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

using System;
using System.Collections.Generic;
using System.Linq;

public class Prog
{
    public void run()
    {
        var input = Console.ReadLine().Split();
        int L = int.Parse(input[0]);
        int l = L % 2019;
        int R = int.Parse(input[1]);
        int r = R % 2019;
        int LL = (L - l) / 2019;
        int RR = (R - r) / 2019;
        int ans = 0;
        if (LL == RR)
        {
            for(int i = l; i < r; i++)
            {
                for(int j = i + 1; j <= r; j++)
                {
                    ans = Math.Min(ans,(i * j) % 2019);
                }
            }
        }
        else if (l == 0 || r == 0)
        {
            ans = 0;
        }
        else
        {
            ans = 0;
        }
        Console.WriteLine(ans);
    }
    public static void Main()
    {
        var prog = new Prog();
        prog.run();
    }
    /*
    最小公倍数
    public static long Lcm(long a, long b)
    {
        return a * b / Gcd(a, b);
    }

    // ユークリッドの互除法 
    public static long Gcd(long a, long b)
    {
        if (a < b)
            // 引数を入替えて自分を呼び出す
            return Gcd(b, a);
        while (b != 0)
        {
            var remainder = a % b;
            a = b;
            b = remainder;
        }
        return a;
    }
    */
    //a<=c, b<=d;
}

//Array.ConvertAll(int.Parse)
//str.IndexOf("Stage",System.StringComparison.CurrentCulture)


Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:5:1: error: expected unqualified-id before 'public'
    5 | public class Prog
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(void){
  long l,r;
  long m=2019;
  cin>>l>>r;
  for(int i=l;i<r;i++){
    for(int j=i+1;j<=r;j++){
      if((i*j)%2019<m)m=(i*j)%2019;
    }
  }
  cout<<m;
  return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:13:12: error: expected '}' at end of input
   13 |   return 0;
      |            ^
a.cc:3:15: note: to match this '{'
    3 | int main(void){
      |               ^
Language: C

#include<iostream>
#include<cstdio>
#include<vector>
#include<map>
#include<unordered_map>
#include<set>
#include<string>
#include<algorithm>
#include<math.h>
#include<numeric>
#include<iomanip>
#include<queue>
#include<functional>
#include<iso646.h>
#include<bitset>

using namespace std;

typedef vector<int> vi;
typedef pair<int, int> pii;
typedef long long ll;
typedef vector<long long> vll;
typedef pair<long long, long long> pll;

const double INF = 1e16;
const ll MOD = 1e9 + 7;
//const ll MOD = 998244353;

template<class T> inline bool chmin(T& a, T b) {
	if (a > b) {
		a = b;
		return true;
	}
	return false;
}
template<class T> inline bool chmax(T& a, T b) {
	if (a < b) {
		a = b;
		return true;
	}
	return false;
}


int main() {
	ll i, j;
	ll L, R;
	cin >> L >> R;
	ll mod = 2019;
	if (R - L >= mod) {
		cout << 0 << endl;
		return 0;
	}
	ll ans = mod;
	for (i = L; i <= R; i++) {
		for (j = i + 1; j <= R; j++) {
			chmin(ans, (i * j) % mod);
		}
	}
	cout << ans << endl;

	return 0;
}


Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long int 
#define ld long double
#define mod 1000000007
#define endl "\n"
#define pb push_back
#define mp make_pair
int main()
{
    ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	ll l,r;
	cin>>l>>r;
	if(l%2019==0 || r%2019==0)
	{
		cout<<0;
		return 0;
	}
	if(r-l>=2019)
	{
		cout<<0;
		return 0;
	}
	ll rr=r,ll=l;
	rr/=2019;
	ll/=2019;
	if(rr>ll)
	{
		cout<<0;
		return 0;
	}
	r%=2019;
	l%=2019;
	r=l+1;
	r*=l;
	cout<<r%2019;	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:12: error: expected unqualified-id before 'long'
    3 | #define ll long long int
      |            ^~~~
a.cc:25:17: note: in expansion of macro 'll'
   25 |         ll rr=r,ll=l;
      |                 ^~
a.cc:27:11: error: expected unqualified-id before '/=' token
   27 |         ll/=2019;
      |           ^~
a.cc:3:12: error: expected primary-expression before 'long'
    3 | #define ll long long int
      |            ^~~~
a.cc:28:15: note: in expansion of macro 'll'
   28 |         if(rr>ll)
      |               ^~
a.cc:28:15: error: expected ')' before 'long'
   28 |         if(rr>ll)
      |           ~   ^
      |               )
Language: C++

#include <bits/stdc++.h>

using namespace std;

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

const int N = 2019;

int b[N][N];

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	ll l, r;
	cin >> l >> r;
	l %= 2019;
	r %= 2019;
	while (l >= r)
		r += 2019;
	ll ans = 2019;
	for (int i = l; i <= r; ++i)
		for (int j = l; j < i; ++j)
			ans = min(ans, i * j % 2019);
	cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:34: error: no matching function for call to 'min(ll&, int)'
   27 |                         ans = min(ans, i * j % 2019);
      |                               ~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:27:34: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   27 |                         ans = min(ans, i * j % 2019);
      |                               ~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:27:34: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   27 |                         ans = min(ans, i * j % 2019);
      |                               ~~~^~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int l,r,k,p;
int main(){
	cin>>l>>r;
	k=l%2019;
	p=k;
	k=l+2019-k;
	if(k<=r)puts("0");
	else printf("%d",p*(p+1)%mod);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:34: error: 'mod' was not declared in this scope; did you mean 'modf'?
   10 |         else printf("%d",p*(p+1)%mod);
      |                                  ^~~
      |                                  modf
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<bits/stdc++.h>
#include<cmath>
#include<bitset>
using namespace std;

int main(){
  long long int L,R,ans=10000;
  cin>>L>>R;
  
  if((R/2019)-(L/2019)>=1) ans=0;
  else if(L%2019==0 || R%2019==0) ans=0;
  else if(R-L>=2018) ans=0;
  
  else{
    int l=L%2019,r=R%2019;
    
    for(int i=l; i<=r-1; ++i){
      for(int j=i+1; j<=r; ++j){
        ans=min(ans,i*j%2019);
      }
    }
  }
  
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:16: error: no matching function for call to 'min(long long int&, int)'
   23 |         ans=min(ans,i*j%2019);
      |             ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:23:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   23 |         ans=min(ans,i*j%2019);
      |             ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:4:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:23:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   23 |         ans=min(ans,i*j%2019);
      |             ~~~^~~~~~~~~~~~~~
Language: C++

#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<cmath>
#include<string>
#include<cstring>
#include<algorithm>
#include<sstream>
#include<complex>
#include<functional>
#include<vector>
#include<map>
#include<queue>
#include<deque>
#include<stack>
#include<set>

using namespace std;
#define endl '\n'
#define eb emplace_back
#define fst first
#define scd second
#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))
#define YES(n) cout << ((n) ? "YES" : "NO" ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No" ) << endl

constexpr int MOD = 1000000007;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vector<int>> vii;
typedef vector<ll> vl;

ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }

// value
ll L, R;

void solve() {

	cin >> L >> R;

	if ((R / 2019) - (L / 2019) > 0) {
		cout << 0 << endl;
		return;
	}

	ll ans = INT_MAX;
	for (ll i = L; i <= R; i++) {
		for (ll j = L + 1; j <= R; j++) {
			ans = min(ans, i * j % 2019);
		}
	}

	cout << ans << endl;

	return;

}

int main() {

	cin.tie(0);
	ios::sync_with_stdio(false);

	solve();

	return 0;

}

Compiler output:
a.cc: In function 'void solve()':
a.cc:52:18: error: 'INT_MAX' was not declared in this scope
   52 |         ll ans = INT_MAX;
      |                  ^~~~~~~
a.cc:17:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   16 | #include<set>
  +++ |+#include <climits>
   17 |
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<bits/stdc++.h>
#include<cmath>
#include<bitset>
using namespace std;

int main(){
  long long int L,R,ans=10000;
  cin>>L>>R;
  
  if((R/2019)-(L/2019)>=1) ans=0;
  else if(L%2019==0 || R%2019==0) ans=0;
  else if(R-L>=2018) ans=0;
  
  else{
    for(int i=L; i<=R-1; ++i){
      for(int j=i+1; j<=R; ++j){
        ans=min(ans,i*j%2019);
      }
    }
  }
  
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:16: error: no matching function for call to 'min(long long int&, int)'
   21 |         ans=min(ans,i*j%2019);
      |             ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   21 |         ans=min(ans,i*j%2019);
      |             ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:4:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   21 |         ans=min(ans,i*j%2019);
      |             ~~~^~~~~~~~~~~~~~
Language: C++

{
    // 整数の入力
    int a;
    cin >> a;
    // スペース区切りの整数の入力
    int b,kari;
  	int co = a*b;
    cin >> b ;
    // 文字列の入力
   	for (int i = a; i <= (b - 1); i++) {
			for (int j = a+1; j <= b; j++) {
		 kari = i*j % 2019;
             if(co>kari){
              co = kari;
            }
	}
	}
    // 出力
    cout << co;
    return 0;
}

Compiler output:
a.cc:1:1: error: expected unqualified-id before '{' token
    1 | {
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define REP(i, a, n) for (int i = a, _n = n; i <= _n; ++i)
#define DREP(i, a, n) for (int i = a, _n = n; i >= _n; --i)
#define FOR(i, a, n) for (int i = a, _n = n; i < _n; ++i)
#define EREP(i, a) for (int i = first[a]; i; i = edge[i].nxt)
#define debug(x) cout << #x << " = " << x << endl

const int Mod = 2019;

int L, R, l, r;

int main () {
	scanf ("%d%d", &l, &r);
	L = l, R = r;
	L %= Mod;
	if (r - l >= Mod) R = L + Mod;
	else R = r % Mod;
	if (L >= R) R += Mod

	int ans = 2e9;
	REP (i, L, R) REP (j, i + 1, R)
		ans = min(ans, i * j % Mod);
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:29: error: expected ';' before 'int'
   21 |         if (L >= R) R += Mod
      |                             ^
      |                             ;
   22 | 
   23 |         int ans = 2e9;
      |         ~~~                  
a.cc:25:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   25 |                 ans = min(ans, i * j % Mod);
      |                 ^~~
      |                 abs
a.cc:26:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   26 |         cout << ans << endl;
      |                 ^~~
      |                 abs
Language: C

include <stdio.h>

int main(void){
    // Your code here!
    int l,r;
    scanf("%d %d", &l, &r);
    l %= 2019;
    r %= 2019;
    
    if (l > r){
       int swap = r;
       r = l;
       l = swap;
    }
    
    int min = 2019;
    for(int i = l; i < r; i ++){
        for(int j = i+1; j <= r; j ++){
            if ( (i*j) % 2019 < min) min = (i*j) % 2019;
        }
    }
    printf("%d", min);
    return 0;
}

Compiler output:
main.c:1:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include <stdio.h>
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using Edge = pair<int, int>;
using Graph = vector<vector<Edge>>;
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define SORT(v) sort((v).begin(), (v).end())
#define RSORT(v) sort((v).rbegin(), (v).rend())
const ll nmax = 8;
const ll INF = 1e9;
bool graph[nmax][nmax];
vector<vector<ll>> dist = vector<vector<ll>>(nmax, vector<ll>(nmax, INF));
void warshall_floyd(ll n)
{
    for (size_t i = 0; i < n; i++)
    {
        for (size_t j = 0; j < n; j++)
        {
            for (size_t k = 0; k < n; k++)
            {
                dist[j][k] = min(dist[j][k], dist[j][i] + dist[i][k]);
            }
        }
    }
}

class UnionFind
{
public:
    vector<ll> Parent;

    UnionFind(ll N)
    {
        Parent = vector<ll>(N, -1);
    }
    ll find(ll A)
    {
        if (Parent[A] < 0)
            return A;
        return Parent[A] = find(Parent[A]);
    }

    ll size(ll A)
    {
        return -Parent[find(A)];
    }

    bool Union(ll A, ll B)
    {
        A = find(A);
        B = find(B);
        if (A == B)
        {
            return false;
        }
        if (size(A) < size(B))
            swap(A, B);

        Parent[A] += Parent[B];
        Parent[B] = A;

        return true;
    }
};

ll gcd(ll a, ll b)
{
    if (b == 0)
        return a;
    return gcd(b, a % b);
}

ll lcm(ll a, ll b)
{
    ll g = gcd(a, b);
    return a / g * b;
}

ll mulMod(ll a, ll b)
{
    return (((a % MOD) * (b % MOD)) % MOD);
}

ll powMod(ll a, ll p)
{
    if (p == 0)
    {
        return 1;
    }
    else if (p % 2 == 0)
    {
        ll half = powMod(a, p / 2);
        return mulMod(half, half);
    }
    else
    {
        return mulMod(powMod(a, p - 1), a);
    }
}

ll ceil(ll a, ll b)
{
    return (a + b - 1) / b;
}

const long long MOD = 2019;

void solve(long long L, long long R)
{

    ll ans = INT16_MAX;
    for (int i = L; i < R; i++)
    {
        ans = min(i % MOD * i + 1 % MOD, ans);
    }
    cout << ans << endl;
}

int main()
{
    long long L;
    scanf("%lld", &L);
    long long R;
    scanf("%lld", &R);
    solve(L, R);
    return 0;
}


Compiler output:
a.cc: In function 'll mulMod(ll, ll)':
a.cc:81:19: error: 'MOD' was not declared in this scope
   81 |     return (((a % MOD) * (b % MOD)) % MOD);
      |                   ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using Edge = pair<int, int>;
using Graph = vector<vector<Edge>>;
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define SORT(v) sort((v).begin(), (v).end())
#define RSORT(v) sort((v).rbegin(), (v).rend())
const ll MOD = 1000000007;
const ll nmax = 8;
const ll INF = 1e9;
bool graph[nmax][nmax];
vector<vector<ll>> dist = vector<vector<ll>>(nmax, vector<ll>(nmax, INF));
void warshall_floyd(ll n)
{
    for (size_t i = 0; i < n; i++)
    {
        for (size_t j = 0; j < n; j++)
        {
            for (size_t k = 0; k < n; k++)
            {
                dist[j][k] = min(dist[j][k], dist[j][i] + dist[i][k]);
            }
        }
    }
}

class UnionFind
{
public:
    vector<ll> Parent;

    UnionFind(ll N)
    {
        Parent = vector<ll>(N, -1);
    }
    ll find(ll A)
    {
        if (Parent[A] < 0)
            return A;
        return Parent[A] = find(Parent[A]);
    }

    ll size(ll A)
    {
        return -Parent[find(A)];
    }

    bool Union(ll A, ll B)
    {
        A = find(A);
        B = find(B);
        if (A == B)
        {
            return false;
        }
        if (size(A) < size(B))
            swap(A, B);

        Parent[A] += Parent[B];
        Parent[B] = A;

        return true;
    }
};

ll gcd(ll a, ll b)
{
    if (b == 0)
        return a;
    return gcd(b, a % b);
}

ll lcm(ll a, ll b)
{
    ll g = gcd(a, b);
    return a / g * b;
}

ll mulMod(ll a, ll b)
{
    return (((a % MOD) * (b % MOD)) % MOD);
}

ll powMod(ll a, ll p)
{
    if (p == 0)
    {
        return 1;
    }
    else if (p % 2 == 0)
    {
        ll half = powMod(a, p / 2);
        return mulMod(half, half);
    }
    else
    {
        return mulMod(powMod(a, p - 1), a);
    }
}

ll ceil(ll a, ll b)
{
    return (a + b - 1) / b;
}

const long long MOD = 2019;

void solve(long long L, long long R)
{

    ll ans = INT16_MAX;
    for (int i = L; i < R; i++)
    {
        ans = min(i % MOD * i + 1 % MOD, ans);
    }
    cout << ans << endl;
}

int main()
{
    long long L;
    scanf("%lld", &L);
    long long R;
    scanf("%lld", &R);
    solve(L, R);
    return 0;
}


Compiler output:
a.cc:107:17: error: redefinition of 'const long long int MOD'
  107 | const long long MOD = 2019;
      |                 ^~~
a.cc:9:10: note: 'const ll MOD' previously defined here
    9 | const ll MOD = 1000000007;
      |          ^~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
    // 整数の入力
    int a;
    cin >> a;
    // スペース区切りの整数の入力
    int b,kari;
  	int co = a*b;
    cin >> b ;
    // 文字列の入力
   	for (int i = a; i <= (b - 1); i++) {
			for (int j = a+1; j <= b; j++) {
		 kari = i*j % 2019;
             if(co>kari){
              co = kari;
            }
	}
	}
    // 出力
    cout << (a+b+c) << " " << s << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:18: error: 'c' was not declared in this scope; did you mean 'co'?
   22 |     cout << (a+b+c) << " " << s << endl;
      |                  ^
      |                  co
a.cc:22:31: error: 's' was not declared in this scope
   22 |     cout << (a+b+c) << " " << s << endl;
      |                               ^
Language: C++

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <ctime>
#include <cassert>
#include <complex>
#include <string>
#include <cstring>
#include <chrono>
#include <random>
#include <queue>
#include <bitset>
#include <iomanip>
using namespace std;
#define all(x) x.begin(), x.end()
typedef vector <int> vi;
typedef pair<int,int> ii;
typedef long long ll;
typedef long double ld;
const int mod = 1e9 + 7;
const ll inf = 3e18 + 5;
int add(int a, int b) { return (a += b) < mod ? a : a - mod; }
int mul(int a, int b) { return 1LL * a * b % mod; }

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	#ifndef ONLINE_JUDGE

	int l, r;
	cin >> l >> r;
	int a = mod, b = mod;
	for(int i = l; i <= min(l + 2018, r); i++){
		if((i % 2019) < a){
			a = i % 2019;
		}
		else if((i % 2019) < b){
			b = i % 2019;
		}
	}
	cout << a * b;
}

Compiler output:
a.cc:35: error: unterminated #ifndef
   35 |         #ifndef ONLINE_JUDGE
Language: C++

#include <iostream>
using namespace std;
int main(void){
    long long l, r, ans;
    cin >> l >> r;
    if(r - l >= 2018){
        ans = 0;
    }else{
        ans = 2019;
        for(int i = l; i < r; i++){
            for(int j = i+1; j <= r; j++){
                ans = min(ans, (i*j) % 2019);
            }
        }
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:26: error: no matching function for call to 'min(long long int&, int)'
   12 |                 ans = min(ans, (i*j) % 2019);
      |                       ~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:12:26: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   12 |                 ans = min(ans, (i*j) % 2019);
      |                       ~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
Language: C++

#include <bits/stdc++.h>
#define err(args...) {}
#ifdef DEBUG
#include "_debug.cpp"
#endif
using namespace std;
using ll = long long;
using ld = long double;
template <typename T> using lim = numeric_limits<T>;
template <typename T> istream& operator>>(istream& is, vector<T>& a) { for(T& x : a) { is >> x; } return is; }
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ll L, R;
    cin >> L >> R;
    if(R - L >= 2018) {
        cout << 0 << endl;
    } else {
        int ans = 2018;
        for(ll i = L; i <= R; i++) {
            for(ll j = i + 1; j <= R; j++) {
                ans = min(ans, i * j % 2019);
            }
        }
        cout << ans << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:26: error: no matching function for call to 'min(int&, ll)'
   22 |                 ans = min(ans, i * j % 2019);
      |                       ~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:22:26: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   22 |                 ans = min(ans, i * j % 2019);
      |                       ~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:22:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |                 ans = min(ans, i * j % 2019);
      |                       ~~~^~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
#define For(a,b,c) for(int a=b;a<=c;++a)
#define Dor(a,b,c) for(int a=b;a>=c;--a)
using namespace std;
int l,r;
int main() {
	scanf("%d%d",&l,&r);
	if(r-l<=2019) {
		int ans=2019;
		For(i,l,r)
			For(j,i+1,r)
			ans=min(ans,1LL*i*j%2019);
		printf("%d\n",ans);
		return 0;
	}
	puts("0");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:32: error: no matching function for call to 'min(int&, long long int)'
   12 |                         ans=min(ans,1LL*i*j%2019);
      |                             ~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:12:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   12 |                         ans=min(ans,1LL*i*j%2019);
      |                             ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:12:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   12 |                         ans=min(ans,1LL*i*j%2019);
      |                             ~~~^~~~~~~~~~~~~~~~~~
Language: C++

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

int main(){
	int L,R;cin>>L>>R;
	if(L%2019==0 or R%2019==0 or L/2019!=R/2019){puts("0");return 0;}
	int ans=2019;
	for(int i=L;i<=R;i++)
		for(int j=i+1;j<=R;j++)
			ans=min(ans,1ll*i*j%2019);
	printf("%d\n",ans);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:32: error: no matching function for call to 'min(int&, long long int)'
   10 |                         ans=min(ans,1ll*i*j%2019);
      |                             ~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:10:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   10 |                         ans=min(ans,1ll*i*j%2019);
      |                             ~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:10:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   10 |                         ans=min(ans,1ll*i*j%2019);
      |                             ~~~^~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (n); i++)
#define repr(i, n) for (int i = (n) - 1; i >= 0; i--)

using namespace std;
using ll = long long;

int main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  ll ans = 1e9;
  ll L, R;
  cin >> L >> R;
  if (L / 2019 != R / 2019) {
    cout << 0 << endl;
    return 0;
  }
  for (ll i = L; i <= R; i++) {
    for (ll j = i + 1; j <= R; j++) {
      ans = min(ans, (i * j % 2019);
    }
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:36: error: expected ')' before ';' token
   21 |       ans = min(ans, (i * j % 2019);
      |                ~                   ^
      |                                    )
Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <string>
using namespace std;
int main(void){
    long long l,r,i,m=200000;
    cin>>l>>r;
    for(i=l:i<=r;i++)m=min(m,i%2019);
    cout<<m*(m+1)<<endl;
}
    


Compiler output:
a.cc: In function 'int main()':
a.cc:10:12: error: found ':' in nested-name-specifier, expected '::'
   10 |     for(i=l:i<=r;i++)m=min(m,i%2019);
      |            ^
      |            ::
a.cc:10:11: error: 'l' is not a class, namespace, or enumeration
   10 |     for(i=l:i<=r;i++)m=min(m,i%2019);
      |           ^
a.cc:10:21: error: expected ';' before ')' token
   10 |     for(i=l:i<=r;i++)m=min(m,i%2019);
      |                     ^
      |                     ;
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (n); i++)
#define repr(i, n) for (int i = (n) - 1; i >= 0; i--)

using namespace std;
using ll = long long;

int main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  int ans = 1e9;
  int L, R;
  cin >> L >> R;
  if (L / 2019 != R / 2019) {
    cout << 0 << endl;
    return 0;
  }
  for (int i = L; i <= R; i++) {
    for (int j = i + 1; j <= R; j++) {
      ans = min(ans, (long long)i * j % 2019);
    }
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:16: error: no matching function for call to 'min(int&, long long int)'
   21 |       ans = min(ans, (long long)i * j % 2019);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   21 |       ans = min(ans, (long long)i * j % 2019);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:21:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   21 |       ans = min(ans, (long long)i * j % 2019);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <string>
using namespace std;
int main(void){
    long long l,r,i,m=200000;
    cin>>l>>r;
    for(i=l:i<=r;i++)m=min(m,i%2019);
    cout<<m*(m+1)<<endl;
    


Compiler output:
a.cc: In function 'int main()':
a.cc:10:12: error: found ':' in nested-name-specifier, expected '::'
   10 |     for(i=l:i<=r;i++)m=min(m,i%2019);
      |            ^
      |            ::
a.cc:10:11: error: 'l' is not a class, namespace, or enumeration
   10 |     for(i=l:i<=r;i++)m=min(m,i%2019);
      |           ^
a.cc:10:21: error: expected ';' before ')' token
   10 |     for(i=l:i<=r;i++)m=min(m,i%2019);
      |                     ^
      |                     ;
a.cc:11:25: error: expected '}' at end of input
   11 |     cout<<m*(m+1)<<endl;
      |                         ^
a.cc:7:15: note: to match this '{'
    7 | int main(void){
      |               ^
Language: C++

#include <iostream>
#include <bits/stdc++.h>
#include <vector>
#include <algorithm>

using namespace std;
#define REP(i,n) FOR(i,0,n)
#define FOR(i,a,b) for(long long i=(a),i##Len_=(b);i<i##Len_;i++)
typedef long long ll;
static const ll MOD = 1000000007;
static const ll INF = 1000000000000000000LL;



int main()
{
    ll L,R,res;

    cin >> L >> R;

    ll iMin = 2020;

    for(ll i = L; i <= R-1; ++i)
    {
        for(j = L+1; j <=R; ++j)
        {
            iMin = min(iMin, (i*j) % 2019);
        }
    }
    cout << iMin << endl;
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:25:13: error: 'j' was not declared in this scope
   25 |         for(j = L+1; j <=R; ++j)
      |             ^
Language: C++

#include <iostream>
#include <vector>
#define rep(i, n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
  int n;
  cin >> n;
  vector<ll>a(n); 
  rep(i,n)cin>>a[i];
  ll sum=0;
  rep(i,n)sum+=a[i];
  ll tmp=0;
  <ll>ans(n);
  for(int i=1;i<n;i+=2){
    tmp+=a[i];
  }
  ans[0]=sum-2*tmp;
  for(int i=1;i<n;i++){
    ans[i] = 2*a[i-1]-ans[i-1];
  }
  rep(i,n)cout<<ans[i]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:3: error: expected primary-expression before '<' token
   15 |   <ll>ans(n);
      |   ^
a.cc:15:6: error: expected primary-expression before '>' token
   15 |   <ll>ans(n);
      |      ^
a.cc:15:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |   <ll>ans(n);
      |       ^~~
      |       abs
Language: C++

#include <bits/stdc++.h>
using namespace std ;
typedef long long ll;
 
int main(){
    int N;cin>>N;
    ll a[N],x[N];
    for(int i=0;i<N;i++){
        cin>>a[i];
        x[i]=0;
    }
　　for(int i=1;i<=(N-1)/2;i++) x[0]+=a[2*i]-a[2*i-1];
    x[0]+=a[0];
    cout <<x[0]<<endl;
    for(int i=0;i<N;i++){
        x[i+1]=2*a[i]-x[i];
        cout << x[i+1] << endl;
    }
    
}

Compiler output:
a.cc:12:1: error: extended character 　 is not valid in an identifier
   12 | 　　for(int i=1;i<=(N-1)/2;i++) x[0]+=a[2*i]-a[2*i-1];
      | ^
a.cc:12:1: error: extended character 　 is not valid in an identifier
a.cc: In function 'int main()':
a.cc:12:9: error: expected primary-expression before 'int'
   12 | 　　for(int i=1;i<=(N-1)/2;i++) x[0]+=a[2*i]-a[2*i-1];
      |         ^~~
a.cc:12:17: error: 'i' was not declared in this scope
   12 | 　　for(int i=1;i<=(N-1)/2;i++) x[0]+=a[2*i]-a[2*i-1];
      |                 ^
Language: C++

#include<stdio.h>
#include<iostream>
#include<vector>
#include<math.h>
#include<queue>
#include<map>
#include<algorithm>
#include<string.h>
#include<functional>
#include<limits.h>
#include<stdlib.h>
#include<string>
#include<unordered_map>
using namespace std;
 
#define intmax INT_MAX
#define lmax LONG_MAX
#define uintmax UINT_MAX
#define ulmax ULONG_MAX
#define llmax LLONG_MAX
#define ll long long
#define rep(i,a,N) for((i)=(a);(i)<(N);(i)++)
#define rrp(i,N,a) for((i)=(N)-1;(i)>=(a);(i)--)
#define llfor ll i,j,k
#define sc(a) cin>>a
#define pr(a) cout<<a<<endl
#define pY puts("YES")
#define pN puts("NO")
#define py puts("Yes")
#define pn puts("No")
#define pnn printf("\n")
#define sort(a) sort(a.begin(),a.end())
#define push(a,b) (a).push_back(b)
#define llvec vector<vector<ll>>
#define charvec vector<vector<char>>
#define sizeoof(a,b) (a,vector<ll>(b))
#define llpvec vector<pair<ll,ll>>
/*繰り上げ除算*/ll cei(ll x,ll y){ll ans=x/y;if(x%y!=0)ans++;return ans;}
/*最大公約数*/ll gcd(ll x,ll y){return y?gcd(y,x%y):x;}
/*最小公倍数*/ll lcm(ll x,ll y){return x/gcd(x,y)*y;}
/*n乗*/ll llpow(ll x,ll n){ll i,ans=1;rep(i,0,n)ans*=x;return ans;}
/*階乗*/ll fact(ll x){ll i,ans=1;rep(i,0,x)ans*=(x-i);return ans;}
/*nCr*/ll ncr(ll n,ll r){return fact(n)/fact(r)/fact(n-r);}
/*nPr*/ll npr(ll n,ll r){return fact(n)/fact(n-r);}
/*primejudge*/bool prime(ll a){if(a<=1)return false;ll i;for(i=2;i*i<=a;i++){if(a%i==0)return false;}return true;}
ll ans=0;llfor;///////////////////////////////////////////////////////////
int main(){
  ll N;
  cin>>N;
  vector<ll> X(N);
  vector<ll> A(N);
  for(int i=0,i<N;i++) cin>>A.at(i);
  ll S=A.at(N-1);
  for(int i=0;i<N/2-1;i=i+2) S=S+A.at(i)-A.at(i+1);
  X.at(0)=S;
  for(int i=0;i<N-1;i++) X.at(i+1)=2*A.at(i)-X.at(i);
  for(int i=0;i<N;i++) cout<<X.at(i)<<" ";  
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:52:16: error: expected ';' before '<' token
   52 |   for(int i=0,i<N;i++) cin>>A.at(i);
      |                ^
      |                ;
a.cc:52:16: error: expected primary-expression before '<' token
Language: C++

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

int main() {
  int n;
  cin >> n;
  vector<int> a(n);
  rep(i, n) cin >> a[i];
  ll total;
  ll m1 = 0;
  total = accumulate(a.begin(), a.end(), 0);
  for (int i=0; i<n; i=i+2) {
    m1 += 2 * a[i];
  }
  m1 -= total;
  vector<int> ans(n);
  ans[0] = m1;
  for (int i=1; i<n; i++){
    ans[i] = 2 * (a[i-1] - ans[i-1] / 2);
  }
  rep(i,n) printf("%d%c", ans[i], i==n-1?'\n':' ');
  return 0;
}
2 4 12 2 8
2 4 12 2 8


Compiler output:
a.cc:27:1: error: expected unqualified-id before numeric constant
   27 | 2 4 12 2 8
      | ^
Language: C++

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

int main() {
  int n;
  cin >> n;
  vector<int> a(n);
  rep(i, n) cin >> a[i];
  ll total;
  ll m1;
  total = accumulate(a.begin(), a.end(), 0);
  for (int i=0; i<n; i=i+2) {
    m1 += 2 * a[i];
  }
  m1 -= total;
  vector<int> ans(n);
  ans[0] = m1;
  for (int i=1; i<n; i++){
    ans[i] = 2 * (a[i-1] - ans[i-1] / 2);
  }
  rep(i, n) {
    cout << ans[i];
    if (i != n-1) {
      cout << ' ';
    }
  }
  cout << '\n' <<;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:18: error: expected primary-expression before ';' token
   30 |   cout << '\n' <<;
      |                  ^
Language: C

N = int(input())
A = list(map(int, input().split(' ')))
a = 0
for i in range(N):
  a += (-1) ** i * A[i]
res = [0 for _ in range(N)]
res[0] = a
print('{} '.format(res[0]), end='')
for i in range(1, N - 1):
  res[i] = 2 * A[i-1] - res[i-1]
  print('{} '.format(res[i]), end='')
res[N-1] = 2 * A[N-2] - res[N-2]
print(res[N-1])

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | N = int(input())
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'N' [-Wimplicit-int]
main.c:1:5: error: expected expression before 'int'
    1 | N = int(input())
      |     ^~~
main.c:8:7: warning: multi-character character constant [-Wmultichar]
    8 | print('{} '.format(res[0]), end='')
      |       ^~~~~
main.c:8:33: error: empty character constant
    8 | print('{} '.format(res[0]), end='')
      |                                 ^~
main.c:11:9: warning: multi-character character constant [-Wmultichar]
   11 |   print('{} '.format(res[i]), end='')
      |         ^~~~~
main.c:11:35: error: empty character constant
   11 |   print('{} '.format(res[i]), end='')
      |                                   ^~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long [] in = new long [n];
        long [] ans = new long [n+1];
        for(int i=0;i<n;i++){
                             in[i] = sc.nextLong();
                            }
        ans [0] = 0;
        ans [1] = 2*in[0];
        for(int i=0;i<n-1;i++){ans[i+2] = ans[i]+2*(in[i+1]-in[i]);
                              }
        long a = in[n]/2;
        for(int i=0;i<n;i++){if(i%b==0){System.out.println(ans[i]+a);}
                             else{System.out.println(ans[i]-a);}
                            }		
	}
}


Compiler output:
Main.java:16: error: cannot find symbol
        for(int i=0;i<n;i++){if(i%b==0){System.out.println(ans[i]+a);}
                                  ^
  symbol:   variable b
  location: class Main
1 error
Language: C++

		cin >> a[i];
		sum += a[i];
	}

	vector<long long> x(n + 1, 0);
	
	x[1] += sum;
	for (int i = 1; i <= (n + 1) / 2; i++) {
		x[1] -= 2 * a[2 * i];
	}

	for (int i = n; i >= 2; --i) {

		if (i == n) {
			x[i] = 2 * a[i] - x[1];
		}
		else {
			x[i] = 2 * a[i] - x[i + 1];
		}

	}

	for (int i = 1; i <= n; ++i) {
		cout << x[i] << " ";
	}

	return 0;
}

Compiler output:
a.cc:1:17: error: 'cin' does not name a type
    1 |                 cin >> a[i];
      |                 ^~~
a.cc:2:17: error: 'sum' does not name a type
    2 |                 sum += a[i];
      |                 ^~~
a.cc:3:9: error: expected declaration before '}' token
    3 |         }
      |         ^
a.cc:5:9: error: 'vector' does not name a type
    5 |         vector<long long> x(n + 1, 0);
      |         ^~~~~~
a.cc:7:9: error: 'x' does not name a type
    7 |         x[1] += sum;
      |         ^
a.cc:8:9: error: expected unqualified-id before 'for'
    8 |         for (int i = 1; i <= (n + 1) / 2; i++) {
      |         ^~~
a.cc:8:25: error: 'i' does not name a type
    8 |         for (int i = 1; i <= (n + 1) / 2; i++) {
      |                         ^
a.cc:8:43: error: 'i' does not name a type
    8 |         for (int i = 1; i <= (n + 1) / 2; i++) {
      |                                           ^
a.cc:12:9: error: expected unqualified-id before 'for'
   12 |         for (int i = n; i >= 2; --i) {
      |         ^~~
a.cc:12:25: error: 'i' does not name a type
   12 |         for (int i = n; i >= 2; --i) {
      |                         ^
a.cc:12:33: error: expected unqualified-id before '--' token
   12 |         for (int i = n; i >= 2; --i) {
      |                                 ^~
a.cc:23:9: error: expected unqualified-id before 'for'
   23 |         for (int i = 1; i <= n; ++i) {
      |         ^~~
a.cc:23:25: error: 'i' does not name a type
   23 |         for (int i = 1; i <= n; ++i) {
      |                         ^
a.cc:23:33: error: expected unqualified-id before '++' token
   23 |         for (int i = 1; i <= n; ++i) {
      |                                 ^~
a.cc:27:9: error: expected unqualified-id before 'return'
   27 |         return 0;
      |         ^~~~~~
a.cc:28:1: error: expected declaration before '}' token
   28 | }
      | ^