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

#include<iostream>
#include<string>
#include<cstdio>
#include<algorithm>
#include<cstdlib>
#include<cmath>
#include<vector>
#include<utility>
#include<queue>
#include<stack>
#include<set>
#include<map>
#include<unordered_set>
#include<unordered_map>
#include<bitset>
using namespace std;
#define INF 2000000007
#define LINF 100000000000000007
#define MOD 1000000007
#define int long long
#define rep(i,n) for(int i=0;i<n;i++)
#define repb(i, n) for (int i = n - 1; i >= 0; i--)
#define MODE 0
#ifdef MODE
#define DEB(X) cout<< #X <<": "<<X<<" ";
#define ARDEB(i,X) cout<< #X <<"["<<i<<"]: "<<X[i]<<" ";
#define END cout<<endl;
#else
#define DEB(X) {}
#define ARDEB(i,X) {}
#define END {}
#endif
typedef long long ll;
typedef pair<int,int> P;
struct edge{int to,cost;};
int ceil2(int a,int b){if(a%b){return a/b+1;}else{return a/b;}}
using namespace std;

int n,ans;
string s;
int extra[211111];
signed main(){
	cin>>s;
	reverse(s.begin(),s.end());
	int now=0,te=1;
	rep(i,s.size()){
		now=(s[i]-'0')*te+now;
		now%=2019;
		//cout<<s[i];
		extra[i]=now;
		te*=10;
	}
	//rep(i,s.size())cout<<i+1<<":"<<extra[i]<<endl;
	int cnt[2300]={0};
	cnt[0]++;
	rep(i,s.size()){
		cnt[extra[i]]++;
	}
	for(int i=0;i<=2019;i++){
		ans+=cnt[i]*(cnt[i]-1)/2;
	}
	cout<<ans<<endl;
}

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

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

const ll MOD = 1000000007;

#ifndef ONLINE_JUDGE
template <class T, class U>ostream &operator<<(ostream &o, const map<T, U>&obj) {o << "{"; for (auto &x : obj) o << " {" << x.first << " : " << x.second << "}" << ","; o << " }"; return o;}
template <class T>ostream &operator<<(ostream &o, const set<T>&obj) {o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr) o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o;}
template <class T>ostream &operator<<(ostream &o, const multiset<T>&obj) {o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr) o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o;}
template <class T>ostream &operator<<(ostream &o, const vector<T>&obj) {o << "{"; for (int i = 0; i < (int)obj.size(); ++i)o << (i > 0 ? ", " : "") << obj[i]; o << "}"; return o;}
template <class T, class U>ostream &operator<<(ostream &o, const pair<T, U>&obj) {o << "{" << obj.first << ", " << obj.second << "}"; return o;}
template <template <class tmp>  class T, class U> ostream &operator<<(ostream &o, const T<U> &obj) {o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr)o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o;}
void print(void) {cout << endl;}
template <class Head> void print(Head&& head) {cout << head;print();}
template <class Head, class... Tail> void print(Head&& head, Tail&&... tail) {cout << head << " ";print(forward<Tail>(tail)...);}
#else
#define print(...)
#endif


int main(void){

    string s;
    ll ans = 0;

    cin >> s;

    for(ll it = 4; it < s.length(); it++){
        if(it < 19){
            for(ll i=0; i<s.length()-it+1; i++){
                ll num = stoll(s.substr(i,it));
                if(num%2019ll == 0ll){
                    ans++;
                }
            }
        }else{
            bool ok = true;
            for(ll step=0; step+8 < it; step += 8){
                ll num = stoll(s.substr(step,step+8));
                if(num%2019ll != 0ll){
                    ok = false;
                }
            }
            if(ok){
                ll num = stoll(s.substr(s.length()-16,16);
                if(num%2019ll == 0ll){
                    ans++;
                }
            }
        }
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:48:58: error: expected ')' before ';' token
   48 |                 ll num = stoll(s.substr(s.length()-16,16);
      |                               ~                          ^
      |                                                          )
Language: C++

#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

string S;

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

    cin >> S;

    if (S.size < 3) {cout << 0 << endl; return 0;}

    long long cnt = 0;
    string tmp = "";
    for (size_t i = 0; i < S.size(); i++) {
        tmp = "";
        tmp += S[i];
        for (size_t j = i+1; j < S.size(); j++) {
            tmp += S[j];
            if (stoll(tmp) % 3 == 0 && stoll(tmp) % 673 == 0)
                cnt++;
        }
    }
    cout << cnt << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:11: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
   13 |     if (S.size < 3) {cout << 0 << endl; return 0;}
      |         ~~^~~~
      |               ()
Language: C++

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String S = sc.nextLine();
        int len = S.length();
        int num = 0;
        for (int i = 0; i < len - 3; i++) {
            for (int j = i+3; j < len; j++) {
                if (S.charAt(i) == 1) {
                    j++;
                }
                int sum = 0;
                for (int k = i; k <= j; k++) {
                    sum = sum * 10 + (S.charAt(k)-'0');
                }
                if (sum % 2019 == 0) {
                    num++;
                }
            }
        }

        System.out.println(num);
    }

}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){string S;cin>>S;int b=S.size();int x=0;
           for(int i=0;i<b-3;i++){string p=S.substr(i,b-i)int q=atoi(p.c_str());while(q<2019){if(q%2019==0)x++;q/10;}}
           cout<<x<<endl;}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:59: error: expected ',' or ';' before 'int'
    4 |            for(int i=0;i<b-3;i++){string p=S.substr(i,b-i)int q=atoi(p.c_str());while(q<2019){if(q%2019==0)x++;q/10;}}
      |                                                           ^~~
a.cc:4:87: error: 'q' was not declared in this scope
    4 |            for(int i=0;i<b-3;i++){string p=S.substr(i,b-i)int q=atoi(p.c_str());while(q<2019){if(q%2019==0)x++;q/10;}}
      |                                                                                       ^
Language: C

#include<algorithm>
#include<iostream>
#include<vector>
#include<string>
#include<queue>
#include<stack>
#include<cmath>
#include<list>
#include<set>
#include<map>

using namespace std;
long long MOD = 1000000007LL;
#undef INT_MIN
#undef INT_MAX
#define INT_MIN -2147483648
#define INT_MAX 2147483647
#define endl "\n"

int main() {
	string s;
	cin >> s;
	int count = 0;
	for (int i = 0; i < s.length() - 1; ++i) {
		unsigned long long buf = 0;
		for (int j = i; j < s.length(); ++j) {
			buf *= 10 % MOD;
			char c = s[j];
			buf += (c - 0x30);
			if (buf % 2019 == 0) {
				++count;
			}
		}
	}

	cout << count << endl;
	return 0;
}



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

#include<iostream>
#include<string>
#include<sstream>
using namespace std;
int main(){
  string s;
  istringstream ss1;
  cin>>s;
  int sum=0;
  for(int i=0; i<=s.size(); i++){
    //iの位置
    for(int j=i; j<=s.size(); j++){
      //jの位置
      int num;
      int c=1;
      for(int k=j; k>=i; k--){
        int kari;
        ss1=istringstream(s[k]);
        ss1>>kari;
        num+=kari*c;
        c*=10;
      }
      if(num>=2019&&num%2019==0){
        sum++;
      }
    }
  }
  cout<<sum;
  return 0; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:31: error: invalid conversion from '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} to 'std::ios_base::openmode' [-fpermissive]
   18 |         ss1=istringstream(s[k]);
      |                               ^
      |                               |
      |                               __gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}
In file included from a.cc:3:
/usr/include/c++/14/sstream:597:46: note:   initializing argument 1 of 'std::__cxx11::basic_istringstream<_CharT, _Traits, _Alloc>::basic_istringstream(std::ios_base::openmode) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::ios_base::openmode = std::ios_base::openmode]'
  597 |       basic_istringstream(ios_base::openmode __mode)
      |                           ~~~~~~~~~~~~~~~~~~~^~~~~~
Language: C

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef pair<int, int> P;
#define rep(i,n) for(int i=0;i<(n);i++)
#define rep1(i,n) for(int i=1;i<=(n);i++)
#define all(x) (x).begin(),(x).end()

constexpr auto INF = INT_MAX/2;
constexpr auto MOD = 1000000007;

int main() {

	string s;
	cin >> s;

	vi md(2019, 0);
	vi md2(2019, 0);

	ll ans = 0;

	rep(i, s.size()) {
		int k = s[i] - '0';

		rep(j, 2019) {
			md[(10 * j + k) % 2019] = md2[j];
		}

		ans += md[0];

		rep(j, 2019) {
			md2[j] = md[j];
		}

		md[k]++;md2[k]++;
	}

	cout << ans << endl;

}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.*;
import java.math.*;

public class Prac1 {  
	
	public static void main(String[] args)  
	 { 
		Scanner in=new Scanner(System.in);
	    String s=in.next();
	    int count=0;
	    for(int i=0;i<s.length();i++)
	    {
	      if(i+4<=s.length())
	         {
	             for(int j=i+4;j<s.length();j++)
	             {
	               String x=s.substring(i,j+1);
	               long v=Long.parseLong(x);
	               if(v%2019==0)
	                 count=count+1;
	             }
	         }
	      }
	    System.out.print(count);
	  }
	}

Compiler output:
Main.java:4: error: class Prac1 is public, should be declared in a file named Prac1.java
public class Prac1 {  
       ^
1 error
Language: C

import itertools

s = input()
A = list(int(x) for x in s)
S = [0] * (len(s) + 1)
S[1:] = itertools.accumulate(A)

ans = 0
for j in range(4, len(s)):
    for i in range(len(s) - j + 1):
        x = int(s[i:i + j])
        if (S[i + j] - S[i]) % 3 == 0:
            if int(s[i:i + j]) % 673 == 0:
                ans += 1
                i = i + j - 1
print(ans)


Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import itertools
      | ^~~~~~
main.c:3:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's'
    3 | s = input()
      | ^
Language: C

#include <iostream>
using namespace std;
typedef long long ll;
//template<class itr> void cins(itr first, itr last){ for(auto i = first; i != last; i++){ cin >> (*i); } }
/*
string S_str[H];
cins(S_str, S_str + H);
S_str[i][j];
*/
inline int at(ll x, int k){ return (x >> k) & 1; }
#define rep(i, n) for(ll i = 0; i < n; i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)

int N;
string S;
int cnt[2019];
int main() {
	cin >> S;
	ll ans = 0;
  ll N = S.length();


		int cu = 0; int dg = 1;

		rrep(i, N - 1, 0) {
			cu = (cu + dg * (S[i] - '0')) % 2019;
			dg = (dg * 10) % 2019;

			ans += cnt[cu];
			if (cu == 0) ans++;

			cnt[cu]++;
		}


	cout << ans << endl;
}



Compiler output:
main.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: Java

import java.io.IOException;
import java.io.InputStream;
import java.util.*;
 
public class Main {
    public  static void main(String[] args) {
        FastScanner sc = new FastScanner();
         String text = sc.next();
         int a;
         int count = 0;
         try {
             for (int i = 0; i < text.length() - 4; i++) {
                 for (int j = i + 3; j < text.length(); j++) {
                     a = Integer.parseInt(text.substring(i, j));
                         if (a % 2019 == 0) {
                             count++;
                         }
                 }
             }
         }catch(IOException e) {
             
         }
         System.out.print(count);
    }
}
 
class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
 
}

Compiler output:
Main.java:20: error: exception IOException is never thrown in body of corresponding try statement
         }catch(IOException e) {
          ^
1 error
Language: C

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mp makepair
#define deb(x) cout<<x<<"\n";
#define deB(x,y) cout<<x<<" "<<y<<"\n";
#define Deb(x,y,z) cout<<x<<" "<<y<<" "<<z<<"\n" 
#define YES cout<<"YES\n";
#define Yes cout<<"Yes\n";
#define NO cout<<"NO\n";
#define No cout<<"No\n";
#define all(v) (v).begin(),(v).end()
int main()
{
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  //freopen("input.txt", "r", stdin);
  //freopen("output.txt", "w", stdout);
  string s;
  cin>>s;
  s='!'+s;
  ll R,r,p,j,i=1;
  set<ll> a[s.size()+9];
  ll ans=0;
  while(i<s.size())
  {
  	R=0;
  	r=0;
  	p=0;
  	j=i;
  	while(j<=s.size())
  	{
  		R*=10;
  		R%=3;
  		R+=(ll)(s[j]-'0');
  		R%=3;
  		r*=10;
  		r%=673;
  		r+=(ll)(s[j]-'0');
  		r%=673;
  		if(a[j].find(r)!=a[j].end())
  			break;
  		a[j].insert(r);
  		if(r==0&&R==0)
  			p++;
  		j++;
  	}
  	ans+=p*(p+1)/2;
  	i++;
  }
  deb(ans);
}


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

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>
void main()
{
	int N, ct=0;
	scanf("%d", &N);
	int len = strlen(itoa(N)), i, j;
	char *num;
	num = itoa(N);
	int n=0,k;
	for (i = 0; i < N - 4; i++,n=0)
		for (j = i,k=0; j < N; j++,k++)
		{
			n += pow(10, k)*atoi(num[i]);
			if (n % 2019 == 0)
				ct++;
		}
}

Compiler output:
main.c: In function 'main':
main.c:9:26: error: implicit declaration of function 'itoa' [-Wimplicit-function-declaration]
    9 |         int len = strlen(itoa(N)), i, j;
      |                          ^~~~
main.c:9:26: error: passing argument 1 of 'strlen' makes pointer from integer without a cast [-Wint-conversion]
    9 |         int len = strlen(itoa(N)), i, j;
      |                          ^~~~~~~
      |                          |
      |                          int
In file included from main.c:2:
/usr/include/string.h:407:35: note: expected 'const char *' but argument is of type 'int'
  407 | extern size_t strlen (const char *__s)
      |                       ~~~~~~~~~~~~^~~
main.c:11:13: error: assignment to 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
   11 |         num = itoa(N);
      |             ^
main.c:16:49: error: passing argument 1 of 'atoi' makes pointer from integer without a cast [-Wint-conversion]
   16 |                         n += pow(10, k)*atoi(num[i]);
      |                                              ~~~^~~
      |                                                 |
      |                                                 char
In file included from main.c:3:
/usr/include/stdlib.h:105:30: note: expected 'const char *' but argument is of type 'char'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
Language: C

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

typedef long long ll;
typedef vector<long long> vecll;
typedef vector<string> vecstr;

#define rep0(i, n) for(ll i=0; i<(ll)(n); i++)
#define rep1(i, n) for(ll i=1; i<=(ll)(n); i++)
#define rep(i, a, b) for(ll i=(ll)a; i<=(ll)(b); i++)
#define rep0r(i, n) for(ll i=(ll)(n)-1; i>=0; i--)
#define rep1r(i, n) for(ll i=(ll)(n); i>0; i--)
#define repr(i, a, b) for(ll i=(ll)b; i>=(ll)(a); i--)
#define gcd(a, b) __gcd(a, b)
#define lcm(a, b) a * b / __gcd(a, b)
#define len(x) x.size()
#define Sort(x) sort(x.begin(), x.end())
#define rSort(x) sort(x.begin(), x.end(), greater<ll>())

const ll mod_const = 1000000007;

ll modpow(ll a, ll n, ll m) {
    ll result = 1;
    while(n > 0) {
        if(n&1) {
            result = result * a % m;
        }

    a = a * a % m;
    n >>= 1;
    }

    return result;
}

ll modinv(ll a, ll n) {
    if(a <= 1) {
        return 1;
    } else {
        return  n - modinv(n%a, n) * (n/a) % n;
    }
}

ll comb(ll n, ll r, ll m = mod_const) {
    vecll fac = {1, 1};
    vecll inv ={1, 1};
    vecll facinv = {1 , 1};

    rep(i, 2, n) {
        fac.push_back(fac[i-1] * i % m);
        inv.push_back(modinv(i, m));
        facinv.push_back(facinv[i-1] * inv[i] % m);
    }

    if (n<r || n<0 || r<0) {
        return 0;
    } else {
        return fac[n] * (facinv[r] * facinv[n-r] % m) % m;
    }
}
void solve() {
    string s, sub_s;
    cin >> s;

    ll cnt = 0;
    rep0(i, len(s)) {
        rep(j, 4, len(s)-i) {
            sub_s = s.substr(i, j);
            ll n = stoll(sub_s);
            if(n % 2019 == 0) {
                cnt++;
                j += 4;
            }
        }
    }

    cout << cnt << endl;
}

signed main() {
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    solve();
    return 0;
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        //切り出しする文字列
        String S = sc.next();
        String[] work = S.split("");
        String sum = "";
        int ans = 0;
        for (int j=0; j < work.length; j++){
            sum = work[j];
            for(int k = j + 1; k < work.length;
                if(Integer.parseInt(sum)%2019  k++){
                    sum+= work[k];== 0){
                    ans++;
                }
            }
        }
        System.out.println(ans);
    }
}

Compiler output:
Main.java:14: error: illegal start of expression
                if(Integer.parseInt(sum)%2019  k++){
                ^
Main.java:14: error: ')' expected
                if(Integer.parseInt(sum)%2019  k++){
                                             ^
Main.java:14: error: ';' expected
                if(Integer.parseInt(sum)%2019  k++){
                                                  ^
Main.java:15: error: illegal start of expression
                    sum+= work[k];== 0){
                                  ^
Main.java:15: error: ';' expected
                    sum+= work[k];== 0){
                                      ^
5 errors
Language: C

#include <iostream>
#include <map>
#include <vector>
#include <string>
#include <math.h>
#include <algorithm>
#include <functional>
#define int long long
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;
constexpr int MOD = 1000000007;
constexpr int INF = numeric_limits<int>::max() / 2;
typedef pair<int, int> P;
using Graph = vector<vector<int>>;



signed main() {
	cin.tie(nullptr);
	ios::sync_with_stdio(false);

	int P, N;
	string S;
	cin >>S;
	N = S.size();
	P = 2019;
	int ans = 0;
	if (P == 2) {
		rep(i, N) {
			if (S[i] == '0' || S[i] == '2' || S[i] == '4' || S[i] == '6' || S[i] == '8') ans += i + 1;
		}
	}
	else if (P == 5) {
		rep(i, N) {
			if (S[i] == '0' || S[i] == '5') ans += i + 1;
		}
	}
	else {
		map<int, int> mp{};
		int num = 0, kai = 1;
		mp[0]++;
		for (int i = N - 1; i >= 0; i--) {
			num += (S[i] - '0') * kai;
			num %= P;
			mp[num]++;
			kai = (kai * 10) % P;
		}
		for (auto p : mp) {
			int n = p.second;
			ans += n * (n - 1) / 2;
		}
	}
	cout << ans << endl;
}

Compiler output:
main.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

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

int main() {
  string S;
  cin >>S;
  int a=0;
  for(long i=0;i < S.size();i++){
    for(long j=0;i <= j && j < S.size();j++){
      string sss = S.substr(i,j-i+1);
      int num;
      num = atoi(sss);
      if(num%2019 == 0){
        a++;
      }
    }
  }
  cout << a << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:18: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   12 |       num = atoi(sss);
      |                  ^~~
      |                  |
      |                  std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:1:
/usr/include/stdlib.h:105:30: note:   initializing argument 1 of 'int atoi(const char*)'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
Language: C

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> Pii;

string S;
vector<int> aaa;

int main() {
    cin >> S;
    int N = S.length();

    for (int i = 5; i <= 49; i++) {
        aaa.push_back(2019 * i);
    }
    
    ll ans = 0;
    for (int i = 0; i < N-4; i++) {
        string str = S.substr(i, 5);
        int stint = stoi(str);
        for (int j = 0; j < aaa.size(); j++) {
            if (stint == aaa[j]) {
                ans++;
                break;
            }
        }
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;
  int cnt=0;
  int t;
  for (int i=0;i<s.size()-3;i++){
    for (int j=4;j<=s.size()-i;j++){
      t=(int)(s.substr(i,j));
      if (t%2019==0){
        cnt++;
      }
    }
  }
  cout << cnt << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: invalid cast from type 'std::__cxx11::basic_string<char>' to type 'int'
   10 |       t=(int)(s.substr(i,j));
      |         ^~~~~~~~~~~~~~~~~~~~
Language: C

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

namespace A
{

    class Program
    {
        public static void Main(string[] args)
        {
            
            var s = ReadLine();
            var re = 0;
            int c = 0;

            for (int j = 0; j < s.Length; j++) {
                c = s.Length - j -1;
                if(c <= 0) { continue; }

                for(int i = 1; i <= c; i++) {
                    var a = s.Substring(j, i);

                    if (long.Parse(a) % 2019 == 0) {
                        re++;
                    }
                }
            }

            Console.WriteLine((re != 0) ? re + 1 : 0);
            ReadLine();
        }

        //最大公約数
        static int gcd(int a, int b)
        {
            if (a > b) {
                return gcd(b, a);
            }

            while (b != 0) {
                var remainder = a % b;
                a = b;
                b = remainder;
            }

            return a;
        }

        //最小公倍数
        static int lcm(int a, int b) => a * b / gcd(a, b);

        /// <summary>
        /// コンビネーション
        /// </summary>
        static int nCm(int n, int m)
        {
            if (m == 0) return 1;
            if (n == 0) return 0;
            return n * nCm(n - 1, m - 1) / m;
        }

        public static string ReadLine() => Console.ReadLine();
        public static int ReadLineInt() => int.Parse(Console.ReadLine());
        public static string[] ReadLineStringSplit(char a = ' ') => ReadLine().Split(a).ToArray();
        public static int[] ReadLineIntSpilit(char a = ' ') => ReadLine().Split(a).Select(x => int.Parse(x)).ToArray();
        public static long[] ReadLineLongSpilit(char a = ' ') => ReadLine().Split(a).Select(x => long.Parse(x)).ToArray();
        static string[] GetAplhaLowerArray() => new string[] { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z" };
        static string[] GetAplhaUpperArray() => new string[] { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" };
    }
}

Compiler output:
main.c:1:1: error: unknown type name 'using'
    1 | using System;
      | ^~~~~
main.c:2:1: error: unknown type name 'using'
    2 | using System.Collections.Generic;
      | ^~~~~
main.c:2:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    2 | using System.Collections.Generic;
      |             ^
main.c:3:1: error: unknown type name 'using'
    3 | using System.Linq;
      | ^~~~~
main.c:3:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    3 | using System.Linq;
      |             ^
main.c:5:1: error: unknown type name 'namespace'
    5 | namespace A
      | ^~~~~~~~~
main.c:6:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    6 | {
      | ^
Language: Java

import java.math.BigInteger;
import java.util.Scanner;

public class main {

	static Scanner sc;
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		String S;
		S = sc.next();
		
		BigInteger the_number = BigInteger.valueOf(2019);
		BigInteger canditate;
		
		int answer = 0;
		for (int i = 0; i < S.length(); ++i) {
			for (int j = i+2; j <= S.length(); ++j) {
				canditate = new BigInteger(S.substring(i, j));
				if(canditate.mod(the_number).equals(BigInteger.ZERO)) {
					answer++;
				}
			}
		}
		
		System.out.println(answer);
	}

}

Compiler output:
Main.java:4: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: C

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
//template<class itr> void cins(itr first, itr last){ for(auto i = first; i != last; i++){ cin >> (*i); } }
/*
string S_str[H];
cins(S_str, S_str + H);
S_str[i][j];
*/
inline int at(ll x, int k){ return (x >> k) & 1; }
#define rep(i, n) for(ll i = 0; i < n; i++)

#define rrep(i,a,b) for(int i=a;i>=b;i--)

int N; string S;
int cnt[2019];
//---------------------------------------------------------------------------------------------------
int main() {
	cin >> S;
	ll ans = 0;
  ll N = S.length();


		int cu = 0; int dg = 1;

		rrep(i, N - 1, 0) {
			cu = (cu + dg * (S[i] - '0')) % 2019;
			dg = (dg * 10) % 2019;

			ans += cnt[cu];
			if (cu == 0) ans++;

			cnt[cu]++;
		}


	cout << ans << endl;
}

/*
int main(){
  string s;
  cin >> s;
  int n = s.length();

  ll num[n];
  ll cnt[2019]={0};
  ll ans=0;
  rep(i,n){
    num[i]=  stoll(s.substr(i));


    ans += cnt[num[i]%2019];
    cnt[num[i]%2019]++;
  }
  ans += cnt[0];


  cout <<ans<<endl;


}
*/


Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define rep(i, a, b) for(ll i = a; i < b; i++)
const int mod = 1e9 + 7;
int main()
{

  ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
  string s;
  cin >> s;
  ll n=s.size();
  string f;
  ll c=0;
  if(s,size()<=3)cout<<"0\n";
  else{
  rep(i,0,n-3)
  {
      rep(j,1,n){
          f=s.substr(i,j);
          ll a=stoll(f);
          if(a%2019==0){c++;}
          if(i+j==n)break;
      }
  }
  cout<<c;}
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:16:12: error: no matching function for call to 'size()'
   16 |   if(s,size()<=3)cout<<"0\n";
      |        ~~~~^~
In file included from /usr/include/c++/14/string:53,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/range_access.h:262:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
  262 |     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
      |     ^~~~
/usr/include/c++/14/bits/range_access.h:262:5: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/bits/range_access.h:272:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
  272 |     size(const _Tp (&)[_Nm]) noexcept
      |     ^~~~
/usr/include/c++/14/bits/range_access.h:272:5: note:   candidate expects 1 argument, 0 provided
Language: C

#pragma GCC optimize("Ofast")

//インクルード
#include<algorithm>//sort,二分探索,など
#include<bitset>//固定長bit集合
#include<cmath>//pow,logなど
#include<complex>//複素数
#include<deque>//両端アクセスのキュー
#include<functional>//sortのgreater
#include<iomanip>//setprecision(浮動小数点の出力の誤差)
#include<iostream>//入出力
#include<map>//map(辞書)
#include<numeric>//iota(整数列の生成),gcdとlcm(c++17)
#include<queue>//キュー
#include<set>//集合
#include<stack>//スタック
#include<string>//文字列
#include<unordered_map>//イテレータあるけど順序保持しないmap
#include<unordered_set>//イテレータあるけど順序保持しないset
#include<utility>//pair
#include<vector>//可変長配列

using namespace std;
using Graph = vector<vector<int>>; // グラフ型
typedef long long ll;

//マクロ
#define REP(i,n) for(ll i=0;i<(ll)(n);i++)
#define REPD(i,n) for(ll i=(ll)(n)-1;i>=0;i--)
#define FOR(i,a,b) for(ll i=(a);i<=(b);i++)
#define FORD(i,a,b) for(ll i=(a);i>=(b);i--)
#define ALL(x) (x).begin(),(x).end() //sortなどの引数を省略したい
#define SIZE(x) ((ll)(x).size()) //sizeをsize_tからllに直しておく
#define MAX(x) *max_element(ALL(x))
#define INF 1000000000000 //10^12
#define MOD 1000000007 //10^9+7
#define PB push_back
#define MP make_pair
#define F first
#define S second
#define MAXR 100000 //10^5:最大のrange(素数列挙などで使用)

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

int main() {
  // 高速化
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);


    string s;
    cin >> s;
    vector<ll> a(2019, 0);
    ll  dg = 1;
    ll  res = 0;

    REP(i, s.size()){
        res = (res + (s[s.size()-1-i]-'0') * dg) % 2019;
        dg = (dg * 10) % 2019;
        a[res]++;
    }

    ll ans = 0;
    REP(i, 2019){
        if(i==0){
            ans+= ((a[0]+1) * a[0] /2);
        }else{
            ans += a[i] * (a[i]-1) /2;
        }
    }

    cout <<  ans << "\n"; 

    return 0;



}


Compiler output:
main.c:4:9: fatal error: algorithm: No such file or directory
    4 | #include<algorithm>//sort,二分探索,など
      |         ^~~~~~~~~~~
compilation terminated.
Language: C

//url:
//problem name:

#include <bits/stdc++.h>
#define REP(i,n) for (int i = 0; i < (n); ++i)
template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b;return true;}return false;}
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b;return true;}return false;}
using namespace std;
using ll = long long;
using P = pair<int,int>;
using Pl = pair<long long,long long>;
using veci = vector<int>;
using vecl = vector<long>;
using vecveci = vector<vector<int>>;
using vecvecl = vector<vector<long long>>;

vecl cnt(2019,0);

int main() {
    string S;
    cin >> S;
    ll ans = 0;
    int ex = 1;
    int num = 0;
    for(int i = S.size()-1; i >= 0; i--) {
            num = (num + ex * (S[i] - '0')) % 2019;
            ex = (ex * 10) % 2019;

            cnt[num]++;
    }
    for(auto x:cnt) ans += x*(x-1)/2;
    ans += cnt[0];
    cout << ans << endl;
}

Compiler output:
main.c:4:10: fatal error: bits/stdc++.h: No such file or directory
    4 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C

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

int main(){
    long long int s;
    cin >> s;

    int s_keta =0;
    int copy = s;
    while(copy != 0){
        copy /= 10;
        s_keta++;
    }

    int ans = 0;
    set<int> kouho{2019,
4038,
6057,
8076,
10095,
12114,
14133,
16152,
18171,
20190,
22209,
24228,
26247,
28266,
30285,
32304,
34323,
36342,
38361,
40380,
42399,
44418,
46437,
48456,
50475,
52494,
54513,
56532,
58551,
60570,
62589,
64608,
66627,
68646,
70665,
72684,
74703,
76722,
78741,
80760,
82779,
84798,
86817,
88836,
90855,
92874,
94893,
96912,
98931,
100950,
102969,
104988,
107007,
109026,
111045,
113064,
115083,
117102,
119121,
121140,
123159,
125178,
127197,
129216,
131235,
133254,
135273,
137292,
139311,
141330,
143349,
145368,
147387,
149406,
151425,
153444,
155463,
157482,
159501,
161520,
163539,
165558,
167577,
169596,
171615,
173634,
175653,
177672,
179691,
181710,
183729,
185748,
187767,
189786,
191805,
193824,
195843,
197862,
199881};
    
    int keta_5;
    int keta_6;

    for(int i=0; i+1 <= s_keta; i++){
        long long int a = pow(10,i+5);
        long long int b = pow(10,i);
        //cout << a << ' ' << b << endl;
        keta_5 = (s%a) / b;
        //cout << keta_5 << endl;
        if(kouho.count(keta_5) != 0){
            ans++;
        }
    }
    for(int i=0; i+2 <= s_keta; i++){
        long long int a = pow(10,i+6);
        long long int b = pow(10,i);
        //cout << a << ' ' << b << endl;
        keta_6 = (s%a) / b;
        //cout << keta_6 << endl;
        if(kouho.count(keta_6) != 0){
            ans++;
        }
    }
    cout << ans << endl;
}

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

s = gets.chomp
n = s.size

if s.to_i < 2019
  puts 0
  exit
end

ans = 0

(0..n-1).each do |i|
  (i..n-1).each do |j|
    ans += 1 if s[i..j].to_i % 2019 == 0
  end
end
puts ans

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | s = gets.chomp
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 's' [-Wimplicit-int]
main.c:1:5: error: 'gets' undeclared here (not in a function)
    1 | s = gets.chomp
      |     ^~~~
main.c:2:1: error: expected ',' or ';' before 'n'
    2 | n = s.size
      | ^
main.c:11:2: error: too many decimal points in number
   11 | (0..n-1).each do |i|
      |  ^~~~
Language: C

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

int main(){
    string s;
    cin >> s;
    int right = 1;
    map<int,int> map;
    for (int left = 0; left < s.size(); left++)
    {
        for (int right = left + 1; right < s.size() + 1; right++)
        {
            cout << left << " " << right << " " << stoull(s.substr(left,right - left)) << endl;
            if(stoull(s.substr(left,right - left))%2019 == 0) map[left] = right;
        }
    }
    cout << map.size() << endl;
    return 0;
}

Compiler output:
main.c:1:9: fatal error: bits/stdc++.h: No such file or directory
    1 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.io.IOException;
import java.io.InputStream;
import java.util.*;

public class Main {
    public  static void main(String[] args) {
        FastScanner sc = new FastScanner();
         String text = sc.next();
         int a;
         int count = 0;
         for(int i = 0; i < text.length() - 4; i++) {
             for(int j = i+3; j < text.length(); j++) {
                 a = Integer.parseInt(text.substring(i, j));
                 try {
                     if (a % 2019 == 0) {
                         count++;
                     }
                 } catch (IOException e) {

                 }
             }
         }
         System.out.print(count);
    }
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

}

Compiler output:
Main.java:18: error: exception IOException is never thrown in body of corresponding try statement
                 } catch (IOException e) {
                   ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){string S;cin>>S;int b=S.size();int x=0;
           for(int i=0;i<b-3;i++)string p=S.substr(i,b-i);while(p<2019){if(p%2019==0)x++;p/10;}
           cout<<x<<endl;}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:65: error: 'p' was not declared in this scope
    4 |            for(int i=0;i<b-3;i++)string p=S.substr(i,b-i);while(p<2019){if(p%2019==0)x++;p/10;}
      |                                                                 ^
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 main(){
    string inp;
    ll ans = 0; 
    cin >> inp;

    istringstream ss ;

    ll tmp ;
    ss = istringstream(inp);
    ss >> tmp;
    if(tmp<2019){
        cout << 0 << endl;
        return;
    }

    for(int i = 0; i <= inp.size() - 4; i ++){
        ss = istringstream(inp.substr(i));           
        ll a  ;
        ss >> a;

        while(a>=2019){
            if(a%2019 == 0){
                ans++;
            }
            a /= 10;
        }
        
    }   

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




Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   18 |         return;
      |         ^~~~~~
Language: C

//Nihal Mittal - nihal_47
//Strike First , Strike Hard , No Mercy !!

/**⠀⠀⠀⠀⠀⠀⣀⣤⣤⣄⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣦⣀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣰⣿⣿⣿⣿⠿⠿⣿⣿⣿⣿⣿⣿⣿⣧⢀⠀⠀⠀⠀
⠀⠀⠀⣿⣿⣿⠋⠀⠀⠀⠀⠀⠙⠀⠙⣿⣿⣿⣷⢳⢀⠀⠀⠀
⠀⠀⣠⣿⣿⣿⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⣿⢀
⠀⠀⣸⣿⣿⣿⠸⠀⠀⠀⠒⠒⠒⠐⠀⠀⢿⣿⣿⣿⣿⣿⠀⠀
⠀⣴⣿⣿⣿⡿⠀⠒⣋⣙⡒⢰⠀⠤⣖⠒⢾⣿⣿⣿⣿⣧⠀⠀
⢺⣿⣿⣿⣿⢀⠀⠀⠉⠉⠉⠸⠀⡇⠉⠉⠀⢿⣿⣿⣿⣄⠀⠀
⠀⠙⣿⣿⣧⢻⠀⠀⠀⠀⠀⠠⠀⠰⠀⠀⠀⣸⠸⣿⣿⠿⠰⠀
⠀⠀⠀⠹⣿⣿⣿⣷⠀⡠⠙⣲⣔⣅⢡⣰⣷⣿⣿⣿⣧⠀⠀⠀
⠀⠀⠀⣼⣿⣿⣿⣿⠀⡿⠭⠭⠭⠭⢿⠀⣿⢻⣿⣿⠃⠀⠀⠀
⠀⠀⠀⠙⠛⣿⢻⠹⣿⠐⠙⠛⠟⠉⢀⣴⡟⢿⣿⡏⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⡟⠀⠀⠻⣦⣤⣶⠾⠋⠀⠀⠁⡦⢄⢀⠀⠀⠀
⠀⠀⠀⠀⡠⠁⡇⠑⢄⠀⠀⠀⠀⠀⠀⠔⠀⠀⠁⠀⠀⠀⠉⠁
⠀⠔⠊⠁⠀⠀⣇⠀⠀⠀⠑⡤⠤⢎⠁⠀⠀⡘⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢢⠠⠀⡠⢆⠀⠀⡠⠙⢄⠀⡸⠀
**/
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define mk make_pair
#define pb push_back
#define in insert
#define se second
#define fi first
#define mod 1000000007
#define watch(x) cout << (#x) << " is " << (x) << "\n"
#define all(v) (v).begin(),(v).end()
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(0);
#define pii pair<ll,ll>
#define vi(x) vector<x>
#define maxn 100005
#define ordered_set tree<ll, null_type,less<ll>, rb_tree_tag,tree_order_statistics_node_update> 
using namespace std;
using namespace __gnu_pbds;

signed main()
{
    fast;
 
    string s;
    cin>>s;
    ll n = s.length(),di=1,di1=1,ans=0;
    reverse(all(s));
    ll i,j,sum=0;
    map<ll,ll> ma;
    ll a[n+2];
    for(i=0;i<n;i++)
    {
    	ll da = s[i] - '0';
    	a[i] = (da%2019 * di%2019)%2019;
    	di = (di * 10LL)%2019;
    }
    for(i=0;i<n;i++)
    {
    	sum += a[i];
    	ma[((sum%2019) + 2019 )%2019]++;
    }
    for(i=0;i<2019;i++)
    {
    	if(ma[i]>1)
    	{
    		ans += (ma[i] * (ma[i]-1)) / 2;
    	}
    }
    ans += ma[0];
    cout<<ans;




}

Compiler output:
main.c:21:9: fatal error: bits/stdc++.h: No such file or directory
   21 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){string S;cin>>S;int b=S.size();int x=0;
           for(int i=0;i<b-3;i++)string p=S.substr(i,b-i)while(p<2019){if(p%2019==0)x++;p/10;}
           cout<<x<<endl;}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:58: error: expected ',' or ';' before 'while'
    4 |            for(int i=0;i<b-3;i++)string p=S.substr(i,b-i)while(p<2019){if(p%2019==0)x++;p/10;}
      |                                                          ^~~~~
Language: C++

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

int main() {
  string s;
  cin >> s;
  int count = 0;
  for(int j = 0; j < s.size(); j++) {
    for(int i = 0; i <= j; i++) {
      if((int)s.at(i).at(j) % 2019 == 0)count++;
    }
  }
  cout << count << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:23: error: request for member 'at' in 's.std::__cxx11::basic_string<char>::at(((std::__cxx11::basic_string<char>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
   10 |       if((int)s.at(i).at(j) % 2019 == 0)count++;
      |                       ^~
Language: C++

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

int main(void){

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

    int n;
    string str;

    cin >> str;

    int ans = 0;


    int bai = 2019;

    string str2;

    for(int i = 1;bai>stoi(str);i++){
        bai *= i;

        str2 = to_string(bai);

        
        if(strstr(str.c_str(),str2.c_str())!=NULL){
            ans++;
        }

    }

    cout << ans << endl;





    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:12: error: 'strstr' was not declared in this scope
   30 |         if(strstr(str.c_str(),str2.c_str())!=NULL){
      |            ^~~~~~
a.cc:5:1: note: 'strstr' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include <set>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

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

#define int long long
#define MOD 1000000007

#define rep(i, n) for (int i = 0; i < (n); i++)
#define rep1(i, n) for (int i = 1; i < (n); i++)
#define rrep(i, n) for (int i = (n)-1; i >= 0; i--)
#define all(i) (i).begin(), (i).end()
#define rall(i) (i).begin(), (i).end(), greater<int>()
#define elif else if
#define eb emplace_back
#define pb push_back
#define mp make_pair
#define fst first
#define sec second
template <typename T>
void print(T x)
{
    std::cout << x << '\n';
}
typedef long long ll;

int t_index[200000][200000];
string s;
int ans = 0;

int cToi(char x)
{
    return x - '0';
}

int fun(int a, int b)
{

    if (a == b)
    {
        return cToi(s[a]);
    }
    if (t_index[a][b] != 0)
    {

        return t_index[a][b];
    }
    else
    {
        int temp = fun(a, b - 1) * 10 + cToi(s[b]);
        t_index[a][b] = temp;
        if (temp % 2019 == 0)
        {

            ans++;
        }
        return temp;
    }
}

signed main()
{
    cin >> s;

    int len = s.size();

    if (len < 4)
    {
        cout << "0" << endl;
        return 0;
    }

    for (int i = 0; i < len; i++)
    {
        fun(i, len - 1);
    }

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


Compiler output:
/tmp/cco16VoQ.o: in function `fun(long long, long long)':
a.cc:(.text+0x39): relocation truncated to fit: R_X86_64_PC32 against symbol `s[abi:cxx11]' defined in .bss section in /tmp/cco16VoQ.o
a.cc:(.text+0xdf): relocation truncated to fit: R_X86_64_PC32 against symbol `s[abi:cxx11]' defined in .bss section in /tmp/cco16VoQ.o
a.cc:(.text+0x163): relocation truncated to fit: R_X86_64_PC32 against symbol `ans' defined in .bss section in /tmp/cco16VoQ.o
a.cc:(.text+0x16e): relocation truncated to fit: R_X86_64_PC32 against symbol `ans' defined in .bss section in /tmp/cco16VoQ.o
/tmp/cco16VoQ.o: in function `main':
a.cc:(.text+0x187): relocation truncated to fit: R_X86_64_PC32 against symbol `s[abi:cxx11]' defined in .bss section in /tmp/cco16VoQ.o
a.cc:(.text+0x1a0): relocation truncated to fit: R_X86_64_PC32 against symbol `s[abi:cxx11]' defined in .bss section in /tmp/cco16VoQ.o
a.cc:(.text+0x21c): relocation truncated to fit: R_X86_64_PC32 against symbol `ans' defined in .bss section in /tmp/cco16VoQ.o
/tmp/cco16VoQ.o: in function `__static_initialization_and_destruction_0()':
a.cc:(.text+0x252): relocation truncated to fit: R_X86_64_PC32 against symbol `s[abi:cxx11]' defined in .bss section in /tmp/cco16VoQ.o
a.cc:(.text+0x26b): relocation truncated to fit: R_X86_64_PC32 against symbol `s[abi:cxx11]' defined in .bss section in /tmp/cco16VoQ.o
collect2: error: ld returned 1 exit status