int i=0; i<length-1; i++){
    int ans=0;
    ans +=Math.min(l[i],l[i+1]);
    System.out.println(ans);
}



}}

Compiler output:
Main.java:11: error: not a statement
  for (int =0; i<length; i++){
       ^
Main.java:11: error: ';' expected
  for (int =0; i<length; i++){
          ^
Main.java:11: error: illegal start of expression
  for (int =0; i<length; i++){
           ^
Main.java:11: error: not a statement
  for (int =0; i<length; i++){
                ^
Main.java:11: error: ')' expected
  for (int =0; i<length; i++){
                       ^
Main.java:11: error: ';' expected
  for (int =0; i<length; i++){
                            ^
6 errors