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

#include <bits/stdc++.h>
using namespace std;
// 287644PV
#define FIXED_FLOAT(x) std::fixed <<std::setprecision(6)<<(x)
const long long mod = 1000000007;

void addSelf(long long&x, long long y)
{
    x+= y;
    if(x >= mod)
        x-=mod;
}
void subSelf(long long&x, long long y)
{
    x -= y;
    if(x < 0)
        x += mod;
}

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

long long64_t power(long long base, long long expo)
{
    long long64_t sol = 1;
    for (long long i = 0; i <expo ; ++i) {
        sol *= base;
    }
    return sol;
}

bool compare1(pair<long long,long long> i,pair<long long,long long> j) // 1 < i < n
{
    return i.second < j.second;
}

bool compare2(pair<long long,long long> i, pair<long long,long long> j) //n > n-i > 1
{
    return i.first > j.first;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    long long a,b;
    cin >> a >> b;
    bool flow = false;
    if(b >= 2019)
        flow = true;
    a = a % 2019;
    b = b % 2019;
    if(a < b)
    {
        long long mini = 2020;
        for (long long i = a; i <= b; ++i) {
            for (long long j = i+1; j <= b; ++j) {
                long long temp = (i*j)%2019;
                if(temp < mini)
                    mini = temp;
            }
        }
        cout << mini;
    } else
        cout << 0;


return 0;
}

Compiler output:
a.cc:28:15: error: expected initializer before 'power'
   28 | long long64_t power(long long base, long long expo)
      |               ^~~~~
Language: C++

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

int main() {
  int64_t L,R;
  cin >> L >> R;
  int min = 1000000000;
  
  for(int64_t i=L; i<R; i++){
    for(int64_t j=i; j<R+1; j++){
      if((i*J)%2019 < min){
        min = (i*j)%2019;
        if(min==0) break;
      }
    }
    if(min==0) break;
  }
  cout << min << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'J' was not declared in this scope
   12 |       if((i*J)%2019 < min){
      |             ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0; i<n; i++)
typedef long long ll;
using namespace std;
int INF = 1001001001;

		

int main(){
	ll l,r;
	cin >> l >> r;
	int ans=2020;
	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%2019)*(j%2019)%2019);
			}
		}
	}
	cout << ans << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:72: error: expected ')' before ';' token
   18 |                                 ans = min(ans, ((i%2019)*(j%2019)%2019);
      |                                          ~                             ^
      |                                                                        )
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0; i<n; i++)
typedef long long ll;
using namespace std;
int INF = 1001001001;

		

int main(){
	ll l,r;
	cin >> l >> r;
	int ans=2020;
	if(r-l >= 2018){
		ans=0; 
	}else{
		for(int i=l; i<=r; i++){
			for(int j=i+1; j<=r; j++){
				int = min(ans, (i*j)%2019);
			}
		}
	}
	cout << ans << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:37: error: expected unqualified-id before '=' token
   18 |                                 int = min(ans, (i*j)%2019);
      |                                     ^
Language: C++

// ~maqsat~
/*    
**	  “Anyone who has never made a mistake has never tried anything new.”
**    © Albert Einstein
*/

// #pragma GCC target ("avx2")
// #pragma GCC optimization ("Ofast")
// #pragma GCC optimization ("unroll-loops")

// #pragma comment(linker, "/stack:200000000")
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define F first
#define S second
#define in insert
#define pb push_back
#define eb emplace_back
#define sz(x) int(x.size())
#define all(x) x.begin(), x.end()
#define count1 __builtin_popcountl
#define debug(x) cerr << (#x) << " = " << (x) << "\n"
#define ACCELERATE ios_base::sync_with_stdio(false),cin.tie(nullptr)
#define fre(f) if(fopen(f".in", "r")) freopen(f".in", "r", stdin),freopen(f".out", "w", stdout)

using namespace std;
using namespace __gnu_pbds;

using ll = long long;
using ull = unsigned long long;
// using big = __int128_t; // -10^38...10^38
using db = double;
using ld = long double;
typedef pair<int,int> ii;
typedef pair<ll,ll> pll;

template <class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <class T> inline void cmin(T &a, T b) { a = min(a, b); }
template <class T> inline void cmax(T &a, T b) { a = max(a, b); }

const int oo = 0x3f3f3f3f;
const ll N = 2e5 + 345;
const ll MOD = 1e9 + 7;
const ll INF = 1e10 + 9;
const db EPS = 1e-9;
const db PI = acos(-1); // 3.14159265358979323846
const int dx[] = {1, -1, 0, 0, 1, 1, -1, -1};
const int dy[] = {0, 0, 1, -1, 1, -1, -1, 1};

int main() {
    fre("");
    ACCELERATE;
	
	ll l, r;
	cin >> l >> r;

	if(r - l + 1 > 2019) return !(cout << 0);

	int ans = oo;
	for(ll i = l; i <= r; i++) {
		for(ll j = i + 1; j <= r; j++) {
			cmin(ans, (i * j % 2019));
			if(!ans) return !(cout << ans);
		}
	}

	cout << ans;
    return 0;
}
/*
 
*/


Compiler output:
a.cc: In function 'int main()':
a.cc:66:29: error: no matching function for call to 'cmin(int&, ll)'
   66 |                         cmin(ans, (i * j % 2019));
      |                         ~~~~^~~~~~~~~~~~~~~~~~~~~
a.cc:42:32: note: candidate: 'template<class T> void cmin(T&, T)'
   42 | template <class T> inline void cmin(T &a, T b) { a = min(a, b); }
      |                                ^~~~
a.cc:42:32: note:   template argument deduction/substitution failed:
a.cc:66:29: note:   deduced conflicting types for parameter 'T' ('int' and 'long long int')
   66 |                         cmin(ans, (i * j % 2019));
      |                         ~~~~^~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
using ll = long long;
int main(){ 
    ll l,r;
    cin>>l>>r;
    if(r-l>=2018){
        cout<<0;
        return 0;
    }
    ll a=0;
    ll b=100000000
while(l>=2019){
    r-=2019;
    l-=2019;
}
if(r>=2019){
    cout<<0;
    return 0;
}
for(int i=r;i<l;i++){
    for(int j=i+1;j<l+1;j++){
        a=i*j;
        a%=2019;
        b=min(a,b);
    }
}           
cout<<b;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:1: error: expected ',' or ';' before 'while'
   18 | while(l>=2019){
      | ^~~~~
Language: C++

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

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

int main() {
	cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
	ll L,R; cin>>L>>R;
	if(R>=2019+L) {
		cout<<0<<"\n";
		return 0;
	}
	int ret=INT_MAX;
	for (ll i=L; i<=R; i++)
		for (ll j=i+1; j<=R; j++)
			ret=min(ret,(i*j)%2019);
	cout<<ret<<"\n";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:32: error: no matching function for call to 'min(int&, ll)'
   17 |                         ret=min(ret,(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:17:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   17 |                         ret=min(ret,(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:17:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   17 |                         ret=min(ret,(i*j)%2019);
      |                             ~~~^~~~~~~~~~~~~~~~
Language: C++

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

const int mod = 2019;

int main(){
  int64_t l, r; cin >> l >> r;
  if (r - l + 1 >= mod){
    cout << 0 << endl;
    return 0;
  }
  int ans = mod;
  for (int64_t i = l; i < r; i++){
    for (int64_t j = i + 1; j <= r; j++){
      ans = min(i * j % mod, ans);
    }
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:16: error: no matching function for call to 'min(int64_t, int&)'
   15 |       ans = min(i * j % mod, ans);
      |             ~~~^~~~~~~~~~~~~~~~~~
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:15:16: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'int')
   15 |       ans = min(i * j % mod, ans);
      |             ~~~^~~~~~~~~~~~~~~~~~
/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:15:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   15 |       ans = min(i * j % mod, ans);
      |             ~~~^~~~~~~~~~~~~~~~~~
Language: C++

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

int main(){
  int l,r;
  cin >> l >> r;
  int length = (r-l);
  lmod = l%2019;
  if(lmod+length>=2019){cout << 0 << endl;return 0;}
  else{cout << lmod*(lmod+1) << endl;return 0;}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'lmod' was not declared in this scope; did you mean 'fmod'?
    8 |   lmod = l%2019;
      |   ^~~~
      |   fmod
Language: C++

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

int main(){
  int l,r;
  cin >> l >> r;
  int length = (r-l);
  lmod = l%2019;
  if(n+length>=2019){cout << 0 << endl;return 0;}
  else{cout << n*(n+1) << endl;return 0;}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'lmod' was not declared in this scope; did you mean 'fmod'?
    8 |   lmod = l%2019;
      |   ^~~~
      |   fmod
a.cc:9:6: error: 'n' was not declared in this scope
    9 |   if(n+length>=2019){cout << 0 << endl;return 0;}
      |      ^
Language: C++

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

#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

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

int main(){
	ll l,r;
	cin>>l>>r;

	if(r-l>=2019){
		cout<<0<<endl;
		return 0;
	}

	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:23:32: error: no matching function for call to 'min(int&, ll)'
   23 |                         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:23:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long 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:
/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:23:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   23 |                         ans=min(ans,(i*j)%2019);
      |                             ~~~^~~~~~~~~~~~~~~~
Language: C++

#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")

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

#define pb push_back
#define F first
#define S second
#define f(i,a,b)  for(int i = a; i < b; i++)
// #define endl '\n'

using ll = long long;
using db = long double;
using ii = pair<int, int>;

const int N = 1e5+5, LG = 17, MOD = 998244353;
const int SQ = 450;
const long double EPS = 1e-7;

int32_t main(){
#ifdef ONLINE_JUDGE
    ios_base::sync_with_stdio(0);
    cin.tie(0);
#endif
  int l, r;
  cin >> l >> r;

  if(r-l+1>=5000){
    cout<<0<<'\n';
    return 0;
  }
  int ans = 2019;
  f(i,l,r+1)
    f(j,i+1,r+1)
      ans=min(ans,1ll*i*j%2019);

  cout<<ans<<'\n';


  return 0;
}


Compiler output:
a.cc: In function 'int32_t main()':
a.cc:36:14: error: no matching function for call to 'min(int&, long long int)'
   36 |       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:4:
/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:36:14: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   36 |       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:36:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   36 |       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((r-l)>2019){
    cout << 0 << endl;
  }
  
  int com;
  int ans = 2019;
  for(int i=l; i < r; i++){
    for(int j=i+1; j < r+1; j++){
      com = ((i%2019) * (j%2019)) % 2019;
      ans = min(ans, com);
      }
    }
  }
  cout << ans << endl;
}


Compiler output:
a.cc:20:3: error: 'cout' does not name a type
   20 |   cout << ans << endl;
      |   ^~~~
a.cc:21:1: error: expected declaration before '}' token
   21 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

#define rep(i, N) for (int i = 0; i < (int)N; i++)
const ll MOD = pow(10,9)+7;
const ll LLINF = pow(2,61)-1;
const int INF = pow(2,29)-1;


int main() {
  ll L, R; cin >> L >> R;
  if (L/2019!=R/2019) { cout << 0 << endl; return 0; }
  ll result = INF;
  for (int i=L; i<R; i++) {
    for (int j=i+1; j<=R; j++) {
      result = min(result,i*j%2019);
    }
  }
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:19: error: no matching function for call to 'min(ll&, int)'
   18 |       result = min(result,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:18:19: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   18 |       result = min(result,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:18:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   18 |       result = min(result,i*j%2019);
      |                ~~~^~~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
using namespace std;

int main()
{
    long long l, r;
    cin >> l >> r;

    r = (r, r+4038);
    int ans = 2018;
    for(long long i=l; i<r-1; i++){
        for(long long j=i+1; j<r; j++){
            int mod = i*j%2019;
            ans = ans(ans, mod);
        }
    }
    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:22: error: 'ans' cannot be used as a function
   14 |             ans = ans(ans, mod);
      |                   ~~~^~~~~~~~~~
Language: C++

#include<iostream>
using namespace std;
int main(){
  long l,r;
  cin >> l >> r;
  int min = 9999;
  if(r-l >= 4038) cout << 1;
  else{
    long i;
    long j;
    long tmp;
    for(i=l;i<r;i++){
      for(j=i+1;j<=r;j++){
        tmp = ((i%2019) * (j%2019)) % 2019;
        if(tmp < min) min = tmp
      }
    }
    cout << min;
    
    
  }
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:15:32: error: expected ';' before '}' token
   15 |         if(tmp < min) min = tmp
      |                                ^
      |                                ;
   16 |       }
      |       ~
Language: C++

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

int main(){
  int l,r; cin>>l>>r;
  int ans=2020;
  for(int i=l;i<r;i++){
    for(int j=i+1;j<=r;j++){
      long long x=i*j%2019;
      ans=min(ans,x);
      if(ans==0){
        cout<<0<<endl;
        return 0;
      }
    }
  }
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: no matching function for call to 'min(int&, long long int&)'
   10 |       ans=min(ans,x);
      |           ~~~^~~~~~~
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:10:14: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   10 |       ans=min(ans,x);
      |           ~~~^~~~~~~
/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:10:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   10 |       ans=min(ans,x);
      |           ~~~^~~~~~~
Language: C++

#include <bits/stdc++.h>
#define ll long long int
using namespace std;

int main(){
  ll l,r; cin >> l>> r;
  if(r-l>=2019){
    cout << 0 << endl;
    return 0;
  }
 
  
  
  int ans = 2019;
 for(ll i=l; i<=r-1; 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:17:15: error: no matching function for call to 'min(int&, long long int)'
   17 |      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:17:15: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   17 |      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:17:15: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   17 |      ans = min(ans,(i*j)%2019);
      |            ~~~^~~~~~~~~~~~~~~~
Language: Java

import java.util.*;

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

    long l = sc.nextInt();
    long r = sc.nextInt();
    
    int ans = 2019;
    LABEL:for (long i = l; i < r; i++) {
      for (long j = l + 1; j <= r; j++) {
        ans = Math.min(ans, (i * j) % 2019);
        if (ans == 0) break LABEL;
      }
    }
    
    System.out.println(ans);
  }
}


Compiler output:
Main.java:13: error: incompatible types: possible lossy conversion from long to int
        ans = Math.min(ans, (i * j) % 2019);
                      ^
1 error
Language: C++

#include <iostream>
#include <vector>
#include <unordered_map>
#include <map>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <deque>
#include <cmath>
#include <stack>
#include <queue>

#define endl "\n"

using namespace std;

long long int l, r, i, j, a;

int main(){

    cin >> l >> r;
    int x = 2018;

    if(l+1 = r){

    } else{
        for(i = l; i < r-1; i++){
            for(j = i+1; j<=r; j++){
                a = (i*j)%2019;
                if (a < x){
                    x = a;
                }
            }
        }
    }

    cout << x;

}

//g++ -std=c++14 comp.cpp; ./a.exe


Compiler output:
a.cc: In function 'int main()':
a.cc:24:9: error: lvalue required as left operand of assignment
   24 |     if(l+1 = r){
      |        ~^~
Language: Java

vimport java.util.Scanner;
class Main{


	static char[][] map;

	static long[][] c;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);			//文字の入力
		int l = sc.nextInt();
		int r = sc.nextInt();
		long mod = 2019;
		long ans = Integer.MAX_VALUE;
		
		for(int i = l;i <= r;i++){
			for(int j = i+1;j <= r;j++){
				long calc = (i%mod)*(j%mod);
				ans = Math.min(ans, (calc)%mod);

				
			}
		}
		System.out.println(ans);
		

		
	}
	
	static boolean judge(int num){
		
		for(int i = 1;i*i <= num;i++){
			if(i*i == num){
				return true;
			}
		}
		
		return false;
		
		
	}


	static int gcd(int a,int b){				//最大公約数を返す
		if(b == 0){
			return a;
		}else{
			return gcd(b, a%b);
		}
	}
	static long gcd(long a,long b){
		if(b == 0){
			return a;
		}else{
			return gcd(b, a%b);
		}
	}



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




}



class Pair implements Comparable{
	int from;
	int end;
	@Override
	public int compareTo(Object other) {
		Pair otherpair = (Pair)other;

		return   end- otherpair.end;
	}







	static int find(int index,int current,int[] students,int ans,int[][] memo){
		if(current == index){
			return 1;
		}

		if(memo[current][index] != 0){
			return memo[current][index];
		}

		memo[current][index] = find(index, students[current]-1, students, ans+1, memo)+1;

		return memo[current][index];
	}



	static int gcd(int a,int b){				//最大公約数を返す
		if(b == 0){
			return a;
		}else{
			return gcd(b, a%b);
		}
	}
	static long gcd(long a,long b){
		if(b == 0){
			return a;
		}else{
			return gcd(b, a%b);
		}
	}



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




}






Compiler output:
Main.java:1: error: class, interface, enum, or record expected
vimport java.util.Scanner;
^
1 error
Language: C++

#include<stdio.h>
#include<algorithm>
#include<fanctional>
#include<cmath>
#include<numeric>
#include<queue>
#include<string>
#include<vector>
#define ll long long
#define rep(i,n) for(int i=0;i<n;i++)
ll mod = 1000000007;
using namespace std;
priority_queue<ll int>A;//きゅー
int main(void)
{
	ll L, R, ans;
	scanf("%lld%lld", &L, &R);
	for (int i = L; i <= R; i++) {
		if (i % 2019 == 0) {
			printf("0");
			return 0;
		}
	}
	ans = (L % 2019) * ((L + 1) % 2019);
	
	printf("%lld", ans%2019);
	
	return 0;

}

Compiler output:
a.cc:3:9: fatal error: fanctional: No such file or directory
    3 | #include<fanctional>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;
const int INF = 1e9;
const int thisYear = 2019;

int main() {
  ll l, r;
  cin >> l >> r;
  r = min(r, l + 4038);
  ll ans = INF;
  for (ll i = l; i <=r ; ++i) {
    for (ll j = i + 1; j <= r; ++j) {
      int x = i * j % 2019;
      ans = min(ans, x);
    }
  }

  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:16: error: no matching function for call to 'min(ll&, int&)'
   17 |       ans = min(ans, x);
      |             ~~~^~~~~~~~
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:17:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   17 |       ans = min(ans, x);
      |             ~~~^~~~~~~~
/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:17:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |       ans = min(ans, x);
      |             ~~~^~~~~~~~
Language: C++

#include<iostream>
#include<vector>
using namespace std;
int main(void){
    long long int L , R ;
    cin >>L >>R;
    long long int a=2019;
 if (L / 2019 != R / 2019) {
    ans = 0;
  }else{
    
          for(long long j=L+1; j<=R; j++){
            for(long long i=L; i<j; i++){
                if(i*j%2019 < a){
                   a = i*j%2019;
                }
            }
        }
  }    
        cout << a << endl;
    



    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
    9 |     ans = 0;
      |     ^~~
      |     abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ALL(v) (v).begin(),(v).end()
#define REP(i,p,n) for(int i=p;i<(int)(n);++i)
#define rep(i,n) REP(i,0,n)
#define SZ(x) ((int)(x).size())
#define debug(x) cerr << #x << ": " << x << '\n'
#define INF 999999999
typedef long long int Int;
typedef pair<int,int> P;
using ll = long long;
using VI = vector<int>;

int main(){
  Int l,r;cin >> l >> r;
  for(Int i=l;i<=r;i++){
    if(i%2019==0){
      i%=2019;
      cout << (i*(i+1))%2019 << endl;
      return 0;
    }
  }
  l%=2019
  cout << (l*(l+1))%2019 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:10: error: expected ';' before 'cout'
   23 |   l%=2019
      |          ^
      |          ;
   24 |   cout << (l*(l+1))%2019 << endl;
      |   ~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define repl(i,n) for(int64_t i=0;i<(int64_t)(n);i++)
#define ll int64_t
#define all(v) (v).begin(),(v).end()
#define P pair<int,int>
using namespace std;

int main() {
  ll l,r;
  cin >> l >> r;
  r = min (r,l+4038);
  for(ll i=l;i<=r;i++) {
    for (ll j=i+1;j<=r;j++) {
      int x = i*j%2019;
      ans = min(ans,x);
    }
  }
  cout << ans << endl;
  return 0; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |       ans = min(ans,x);
      |       ^~~
      |       abs
a.cc:19:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   19 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
const int mod = 1000000007;
#define rep(i, n) for(int i = 0; i < (n); i++)
///////////////////////////
int main() {
  long long int a,b,ans=2019;
  cin>>a>>b;
  vector<long long int> v;
  if(b-a<=2019){
    for(int i=a;i<=b-1;i++){
      for(int j=i+1;j<=b;j++){
        ans=min(ans,(i%2019)*(j%2019)%2019);
      }
    }
    cout<<ans<<endl;
  }else{
    cout<<0<<endl;
  }
}
///////////////////////////


Compiler output:
a.cc: In function 'int main()':
a.cc:13:16: error: no matching function for call to 'min(long long int&, int)'
   13 |         ans=min(ans,(i%2019)*(j%2019)%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:13:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   13 |         ans=min(ans,(i%2019)*(j%2019)%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:13:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   13 |         ans=min(ans,(i%2019)*(j%2019)%2019);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define all(a)  (a).begin(),(a).end()
#define pb push_back
#define ppb pop_back
#define INF 1e18
typedef long long ll;

using namespace std;

ll mini(ll a, ll b){return a < b ? a:b; }

int main(int argc,char* argv[])
{
    ll a,b;
    cin>>a>>b;
    if(b-a>=2019){cout<<0<<endl;return 0;}
    ll min = INF;
    for(ll i = a; i < b+1;i++)
    {
        for(ll j = i + 1; j < b;j++)
        {
            min = mini(min,i*j%2019);
            if(min == 0)
            {
                cout<<0<<endl;
                return 0;
            }
        }
    }
    cout<<min<<endl;
   

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:32:21: error: expected '}' at end of input
   32 |     cout<<min<<endl;
      |                     ^
a.cc:15:1: note: to match this '{'
   15 | {
      | ^
Language: C++

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

int main(){
  long long l,r,t,ans=2020*2020;cin>>l>>r;
  l%=2019;r%=2019;
  if(l>r){
    t=l;l=r;r=t;
  }
  for(int i=l;i<=r-1;i++){
    for(int j=i+1;j<=r;j++){
      ans=min(ans,(i*j)%2019);
    }
  }
  cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:14: 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/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:12:14: 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
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:12:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   12 |       ans=min(ans,(i*j)%2019);
      |           ~~~^~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
 
using namespace std;
using S = set<long long>;
using D = deque<long long>;
using L = vector<long long>;
using M = map<int,long long>;
using A = vector<vector<long long>>;
using Q = priority_queue<long long>;

#define sorted(vector) sort(vector.begin(),vector.end())
#define vmin(vector) *min_element(vector.begin(),vector.end())
#define vmax(vector) *max_element(vector.begin(),vector.end())
#define vsum(vector) accumulate(vector.begin(),vector.end(),0)
#define vfind(vector,a) find(vector.begin(), vector.end(), a) != vector.end() //遅いからあんまり使うな
#define bisect_left(vector,a) (lower_bound(vector.begin(),vector.end(),a)-vector.begin())
#define bisect_right(vector,a) (upper_bound(vector.begin(),vector.end(),a)-vector.begin())

//__gcd(a,b)はコンパイラがGCC時のみ

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    long long l,r;
    cin>>l>>r;
    if (r-l>=2019){
        cout<<0<<endl;
    }else{
        long ans=1e18;
        for(int i=r  ;i<l+1  ;i++){
            ans=min(i%2019,ans);
        }
        cout<<ans<<endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:20: error: no matching function for call to 'min(int, long int&)'
   30 |             ans=min(i%2019,ans);
      |                 ~~~^~~~~~~~~~~~
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:30:20: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   30 |             ans=min(i%2019,ans);
      |                 ~~~^~~~~~~~~~~~
/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:30:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   30 |             ans=min(i%2019,ans);
      |                 ~~~^~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;typedef long long ll;typedef string str;
typedef vector<str> vst;typedef vector<ll> vll;
ll mod = 1000000007, INF = 10000000000000000;
ll gcd(ll a, ll b){if(b==0){return a;}return gcd(b, a%b);}
int main(){
  ll l,r;
  cin >> l >> r;
  
  ll width = r - l;
  ll s = l;
  l %= 2019;
  
  if(2019 <= l + width || l == 0){
    cout << 0 << endl;
  }else{
    vector<ll> a(width+1);
   for(ll i = 0; i < width + 1 ; i++){
      a[i] = i + l;
    }
    
    sort(a.begin(), a.end());
    
    cout << ((a[0] * a[1]) %= 2019) << endl;
  }
  
  
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:24:20: error: lvalue required as left operand of assignment
   24 |     cout << ((a[0] * a[1]) %= 2019) << endl;
      |              ~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
typedef pair<ll,ll> P;
#define M 1000000007
int main(){
  ll n,k,c=2100;
  cin>>n>>k;
  for(int i=n;i<k;i++){
    if(i<n+2019){
      for(int j=i+1;j<=k;j++){
        if(j<i+2019){
          c=min(c,i*j%2019);
        }
      }
    }
  }
  cout<<c;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:16: error: no matching function for call to 'min(long long int&, int)'
   13 |           c=min(c,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:13:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   13 |           c=min(c,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:13:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   13 |           c=min(c,i*j%2019);
      |             ~~~^~~~~~~~~~~~