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

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: no matching function for call to 'min(ll, int&)'
   14 |       ans = min((i*j)%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:14:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   14 |       ans = min((i*j)%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:14:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   14 |       ans = min((i*j)%2019, ans);
      |             ~~~^~~~~~~~~~~~~~~~~
Language: C++

using namespace std;
typedef long long ll;
#define rep(k,i,n) for(ll i=k;i<n;++i)
int main(void){
    // Your code here!
    const ll mod=2019;
    ll L,R;
    cin>>L>>R;
    ll ans=1e12;
    rep(L,i,R+1){
        rep(i+1,j,R+1){
            ans=min(ans,(i*j)%mod);
            if(ans==0)break;
        }
    }
    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'cin' was not declared in this scope
    8 |     cin>>L>>R;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:12:17: error: 'min' was not declared in this scope; did you mean 'main'?
   12 |             ans=min(ans,(i*j)%mod);
      |                 ^~~
      |                 main
a.cc:16:5: error: 'cout' was not declared in this scope
   16 |     cout<<ans<<endl;
      |     ^~~~
a.cc:16:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:16: error: 'endl' was not declared in this scope
   16 |     cout<<ans<<endl;
      |                ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

#include <iostream>
#include <cmath>

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

    long long min = 2 * std::pow(10, 9);
    for(int i = l; i < r; ++i){
        for(int j = i + 1; j <= r; ++j){
            min = std::min(min, (i * j) % 2019);
        }
    }

    std::cout << min << std::endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:27: error: no matching function for call to 'min(long long int&, int)'
   11 |             min = std::min(min, (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:11:27: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   11 |             min = std::min(min, (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>
using namespace std;

int main(){
    int L,R;
    cin >> L >> R;
    if (R >= L + 2019){
        cout << 0 << endl;
    }
    else{
        int ans = 2019;
        for (int i = L; i < R;i++){
            for (int j = i+1; j <= R; j++){
                int I = i % 2019;
                int J = j % 2019;
                ans = min(ans, k%2019);
            }
        }
        cout << ans << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:32: error: 'k' was not declared in this scope
   16 |                 ans = min(ans, k%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;
    }
    else{
        int ans = 2019;
        for (int i = L; i < R;i++){
            for (int j = i+1; j <= R; j++){
                int64_t k = i * j;
                ans = min(ans, k%2019);
            }
        }
        cout << ans << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:26: error: no matching function for call to 'min(int&, int64_t)'
   15 |                 ans = min(ans, k%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:15:26: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'int64_t' {aka 'long int'})
   15 |                 ans = min(ans, k%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:15:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   15 |                 ans = min(ans, k%2019);
      |                       ~~~^~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i=0; i<(n); ++i)
#define repr(i, a, b) for (int i=a; i<(b); ++i)
#define reprev(i, n) for (int i=n-1; i>=0; --i)
#define reprrev(i, a, b) for (int i=b-1; i>=(a); --i)
using namespace std;
typedef long long ll;
typedef pair<int, int> P;

int main() {
    cout << fixed << setprecision(10);
    // 2019の約数は 1, 3, 673, 2019
    ll L, R; cin >> L >> R;
    ll syou = L/2019;
    if (L/2019 < R/2019) {
        // LとRの間にmod 2019が0になるものが存在する場合
        cout << 0 << endl;
    } else {
        // mod 2019が0となるものが存在しない場合つまり、1 <= L < R <= 2018の場合
        ll min_mod = 2019;
        repr(i, L, R) {
            repr(j, i+1, R+1) {
                min_mod = min(min_mod, (i*j)%2019);
            }
        }
        cout << min_mod << endl;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:30: error: no matching function for call to 'min(ll&, int)'
   23 |                 min_mod = min(min_mod, (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:23:30: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   23 |                 min_mod = min(min_mod, (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:23:30: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   23 |                 min_mod = min(min_mod, (i*j)%2019);
      |                           ~~~^~~~~~~~~~~~~~~~~~~~~
Language: C++

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

int main() {
	long L, R;
	unsigned int ans=2020;
	cin >> L >> R;
	if (R-L>=672)
	{
		ans = 0;
	}
	else
	{
		for (size_t i = L; i <= R; i++)
		{
			for (size_t j = i+1; j <= R; j++)
			{
				ans = min(ans, (i%2019)*(i%2019));//それぞれ剰余を取らないとあふれる
			}
		}
	}
	cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:42: error: no matching function for call to 'min(unsigned int&, size_t)'
   18 |                                 ans = min(ans, (i%2019)*(i%2019));//それぞれ剰余を取らないとあふれる
      |                                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~
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:18:42: note:   deduced conflicting types for parameter 'const _Tp' ('unsigned int' and 'size_t' {aka 'long unsigned int'})
   18 |                                 ans = min(ans, (i%2019)*(i%2019));//それぞれ剰余を取らないとあふれる
      |                                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~
/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:18:42: note:   mismatched types 'std::initializer_list<_Tp>' and 'unsigned int'
   18 |                                 ans = min(ans, (i%2019)*(i%2019));//それぞれ剰余を取らないとあふれる
      |                                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~
Language: C

#include <stdio.h>
#include <stdlib.h>

int main()
{
int L,R;
scanf("%d %d",&L,&R);
int i,s;
if(R-L>=2018){
  printf("0\n");
  exit(0);
}
if(R%2019 == 0){
  printf("0\n");
  exit(0);
}
int m=2018;
for(i=L;i<R;i++){
  for(j=i+1;j<=R;j++){
    s=(i*j)%2019;
    if(s<=m)m=s;
  }
}
printf("%d\n",m);
return 0;
}


Compiler output:
main.c: In function 'main':
main.c:19:7: error: 'j' undeclared (first use in this function)
   19 |   for(j=i+1;j<=R;j++){
      |       ^
main.c:19:7: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<cstdio>
int main()
{
	long long int a,b,i,ss=10000,s;
	scanf("%lld%lld",&a,&b);
	 if(b/2019>a/2019)
	printf("0\n");
	else
	{
	for(i=a;i<b;i++)
	for(j=i+1;j<b;j++)
	{
		s=(i*j)%2019;
		if(s<ss)
		ss=s;
	}
	printf("%lld",ss);
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: 'j' was not declared in this scope
   11 |         for(j=i+1;j<b;j++)
      |             ^
Language: C++

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

using ll = long long;

#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define reps(i, x) for(int i=1;i<=(int)(x);i++)
#define rrep(i, x) for(int i=((int)(x)-1);i>=0;i--)
#define rreps(i, x) for(int i=(int)(x);i>0;i--)
#define all(x) (x).begin(),(x).end()
#define m0(x) memset(x,0,sizeof(x))
#define vll vector<ll>
#define vi vector<int>
#define vpll vector<pair<ll,ll>>
#define vpi vector<pair<int,int>>
#define mod 1000000007
#define put2darr(arr, row, col) rep(i, row) { rep(j, col) { printf("%18d", arr[i][j]); } cout << endl; }

using namespace std;

template<class T>
inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}

template<class T>
inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return 1;
    }
    return 0;
}

/* 1..10
 * rep:   0 1 2 3 4 5 6 7 8 9
 * reps:  1 2 3 4 5 6 7 8 9 10
 * rrep:  9 8 7 6 5 4 3 2 1 0
 * rreps: 10 9 8 7 6 5 4 3 2 1
 */
int x[10][10];

int main() {
    ll l, r;
    cin >> l >> r;
    if(l / 2019 < r / 2019){
        cout << 0 << endl;
    } else{
        cout << min((l*(l+1)) % 2019,(r-1)*r) %2019) << endl;
    }
}



Compiler output:
a.cc: In function 'int main()':
a.cc:66:52: error: expected ';' before ')' token
   66 |         cout << min((l*(l+1)) % 2019,(r-1)*r) %2019) << endl;
      |                                                    ^
      |                                                    ;
Language: C++

#include<iostream>
using namespace std;
int main()
{
    int a,b;scanf("%d%d",&a,&b);
    int m =INT_MAX;
    for(int i=a;i<=b;i++)
    {
        for(int j=i+1;j<=b;j++)
        {
            m = min(m,(i%2019*j%2019)%2019);
        }
    }
    cout<<m;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:12: error: 'INT_MAX' was not declared in this scope
    6 |     int m =INT_MAX;
      |            ^~~~~~~
a.cc:2:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include<iostream>
  +++ |+#include <climits>
    2 | using namespace std;
Language: C++

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

int main() {
  long long L,R;
  cin >> L >> R;
  if (R - L > 2020) {
    cout << 0 << endl;
  }
  else {
    long long ans = 1000000000;
    for (long long i = L; i <= R; i++) {
      for (long long j = L; j <= R;j++ ) {
        if (i > j) {
          ii = i % 2019;
          jj = j % 2019;
          ans = min(ans,ii*jj);
        }
      }
    }
    cout << ans << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: 'ii' was not declared in this scope; did you mean 'i'?
   15 |           ii = i % 2019;
      |           ^~
      |           i
a.cc:16:11: error: 'jj' was not declared in this scope; did you mean 'j'?
   16 |           jj = j % 2019;
      |           ^~
      |           j
Language: C++

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

int main() {
  long long L,R;
  cin >> L >> R;
  if (R - L > 2020) {
    cout << 0 << endl;
  }
  else {
    long long ans = 10000000;
    for (long long i = L; i <= R; i++) {
      for (long long j = L; j <= R;j++ ) {
        if (i > j) {
          ii = i % 2019;
          jj = j % 2019;
          ans = min(ans,ii*jj);
        }
      }
    }
    cout << ans << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: 'ii' was not declared in this scope; did you mean 'i'?
   15 |           ii = i % 2019;
      |           ^~
      |           i
a.cc:16:11: error: 'jj' was not declared in this scope; did you mean 'j'?
   16 |           jj = j % 2019;
      |           ^~
      |           j
Language: C++

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

int main() {
  long long L,R;
  cin >> L >> R;
  if (R - L > 2020) {
    cout << 0 << endl;
  }
  else {
    long long ans = 10000000;
    for (long long i = L; i <= R;; i++) {
      l = L % 2019;
      r = R % 2019;
      ans = min(ans, l*r);
    }
    cout << ans << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:34: error: expected primary-expression before ';' token
   12 |     for (long long i = L; i <= R;; i++) {
      |                                  ^
a.cc:12:34: error: expected ')' before ';' token
   12 |     for (long long i = L; i <= R;; i++) {
      |         ~                        ^
      |                                  )
a.cc:12:36: error: 'i' was not declared in this scope
   12 |     for (long long i = L; i <= R;; i++) {
      |                                    ^
Language: Java

import java.util.*;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
   int L = sc.nextInt();
   int R = sc.nextInt();
   boolean zero = false; 
   
   if(L-R>=2019) zero = true;
   for(int i = L;i<R;i++)
   {
     if(i%2019==0) 
     {
       zero = true;
       break;
     }
   }
   L = L%2019;
   R = (R%2019) + 2019;
   int min = 2017*2018;
   if(!flg)
   {
     for(int i = L;i<R;i++)
     {
       for(int k = i;k<=R;k++)
       {
          if(min>(i*k)%2019) min = (i*k)%2019;         
       }
     }
   }
   if(flg) System.out.println(0);
   else System.out.println(min);
 }
}

Compiler output:
Main.java:21: error: cannot find symbol
   if(!flg)
       ^
  symbol:   variable flg
  location: class Main
Main.java:31: error: cannot find symbol
   if(flg) System.out.println(0);
      ^
  symbol:   variable flg
  location: class Main
2 errors
Language: C++

# include<bits/stdc++.h>
using namespace std;
int main(){
long long int L,R;
  cin >> L >> R;
  //
  if(L/2019 != R/2019) cout << 0 <<'\n';
  else {
    int temp, l = L%2019, r = R%2019, res = 2019;
  	for (int i = l; i <r+1; i++){
    	for (int j = l; j < i; j++){
        	temp = (i*j)%2019	
          if(res > temp)
              res = temp;
        }
    }
  	cout << res << '\n';
  }

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:40: error: expected ';' before 'if'
   12 |                 temp = (i*j)%2019
      |                                  ^      
      |                                        ;
   13 |           if(res > temp)
      |           ~~
Language: C++

# include<bits/stdc++.h>
using namespace std;
int main(){
long long int L,R;
  cin >> L >> R;
  //
  if(L/2019 != R/2019) cout << 0 <<'\n';
  else {
    int l = L%2019, r = R%2019, res = 2019;
  	for (int i = l; i <r+1; i++){
    	for (int j = l; j < i; j++){
        	temp = (i*j)%2019	
          if(res > temp)
              res = temp;
        }
    }
  	cout << res << '\n';
  }

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: 'temp' was not declared in this scope; did you mean 'tm'?
   12 |                 temp = (i*j)%2019
      |                 ^~~~
      |                 tm
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:15:17: error: expected ',' or ';' before 'if'
   15 |                 if(min > temp) min = temp;
      |                 ^~
Language: C++

#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
#define ll long long

int main() {
  ll L,R,ipos; cin >> L >> R;
  ll ipos = L;
  ll lmod = L%2019;
  ll rmod = R%2019;
  ll llim = min(L+2019,R-1);
  for (ll i = L; i <= llim; ++i) {
    if(lmod > i%2019) {
      lmod = i%2019;
      ipos = i;
    }
  }
  ll rlim = max(R-2019,L);
  for (ll i = R; i >= rlim; --i) {
    if (rmod > i%2019 && i != ipos) rmod = i%2019;
  }
  cout << (lmod*rmod)%2019 << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:6: error: redeclaration of 'long long int ipos'
    8 |   ll ipos = L;
      |      ^~~~
a.cc:7:10: note: 'long long int ipos' previously declared here
    7 |   ll L,R,ipos; cin >> L >> R;
      |          ^~~~
Language: C++

#include <iostream>

using namespace std;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:14:36: error: expected ';' before ')' token
   14 |         cout<<(l%2019)*((l+1))%2019)%2019;
      |                                    ^
      |                                    ;
Language: C++

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


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

Compiler output:
a.cc: In function 'int main()':
a.cc:15:18: error: no matching function for call to 'min(int&, ll)'
   15 |         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:15:18: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   15 |         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:15:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   15 |         ans = min(ans, ((i*j)%2019));
      |               ~~~^~~~~~~~~~~~~~~~~~~
Language: C++

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

int main(void) {
  long long L, R;
  cin >> L >> R;
  long long mi = LONG_LONG_MAX;
  if (R - L >= 2019) {
    mi = 0;
  } else {
    for (int i = L; i < R; i++) {
      for (int j = i + 1; j <= R; j++) {
        mi = min(mi, (i * j) % 2019);
      }
    }
  }
  cout << mi << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:17: error: no matching function for call to 'min(long long int&, int)'
   13 |         mi = min(mi, (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:13:17: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   13 |         mi = min(mi, (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:13:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   13 |         mi = min(mi, (i * j) % 2019);
      |              ~~~^~~~~~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <utility>
#include <functional>
#include <numeric>
#include <list>
#include <set>
#include <map>
#include <algorithm>
#include <cmath>
#include <limits>
#include <iomanip>
#include <bitset>
#include <queue>
#include <unordered_set>
#include <unordered_map>

using namespace std;
typedef long long ll;
typedef pair<int,int> pii;

#define rep(i, n) for(int i = 0;i < n;i++)
const int INF = 1LL << 30;
const int MOD = 1000000007;

int main(){
    std::ios_base::sync_with_stdio(false);
    cin.tie(0);

    ll l,r; cin >> l >> r;

    int ans = 1000000;
    
    for(ll i=l; i<=min(r,2019*2+l); i++){
        for(ll j=i+1;j<=min(r,2019*2+l); j++){
            ans = min(ans, i%2019*j%2019);
        }
    }
    

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:22: error: no matching function for call to 'min(int&, ll)'
   37 |             ans = min(ans, i%2019*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:37:22: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   37 |             ans = min(ans, i%2019*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:10:
/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:37:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   37 |             ans = min(ans, i%2019*j%2019);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (long i = 0; i < (n); i++)
using namespace std;
int main()
{
    long l, r;
    cin >> l >> r;
    long mod = 2019;
    r = r - l + 1;
    l = l % mod;
    long list[r];
    if(r>=mod){
        cout << 0 << endl;
        return 0;
    }
    long(i, r) list[i] = (l+i)%mod;
    l = 2019;
    long(i, r - 1)rep(j, r - i - 1) l = min(l, list[i] * list[i + j + 1]%mod);
    cout << l << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:10: error: 'i' was not declared in this scope
   16 |     long(i, r) list[i] = (l+i)%mod;
      |          ^
a.cc:16:14: error: expression list treated as compound expression in functional cast [-fpermissive]
   16 |     long(i, r) list[i] = (l+i)%mod;
      |              ^
a.cc:18:18: error: expression list treated as compound expression in functional cast [-fpermissive]
   18 |     long(i, r - 1)rep(j, r - i - 1) l = min(l, list[i] * list[i + j + 1]%mod);
      |                  ^
a.cc:18:23: error: 'j' was not declared in this scope
   18 |     long(i, r - 1)rep(j, r - i - 1) l = min(l, list[i] * list[i + j + 1]%mod);
      |                       ^
a.cc:2:36: note: in definition of macro 'rep'
    2 | #define rep(i, n) for (long i = 0; i < (n); i++)
      |                                    ^
Language: C++

#include <iostream>
using namespace std;

#define rep(i,n) for(int i=0; i<n; i++)
#define repr(i,a,b) for(int i=a; i<b; i++)

int main(void) {
  int L,R;
  cin >> L >> R;
  if(R-L > 2019) {
    cout <<  0 << endl;
    return 0;
  }

  int ans = 2020;
  repr(i,L,R) {
    repr(j,i+1,R) {
      ans = min(ans, (i*j)%2019);
    }
  }

  cout << ans << endl;

  return 0;
}#include <iostream>
using namespace std;

#define rep(i,n) for(int i=0; i<n; i++)
#define repr(i,a,b) for(int i=a; i<b; i++)

int main(void) {
  int L,R;
  cin >> L >> R;
  if(R-L > 2019) {
    cout <<  0 << endl;
    return 0;
  }

  int ans = 2020;
  repr(i,L,R) {
    repr(j,i+1,R) {
      ans = min(ans, (i*j)%2019);
    }
  }

  cout << ans << endl;

  return 0;
}

Compiler output:
a.cc:25:2: error: stray '#' in program
   25 | }#include <iostream>
      |  ^
a.cc:25:3: error: 'include' does not name a type
   25 | }#include <iostream>
      |   ^~~~~~~
a.cc:31:5: error: redefinition of 'int main()'
   31 | int main(void) {
      |     ^~~~
a.cc:7:5: note: 'int main()' previously defined here
    7 | int main(void) {
      |     ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;


int main(int argc, char const *argv[]) {
  long long l, r, i, j; cin >> l >> r;
  long long ans = 100000;

  int min = 2020;
  for (size_t i = L; i < R + 1; i++) {
    for (size_t j = i + 1; j < R + 1; j++) {
      ans = min(ans, i % 2019 * j % 2019);
      if (ans == 0) break;
    }
    if (ans == 0) break;
  }
  std::cout << ans << '\n';
  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:13:19: error: 'L' was not declared in this scope
   13 |   for (size_t i = L; i < R + 1; i++) {
      |                   ^
a.cc:13:26: error: 'R' was not declared in this scope
   13 |   for (size_t i = L; i < R + 1; i++) {
      |                          ^
a.cc:15:16: error: 'min' cannot be used as a function
   15 |       ans = min(ans, i % 2019 * j % 2019);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

int main() {
  int count=3000;
  long L,R;
  cin>>L>>R;
  if(R-L>2030){
    cout<<0;
    return 0;
  }
  for(long i=L;i<=R-1;i++){
    for(long j=i+1;j<=R;j++){
      count=min(count,(i*j)%2019);
      if(count==0){
        cout<<0;
        return 0;
      }
    }
  }
  cout<<count;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:16: error: no matching function for call to 'min(int&, long int)'
   15 |       count=min(count,(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:15:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long int')
   15 |       count=min(count,(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:15:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   15 |       count=min(count,(i*j)%2019);
      |             ~~~^~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  long L,R;
  cin>>L>>R;
  if(R-L>=2019)cout<<0<<endl;
  else{
    int x=2019;
    for(long i=L;i<R;i++){
      for(long j=i+1;j<R+1;j++){
       int I=i%2019;
        int J=j%2019
        int l=(I*J)%2019;
        x=min (x,l);
      }
    }
    cout<<x<<endl;
  }
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: expected ',' or ';' before 'int'
   13 |         int l=(I*J)%2019;
      |         ^~~
a.cc:14:18: error: 'l' was not declared in this scope
   14 |         x=min (x,l);
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  long L,R;
  cin>>L>>R;
  if(R-L>=2019)cout<<0<<endl;
  else{
    int x=2019;
    for(int i=L;i<R;i++){
      for(int j=i+1;j<R+1;j++){
        int l=(i*j)%2018;
        x=min (x,l);
      }
    }
    cout<<l<<endl;
  }
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: 'l' was not declared in this scope
   15 |     cout<<l<<endl;
      |           ^
Language: C++

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

int main() {
    long long l,r;
    cin >> l >> r;
    while(r>=2019){
        r -= 2019;
        l -= 2019;
    }
    if(r-l>2019){
        cout << 0 << endl;
    }
    else{
        long long ansa;
        ansa=2e9+1;
        for(long long i=l; i<r; ++i){
            for(long long j=1+l; j<=r; ++j){
                if(((i*j)%2019)<ansa){
                    ansa = (i*j)%2019;
            }
        }
    }
    cout << ansa <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:2: error: expected '}' at end of input
   25 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main(){
  ull L, R;
  cin >> L >> R;
  ull min = 3000000000, tmp;
  
  for (ull i = L; i <= R; i++) {
    tmp = i % 2019;
    min = min(min, tmp);
  }
  
  ull ans = (min % 2019) * ((min + 1) % 2019);
  cout << ans;
  
  return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:12:14: error: 'min' cannot be used as a function
   12 |     min = min(min, tmp);
      |           ~~~^~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long int
int gcd(int a, int b) {  
  return b != 0 ? gcd(b, a % b) : a;
}//MAX
int lcm(int a, int b) { 
   return a * b / gcd(a, b);
   }
//MIN
 main() {
   ll l,r;int ans = 2020;
   cin >> l >>r;
   if(r-l>=2019)return cout << 0,0;
   for(ll j=l;j<=r;j++){
     for(ll i=l;i<j;i++)
       ans = min(ans,(i*j)%2019);
     
   }
   cout << ans;
 }
 


Compiler output:
a.cc:11:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 |  main() {
      |  ^~~~
a.cc: In function 'int main()':
a.cc:17:17: 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:17:17: 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:17:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   17 |        ans = min(ans,(i*j)%2019);
      |              ~~~^~~~~~~~~~~~~~~~
Language: C++

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

int main(){
  long int l, r;
  cin >> l >> r;
  if(r - l + 1 > 2018){
    int ma = 2019;
  }else{
    int ma = r - l + 1;
  }
  vector<int> amari(ma);
  for(int i = 0; i < ma; i++){
    amari.at(i) = i % 2019;
  }
  sort(amari.begin(), amari.end());
  cout << amari.at(0) * amari.at(1);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:21: error: 'ma' was not declared in this scope; did you mean 'fma'?
   12 |   vector<int> amari(ma);
      |                     ^~
      |                     fma
Language: C++

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

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

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

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

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

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


#include <iostream>
using namespace std;

int main()
{
  int L, R;
  cin >> L >> R;
  if (0 == L%2019 || L/2019 < R/2019)
  {
    cout << 0;
    return;
  }
  auto l = L%2019;
  auto r = R%2019;
  int ans = 2019;
  for (int i = l; i < r; ++i)
    for (int j = i + 1; j <= r; ++j)
      if ((i*j)%2019 < ans)
        ans = (i*j)%2019;
  cout << ans;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   12 |     return;
      |     ^~~~~~