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

#include <iostream>
#include <string>
using namespace std;

int main (){
  int N,A
  cin >> N;
  cin >> A;
  if (A >= (N - 500*(N/500))){
    cout << "Yes" <<endl;
  }else{
    cout << "No" <<endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'cin'
    7 |   cin >> N;
      |   ^~~
a.cc:8:10: error: 'A' was not declared in this scope
    8 |   cin >> A;
      |          ^
Language: C++

//#define _USE_MATH_DEFINES
//#include <iostream>
//#include <string>
//#include <list>
//#include <vector>
//#include <queue>
//#include <algorithm>
//#include <climits>
//#include <cstring>
//#include <cmath>
//#include <stack>
//#include <iomanip>
//#include <tuple>
//#include <functional>
//#include <cfloat>
//#include <map>
//
//#define int long long
//#define CONTAINS(v,n) (find((v).begin(), (v).end(), (n)) != (v).end())
//#define SORT(v) sort((v).begin(), (v).end())
//#define RSORT(v) sort((v).rbegin(), (v).rend())
//#define ARY_SORT(a, size) sort((a), (a)+(size))
//#define MAX(a,b) (((a) > (b)) ? (a) : (b))
//#define MIN(a,b) (((a) < (b)) ? (a) : (b))
//#define REMOVE(v,a) (v.erase(remove((v).begin(), (v).end(), (a)), (v).end()))
//#define REVERSE(v) (reverse((v).begin(), (v).end()))
//#define LOWER_BOUND(v,a) (lower_bound((v).begin(), (v).end(), (a)))
//#define UPPER_BOUND(v,a) (upper_bound((v).begin(), (v).end(), (a)))
//#define REP(i, n) for (int (i) = 0; (i) < (n); (i)++)
//#define CONTAINS_MAP(m, a) (m).find((a)) != m.end()
//using namespace std;
//
//int N;
//int a[200];
//
//void func(int n)
//{
//	cin >> N;
//	REP(i, N)
//	{
//		cin >> a[i];
//	}
//
//}
//
//
//
//


#define _USE_MATH_DEFINES
#include <iostream>
#include <string>
#include <list>
#include <vector>
#include <queue>
#include <algorithm>
#include <climits>
#include <cstring>
#include <cmath>
#include <stack>
#include <iomanip>
#include <tuple>
#include <functional>
#include <cfloat>
#include <map>

#define int long long
#define CONTAINS(v,n) (find((v).begin(), (v).end(), (n)) != (v).end())
#define SORT(v) sort((v).begin(), (v).end())
#define RSORT(v) sort((v).rbegin(), (v).rend())
#define ARY_SORT(a, size) sort((a), (a)+(size))
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define REMOVE(v,a) (v.erase(remove((v).begin(), (v).end(), (a)), (v).end()))
#define REVERSE(v) (reverse((v).begin(), (v).end()))
#define LOWER_BOUND(v,a) (lower_bound((v).begin(), (v).end(), (a)))
#define UPPER_BOUND(v,a) (upper_bound((v).begin(), (v).end(), (a)))
#define REP(i, n) for (int (i) = 0; (i) < (n); (i)++)
#define CONTAINS_MAP(m, a) (m).find((a)) != m.end()
using namespace std;

unsigned main()
{
	int N, A;
	cin >> N >> A;
	if (N % 500 <= A)
	{
		cout << "Yes" << endl;
	}
	else
	{
		cout << "No" << endl;
	}
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include <iostream>

using namespace std;

int main (){
    int n ,b;
    cin >> n >> b;
    int c = n % 500 ;
    if ( c <= a ) puts ("Yes");
    else puts ("No");
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: 'a' was not declared in this scope
    9 |     if ( c <= a ) puts ("Yes");
      |               ^
Language: C++

fn read_line() -> String {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).unwrap();
    s
}

fn read_ints() -> Vec<i32> {
    read_line()
        .split_whitespace()
        .map(|w| w.parse().unwrap())
        .collect()
}

fn main() {
    let N = read_ints()[0];
    let A = read_ints()[0];

    println!("{}", if N % 500 <= A { "YES" } else { "NO" });
}


Compiler output:
a.cc:1:1: error: 'fn' does not name a type
    1 | fn read_line() -> String {
      | ^~
a.cc:7:1: error: 'fn' does not name a type
    7 | fn read_ints() -> Vec<i32> {
      | ^~
a.cc:14:1: error: 'fn' does not name a type
   14 | fn main() {
      | ^~
Language: C++

#include <cassert>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <iomanip>
#include <iostream>
#include <istream>
#include <map>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
using namespace std;
using ll = long long;
long long;
class Solution {
public:
    void solve(std::istream& in, std::ostream& out) {
        ll n, a;
        in >> n >> a;
        out << (a ? "Yes" : "No") << endl;
    }
};
void solve(std::istream& in, std::ostream& out) {
    out << std::setprecision(12);
    Solution solution;
    solution.solve(in, out);
}
#include <fstream>
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    istream& in = cin;
    ostream& out = cout;
    solve(in, out);
    return 0;
}


Compiler output:
a.cc:21:6: error: declaration does not declare anything [-fpermissive]
   21 | long long;
      |      ^~~~
Language: C++

///
// File:  a.go
// Author: ymiyamoto
//
// Created on Sun Feb 18 21:00:18 2018
//
package main

import (
	"fmt"
)

func main() {
	var N, A int
	fmt.Scan(&N, &A)
	if N <= A || (N-A)%500 == 0 {
		fmt.Println("Yes")
	} else {
		fmt.Println("No")
	}
}


Compiler output:
a.cc:7:1: error: 'package' does not name a type
    7 | package main
      | ^~~~~~~
Language: C++

#include <iostream>
#include <cstdio>
#include <vector>
#define _USE_MATH_DEFINES
#include <math.h>
#include <cstring>
#include <numeric>
#include <algorithm>
#include <stdlib.h>
#include <functional>
#include <string>
#include <list>
#include <fstream>
#include <iomanip>
#include <array>
#include <map>
#include <queue>
#include <limits.h>
#include <set>
#include <stack>
#include <random>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <nmmintrin.h>
#include <chrono>
#define rep(i,s,n) for(int i = (s); (n) > i; i++)
#define REP(i,n) rep(i,0,n)
#define RANGE(x,a,b) ((a) <= (x) && (x) <= (b))
#define DUPLE(a,b,c,d) (RANGE(a,c,d) || RANGE(b,c,d) || RANGE(c,a,b) || RANGE(d,a,b))
#define INCLU(a,b,c,d) (RANGE(a,c,d) && (b,c,d))
#define PW(x) ((x)*(x))
#define ALL(x) (x).begin(), (x).end()
#define MODU 1000000007
#define bitcheck(a,b)   ((a >> b) & 1)
#define bitset(a,b)      ( a |= (1 << b))
#define bitunset(a,b)    (a &= ~(1 << b))
#define MP(a,b) make_pair((a),(b))
#define Manh(a,b) (abs((a).first-(b).first) + abs((a).second - ((b).second))
#define pritnf printf
#define scnaf scanf
#define itn int
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
ll gcd(ll a, ll b) {
	if (b == 0) return a;
	return gcd(b, a%b);
}
template<typename A, size_t N, typename T>
void Fill(A(&array)[N], const T &val) {
	std::fill((T*)array, (T*)(array + N), val);
}

signed main()
{
	int n,a;
  cin >> n >> a;
  
  cout <(<(n%500) <= a ? "Yes" : "No") << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:61:10: error: expected primary-expression before '<' token
   61 |   cout <(<(n%500) <= a ? "Yes" : "No") << endl;
      |          ^
Language: C++

# A

N = int(input())
A = int(input())

if N % 500 <= A:
    print("Yes")
else:
    print("No")

Compiler output:
a.cc:1:3: error: invalid preprocessing directive #A
    1 | # A
      |   ^
a.cc:3:1: error: 'N' does not name a type
    3 | N = int(input())
      | ^
Language: C++

#define _USE_MATH_DEFINES
#include <iostream>
#include <string>
#include <list>
#include <vector>
#include <queue>
#include <algorithm>
#include <climits>
#include <cstring>
#include <cmath>
#include <stack>
#include <iomanip>
#include <tuple>
#include <functional>
#include <cfloat>
#include <map>

#define int long long
#define CONTAINS(v,n) (find((v).begin(), (v).end(), (n)) != (v).end())
#define SORT(v) sort((v).begin(), (v).end())
#define RSORT(v) sort((v).rbegin(), (v).rend())
#define ARY_SORT(a, size) sort((a), (a)+(size))
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define REMOVE(v,a) (v.erase(remove((v).begin(), (v).end(), (a)), (v).end()))
#define REVERSE(v) (reverse((v).begin(), (v).end()))
#define LOWER_BOUND(v,a) (lower_bound((v).begin(), (v).end(), (a)))
#define UPPER_BOUND(v,a) (upper_bound((v).begin(), (v).end(), (a)))
#define REP(i, n) for (int (i) = 0; (i) < (n); (i)++)
#define CONTAINS_MAP(m, a) (m).find((a)) != m.end()
using namespace std;

void func(int n)
{
	int N, A;
	cin >> N >> A;
	if (N % 500 <= A)
	{
		cout << "Yes" << endl;
	}
	else
	{
		cout << "No" << endl;
	}
}






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<cstdio>
#include<cstdlib>
#include<algorithm>
#include<vector>
#include<string>
#include<sstream>
#include<iomanip>
#include<utility>
#include<cmath>
#include<set>
#include<list>
#include<queue>
#include<stack>
#include<deque>
#include<map>
#include<set>
#include<cstring>
#include<iterator>
#include<bitset>
#include<assert.h>
//#include<chrono>
//#include<time.h>
//#include<windows.h>
using namespace std;
 
//#define int ll
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,pair<int,int> > PP;
typedef vector<int> VI;
typedef vector<long long int> VL;
//static const int MOD = 1000000007;
//static const int INF = 2147483647;
//static const long long INF = 9223372000000000000;
//static const long long INF = 9223372000000000000/2;
//static const int INF = 1000010000;
//int dx4[4] = {0,1,0,-1}, dy4[4] = {-1,0,1,0};
//int dx5[5] = {-1,0,0,0,1}, dy5[5] = {0,-1,0,1,0};
//int dx8[8] = {-1,0,1,1,1,0,-1,-1}, dy8[8] = {1,1,1,0,-1,-1,-1,0};
//int dx9[9] = {-1,0,1,1,1,0,-1,-1,0}, dy9[9] = {1,1,1,0,-1,-1,-1,0,0};
#define PB push_back
#define MP make_pair
#define MT make_tuple
#define FI first
#define SE second
#define NP next_permutation
#define PQ priority_queue
#define UB upper_bound
#define LB lower_bound
#define SZ(a) int((a).size())
#define LEN(a) int((a).length())
#define SORT(c) sort((c).begin(),(c).end())
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,x) for(int i=0;i<(int)(x);i++)
#define REP1(i,x) for(int i=1;i<=(int)(x);i++)
#define RREP(i,x) for(int i=((int)(x)-1);i>=0;i--)
#define RREP1(i,x) for(int i=((int)(x));i>0;i--)
#define ALL(x) (x).begin(),(x).end()
struct edge {int /*from,*/to,cost;};

signed main(){
    int a,b,c;
    string s,t;

    cin  >> n >> a;
    n -= 500;
    if(n>a) puts("No");
    else puts("Yes");
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:66:13: error: 'n' was not declared in this scope
   66 |     cin  >> n >> a;
      |             ^
Language: Java

// inputに入力データ全体が入る
function Main(input) {
	// 1行目がinput[0], 2行目がinput[1], …に入る
	input = input.split("\n");
	tmp = input[1].split(" ");
  //配列（ソートで比較する用の宣言）
  var cards = [];

	//文字列から10進数に変換するときはparseIntを使います
	var totalNum = parseInt(input[0], 10);
  for (i = 0; i <= totalNum - 1; i++) {
    cards[i] = parseInt(tmp[i], 10);
  }

  for (i = 0; i < cards.length - 1; i++) {
    for (j = 0; j < cards.length - 1; j++) {
      if (cards[j] > cards[j  1]) {
        var total = cards[j];
        cards[j] = cards[j + 1];
        cards[j + 1] = total;
      }
    }
  }

  console.log(cards[cards.length - 1] - cards[0]);

}
//*この行以降は編集しないでください（標準入出力から一度に読み込み、Mainを呼び出します）
Main(require("fs").readFileSync("/dev/stdin", "utf8"));


Compiler output:
Main.java:17: error: not a statement
      if (cards[j] > cards[j  1]) {
                              ^
Main.java:2: error: unnamed classes are a preview feature and are disabled by default.
function Main(input) {
^
  (use --enable-preview to enable unnamed classes)
Main.java:2: error: <identifier> expected
function Main(input) {
                   ^
Main.java:7: error: illegal start of expression
  var cards = [];
              ^
Main.java:17: error: ']' expected
      if (cards[j] > cards[j  1]) {
                            ^
Main.java:17: error: ';' expected
      if (cards[j] > cards[j  1]) {
                               ^
Main.java:29: error: class, interface, enum, or record expected
Main(require("fs").readFileSync("/dev/stdin", "utf8"));
^
7 errors
Language: C++

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

int main() {
  int N, a, b, judge;
  cin >> N;
  
  vector<int> vec(N);
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i); 
  }
  
  sort(vec.begin(), vec.end());
  reverse(vec.begin(), vec.end());
  
  judge = 0;
  
  for (int i = 0; i < N; i++) {
    if (judge % = 0) {
      a += vec.at(i);
    }
    else {
      b += vec.at(i);
    }
    judge++;
  }
  
  cout << a - b << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:17: error: expected primary-expression before '=' token
   19 |     if (judge % = 0) {
      |                 ^
Language: C++

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

int main() {
  int N, a, b, judge;
  cin >> N;
  
  vector<int> vec(N);
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i); 
  }
  
  sort(vec.begin(), vec.end());
  reverse(vec.begin(), vec.end());
  
  judge = 0;
  
  for (int i = 0; i < N; i++) {
    if (judge % = 0) {
      a += vec.at(i)
    }
    else {
      b += vec.at(i);
    }
    judge++;
  }
  
  cout << a - b << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:17: error: expected primary-expression before '=' token
   19 |     if (judge % = 0) {
      |                 ^
a.cc:20:21: error: expected ';' before '}' token
   20 |       a += vec.at(i)
      |                     ^
      |                     ;
   21 |     }
      |     ~
Language: C++

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

int main(){
  int N;
  cin >> N;
  vector<int>card(N);

  for(int i = 0; i < N; i++){
    int a_i;
    cin >> a_i;

    card.at(0) = a_i;
  }

  sort(card.begin(), card.end());
  
  int A = 0
  for(int j = 0; j < N; j += 2){
    A += card.at(j);
  }

  int B = 0;
  for(int k = 1; K < N; k += 2){
    B += card.at(k);
  }

  cout << A - B << endl;




}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:3: error: expected ',' or ';' before 'for'
   19 |   for(int j = 0; j < N; j += 2){
      |   ^~~
a.cc:19:18: error: 'j' was not declared in this scope
   19 |   for(int j = 0; j < N; j += 2){
      |                  ^
a.cc:24:18: error: 'K' was not declared in this scope
   24 |   for(int k = 1; K < N; k += 2){
      |                  ^
Language: C++

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

int main(){
    
      int n,Alice=0,Bob=0;
      cin>>n;
      int a[n];
      
      for(int i=0;i<n; i++){
        cin>>a[i];
      }

      sort(a,a+N);

      for(int i=0;i<n;i++){
        if(i%2 == 0){
          Bob+= a[i];
        }
        else{
          Alice+= a[i];
        }
      }
     
      cout<<Bob-Alice<<endl;
      
      return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: 'N' was not declared in this scope
   14 |       sort(a,a+N);
      |                ^
Language: C++

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

int main() {
  int n, a, b;
  a =0, b=0;
  
  vector<int>vect(n);
  for(int i = 0; i<n; i++){
    cin>> vect.at(i);
  }
  
  sort(vect.begin(), vect.end());  
  reverse(vect.begin(), vect.end());
  
  for(int i = 0; i<n; i +=2){
    a += vect.at(i);
    b += vect.at(i+1)
  }
  
  cout<< a - b<< endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:22: error: expected ';' before '}' token
   18 |     b += vect.at(i+1)
      |                      ^
      |                      ;
   19 |   }
      |   ~
Language: C++

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

int main() {
  int N = 0;
  vector<int> a(N);
  for(int i = 0; i < N; i++){
    cin >> a.at(i);
  }
  
  sort(a.begin(),a.end());
  reverse(a.begin(),a.end());
  
  int x = 0;
 for(int j = 0; j < N; j += 2 ){
   x  += a.at(k);
 }
  int y = 0;
    for(int k = 1; k < N; k += 2){
      y += a.at(j);
    }
  cout << x - y << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:15: error: 'k' was not declared in this scope
   16 |    x  += a.at(k);
      |               ^
a.cc:20:17: error: 'j' was not declared in this scope
   20 |       y += a.at(j);
      |                 ^
Language: C++

#include "pch.h"
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

using namespace std;

int main(void)
{
	int N;
	cin >> N;
	vector <int> vec(N);
	for (int i = 0; i < N; i++)
	{
		cin >> vec.at(i);
	}
	int A = 0, B = 0;
	 sort (vec.begin(), vec.end());
	 reverse(vec.begin(), vec.end());
	 for (int i = 0; i < N; i++)
	 {
		 if (i == 0 || (i % 2) == 0)
			 A += vec.at(i);
		 else if (i == 1 || (i % 2) == 1)
		 {
			 B += vec.at(i);
		 }
	 }
	 cout << A - B << endl;
}


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

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N;
  cin >> N;
  vector<int> C(N);
  int A,B;
  int z,count;
  
  for(int i = 0; i < N; i++){
    cin >> C.at(i);
  }
  
  for(int i = 0; i < N; i++){
    z = 0;
    count = 0;
    for(int j = 0; j < N; j++){
      if(z < C.at(j)){
        z = C.at(j);
        count = j;
      }
    }
    
    C.at(count) = 0;
    if(i % 2 == 0;){
     A = A + z;
    }else{
     B = B + z;
    }

    }

   cout << A - B << endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:19: error: expected primary-expression before ')' token
   26 |     if(i % 2 == 0;){
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
     
int main() {
  int N;
  vector<int>A;
 

  cin >> N;
  for (int i = 0; i < N; i++){
    cin >> A.at[i];
  }
  sort( A.begin(), A.end());
  reverse( A.begin(), A.end());
  int ALICE=0;
  int BOB=0;

  for (int i = 0; i < N; i+=2){
    ALICE +=A.at(i);
  }
    for (int i = 1; i < N; i+=2){
    BOB +=A.at(i);
  }
  cout << ALICE - BOB << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   11 |     cin >> A.at[i];
      |                ^
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] array = new int[100];
        for(int i = 0 ; i < n ; i ++){
          array[i] = sc.nextInt();
        }
      	Arrays.sort(array, Comparator.reverseOrder());
        int a = 0 ;
        int b = 0 ;
      	
      	for(int i = 0 ; i < n ; i ++){
          if(i % 2 == 0){
          	a += array[i];
          }else{
          	b += array[i];
          }
        }
       System.out.print(a-b);
      
    }
}




Compiler output:
Main.java:11: error: no suitable method found for sort(int[],Comparator<T#1>)
      	Arrays.sort(array, Comparator.reverseOrder());
      	      ^
    method Arrays.<T#2>sort(T#2[],Comparator<? super T#2>) is not applicable
      (inference variable T#2 has incompatible bounds
        equality constraints: int
        upper bounds: Object)
    method Arrays.<T#3>sort(T#3[],int,int,Comparator<? super T#3>) is not applicable
      (cannot infer type-variable(s) T#3
        (actual and formal argument lists differ in length))
  where T#1,T#2,T#3 are type-variables:
    T#1 extends Comparable<? super T#1>
    T#2 extends Object declared in method <T#2>sort(T#2[],Comparator<? super T#2>)
    T#3 extends Object declared in method <T#3>sort(T#3[],int,int,Comparator<? super T#3>)
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] array = new int[100];
        for(int i = 0 ; i < n ; i ++){
          array[i] = sc.nextInt();
        }
      	Arrays.sort(array, Collections.reverseOrder());
        int a = 0 ;
        int b = 0 ;
      	
      	for(int i = 0 ; i < n ; i ++){
          if(i % 2 == 0){
          	a += array[i];
          }else{
          	b += array[i];
          }
        }
       System.out.print(a-b);
      
    }
}




Compiler output:
Main.java:11: error: no suitable method found for sort(int[],Comparator<Object>)
      	Arrays.sort(array, Collections.reverseOrder());
      	      ^
    method Arrays.<T#1>sort(T#1[],Comparator<? super T#1>) is not applicable
      (inference variable T#1 has incompatible bounds
        equality constraints: int
        upper bounds: Object)
    method Arrays.<T#2>sort(T#2[],int,int,Comparator<? super T#2>) is not applicable
      (cannot infer type-variable(s) T#2
        (actual and formal argument lists differ in length))
  where T#1,T#2 are type-variables:
    T#1 extends Object declared in method <T#1>sort(T#1[],Comparator<? super T#1>)
    T#2 extends Object declared in method <T#2>sort(T#2[],int,int,Comparator<? super T#2>)
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] array = new int[100];
        for(int i = 0 ; i < n ; i ++){
          array[i] = sc.nextInt();
        }
      	Arrays.sort(array, Collections.reverseOrder());
        int a = 0 ;
        int b = 0 ;
      	
      	for(int i = 0 ; i < n ; i ++){
          if(i % 2 = 0){
          	a += array[i];
          }else{
          	b += array[i];
          }
        }
       System.out.print(a-b);
      
    }
}




Compiler output:
Main.java:11: error: no suitable method found for sort(int[],Comparator<Object>)
      	Arrays.sort(array, Collections.reverseOrder());
      	      ^
    method Arrays.<T#1>sort(T#1[],Comparator<? super T#1>) is not applicable
      (inference variable T#1 has incompatible bounds
        equality constraints: int
        upper bounds: Object)
    method Arrays.<T#2>sort(T#2[],int,int,Comparator<? super T#2>) is not applicable
      (cannot infer type-variable(s) T#2
        (actual and formal argument lists differ in length))
  where T#1,T#2 are type-variables:
    T#1 extends Object declared in method <T#1>sort(T#1[],Comparator<? super T#1>)
    T#2 extends Object declared in method <T#2>sort(T#2[],int,int,Comparator<? super T#2>)
Main.java:16: error: unexpected type
          if(i % 2 = 0){
               ^
  required: variable
  found:    value
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
2 errors
Language: Java

import java.util.*;

public class Main{
	public static void main(String[] args){
      Scanner sc = new Scanner(System.in);
      int a = 4;  
      
      List<Integer> split = new ArrayList<>();
        for (int i = 0; i < n; i++) {
	        int buf = sc.nextInt();
	        split.add(buf);
        }
        
        int resultsA = 0;
        int resultsB = 0;
        int max = 0;
        int index = 0;
        int size = split.size();
        String current = "A";
        int count = 0;
        Boolean boo = true;
        
        while(boo){
            for(int i = 0; i < size ; i++ ){
                if(max<=split.get(i)){
                    max = split.get(i);
                    index = i;
                }
            }
            split.remove(index);
            size -= 1;
            if(current.equals("A")){
                resultsA += max;
                current = "B";
            }else{
                resultsB += max;
                current = "A";
            }
            max = 0;
            if(size==0){
                boo = false;
            }
        }
        
        count = resultsA - resultsB;
	    
    System.out.println(count);
  }
}

Compiler output:
Main.java:9: error: cannot find symbol
        for (int i = 0; i < n; i++) {
                            ^
  symbol:   variable n
  location: class Main
1 error
Language: C++

#include<iostream>
#include<math.h>
#include<string>
#include<vector>
using namespace std;

#define rep(i,n) for(i=0;i<n;i++)
int main(){
    int i;
    int N;
    int ans1=0,ans2=0;
    cin>>N;
    vector<int> v;
    rep(i,N){
        int a;
        cin>>a;
        v.push_back(a);
    }
    sort(v.begin(),v.end(),greater<int>());
    rep(i,N){
        if(i%2==0){
            ans1+=v[i];
        }else{
            ans2+=v[i];
        }
    }
    cout<<ans1-ans2<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   19 |     sort(v.begin(),v.end(),greater<int>());
      |     ^~~~
      |     sqrt
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N;
  cin >> N;
  vector<int> card(N);
  sort(card.vec.begin(), card.end());
  reverse(card.vec.begin(), card.end());
  
  int alice = 0;
  int bob = 0;
  for (int i = 0; i < N; i++) {
    if(i % 2 == 0){
      alice += card[i];
    }else{
      bob += card[i];
    }
  }
  cout << alice - bob << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'class std::vector<int>' has no member named 'vec'
    8 |   sort(card.vec.begin(), card.end());
      |             ^~~
a.cc:9:16: error: 'class std::vector<int>' has no member named 'vec'
    9 |   reverse(card.vec.begin(), card.end());
      |                ^~~
Language: C++

int main(){
  int N;
  cin >> N;
  vector<int> nums(N);
  
  for(int i=0; i<N; i++){
    cin >> nums.at(i);
  }
  sort(nums.begin(), nums.end());
  reverse(nums.begin(), nums.end());
  
  int delta = 0;
  for(int i=0; i<N; i++){
    if(i % 2 == 0) delta += nums.at(i);
    else delta -= nums.at(i);
  }
  
  cout << delta << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> N;
      |   ^~~
a.cc:4:3: error: 'vector' was not declared in this scope
    4 |   vector<int> nums(N);
      |   ^~~~~~
a.cc:4:10: error: expected primary-expression before 'int'
    4 |   vector<int> nums(N);
      |          ^~~
a.cc:7:12: error: 'nums' was not declared in this scope
    7 |     cin >> nums.at(i);
      |            ^~~~
a.cc:9:8: error: 'nums' was not declared in this scope
    9 |   sort(nums.begin(), nums.end());
      |        ^~~~
a.cc:9:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    9 |   sort(nums.begin(), nums.end());
      |   ^~~~
      |   short
a.cc:10:3: error: 'reverse' was not declared in this scope
   10 |   reverse(nums.begin(), nums.end());
      |   ^~~~~~~
a.cc:18:3: error: 'cout' was not declared in this scope
   18 |   cout << delta << endl;
      |   ^~~~
a.cc:18:20: error: 'endl' was not declared in this scope
   18 |   cout << delta << endl;
      |                    ^~~~
Language: C++


using namespace std;
int main(){
int N;
cin>>N;
vector<int> a(N);
for(int i=0; i<N; i++)
{cin>>a.at(i);}
  sort(a.begin(),a.end())
    cout>>a.at(N-1)-a.at(0)>>endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:1: error: 'cin' was not declared in this scope
    5 | cin>>N;
      | ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | 
a.cc:6:1: error: 'vector' was not declared in this scope
    6 | vector<int> a(N);
      | ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | 
a.cc:6:8: error: expected primary-expression before 'int'
    6 | vector<int> a(N);
      |        ^~~
a.cc:8:7: error: 'a' was not declared in this scope
    8 | {cin>>a.at(i);}
      |       ^
a.cc:9:8: error: 'a' was not declared in this scope
    9 |   sort(a.begin(),a.end())
      |        ^
a.cc:9:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    9 |   sort(a.begin(),a.end())
      |   ^~~~
      |   short
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
int N;
cin>>N;
vector<int> a(N);
for(int i=0; i<N; i++)
{cin>>a.at(i);}
  sort(a.begin(),a.end())
    cout>>a.at(N-1)-a.at(0)>>endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:26: error: expected ';' before 'cout'
    9 |   sort(a.begin(),a.end())
      |                          ^
      |                          ;
   10 |     cout>>a.at(N-1)-a.at(0)>>endl;
      |     ~~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <functional>
using namespace std;
int main(){
int N;
cin>>N;
vector<int> a(N);
for(int i=0; i<N; i++)
{cin>>a.at(i);}
  sort(a.begin(),a.end())
    cout>>a.at(N-1)-a.at(0)>>endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:26: error: expected ';' before 'cout'
   11 |   sort(a.begin(),a.end())
      |                          ^
      |                          ;
   12 |     cout>>a.at(N-1)-a.at(0)>>endl;
      |     ~~~~
Language: C++

using namespace std;
int main(){
  int N;
  cin >> N;
  vector<int> a(N);
  for (int i=0; i<N; i++)
  {cin >> a.at(i);}
  sort(a.begin(),a.end());
  cout<<a.at(N-1)-a.at(0)<<endl;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin >> N;
      |   ^~~
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:5:3: error: 'vector' was not declared in this scope
    5 |   vector<int> a(N);
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | using namespace std;
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int> a(N);
      |          ^~~
a.cc:7:11: error: 'a' was not declared in this scope
    7 |   {cin >> a.at(i);}
      |           ^
a.cc:8:8: error: 'a' was not declared in this scope
    8 |   sort(a.begin(),a.end());
      |        ^
a.cc:8:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    8 |   sort(a.begin(),a.end());
      |   ^~~~
      |   short
a.cc:9:3: error: 'cout' was not declared in this scope
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |   ^~~~
a.cc:9:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:28: error: 'endl' was not declared in this scope
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |                            ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

using namespace std;
int main(){
 int N;
  cin>>N;
  vector<int> a(N);
  for (int i=0; i<N; i++)
  {cin>>a.at(i);}
  sort(a.begin(),a.end());
  cout<<a.at(N-1)-a.at(0)<<endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin>>N;
      |   ^~~
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:5:3: error: 'vector' was not declared in this scope
    5 |   vector<int> a(N);
      |   ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | using namespace std;
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int> a(N);
      |          ^~~
a.cc:7:9: error: 'a' was not declared in this scope
    7 |   {cin>>a.at(i);}
      |         ^
a.cc:8:8: error: 'a' was not declared in this scope
    8 |   sort(a.begin(),a.end());
      |        ^
a.cc:8:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    8 |   sort(a.begin(),a.end());
      |   ^~~~
      |   short
a.cc:9:3: error: 'cout' was not declared in this scope
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |   ^~~~
a.cc:9:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:28: error: 'endl' was not declared in this scope
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |                            ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

using namespace std;
int main(){
 int N;
  cin>>N;
  vecrtor<int> a(N);
  for (int i=0; i<N; i++)
  {cin>>a.at(i);}
  sort(a.begin(),a.end());
  cout<<a.at(N-1)-a.at(0)<<endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin>>N;
      |   ^~~
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:5:3: error: 'vecrtor' was not declared in this scope
    5 |   vecrtor<int> a(N);
      |   ^~~~~~~
a.cc:5:11: error: expected primary-expression before 'int'
    5 |   vecrtor<int> a(N);
      |           ^~~
a.cc:7:9: error: 'a' was not declared in this scope
    7 |   {cin>>a.at(i);}
      |         ^
a.cc:8:8: error: 'a' was not declared in this scope
    8 |   sort(a.begin(),a.end());
      |        ^
a.cc:8:3: error: 'sort' was not declared in this scope; did you mean 'short'?
    8 |   sort(a.begin(),a.end());
      |   ^~~~
      |   short
a.cc:9:3: error: 'cout' was not declared in this scope
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |   ^~~~
a.cc:9:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:28: error: 'endl' was not declared in this scope
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |                            ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

using namespace std;
int main{
 int N;
  cin>>N;
  vecrtor<int> a(N);
  for (int i=0; i<N; i++)
  {cin>>a.at(i)}
  sort(a.begin(),a.end());
  cout<<a.at(N-1)-a.at(0)<<endl;
  
}

Compiler output:
a.cc:2:5: error: cannot declare '::main' to be a global variable
    2 | int main{
      |     ^~~~
a.cc:3:2: error: expected primary-expression before 'int'
    3 |  int N;
      |  ^~~
a.cc:3:2: error: expected '}' before 'int'
a.cc:2:9: note: to match this '{'
    2 | int main{
      |         ^
a.cc:4:3: error: 'cin' does not name a type
    4 |   cin>>N;
      |   ^~~
a.cc:5:3: error: 'vecrtor' does not name a type
    5 |   vecrtor<int> a(N);
      |   ^~~~~~~
a.cc:6:3: error: expected unqualified-id before 'for'
    6 |   for (int i=0; i<N; i++)
      |   ^~~
a.cc:6:17: error: 'i' does not name a type
    6 |   for (int i=0; i<N; i++)
      |                 ^
a.cc:6:22: error: 'i' does not name a type
    6 |   for (int i=0; i<N; i++)
      |                      ^
a.cc:8:7: error: expected constructor, destructor, or type conversion before '(' token
    8 |   sort(a.begin(),a.end());
      |       ^
a.cc:9:3: error: 'cout' does not name a type
    9 |   cout<<a.at(N-1)-a.at(0)<<endl;
      |   ^~~~
a.cc:11:1: error: expected declaration before '}' token
   11 | }
      | ^
Language: Java

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


public class Cardgamefortwo {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int N=sc.nextInt();
		Integer a[]=new Integer[N];
		int i;
		int sum=0;
		for(i=0;i<N;++i) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a,Comparator.reverseOrder());
		if(N%2==0) {
			for(i=0;i<N/2;++i) {
				sum+=(a[2*i]-a[2*i+1]);
			}}
		if(N%2==1) {
			for(i=0;i<N/2;++i) {
			sum+=(a[2*i]-a[2*i+1]);}
			sum+=a[N-1];
		}
			
			System.out.println(sum);
			
		
	}

}


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

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

int main (){
    int N;
    cin >> N;
    vector<int> vec(N);
    for(int i=0; i<N; i++){
        cin >> vec.at(i);
    }
    sort(vec.begin(),vec.end());
    auto v = std::unique(vec.begin(),vec.end());
    cout << v.size() << endl;



}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:15: error: 'class __gnu_cxx::__normal_iterator<int*, std::vector<int> >' has no member named 'size'
   14 |     cout << v.size() << endl;
      |               ^~~~
Language: C++

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

int main (){
    int N;
    cin >> N;
    vector<int> vec(N);
    for(int i=0; i<N; i++){
        cin >> vec.at(i);
    }
    sort(vec.begin(),vec.end());
    std::uniq(vec.begin(),vec.end());
    cout << vec.size() << endl;



}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: 'uniq' is not a member of 'std'; did you mean 'unique'?
   13 |     std::uniq(vec.begin(),vec.end());
      |          ^~~~
      |          unique
Language: C++

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

int main (){
    int N,A=0,B=0;
    cin >> N;
    vector<int> vec(N);
    for (int i=0; i<N; i++){
        cin >> vec.at(i)
    }
    sort(vec.begin(), vec.end());
    reverse(vec.begin(), vec.end());

    for(int i=0; i<N; i++){
        if (i % 2 == 0 ){
            A += vec.at(i);
        }else{
            B += vec.at(i);
        }
    }
    cout << A - B << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:25: error: expected ';' before '}' token
    9 |         cin >> vec.at(i)
      |                         ^
      |                         ;
   10 |     }
      |     ~
Language: C++

#include "bits/stdc++.h"
#include "atcoder/all"
#define rep(i,n) for(int i = 0; i < (n); ++i)
using namespace std;
using namespace atcoder;
typedef long long int ll;
typedef pair<int, int> P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	int n;
	cin >> n;
	vector<ll> a(n);
	rep(i,n) cin >> a[i];
	sort(a.rbegin(), a.rend());
	ll ans = 0;
	rep(i,n){
		if(i%2 == 0) ans += a[i];
		else ans -= a[i];
	}
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc:2:10: fatal error: atcoder/all: No such file or directory
    2 | #include "atcoder/all"
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
//二項係数の計算
int nCr(int A, int B) {
    ll ans = 1;
    for (int i = 0; i < B; i++) {
        ans *= A - i;
    }
    for (int i = 0; i < B; i++) {
        ans /= i + 1;
    }
  
    return ans;
}
int main() {
    int N;
    cin>>N;
    vector<int>A(N);
    rep(i,N){
        cin>>A[i];
    }
    sort(A.rbegin(),A.rend());
    int a=0;
    int b=0;
    rep(i,N/2+N%2){
        if(i+1<N/2N%2){
        a+=A[i];
        b+=A[i+1];
        i++;
        }
        else{
          a+=A[i];
        }
    }
  cout<<a-b<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:18: error: unable to find numeric literal operator 'operator""N'
   29 |         if(i+1<N/2N%2){
      |                  ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
//二項係数の計算
int nCr(int A, int B) {
    ll ans = 1;
    for (int i = 0; i < B; i++) {
        ans *= A - i;
    }
    for (int i = 0; i < B; i++) {
        ans /= i + 1;
    }
  
    return ans;
}
int main() {
    int N;
    cin>>n;
    vector<int>A(N);
    rep(i,N){
        cin>>A[i];
    }
    sort(A.rbegin(),A.rend());
    int a=0;
    int b=0;
    rep(i,N/2+N%2){
        if(i+1<N/2N%2){
        a+=A[i];
        b+=A[i+1];
        i++;
        }
        else{
          a+=A[i];
        }
    }
  cout<<a-b<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:10: error: 'n' was not declared in this scope
   20 |     cin>>n;
      |          ^
a.cc:29:18: error: unable to find numeric literal operator 'operator""N'
   29 |         if(i+1<N/2N%2){
      |                  ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N,A,B;
  A=0;
  B=0;
  cin >> N;
  vector <int> vec (N);
  for(int i=0; i<N; i++){
    cin >> vec.at(N);
  }
  sort(vec.begin(),vec.end());
  for (int i=0; i<N; i++){
    if(i=0){
      A+=vec.at(i);
    }
    else if(i%2=0){
      A+=vec.at(i);
    }
    else{
      B+=vec.at(i);
    }
  }
  cout << A-B << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:14: error: lvalue required as left operand of assignment
   17 |     else if(i%2=0){
      |             ~^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N,A,B;
  A=0;
  B=0;
  cin >> N;
  vector <int> vec (N);
  for(int i=0; i<N; i++){
    cin >> vec.at(N);
  }
  sort(vec.begin(),vec.end());
  for (i=0; i<N; i++){
    if(i=0){
      A+=vec.at(i);
    }
    else if(i%2=0){
      A+=vec.at(i);
    }
    else{
      B+=vec.at(i);
    }
  }
  cout << A-B << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:8: error: 'i' was not declared in this scope
   13 |   for (i=0; i<N; i++){
      |        ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N,A,B;
  A=0;
  B=0;
  cin >> N;
  vector <int> vec (N)
  for(int i=0; i<N; i++){
    cin >> vec.at(N);
  }
  sort(vec.begin(),vec.end());
  for (i=0; i<N; i++){
    if(i=0){
      A+=vec.at(i);
    }
    else if(i%2=0){
      A+=vec.at(i);
    }
    else{
      B+=vec.at(i);
    }
  }
  cout << A-B << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: expected ',' or ';' before 'for'
    9 |   for(int i=0; i<N; i++){
      |   ^~~
a.cc:9:16: error: 'i' was not declared in this scope
    9 |   for(int i=0; i<N; i++){
      |                ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int N,A,B;
  A=0;
  B=0;
  cin >> N;
  vector <int> vec (N)
  for(int i=0;i<N;i++){
    cin >> vec.at(N);
  }
  sort(vec.begin(),vec.end());
  for (i=0;i<N;i++){
    if(i=0){
      A+=vec.at(i);
    }
    else if(i%2=0){
      A+=vec.at(i);
    }
    else{
      B+=vec.at(i);
    }
  }
  cout << A-B << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: expected ',' or ';' before 'for'
    9 |   for(int i=0;i<N;i++){
      |   ^~~
a.cc:9:15: error: 'i' was not declared in this scope
    9 |   for(int i=0;i<N;i++){
      |               ^
Language: C++

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

int main() {
  int N, max, k = 0, l = 1, sum = 0,;
  cin >> N;
  vector<int> vec(N);
  for (int i = 0; i < N; i++)
    cin >> vec.at(i);
  for (int i = 0; i < N; i++){
    max = 0;
    for (int j = 0; j < N; j++){
      if (max < vec.at(j)){
        max = vec.at(j);
        k = j;
      }
    }
    sum += max * l;
    l *= -1;
    vec.at(k) = 0;
  }
  cout << sum << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:5:37: error: expected unqualified-id before ';' token
    5 |   int N, max, k = 0, l = 1, sum = 0,;
      |                                     ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
    int N;
    cin >> N;
    vector<int> a[N];
    for (int i = 0; i < N; i++) {
        cin >> a.at(i);
    }

    int alice = 0;
    int bob = 0;

    sort(a.begin(), a.end());
    bool count = true;
    for (int i = 0; i < N; i++) {
        if (count){
            alice += a[i];
            count = false;
        }else{
            bob += a[i];
            count = true;
        }
    }

    cout << alice - bob << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:18: error: request for member 'at' in 'a', which is of non-class type 'std::vector<int> [N]'
    8 |         cin >> a.at(i);
      |                  ^~
a.cc:14:12: error: request for member 'begin' in 'a', which is of non-class type 'std::vector<int> [N]'
   14 |     sort(a.begin(), a.end());
      |            ^~~~~
a.cc:14:23: error: request for member 'end' in 'a', which is of non-class type 'std::vector<int> [N]'
   14 |     sort(a.begin(), a.end());
      |                       ^~~
a.cc:18:19: error: no match for 'operator+=' (operand types are 'int' and 'std::vector<int>')
   18 |             alice += a[i];
      |             ~~~~~~^~~~~~~
a.cc:21:17: error: no match for 'operator+=' (operand types are 'int' and 'std::vector<int>')
   21 |             bob += a[i];
      |             ~~~~^~~~~~~
Language: C++

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

int main(){
  int N;
  cin >> N;
  vector<int>vec(N);
  for(int i:vec) cin >>vec.at(i);
  sort(vec.begin(),vec.end());
  reverse(vec.begin(),vec.end());
  int t=0,s=0;
  if(N/2==0){
    t=vec(vec[0],vec[N-2],1);
    s=vec(vec[1],vec[N-1],1);
    cout<<t-s<<endl;
  }
  else{
    t=vec(vec[0],vec[N-1]);
    s=vec(vec[1],vec[N-2]);
    cout<< t-s<<endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: no match for call to '(std::vector<int>) (__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, int)'
   13 |     t=vec(vec[0],vec[N-2],1);
      |       ~~~^~~~~~~~~~~~~~~~~~~
a.cc:14:10: error: no match for call to '(std::vector<int>) (__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, int)'
   14 |     s=vec(vec[1],vec[N-1],1);
      |       ~~~^~~~~~~~~~~~~~~~~~~
a.cc:18:10: error: no match for call to '(std::vector<int>) (__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&)'
   18 |     t=vec(vec[0],vec[N-1]);
      |       ~~~^~~~~~~~~~~~~~~~~
a.cc:19:10: error: no match for call to '(std::vector<int>) (__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&)'
   19 |     s=vec(vec[1],vec[N-2]);
      |       ~~~^~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,i,al,bo;
  al=0;
  bo=0;
  cin >> n;
vector<int> a(n);
  for(i=0;i<n;++i)
  {
  cin >> a.at(i);
  }
sort(a.begin(),a.end());
reverce(a.begin(),a.end());
  for(i=0;i<n;++i)
  {
  if(i%2==0) al=al+a.at(i);
  else bo=bo+a.at(i);
  }
cout << al-bo;
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:1: error: 'reverce' was not declared in this scope
   15 | reverce(a.begin(),a.end());
      | ^~~~~~~