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

#include<bits\stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main(){
    int N ; cin >> N;
    vector<int> a(N), Alice, Bob;
    rep(i, N) cin >> a.at(i);
    int MAX = 0;
    
    int count = 0;
    int maxCount = 0;
    int sumA = 0, sumB = 0;
    while(true){
        count++;
        rep(i, N){
            MAX = max(MAX, a.at(i));
            if(MAX == a.at(i)) maxCount = i;
        }
        if(count == N + 1) break;
        if(count % 2 == 1) Alice.push_back(MAX);
        if(count % 2 == 0) Bob.push_back(MAX);
        MAX = 0;
        a.at(maxCount) = 0;
    }
    for(int i = 0; i < Alice.size(); i++){
        sumA += Alice.at(i);         
    }
    for (int i = 0; i < Bob.size(); i++){
        sumB += Bob.at(i);
    }
    int minus = sumA - sumB;
    cout << minus << endl;
}

Compiler output:
a.cc:1:9: fatal error: bits\stdc++.h: No such file or directory
    1 | #include<bits\stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: 'A' was not declared in this scope
    6 |   cin >> A;
      |          ^
Language: C++

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

int main(){
    #define rep(i,n) for (int i=0;i < (int)(n);i++)

    int N;
    cin >> N;

    vector<int> a(N);
    rep(i,N){
        cin >> a.at(i);
    }

    sort(a.begin(),a.end());
    reverse(a.bein(),a.end());

    int AP=0;
    int BP=0;

    rep(i,N){
        if(i%2==0){
            AP += a.at(i);
        }
        else{
            BP += a.at(i);
        }
    }

    cout << AP - BP;
    cout << endl;
    

}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:15: error: 'class std::vector<int>' has no member named 'bein'; did you mean 'begin'?
   16 |     reverse(a.bein(),a.end());
      |               ^~~~
      |               begin
Language: C++

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

int main(){
    #define rep(i,n) for (int i=0;i < (int)(n);i++)

    int N;
    cin >> N;

    vector<int> a(N);
    rep(i,N){
        cin >> a.at(i);
    }

    sort(a.begin(),a.end());
    reverse(a.bein(),a,end());

    int AP=0;
    int BP=0;

    rep(i,N){
        if(i%2==0){
            AP += a.at(i);
        }
        else{
            BP += a.at(i);
        }
    }

    cout << AP - BP;
    cout << endl;
    

}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:15: error: 'class std::vector<int>' has no member named 'bein'; did you mean 'begin'?
   16 |     reverse(a.bein(),a,end());
      |               ^~~~
      |               begin
a.cc:16:27: error: no matching function for call to 'end()'
   16 |     reverse(a.bein(),a,end());
      |                        ~~~^~
In file included from /usr/include/c++/14/bits/algorithmfwd.h:39,
                 from /usr/include/c++/14/bits/stl_algo.h:59,
                 from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/initializer_list:99:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::end(initializer_list<_Tp>)'
   99 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
/usr/include/c++/14/initializer_list:99:5: note:   candidate expects 1 argument, 0 provided
In file included from /usr/include/c++/14/string:53,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/bits/range_access.h:74:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/14/bits/range_access.h:74:5: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/bits/range_access.h:85:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/14/bits/range_access.h:85:5: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/bits/range_access.h:106:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
  106 |     end(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~
/usr/include/c++/14/bits/range_access.h:106:5: note:   candidate expects 1 argument, 0 provided
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166:
/usr/include/c++/14/valarray:1249:5: note: candidate: 'template<class _Tp> _Tp* std::end(valarray<_Tp>&)'
 1249 |     end(valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/14/valarray:1249:5: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/valarray:1265:5: note: candidate: 'template<class _Tp> const _Tp* std::end(const valarray<_Tp>&)'
 1265 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/14/valarray:1265:5: note:   candidate expects 1 argument, 0 provided
Language: C++

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

int main() {
    int N; cin >> N;
    vector<int> a(0, 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, bob = 0;
    for (int i = 0; i < n; i++) {
        if (i%2 == 0) { 
            alice += a.at(i); 
        } else {
            bob += a.at(i);
        }
    }
    cout << alice - bob << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:25: error: 'n' was not declared in this scope
   13 |     for (int i = 0; i < n; i++) {
      |                         ^
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:7:17: error: expected ';' before 'a'
    7 |   vector<int>(N) a;
      |                 ^~
      |                 ;
a.cc:9:16: error: 'a' was not declared in this scope
    9 |         cin >> a.at(i);
      |                ^
a.cc:11:8: error: 'a' was not declared in this scope
   11 |   sort(a.begin(), a.end(), greater<int>());
      |        ^
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);
  }
  a.sort(a.at(0), a.at(N-1), greater<int>());
  int A =0 , B=0;
  for(int i = 0; i < N; i++){
  	if(i % 2 == 0){
    	A += a.at(i);
    }
    else{
    	B += a.at(i);
    }
  }
  cout << A - B << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'class std::vector<int>' has no member named 'sort'
   11 |   a.sort(a.at(0), a.at(N-1), greater<int>());
      |     ^~~~
Language: C++

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

int main() {
  int N, M;
  cin >> N;
  
  int Alice=0, Bob=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());
  for (int i=0; i<N ; i++) {
    if (i%2==0) {
      Alice += a.at(i);
    else 
      Bob += a.at(i);
    }
  }
  
  cout << Alice - Bob << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: expected '}' before 'else'
   17 |     else
      |     ^~~~
a.cc:15:17: note: to match this '{'
   15 |     if (i%2==0) {
      |                 ^
a.cc: At global scope:
a.cc:22:3: error: 'cout' does not name a type
   22 |   cout << Alice - Bob << endl;
      |   ^~~~
a.cc:24:1: error: expected declaration before '}' token
   24 | }
      | ^
Language: C++

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

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

}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:8: error: 'i' was not declared in this scope
   10 |   for (i=0; i<N; i++)
      |        ^
a.cc:17:5: error: expected '}' before 'else'
   17 |     else
      |     ^~~~
a.cc:15:17: note: to match this '{'
   15 |     if (i%2==0) {
      |                 ^
a.cc: At global scope:
a.cc:22:3: error: 'cout' does not name a type
   22 |   cout << Alice - Bob << endl;
      |   ^~~~
a.cc:24:1: error: expected declaration before '}' token
   24 | }
      | ^
Language: C++

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

int main() {
  int N, M;
  cin >> N;
  
  int Alice=0, Bob=0;
  vetcor<int> a(N);
  for (i=0; i<N; i++)
    cin >> a.at(i);
  sort(a.begin(), a.end());
  reverse(a.begin(), a.end());
  for (int i=0; i<N ; i++) {
    if (i%2==0) {
      Alice += a.at(i);
    else 
      Bob += a.at(i);
    }
  }
  
  cout << Alice - Bob << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'vetcor' was not declared in this scope
    9 |   vetcor<int> a(N);
      |   ^~~~~~
a.cc:9:10: error: expected primary-expression before 'int'
    9 |   vetcor<int> a(N);
      |          ^~~
a.cc:10:8: error: 'i' was not declared in this scope
   10 |   for (i=0; i<N; i++)
      |        ^
a.cc:11:12: error: 'a' was not declared in this scope
   11 |     cin >> a.at(i);
      |            ^
a.cc:12:8: error: 'a' was not declared in this scope
   12 |   sort(a.begin(), a.end());
      |        ^
a.cc:17:5: error: expected '}' before 'else'
   17 |     else
      |     ^~~~
a.cc:15:17: note: to match this '{'
   15 |     if (i%2==0) {
      |                 ^
a.cc: At global scope:
a.cc:22:3: error: 'cout' does not name a type
   22 |   cout << Alice - Bob << endl;
      |   ^~~~
a.cc:24:1: error: expected declaration before '}' token
   24 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,N) for(int i=0; i<(int)(N); i++);
 
int main(){
  int k,B=0;A=0;
  cin>>k;
  vector <int> card(k);
  rep(i,k){
    cin>>card.at(i);
    B+=card.at(i);
  }
  if(N>=2)
    B-=k/(k-1);
  else
    B=card.at(0);
  cout<<B<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: 'A' was not declared in this scope
    6 |   int k,B=0;A=0;
      |             ^
a.cc:10:18: error: 'i' was not declared in this scope
   10 |     cin>>card.at(i);
      |                  ^
a.cc:13:6: error: 'N' was not declared in this scope
   13 |   if(N>=2)
      |      ^
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main(){
    int Alice_sum = 0;
    int Bob_sum = 0;

    int N; cin >> N;

    vector<int> v(N);

    for(int i = 0; i < N; i++) cin >> v.at(i);
    

    sort(v.begin(), v.end(),greater<int>()); //降順にしてる

    for(int i = 0; i < N; i++){
        if(i%2 == 0)    Alice_sum += v.at(i);
        else Bob_sum += v.at(i);
    }

    cout << (Alice_sum - Bob_sum) << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   17 |     sort(v.begin(), v.end(),greater<int>()); //降順にしてる
      |     ^~~~
      |     short
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main(){
    long Alice_sum = 0;
    long Bob_sum = 0;

    int N; cin >> N;

    vector<int> v(N);

   

    for(int i = 0; i < N; i++){
        cin >> v.at(i);
    }

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

    for(int i = 0; i < N; i++){
        if(i%2 == 0){
            Alice_sum += v.at(i);
        }else{
            Bob_sum += v.at(i);
        }
    }

    cout << (Alice_sum - Bob_sum) << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   20 |     sort(v.begin(), v.end());
      |     ^~~~
      |     short
a.cc:21:5: error: 'reverse' was not declared in this scope
   21 |     reverse(v.begin(),v.end());
      |     ^~~~~~~
Language: C++

#include<iostream>
#include<vector>



using namespace std;

int main(){
    long Alice_sum = 0;
    long Bob_sum = 0;

    int N; cin >> N;

    vector<int> v(N);

    cin >> v.at(0);

    for(int i = 1; i < N; i++){
        cin >> v.at(i);
    }

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

    for(int i = 0; i < N; i++){
        if(i%2 == 0){
            Alice_sum += v.at(i);
        }else{
            Bob_sum += v.at(i);
        }
    }

    cout << (Alice_sum - Bob_sum) << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   22 |     sort(v.begin(), v.end());
      |     ^~~~
      |     short
a.cc:23:5: error: 'reverse' was not declared in this scope
   23 |     reverse(v.begin(),v.end());
      |     ^~~~~~~
Language: C++

#include<iostream>
#include<vector>



using namespace std;

int main(){
    long Alice_sum = 0;
    long Bob_sum = 0;

    int N; cin >> N;

    vector<int> v(N);

    cin >> v.at(0);

    for(int i = 1; i < N; i++){
        cin >> v.at(i);
    }

    sort(v.begin(), v.end(),greater<int>());

    for(int i = 0; i < N; i++){
        if(i%2 == 0){
            Alice_sum += v.at(i);
        }else{
            Bob_sum += v.at(i);
        }
    }

    cout << (Alice_sum - Bob_sum) << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   22 |     sort(v.begin(), v.end(),greater<int>());
      |     ^~~~
      |     short
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  cin >> N;
  int A, B, N;
  
  A = 0;
  B = 0;
  // 100要素の配列で初期化
  vector<int> vec(N);
 
  // 100個の入力を受け取る
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i - 1);
    
    if ((i - 1) % 2 == 0){
A += vec.at(i - 1);
    }
    else{
B += vec.at(i - 1);
    }
    
  }
 
  cout << (A - B) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: 'N' was not declared in this scope
    5 |   cin >> N;
      |          ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A, B, N;
  // 100要素の配列で初期化
  vector<int> vec(N);
 cin >> N;
  // 100個の入力を受け取る
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i);
    
    if (i / 2 == 0){
A += vec.at(i);
    }
    else{
B += vec.at(i);
    }
    
  }
 
  cout << (B - A;) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:17: error: expected ')' before ';' token
   22 |   cout << (B - A;) << endl;
      |           ~     ^
      |                 )
a.cc:22:18: error: expected primary-expression before ')' token
   22 |   cout << (B - A;) << endl;
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A, B;
  // 100要素の配列で初期化
  vector<int> vec(N);
 
  // 100個の入力を受け取る
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i);
    
    if (i / 2 == 0){
A += vec.at(i);
    }
    else{
B += vec.at(i);
    }
    
  }
 
  cout << B - A << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: 'N' was not declared in this scope
    7 |   vector<int> vec(N);
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A, B;
  // 100要素の配列で初期化
  vector<int> vec(N);
 
  // 100個の入力を受け取る
  for (int i = 0; i < N; i++) {
    cin >> vec.at(i);
    
    if i / 2 == 0{
A += vec.at(i);
    }
    else{
B += vec.at(i)
    }
    
  }
 
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: 'N' was not declared in this scope
    7 |   vector<int> vec(N);
      |                   ^
a.cc:13:8: error: expected '(' before 'i'
   13 |     if i / 2 == 0{
      |        ^
      |        (
a.cc:16:5: error: 'else' without a previous 'if'
   16 |     else{
      |     ^~~~
a.cc:17:15: error: expected ';' before '}' token
   17 | B += vec.at(i)
      |               ^
      |               ;
   18 |     }
      |     ~
Language: C++

#include <iostream>
using namespace std;

int main(){
  int N;
  int a[101];
  cin >> N;
  for(int i=0;i<N;++i) cin >> a[i];
  
  sort(a, a+N, greater<int>());
  int Alice = 0;
  int Bob = 0;
  
  for(int i=0;i<N;++i){
    if(i%2 ==0) Alice += a[i];
    else Bob += a[i];
  }
  cout << Alice - Bob << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   10 |   sort(a, a+N, greater<int>());
      |   ^~~~
      |   short
Language: C++

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

int main()
{
  int N;
  cin >> N;
  vector<int> ai(N);
  for(int i = 0; i < N; i++)
    cin >> ai.at(i);
  vector<int> sorted(N);
  sorted = sort(ai.begin(), ai.end(), greater<int>());
  int Alice = 0, Bob = 0;
  for(int i = 0; i < N; i++)
  {
    if(i%2 == 0)
      Alice += sorted.at(i);
    else
      Bob += sorted.at(i);
  }
  cout << Alice - Bob << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:53: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'void')
   12 |   sorted = sort(ai.begin(), ai.end(), greater<int>());
      |                                                     ^
In file included from /usr/include/c++/14/vector:72,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/vector.tcc:210:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]'
  210 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/vector.tcc:211:42: note:   no known conversion for argument 1 from 'void' to 'const std::vector<int>&'
  211 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/14/vector:66:
/usr/include/c++/14/bits/stl_vector.h:766:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]'
  766 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:766:26: note:   no known conversion for argument 1 from 'void' to 'std::vector<int>&&'
  766 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_vector.h:788:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]'
  788 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:788:46: note:   no known conversion for argument 1 from 'void' to 'std::initializer_list<int>'
  788 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
Language: C++

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

int main()
{
  int N;
  cin >> N;
  vector<int> ai(N);
  for(int i = 0; i < N; i++)
    cin >> ai.at(i);
  vector<int> sorted(N) = sort(ai.begin(), ai.end(), greater<int>());
  int Alice = 0, Bob = 0;
  for(int i = 0; i < N; i++)
  {
    if(i%2 == 0)
      Alice += sorted.at(i);
    else
      Bob += sorted.at(i);
  }
  cout << Alice - Bob << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:25: error: expected ',' or ';' before '=' token
   11 |   vector<int> sorted(N) = sort(ai.begin(), ai.end(), greater<int>());
      |                         ^
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);
  
  soat(A.begin(),A.end());
  reverse(A.begin(),A.end());//大きい順に変換
  
  int X=0,Y=0;
  for(int i=0;i<N;i++){
    if(i=0)
      X+=A.at(i);
    else
      Y+=A.at(i);
  }
  
  cout<<X-Y<<endl;
}
  
      
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: 'soat' was not declared in this scope
   12 |   soat(A.begin(),A.end());
      |   ^~~~
Language: C++

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

int main() {
  int N;
  int a[110];
  cin >> N;
  for(int i = 0; i < N; ++i) cin >> a[i];

  sort(a, a + N, greater<int>());
  int A = 0;
  int B = 0;
  for(i = 0; i < N; ++i) {
    if (i % 2 == 0) A += a[i];
    else {
      B += a[i];
    }
  }
  int diff = A - B;
  cout << diff << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:7: error: 'i' was not declared in this scope
   14 |   for(i = 0; i < N; ++i) {
      |       ^
Language: C++

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

int main() {
  int N;
  int a[110];
  cin >> N;
  for(int i = 0; i < N; ++i) cin >> a[i];

  sort(a, a + N, greater<int>());
  int A = 0;
  int B = 0;
  for(i = 0; i < N; ++i) {
    if (i % 2 == 0) A += a[i];
    else B += a[i];
  }
  int diff = A - B;
  cout << diff << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:7: error: 'i' was not declared in this scope
   14 |   for(i = 0; i < N; ++i) {
      |       ^
Language: C++

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

int main() {
  int N;
  int a[110];
  cin >> N;
  for(int i = 0; i < N; ++i) cin >> a[i]

  sort(a, a + N, greater<int>());
  int A = 0;
  int B = 0;
  for(i = 0; i < N; ++i) {
    if (i % 2 == 0) A += a[i];
    else B += a[i];
  }
  int diff = A - B;
  cout << diff << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:41: error: expected ';' before 'sort'
    9 |   for(int i = 0; i < N; ++i) cin >> a[i]
      |                                         ^
      |                                         ;
   10 | 
   11 |   sort(a, a + N, greater<int>());
      |   ~~~~                                   
a.cc:14:7: error: 'i' was not declared in this scope
   14 |   for(i = 0; i < N; ++i) {
      |       ^
Language: C++

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

int main(){
  int N; 
  cin >> N;
  vector<int> vec(N);
  int Alice, Bob;
  
  for (int i = 0; i < vec.size();i++) cin >> vec.at(i);
  
  sort(vec.begin(),vec.end()),greater<int>());
  
  for (int i = 0; i < vec.size(); i++){
    if(i % 2 == 1) Bob += vec.at(i);
    if(i % 2 == 0) Alice += vec.at(i);
  }
  
  cout << Alice - Bob << endl;
  
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:12:45: error: expected ';' before ')' token
   12 |   sort(vec.begin(),vec.end()),greater<int>());
      |                                             ^
      |                                             ;
Language: C++

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

int main() {
	int N;
    int Alice=0;
    int Bob=0;
	cin >> N;
    vector<int> a(N);
    for(int i=0;i<N;i++){
      cin >> a(i);
      if(i%2 == 0){
        Alice += a(i);
      }
      else{
        Bob += a(i);
      }
    }
  cout << max(Alice,Bob)-min(Alice,Bob) << endl;        
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:15: error: no match for call to '(std::vector<int>) (int&)'
   11 |       cin >> a(i);
      |              ~^~~
a.cc:13:19: error: no match for call to '(std::vector<int>) (int&)'
   13 |         Alice += a(i);
      |                  ~^~~
a.cc:16:17: error: no match for call to '(std::vector<int>) (int&)'
   16 |         Bob += a(i);
      |                ~^~~
Language: C++

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

int main() {
  int N;
  cin >> N;
  
  vector<int> score(N);
  
  for (int i = 0; i < N; i + 2) {
    cin >> score.at(i);
  }
  
  for (int j = 1; j < N; j + 2) {
    cin >> score.at(j);
  }
  
  for(int i = 0; int j = 1; i < N; j < N; i + 2; j + 2)
  cout << score.at(j) - score.at(i) << endl;
}
  
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:18:34: error: expected ')' before ';' token
   18 |   for(int i = 0; int j = 1; i < N; j < N; i + 2; j + 2)
      |      ~                           ^
      |                                  )
a.cc:18:36: error: 'j' was not declared in this scope
   18 |   for(int i = 0; int j = 1; i < N; j < N; i + 2; j + 2)
      |                                    ^
a.cc:18:43: error: 'i' was not declared in this scope
   18 |   for(int i = 0; int j = 1; i < N; j < N; i + 2; j + 2)
      |                                           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
  
  int n;
  int i,j;
  int alice,bob;
  int temp;
  
  cin>>n;
  vector<int> a(n,0);
  for(i=0;i<n;i++)cin>>a.at(i);
  
  for(i=0;i<n;i++){
    for(j=0;j<n-i-1;j++){
      if(a.at(j)<a.at(j+1)){
      	temp = a.at(j);
        a.at(j) = a.at(j+1);  
        a.at(j+1) = temp;}
    }
  }
  
  alice+=a.at(0);
  for(i=1;i<n;i++){
    if(i%2==0)alice+=a.at(i);
    else bob+=a.at(i);
  }
  cout<<(alice-bob);

Compiler output:
a.cc: In function 'int main()':
a.cc:28:21: error: expected '}' at end of input
   28 |   cout<<(alice-bob);
      |                     ^
a.cc:3:15: note: to match this '{'
    3 | int main(void){
      |               ^
Language: C++

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

int main() {
  int N,a,b,asum,bsum,ans=asum-bsum;
  cin>>N;
  
  for(i=0;i<N;i+=2){
    cin>>a;
    asum+=a;
  }
  
  for(i=1;i<N;i+=2){
    cin>>b;
    bsum+=b;
  }
  
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: 'i' was not declared in this scope
    8 |   for(i=0;i<N;i+=2){
      |       ^
a.cc:13:7: error: 'i' was not declared in this scope
   13 |   for(i=1;i<N;i+=2){
      |       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int a[1000];

int main() {
  int N;
  cin >> N;
  
  for (int i = 0; i < N; i++) {
    cin >> a[i];
  }
  
  sort(a, a + N);
  reverse(a, a + N);
  
  int A = 0, B = 0;
  
  for (int i = 0; i < N; i++) {
    if (i % 2 == 0) {
      A += a[i];
    }
    else {
      B += a[i];
    }
    cout << A - B << endl;
    return 0;
  }


Compiler output:
a.cc: In function 'int main()':
a.cc:27:4: error: expected '}' at end of input
   27 |   }
      |    ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int a[1000];

int main() {
  int N;
  cin >> N;
  
  for (int i = 0; i < N; i++) {
    cin >> a[i];
  }
  
  sort(a, a + N);
  reverse(a, a + N);
  
  int A = 0, B = 0;
  
  for (int i = 0; i < N; i++) {
    if (i % 2 == 0) {
      A += a[i]
    }
    else {
      B += a[i]
    }
    cout << A - B << endl;
    return 0;
  }


Compiler output:
a.cc: In function 'int main()':
a.cc:20:16: error: expected ';' before '}' token
   20 |       A += a[i]
      |                ^
      |                ;
   21 |     }
      |     ~           
a.cc:23:16: error: expected ';' before '}' token
   23 |       B += a[i]
      |                ^
      |                ;
   24 |     }
      |     ~           
a.cc:27:4: error: expected '}' at end of input
   27 |   }
      |    ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

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

int main() {
  int N,A;
  cin >> N ;
  vector<int> A(N);
  for (int i = 0; i < N; i++) {
    cin >> A.at(i);
    sort(A.begin(), A.end());
    reverse(vec.begin(), vec.end());
    
  }
  for (int i = 0; i < N; i++) {
  if (i%2=0){
    sum += A.at(i);
  }
  else {
    sum2 += A.at(i);
  }
  }
  cout << sum-sum2 << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: conflicting declaration 'std::vector<int> A'
    7 |   vector<int> A(N);
      |               ^
a.cc:5:9: note: previous declaration as 'int A'
    5 |   int N,A;
      |         ^
a.cc:9:14: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     cin >> A.at(i);
      |              ^~
a.cc:10:12: error: request for member 'begin' in 'A', which is of non-class type 'int'
   10 |     sort(A.begin(), A.end());
      |            ^~~~~
a.cc:10:23: error: request for member 'end' in 'A', which is of non-class type 'int'
   10 |     sort(A.begin(), A.end());
      |                       ^~~
a.cc:11:13: error: 'vec' was not declared in this scope
   11 |     reverse(vec.begin(), vec.end());
      |             ^~~
a.cc:15:8: error: lvalue required as left operand of assignment
   15 |   if (i%2=0){
      |       ~^~
a.cc:16:5: error: 'sum' was not declared in this scope
   16 |     sum += A.at(i);
      |     ^~~
a.cc:16:14: error: request for member 'at' in 'A', which is of non-class type 'int'
   16 |     sum += A.at(i);
      |              ^~
a.cc:19:5: error: 'sum2' was not declared in this scope
   19 |     sum2 += A.at(i);
      |     ^~~~
a.cc:19:15: error: request for member 'at' in 'A', which is of non-class type 'int'
   19 |     sum2 += A.at(i);
      |               ^~
a.cc:22:11: error: 'sum' was not declared in this scope
   22 |   cout << sum-sum2 << endl;
      |           ^~~
a.cc:22:15: error: 'sum2' was not declared in this scope
   22 |   cout << sum-sum2 << endl;
      |               ^~~~
a.cc: At global scope:
a.cc:24:1: error: expected declaration before '}' token
   24 | }
      | ^
Language: C++

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

int main()
{
    int N;
    int a[110];
    cin >> N;
    for(int i = 0; i < N; i++) cin >> a[i];

    sort(a,a+N,greater<int>());
    int Alice = 0;
    int Bob = 0;
    for (int i = 0; i < N; i++)
    {
        if(i % 2 == 0){
            Alice += a[i];
        }
        else{
            Bob += a[i];
        }
    }

    cout << Alice - Bob << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:24:33: error: expected '}' at end of input
   24 |     cout << Alice - Bob << endl;
      |                                 ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include <bits/stdc++.h>
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());
reverse(vec.begin(), vec.end());
int Alice, Bob;
Alice = 0;
Bob = 0
for(int i = 0; i < N; i++){
if(i %2 == 0){
Alice += vec.at(i)
}
else{
Bob += vec.at(i)
}
}
cout << Alice - Bob << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:8: error: expected ';' before 'for'
   15 | Bob = 0
      |        ^
      |        ;
   16 | for(int i = 0; i < N; i++){
      | ~~~     
a.cc:16:16: error: 'i' was not declared in this scope
   16 | for(int i = 0; i < N; i++){
      |                ^
Language: Java

import java.util.Scanner;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int number = sc.nextInt();
    int[] cardList = new int[number];
    int scoreA = 0;
    int scoreB = 0;
    for(int i =0; i < number; i++){
     	cardList[i] = sc.nextInt(); //カード情報の格納
    }
    for(int i = 0; i < number; i++){ //お互いに最大値のカードを取る
      int maxCard = card[0];
      int position = 0; //最大値の位置
      for(int j = 1; j < number; j++){
          if(cardList[j] > maxCard){
            maxCard = cardList[j];
            position = j;
          }
      }
      cardList[position] = 0; //最大値の消去
      if( i % 2 == 0) scoreA += maxCard;
      else scoreB += maxCard;
    }
    System.out.println(scoreA - scoreB);
    
  }
}

Compiler output:
Main.java:14: error: cannot find symbol
      int maxCard = card[0];
                    ^
  symbol:   variable card
  location: class Main
1 error
Language: Java

import java.util.Scanner;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int number = sc.nextInt();
    int[] cardList = new int[number];
    int scoreA = 0;
    int scoreB = 0;
    for(int i =0; i < number; i++){
     	cardList[i] = sc.nextInt(); //カード情報の格納
    }
    for(int i = 0; i < number; i++){ //お互いに最大値のカードを取る
      int maxCard = card[0];
      int position = 0; //最大値の位置
      for(int j = 1; j < number; j){
          if(cardList[j] > maxCard){
            maxCard = cardList[j];
            position = j;
          }
      }
      cardList[position] = 0; //最大値の消去
      if( i % 2 == 0) scoreA += maxCard;
      else scoreB += maxCard;
    }
    System.out.println(scoreA - scoreB);
    
  }
}

Compiler output:
Main.java:16: error: not a statement
      for(int j = 1; j < number; j){
                                 ^
1 error
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:10:6: error: expected ';' before 'for'
   10 |   S=0
      |      ^
      |      ;
   11 |   for(int i=0;i<N;i++){
      |   ~~~ 
a.cc:11:15: error: 'i' was not declared in this scope
   11 |   for(int i=0;i<N;i++){
      |               ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int a;
  cin >> a;
  vector<int> s(110);
  for(int i = 0;i<a;i++)
    cin >> s.at(i);
  sort(s.begin().s.end());
  for(int i = 0;i<a;i++){
    int odd = 0,even = 0;
    for(a%2 == 0)
      even += s.at(i);
    else
      odd += s.at(i);
  }
  if(even > odd)
    cout << even - odd << endl;
  else
    cout << odd - even << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: 'std::vector<int>::iterator' has no member named 's'
    9 |   sort(s.begin().s.end());
      |                  ^
a.cc:12:17: error: expected ';' before ')' token
   12 |     for(a%2 == 0)
      |                 ^
      |                 ;
a.cc:14:5: error: expected primary-expression before 'else'
   14 |     else
      |     ^~~~
a.cc:13:23: error: expected ';' before 'else'
   13 |       even += s.at(i);
      |                       ^
      |                       ;
   14 |     else
      |     ~~~~               
a.cc:14:5: error: expected primary-expression before 'else'
   14 |     else
      |     ^~~~
a.cc:13:23: error: expected ')' before 'else'
   13 |       even += s.at(i);
      |                       ^
      |                       )
   14 |     else
      |     ~~~~               
a.cc:12:8: note: to match this '('
   12 |     for(a%2 == 0)
      |        ^
a.cc:14:5: error: expected primary-expression before 'else'
   14 |     else
      |     ^~~~
a.cc:17:6: error: 'even' was not declared in this scope
   17 |   if(even > odd)
      |      ^~~~
a.cc:17:13: error: 'odd' was not declared in this scope
   17 |   if(even > odd)
      |             ^~~
Language: C++

#include<iostream>
#include<algolithm>
using namespace std;
int main(){
  int n,i,a[100];
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  

Compiler output:
a.cc:2:9: fatal error: algolithm: No such file or directory
    2 | #include<algolithm>
      |         ^~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;
import java.util.Arrays;
import java.util.Comparator;
 
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int[] a = new int[N];
    for(int i=0;i<N;i++){
      a[i] = sc.nextInt();
    }
    Arrays.sort(a,Comparator.reverseOrder());
    
    int Alice = 0;
    int Bob = 0;
    for(int i=0;i<N;i+=2){
      Alice += a[i];
    }
    for(int i=1;i<N;i+=2){
      Bob += a[i];
    }
    
    System.out.println(Alice-Bob);
  }
}

Compiler output:
Main.java:13: error: no suitable method found for sort(int[],Comparator<T#1>)
    Arrays.sort(a,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.Scanner;
import java.util.Arrays;
 
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int[] a = new int[N];
    for(int i=0;i<N;i++){
      a[i] = sc.nextInt();
    }
    Array.sort(a,Comparator.reverseOrder());
    
    int Alice = 0;
    int Bob = 0;
    for(int i=0;i<N;i+=2){
      Alice += a[i];
    }
    for(int i=1;i<N;i+=2){
      Bob += a[i];
    }
    
    System.out.println(Alice-Bob);
  }
}

Compiler output:
Main.java:12: error: cannot find symbol
    Array.sort(a,Comparator.reverseOrder());
    ^
  symbol:   variable Array
  location: class Main
Main.java:12: error: cannot find symbol
    Array.sort(a,Comparator.reverseOrder());
                 ^
  symbol:   variable Comparator
  location: class Main
2 errors
Language: Java

import java.util.Scanner;
import java.util.Array;

class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int[] a = new int[N];
    for(int i=0;i<N;i++){
      a[i] = sc.nextInt();
    }
    Array.sort(a,Comparator.reverseOrder());
    
    int Alice = 0;
    int Bob = 0;
    for(int i=0;i<N;i+=2){
      Alice += a[i];
    }
    for(int i=1;i<N;i+=2){
      Bob += a[i];
    }
    
    System.out.println(Alice-Bob);
  }
}

Compiler output:
Main.java:2: error: cannot find symbol
import java.util.Array;
                ^
  symbol:   class Array
  location: package java.util
Main.java:12: error: cannot find symbol
    Array.sort(a,Comparator.reverseOrder());
    ^
  symbol:   variable Array
  location: class Main
Main.java:12: error: cannot find symbol
    Array.sort(a,Comparator.reverseOrder());
                 ^
  symbol:   variable Comparator
  location: class Main
3 errors
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){;
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>());
  if(i%2==1){
    A+a;
  }
  if(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: no matching function for call to 'sort(int&, std::greater<int>)'
   10 |   sort(a[105],greater<int>());
      |   ~~~~^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:4762:5: note: candidate: 'template<class _RAIter> void std::sort(_RAIter, _RAIter)'
 4762 |     sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~
/usr/include/c++/14/bits/stl_algo.h:4762:5: note:   template argument deduction/substitution failed:
a.cc:10:7: note:   deduced conflicting types for parameter '_RAIter' ('int' and 'std::greater<int>')
   10 |   sort(a[105],greater<int>());
      |   ~~~~^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:4793:5: note: candidate: 'template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)'
 4793 |     sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
      |     ^~~~
/usr/include/c++/14/bits/stl_algo.h:4793:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:292:1: note: candidate: 'template<class _ExecutionPolicy, class _RandomAccessIterator, class _Compare> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::sort(_ExecutionPolicy&&, _RandomAccessIterator, _RandomAccessIterator, _Compare)'
  292 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp);
      | ^~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:292:1: note:   candidate expects 4 arguments, 2 provided
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note: candidate: 'template<class _ExecutionPolicy, class _RandomAccessIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::sort(_ExecutionPolicy&&, _RandomAccessIterator, _RandomAccessIterator)'
  296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last);
      | ^~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){;
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>);
  if(i%2==1){
    A+a;
  }
  if(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:27: error: expected primary-expression before ')' token
   10 |   sort(a[105],greater<int>);
      |                           ^
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>)
  if(i%2==1){
    A+a;
  }
  if(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:27: error: expected primary-expression before ')' token
   10 |   sort(a[105],greater<int>)
      |                           ^
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>)
  if(i%2==1){
    A+a;
  }
  else(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:27: error: expected primary-expression before ')' token
   10 |   sort(a[105],greater<int>)
      |                           ^
a.cc:14:3: error: 'else' without a previous 'if'
   14 |   else(i%2==0){
      |   ^~~~
a.cc:14:15: error: expected ';' before '{' token
   14 |   else(i%2==0){
      |               ^
      |               ;
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>;
  if(i%2==1){
    A+a;
  }
  else(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:27: error: expected primary-expression before ';' token
   10 |   sort(a[105],greater<int>;
      |                           ^
a.cc:14:15: error: expected ';' before '{' token
   14 |   else(i%2==0){
      |               ^
      |               ;
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>);
  if(i%2==1){
    A+a;
  else(i%2==0)
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:27: error: expected primary-expression before ')' token
   10 |   sort(a[105],greater<int>);
      |                           ^
a.cc:13:3: error: expected '}' before 'else'
   13 |   else(i%2==0)
      |   ^~~~
a.cc:11:13: note: to match this '{'
   11 |   if(i%2==1){
      |             ^
a.cc:13:15: error: expected ';' before 'B'
   13 |   else(i%2==0)
      |               ^
      |               ;
   14 |     B+a;
      |     ~          
a.cc: At global scope:
a.cc:16:3: error: 'cout' does not name a type
   16 |   cout << ans << endl;
      |   ^~~~
a.cc:17:1: error: expected declaration before '}' token
   17 | }
      | ^
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int a[105],n,i,A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>);
  if(i%2==1){
    A+a;
  }
  else(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:27: error: expected primary-expression before ')' token
   10 |   sort(a[105],greater<int>);
      |                           ^
a.cc:14:15: error: expected ';' before '{' token
   14 |   else(i%2==0){
      |               ^
      |               ;
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int a[105],n,i[n],A,B,ans=A-B;
  cin >> n;
  for(i=0;i<n;i++){
    cin >> a[i];
  }
  sort(a[105],greater<int>);
  if(i%2==1){
    A+a;
  }
  else(i%2==0){
    B+a;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: incompatible types in assignment of 'int' to 'int [n]'
    7 |   for(i=0;i<n;i++){
      |       ~^~
a.cc:7:12: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    7 |   for(i=0;i<n;i++){
      |           ~^~
a.cc:7:15: error: lvalue required as increment operand
    7 |   for(i=0;i<n;i++){
      |               ^
a.cc:8:13: error: invalid types 'int [105][int [n]]' for array subscript
    8 |     cin >> a[i];
      |             ^
a.cc:10:27: error: expected primary-expression before ')' token
   10 |   sort(a[105],greater<int>);
      |                           ^
a.cc:11:7: error: invalid operands of types 'int [n]' and 'int' to binary 'operator%'
   11 |   if(i%2==1){
      |      ~^~
      |      | |
      |      | int
      |      int [n]
a.cc:14:9: error: invalid operands of types 'int [n]' and 'int' to binary 'operator%'
   14 |   else(i%2==0){
      |        ~^~
      |        | |
      |        | int
      |        int [n]
Language: C

#include <stdio.h>
int main () 
{
int n,i;
int x = 0,sub = 0,tmp = 0;
int a[110];

scanf("%d",&n);

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

int j = 0;
while(1)
{
    int max = 0;
    for(i=j;i<n;i++)
    {    
        if(max<a[i])
        {
            max = a[i];
            x = i;
        }
    }
    tmp = a[j];
    a[j] = a[x];
    a[x] = tmp;
    j++;
    if(j == n-1)
    break;
}
    int alice = 0,bob = 0;
while(int p<n)
{
    alice += a[p];
    p += 2;
}
while(int q<n)
{
    bob += a[q];
    q += 2;
}
sub = alice - bob;
printf("%d %d\n",alice,bob);
printf("%d\n",sub);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:35:7: error: expected expression before 'int'
   35 | while(int p<n)
      |       ^~~
main.c:37:16: error: 'p' undeclared (first use in this function)
   37 |     alice += a[p];
      |                ^
main.c:37:16: note: each undeclared identifier is reported only once for each function it appears in
main.c:40:7: error: expected expression before 'int'
   40 | while(int q<n)
      |       ^~~
main.c:42:14: error: 'q' undeclared (first use in this function)
   42 |     bob += a[q];
      |              ^
Language: C

#include <stdio.h>

int main () 
{
int n,x,sub,tmp,i;
int a[110];

scanf("%d",&n);

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

int j = n-1;
while(1)
{
    int max = 0;
    for(i=0;i<j;i++)
    {    
        if(max<a[i])
        {
            max = a[i];
            x = i;
        }
    }
    tmp = a[j];
    a[j] = a[x];
    a[x] = tmp;
    j--;
    if(j == 0)
    break;
}
    int alice,bob;
    i = n-1;
for(i>=0)
{
    alice += a[i];
    bob += a[i-1];
    i = i-2;
}
sub = alice - bob;
printf("%d",sub);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:36:9: error: expected ';' before ')' token
   36 | for(i>=0)
      |         ^
      |         ;
main.c:36:9: error: expected expression before ')' token