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

#include<bits/stdc++.h>
using namespace std;
int64_t f(int64_t x,int64_t y){
if(y==0)
  return 1;
  else if(y%2==0)
    return (f(x,y/2)*f(x,y/2))%1000000007;
  else
    return (y*f(x,y/2)*f(x,y/2))%1000000007;
}
int64_t g(int64_t x){
if(x==0)
  return 1;
  else{
  return (x*g(x-1))%1000000007;
  
  }

}
int main(){
set<int>S1; S1.insert(-1);
  set<int>S2;S2.insert(-1);
  set<int>S3;S3.insert(-1);
  int N;
  cin>>N;
  for(int i=0;i<N;i++){
  int a;
    cin>>a;
    if(!S1.count(a))
      S1.insert(a);
    else if(!S2.count(a))
      S2.insett(a);
    else
      S3.insert(a);
    }
  int A=0;
  for(auto p:S1){
  if(A<p+1)
    A=p+1;
  }int B=0;
  for(auto p:S2){
  if(B<p+1)
    B=p+1;
  }int C=0;
  for(auto p:S3){
  if(C<p+1)
    C=p+1;
  }
  int64_t ans1=(g(A+B+C)*f(g(A),1000000005))%100000007;
  int64_t ans2=(f(g(B),1000000005)*f(g(C),1000000005))%1000000007;
  ans2=(ans2*ans1)%1000000007;
  set<int>s;
  s.insert(A);s.insert(B);s.insert(C);
  int n=s.size();
  if(n==1)
    cout<<ans2<<endl;
  else if(n==2)
    cout<<(3*ans2)%1000000007<<endl;
  else
    cout<<(6*ans2)%1000000007<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:10: error: 'class std::set<int>' has no member named 'insett'; did you mean 'insert'?
   32 |       S2.insett(a);
      |          ^~~~~~
      |          insert
Language: C++

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

const ll MOD = 1000000007;
ll dp[101010];

int main()
{
    cin >> n;
    
    ll res = 0;
    rep(i, n)
    {
        int a;
        cin >> a;
        if(a != 0 && dp[a - 1] <= dp[a])
        {
            res = 0;
            break;
        }
        res *= 3 - dp[a];
        res %= MOD;
        dp[a]++;
    }
    cout << res << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: 'n' was not declared in this scope; did you mean 'yn'?
   12 |     cin >> n;
      |            ^
      |            yn
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
int mod = 1e9+7;

signed main(){
    int N; cin >> N;
    vector<int> a(N), sum(N, 0);
    for(int i = 0; i < N; i++) cin >> a[i];
    int ans = 3;
    sum[0] = 1;
    if(a[0] != 0){
      cout << 0 << endl;
      return;
    }
    for(int i = 1; i < N; i++){
        if(a[i] != 0) ans *= (sum[a[i] - 1] - sum[a[i]]);
        if(a[i] == 0) ans *= (3 - sum[a[i]]);
        ans %= mod;
        sum[a[i]]++;
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:7: error: return-statement with no value, in function returning 'int' [-fpermissive]
   14 |       return;
      |       ^~~~~~
Language: C++

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

int main() {
    Int n;
    cin >> n;
    Int v[3] = {0};
    Int ans = 1;
    rep(i, n) {
        Int a;
        cin >> a;
        int c = 0;
        int index = -1;
        rep(j, 3) {
            if (v[j] == a) {
                c++;
                index = j;
            }
        }
        if (c == 0) {
            puts("0");
            return 0;
        }
        ans *= c;
        ans %= MOD;
        v[index]++;
    }
    PUTS(ans)
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:16: error: 'MOD' was not declared in this scope
   27 |         ans %= MOD;
      |                ^~~
a.cc:30:5: error: 'PUTS' was not declared in this scope
   30 |     PUTS(ans)
      |     ^~~~
Language: C++

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

ll cn[100010];

int main(){
    ll n;cin>>n;
    ll an=1;
    rep(i,0,n){
        ll a;
        cin>>a;
        if(a!=0){
            an=(an*(cn[a-1]-cn[a]))%1000000007;
        }
        cn[a]++;
    }
    if(cn[0]==1){
        an=(an*3)%1000000007;
    }
    else an=(an*6)%1000000007;
    cout<<an<<endl;
}







Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | v#include <bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'v' does not name a type
    1 | v#include <bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:9:10: error: 'cin' was not declared in this scope; did you mean 'cn'?
    9 |     ll n;cin>>n;
      |          ^~~
      |          cn
a.cc:23:5: error: 'cout' was not declared in this scope
   23 |     cout<<an<<endl;
      |     ^~~~
a.cc:23:15: error: 'endl' was not declared in this scope
   23 |     cout<<an<<endl;
      |               ^~~~
Language: C++


#include "pch.h"
#include <iostream>
#include <fstream>
#include <map>
#include <set>
#include <vector>
#include <algorithm>
using namespace std;

//typedef long long LL;
typedef pair<int, int> pii;

#define MAXL 100002

int N;
int p[MAXL];

int main()
{
	cin >> N;

	int ans;

	for (int n = 1; n <= N; n++) {
		cin >> p[n];
	}

	ans = 3 * pow(2, (N - p[N] - 1));

	cout << ans << endl;
}

Compiler output:
a.cc:2:10: fatal error: pch.h: No such file or directory
    2 | #include "pch.h"
      |          ^~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <fstream>
#include <map>
#include <set>
#include <vector>
#include <algorithm>
using namespace std;

//typedef long long LL;
typedef pair<int, int> pii;

#define MAXL 100002

int N;
int p[MAXL];

int main()
{
	cin >> N;

	int ans;

	for (int n = 1; n <= N; n++) {
		cin >> p[n];
	}

	ans = 3 * pow(2, (N - p[N] - 1));

	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:19: error: 'pow' was not declared in this scope
   27 |         ans = 3 * pow(2, (N - p[N] - 1));
      |                   ^~~
Language: C++

#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
#define ll long long
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define FOR(i,a,b) for(ll i=(a);i<(b);i++)
#define FORR(i,a,b)for(ll i=(a);i<=(b);i++)
#define repR(i,n) for(ll i=n;i>=0;i--)
#define all(v)(v).begin(),(v).end()
#define rall(v)(v).rbegin(),(v).rend()
#define F first
#define S second
#define pb push_back
#define pu push
#define COUT(x) cout<<(x)<<endl
#define PQ priority_queue<ll>
#define PQR priority_queue<ll,vector<ll>,greater<ll>>
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl
#define mp make_pair
#define maxs(x,y) (x = max(x,y))
#define mins(x,y) (x = min(x,y))
#define sz(x) (int)(x).size()
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const ll MOD = 1000000007LL;
const ll INF = 1LL << 60;
using vll = vector<ll>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vvll = vector<vll>;
using vstr = vector<string>;
using pll = pair<ll, ll>;
using vc = vector<char>;
using vvc = vector<vc>;
ll dx[4]={0,1,0,-1};
ll dy[4]={1,0,-1,0};
int main(){
  ll n;
  cin>>n;
  vll a(n);
  rep(i,n)cin>>a[i];
  vll c(n+2);
  v[0]=3;
  ll ans=1;
  rep(i,n){
    ans*=c[a[i]];
    ans%=MOD;
    c[a[i]]--;
    c[a[i]+1]++;
  }
  COUT(ans);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:48:3: error: 'v' was not declared in this scope
   48 |   v[0]=3;
      |   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
	cin >> N;
	for (int i = 1; i <= N; i++) cin >> A[i];
 
	for (int i = 1; i <= N; i++) {
		long long cnt = 0, id = -1;
		if (A[i] == C[0]) { cnt++; id = 0; }
		if (A[i] == C[1]) { cnt++; id = 1; }
		if (A[i] == C[2]) { cnt++; id = 2; }
		if (id == -1) {
			cout << "0" << endl;
			return 0;
		}
		sum *= cnt; C[id]++;
		sum %= 1000000007;
	}
	cout << sum << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:16: error: 'N' was not declared in this scope
    4 |         cin >> N;
      |                ^
a.cc:5:45: error: 'A' was not declared in this scope
    5 |         for (int i = 1; i <= N; i++) cin >> A[i];
      |                                             ^
a.cc:9:21: error: 'A' was not declared in this scope
    9 |                 if (A[i] == C[0]) { cnt++; id = 0; }
      |                     ^
a.cc:9:29: error: 'C' was not declared in this scope
    9 |                 if (A[i] == C[0]) { cnt++; id = 0; }
      |                             ^
a.cc:10:21: error: 'A' was not declared in this scope
   10 |                 if (A[i] == C[1]) { cnt++; id = 1; }
      |                     ^
a.cc:10:29: error: 'C' was not declared in this scope
   10 |                 if (A[i] == C[1]) { cnt++; id = 1; }
      |                             ^
a.cc:11:21: error: 'A' was not declared in this scope
   11 |                 if (A[i] == C[2]) { cnt++; id = 2; }
      |                     ^
a.cc:11:29: error: 'C' was not declared in this scope
   11 |                 if (A[i] == C[2]) { cnt++; id = 2; }
      |                             ^
a.cc:16:17: error: 'sum' was not declared in this scope
   16 |                 sum *= cnt; C[id]++;
      |                 ^~~
a.cc:16:29: error: 'C' was not declared in this scope
   16 |                 sum *= cnt; C[id]++;
      |                             ^
a.cc:19:17: error: 'sum' was not declared in this scope
   19 |         cout << sum << endl;
      |                 ^~~
Language: C++

#include <bits/stdc++.h>
#define lli long long int
#define pb push_back
#define mod 1000000007
#pragma GCC optimize ("-O2")
#define mod2 998244353
#define MAXN 1000000000
#define v32 vector<int>
#define v64 vector<lli>
#define v1024 vector <vector <int>>
#define v4096 vector <vector <lli>>
#define vt vector
#define f(x, y, z) for (lli x = y; x < z; x++)
#define fd(x, y, z) for (lli x = y; x > z; x--)
#define lb lower_bound
#define ld long double
#define m64 map<lli,lli>
#define m32 map<int,int>
#define m64it map<lli,lli>::iterator
#define m32it map<int,int>::iterator
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ist insert
#define endl "\n"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ordered_set tree<pair<lli,int>, null_type,less<pair<lli,int>>, rb_tree_tag,tree_order_statistics_node_update> 
#define p_q priority_queue 
#define min_p_q priority_queue <int,vt <int>,greater <int>>
using namespace std;
using namespace __gnu_pbds; 
template <typename T> 
void DEBUG_ARR(vt<T> a){
	f(i,0,a.size())cout<<a[i]<<" ";
	cout<<"\n";
}
bool ok(vt <pair<int,int>> &x){
    f(i,0,x.size())if(x[i].first>x[i].second)return 0;
    return 1;
}
int main() { 
    fastio;
    lli n;
    cin>>n;
    lli a[n];f(i,0,n)cin>>a[i];
    reverse(a,a+n);
    map<lli,v32> freq;
    v32 empty_vector;
    f(i,0,n){
        if(freq.find(a[i])==freq.end()){
            freq.insert({a[i],empty_vector});
            freq[a[i]].push_back(i);
        }
        else freq[a[i]].push_back(i);
    }
    v1024 Freq;
    for(auto it:freq){
        Freq.push_back(it.second);
    }
    reverse(Freq.begin(),Freq.end());
    lli dp[Freq.size()]={0};
    dp[(int)Freq.size()-1]=1;
    f(i,0,Freq.size())if(Freq[i].size()>3){
        cout<<0;
        return 0;
    }
    fd(i,(int)Freq.size()-2,-1){
        if(Freq[i+1].size<Freq[i].size()){
            cout<<0;
            return 0;
        }
        lli multiplier=0;
        v32 x;
        f(j,0,Freq[i+1].size())x.push_back(j);
        while(next_permutation(x.begin(),x.end())){
            vt <pair<int,int>> temp;
            f(j,0,Freq[i].size())temp.push_back({Freq[i][j],Freq[i+1][x[j]]});
            if(ok(temp))multiplier++;
        }
        vt <pair<int,int>> temp;
        f(j,0,Freq[i].size())temp.push_back({Freq[i][j],Freq[i+1][x[j]]});
        if(ok(temp))multiplier++;
        dp[i]=(dp[i+1]*multiplier)%mod;
    }
    if(Freq[0].size()==1)dp[0]=3*dp[0];
    else if(Freq[0].size()==2)dp[0]=6*dp[0];
    else dp[0]=6*dp[0];
    dp[0]=(dp[0]%mod+mod)%mod;
    cout<<dp[0]<<"\n";
    return 0; 	
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:67:22: error: invalid use of member function 'std::vector<_Tp, _Alloc>::size_type std::vector<_Tp, _Alloc>::size() const [with _Tp = int; _Alloc = std::allocator<int>; size_type = long unsigned int]' (did you forget the '()' ?)
   67 |         if(Freq[i+1].size<Freq[i].size()){
      |                          ()
Language: C++

#include<bits/stdc++.h>
using Int = long long;
using namespace std;
int main(){
    int N; cin >> N;
    constexpr Int mod = 1000000007;
    vector<int>v(N);
    for(auto& e : v) cin >> e;
    map<Int,Int>cnt;
    Int ans = 1;
    for(int i = 0; i < N; ++i){
        memo[v[i]]++;
        int num = v[i];
        if(cnt[num - 1] != 0){
            ans *= cnt[num - 1];
            ans %= mod;
            cnt[num - 1]--;
        } else if( num != 0)
            return puts("0") * 0;
        cnt[num]++;
    }
    Int maxi = accumulate(v.begin(), v.end(), 0LL,[](Int val, int e){
        return val += (e == 0);
    });
    ans *= (maxi >= 2 ? 6 : 3);
    ans %= mod;
    cout << ans << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: 'memo' was not declared in this scope
   12 |         memo[v[i]]++;
      |         ^~~~
Language: C++

#include <iostream>
using namespace std;
const int MOD = 1e9 + 7;
int N, A[101010], occ[101010];
int main(){
	cin >> N;
	for(int i = 0; i < N; i++)cin >> A[i];

	int cnt_ch = 0;
	long long int res = 1;
	
	for(int i = 0; i < N; i++){
		if(A[i] != 0){
			res = res * occ[A[i] - 1];
			res = res % MOD;
			
			assert(occ[A[i] - 1] >= 1);
			occ[A[i] - 1]--;
		}
		else cnt_ch++;

		occ[A[i]]++;
		assert(occ[A[i]] <= 3);
	}
	res = res * (cnt_ch == 1 ? 3 : 6);
	res = res % MOD;

	cout << res << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:25: error: 'assert' was not declared in this scope
   17 |                         assert(occ[A[i] - 1] >= 1);
      |                         ^~~~~~
a.cc:2:1: note: 'assert' is defined in header '<cassert>'; this is probably fixable by adding '#include <cassert>'
    1 | #include <iostream>
  +++ |+#include <cassert>
    2 | using namespace std;
a.cc:23:17: error: 'assert' was not declared in this scope
   23 |                 assert(occ[A[i]] <= 3);
      |                 ^~~~~~
a.cc:23:17: note: 'assert' is defined in header '<cassert>'; this is probably fixable by adding '#include <cassert>'
Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <string>
#include <algorithm>
#include <queue>
#include <math.h>
#include <array>
int a(void);
int b(void);
int c(void);
int d(void);
int e(void);

int e(void) {
	e();
	return 0;
}


int a(void) {
	int M1, D1, M2, D2;
	std::cin >> M1 >> D1;
	std::cin >> M2 >> D2;
	if (M1 != M2) {
		std::cout << 1;
	}
	else {
		std::cout << 0;
	}
	return 0;
}

int b(void) {
	int N;
	std::cin >> N;
	double n = static_cast<double>(N) / 1.08;
	
	
	int x = ceil(n);
	if (n < 12) {
		std::cout << N;
	}
	else if (x - n >= 1.0 / 1.08) {
		std::cout << ":(";
	}
	else {
		std::cout << x;
	}

	return 0;
}

int c(void) {
	int X;
	std::cin >> X;
	int c = X % 100;
	int n = X / 100;
	if (c < 5 * (n)) {
		std::cout << 1;
	}
	else {
		std::cout << 0;
	}
	return 0;
}

int d(void) {
	int X, Y;
	std::cin >> X >> Y;
	int mod = 1000000007;
	if (X > 2 * Y || Y > 2 * X) {
		std::cout << 0;
		return 0;
	}
	else {
		int l, r;
		if (X < Y) {
			l = Y;
			r = X;
		}
		else {
			l = X;
			r = Y;
				
		}
		int dif = l - r;
		if((l - 2 * dif) % 3 != 0) {
				std::cout << 0;
				return 0;
		} else {
			long int res = 1;
			for (int i = 1; i <= ((l - 2 * dif) / 3) * 2 + dif; i++) {
				res *= i;
				res %= mod;
				
			}
		
			long int n = 1;
			long int m = 1;
			for (int i = 1; i <= ((l - 2 * dif) / 3) + dif; i++) {
				n *= i;
				n %= mod;
				
			}
			for (int i = 1; i <= ((l - 2 * dif) / 3); i++) {
				m *= i;
				m %= mod;
			}
			std::cout << res << "n" << n << "m" << m;
			
			res /= n*m;
			std::cout << res % mod;
			return 0;
		}
	}
}


int e(void) {
	int N;
	std::cin >> N;

	std::vector<int> A;
	std::vector<int> c;
	int j = 0;
	long long p = 1;
	for (int i = 0; i < N; i++) {
		std::cin >> j;
		A.push_back(j);
		c.push_back(0);
		
		if (A[i] == 0) {
			
			p = p * (3 - c[A[i]]);
			c[A[i]] ++;
		}
		else if (c[A[i]]==0){
			c[A[i]] ++;
			p = p * (c[A[i]-1]);
			p = p % 1000000007;
		}
		
		else {
			
			p = p * (c[A[i]-1] - c[A[i]]);
			p = p % 1000000007;
			c[A[i]] ++;
		}
		
	}
	std::cout << p;
	return 0;

}

Compiler output:
a.cc:120:5: error: redefinition of 'int e()'
  120 | int e(void) {
      |     ^
a.cc:15:5: note: 'int e()' previously defined here
   15 | int e(void) {
      |     ^
Language: C++

#include <iostream>

using namescape std;

int v[1 <<18], c[4];

int main()
  { 
  int n;
  cin>>n;
  
  for(int i = 1; i<= n; i++)
    cin >>v[i];
  
  long long rez = 1;
  
  for(int i = 1; i<=n; i++)
    {
    long long cnt=0;
    int id = -1;
    if(v[i]==c[0])
      { id = 0;
       cnt++;
       }
    if(v[i]==c[1])
      {id=1;
       cnt++;
       }
    if(v[i]==c[2])
      {id=2;
       cnt++;}
    if(id==-1)
      { cout <<"0";
       return 0;
       }
    
    rez*=cnt;
    c[id]++;
    rez %=100000007;
    }
  cout << rez;
  }

Compiler output:
a.cc:3:7: error: expected nested-name-specifier before 'namescape'
    3 | using namescape std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:10:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   10 |   cin>>n;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:33:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   33 |       { cout <<"0";
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:41:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   41 |   cout << rez;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <iostream>
 
using namespace std;
 
int c[4];
int v[1 << 18];
 
int main()
{
    int n;
 
    cin >> n;
 
   for(int i = 1; i <= n; i++)
    cin >> v[i];
 
    long long rez = 1;
 
 
   for(int i = 1; i <= n; i++)
    {
        long long cnt = 0;
        int id = - 1;
        if(v[i] == c[0])
        {
            cnt++;
            id = 0;
        }
        if(v[i] == c[1])
        {
            cnt++;
            id = 1;
        }
        if(v[i] == c[2])
        {
            cnt++;
            id = 2;
        }
 
        if(id == -1)
            {cout <<"0";
             return 0;
            }
 
            rez *= cnt;
            c[id]++;
            rez %= 1000000007;
 
   }
   if(c[1] <=1 && c[2] <=1 && c[0] <=1)
    cout << "0";
   else
   cout << rez;
    return 0;
}
#include <iostream>

using namespace std;

int c[4];
int v[1 << 18];

int main()
{
    int n;

    cin >> n;

   for(int i = 1; i <= n; i++)
    cin >> v[i];

    long long rez = 1;


   for(int i = 1; i <= n; i++)
    {
        long long cnt = 0;
        int id = - 1;
        if(v[i] == c[0])
        {
            cnt++;
            id = 0;
        }
        if(v[i] == c[1])
        {
            cnt++;
            id = 1;
        }
        if(v[i] == c[2])
        {
            cnt++;
            id = 2;
        }

        if(id == -1)
            {cout <<"0";
             return 0;
            }

            rez *= cnt;
            c[id]++;
            rez %= 1000000007;

   }
  
   cout << rez;
    return 0;
}

		

Compiler output:
a.cc:60:5: error: redefinition of 'int c [4]'
   60 | int c[4];
      |     ^
a.cc:5:5: note: 'int c [4]' previously declared here
    5 | int c[4];
      |     ^
a.cc:61:5: error: redefinition of 'int v [262144]'
   61 | int v[1 << 18];
      |     ^
a.cc:6:5: note: 'int v [262144]' previously declared here
    6 | int v[1 << 18];
      |     ^
a.cc:63:5: error: redefinition of 'int main()'
   63 | int main()
      |     ^~~~
a.cc:8:5: note: 'int main()' previously defined here
    8 | int main()
      |     ^~~~
Language: C++

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

int main() {
  ll n;
  cin >> n;
  vector<ll> a (n);
  for(int i=0; i<n; i++){
    cin >> a.at(i);
  }
  ll ans = 1;
  vector<ll> v (3);
  for(int i=0; i<n; i++){
    ll count = 0;
    ll id = -1;
    if(a.at(i) == v.at(0)){
      count++;
      id = 0;
    }
    if(a.at(i) == v.at(1)){
      count++;
      id = 1;
    }
    if(a.at(i) == v.at(2)){
      count++;
      id = 2;
    }
    if(id == -1){
      ans = 0;
      break;
    }
    ans *= count;
    v.at(id)++;
    ans%1000000007
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:19: error: expected ';' before '}' token
   35 |     ans%1000000007
      |                   ^
      |                   ;
   36 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
const int maxn=1e5+5;
const int mod=1e9+7;
int n,x,a,b,c;
ll ans=1;
int main(){
	cin>>n;
	a=b=c=0;
	for(int i=1;i<=n;i++){
		cin>>x;
		ll tmp=0;
		if(x==a)tmp++;
		if(x==b)tmp++;
		if(x==c)tmp++;
		ans*=tmp;ans%=mod; 
		if(x==a)a++;
		else if(x==b)b++;
		else if(x==c)c++;
	}
	cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc:6:1: error: 'll' does not name a type
    6 | ll ans=1;
      | ^~
a.cc: In function 'int main()':
a.cc:12:17: error: 'll' was not declared in this scope
   12 |                 ll tmp=0;
      |                 ^~
a.cc:13:25: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   13 |                 if(x==a)tmp++;
      |                         ^~~
      |                         tm
a.cc:14:25: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   14 |                 if(x==b)tmp++;
      |                         ^~~
      |                         tm
a.cc:15:25: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   15 |                 if(x==c)tmp++;
      |                         ^~~
      |                         tm
a.cc:16:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |                 ans*=tmp;ans%=mod;
      |                 ^~~
      |                 abs
a.cc:16:22: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   16 |                 ans*=tmp;ans%=mod;
      |                      ^~~
      |                      tm
a.cc:21:15: error: 'ans' was not declared in this scope; did you mean 'abs'?
   21 |         cout<<ans<<endl;
      |               ^~~
      |               abs
Language: C++

int main() {
  ll N, A, a = 0, b = 0, c = 0, ans = 1;
  cin >> N;
  for (int i = 0; i < N; i++) {
    cin >> A;
    int pat = 0;
    if (A == a) pat++;
    if (A == b) pat++;
    if (A == c) pat++;
    ans *= pat;
    ans %= 1000000007;
    if (A == a) a++;
    else if (A == b) b++;
    else if (A == c) c++;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:3: error: 'll' was not declared in this scope
    2 |   ll N, A, a = 0, b = 0, c = 0, ans = 1;
      |   ^~
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> N;
      |   ^~~
a.cc:3:10: error: 'N' was not declared in this scope
    3 |   cin >> N;
      |          ^
a.cc:5:12: error: 'A' was not declared in this scope
    5 |     cin >> A;
      |            ^
a.cc:7:14: error: 'a' was not declared in this scope
    7 |     if (A == a) pat++;
      |              ^
a.cc:8:14: error: 'b' was not declared in this scope
    8 |     if (A == b) pat++;
      |              ^
a.cc:9:14: error: 'c' was not declared in this scope
    9 |     if (A == c) pat++;
      |              ^
a.cc:10:5: error: 'ans' was not declared in this scope
   10 |     ans *= pat;
      |     ^~~
a.cc:12:14: error: 'a' was not declared in this scope
   12 |     if (A == a) a++;
      |              ^
a.cc:13:19: error: 'b' was not declared in this scope
   13 |     else if (A == b) b++;
      |                   ^
a.cc:14:19: error: 'c' was not declared in this scope
   14 |     else if (A == c) c++;
      |                   ^
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout << ans << endl;
      |   ^~~~
a.cc:16:11: error: 'ans' was not declared in this scope
   16 |   cout << ans << endl;
      |           ^~~
a.cc:16:18: error: 'endl' was not declared in this scope
   16 |   cout << ans << endl;
      |                  ^~~~
Language: C++

int main() {
  ll N, A, a = 1, b = 0, c = 0, ans = 3;
  cin >> N;
  
  for (int i = 0; i < N; i++) {
    cin >> A;
    if (i == 0) continue;
    else {
      int pat = 0;
      if (A == a) pat++;
      if (A == b) pat++;
      if (A == c) pat++;
      ans *= pat;
      ans %= 1000000007;
      if (A == a) a++;
      else if (A == b) b++;
      else if (A == c) c++;
    }
  }
 
  cout << ans << endl;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:3: error: 'll' was not declared in this scope
    2 |   ll N, A, a = 1, b = 0, c = 0, ans = 3;
      |   ^~
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> N;
      |   ^~~
a.cc:3:10: error: 'N' was not declared in this scope
    3 |   cin >> N;
      |          ^
a.cc:6:12: error: 'A' was not declared in this scope
    6 |     cin >> A;
      |            ^
a.cc:10:16: error: 'a' was not declared in this scope
   10 |       if (A == a) pat++;
      |                ^
a.cc:11:16: error: 'b' was not declared in this scope
   11 |       if (A == b) pat++;
      |                ^
a.cc:12:16: error: 'c' was not declared in this scope
   12 |       if (A == c) pat++;
      |                ^
a.cc:13:7: error: 'ans' was not declared in this scope
   13 |       ans *= pat;
      |       ^~~
a.cc:15:16: error: 'a' was not declared in this scope
   15 |       if (A == a) a++;
      |                ^
a.cc:16:21: error: 'b' was not declared in this scope
   16 |       else if (A == b) b++;
      |                     ^
a.cc:17:21: error: 'c' was not declared in this scope
   17 |       else if (A == c) c++;
      |                     ^
a.cc:21:3: error: 'cout' was not declared in this scope
   21 |   cout << ans << endl;
      |   ^~~~
a.cc:21:11: error: 'ans' was not declared in this scope
   21 |   cout << ans << endl;
      |           ^~~
a.cc:21:18: error: 'endl' was not declared in this scope
   21 |   cout << ans << endl;
      |                  ^~~~
Language: C++

#include <iostream>
using namespace std;
typedef long long ll;

const ll mod = 1e9+7;

int main() {
  ll n; cin >> n;
  ll a[n]; //for(int i=0; i<n; i++) a[i] = i/2;
  for(int i=0; i<n; i++) cin >> a[i];
  ll b[3]; b[0] = b[1] = b[2] = 0; ll an=1;
  for(int i=0; i<n; i++) {
    ll nm = 0, id = -1;
    for(int j=0; j<3; j++) {
      if (a[i] == b[j]) nm++, id=j;
    }
    //if (a[i])
    an = an * nm % mod;
    b[id]++;
  }
  
  //ll bb = 0;
  //for(ll x:b)if (x) bb++;
  // 色1, 2, 3→選び方3, 6, 6
  //if (bb == 1) an = an * 3 % mod;
  //else if (bb == 2) an = an * 6 % mod;
  //else if (bb == 3) an = an * 6 % mod;
  cout << an << endl;
}; i<n; i++) cin >> a[i];
  ll b[3]; b[0] = b[1] = b[2] = 0; ll an=1;
  for(int i=0; i<n; i++) {
    ll nm = 0, id = -1;
    for(int j=0; j<3; j++) {
      if (a[i] == b[j]) nm++, id=j;
    }
    //if (a[i])
    an = an * nm % mod;
    b[id]++;
  }
  
  //ll bb = 0;
  //for(ll x:b)if (x) bb++;
  // 色1, 2, 3→選び方3, 6, 6
  //if (bb == 1) an = an * 3 % mod;
  //else if (bb == 2) an = an * 6 % mod;
  //else if (bb == 3) an = an * 6 % mod;
  cout << an << endl;
}

Compiler output:
a.cc:29:4: error: 'i' does not name a type
   29 | }; i<n; i++) cin >> a[i];
      |    ^
a.cc:29:9: error: 'i' does not name a type
   29 | }; i<n; i++) cin >> a[i];
      |         ^
a.cc:30:12: error: 'b' does not name a type
   30 |   ll b[3]; b[0] = b[1] = b[2] = 0; ll an=1;
      |            ^
a.cc:31:3: error: expected unqualified-id before 'for'
   31 |   for(int i=0; i<n; i++) {
      |   ^~~
a.cc:31:16: error: 'i' does not name a type
   31 |   for(int i=0; i<n; i++) {
      |                ^
a.cc:31:21: error: 'i' does not name a type
   31 |   for(int i=0; i<n; i++) {
      |                     ^
a.cc:47:3: error: 'cout' does not name a type
   47 |   cout << an << endl;
      |   ^~~~
a.cc:48:1: error: expected declaration before '}' token
   48 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using vb = vector<bool>;
using vl = vector<long>;
using vs = vector<string>;
using vvi = vector<vector<int>>;
using vvb = vector<vector<bool>>;
using vvc = vector<vector<char>>;
using pii = pair<int, int>;
using pll = pair<long, long>;
#define fix20 cout << fixed << setprecision(20);
#define rep(i,n) for(int i=0; i<(int)(n);i++)
#define MOD 1000000007

int main(){
  long n;
  cin >> n;
  vector<long> a(n);
  vector<vector<long>> data(n);
  long maxi = 0;
  rep(i,n){
    cin >> a.at(i);
    maxi = max(a.at(i),maxi);
    data.at(a.at(i)).push_back(i);
  }
  long ans = 6;
  if(data.at(0).size() == 1){
    cout << 3 << endl;
    return 0;
  }else if(data.at(0).size() == 0 || data.at(0).size() >= 4){
    cout << 0 << endl;
    return 0;
  }
  rep(i,maxi+1){
    if(data.at(i).size() >= 4){
      cout << 0 << endl;
      return 0;
    }
  }
  rep(i,maxi){
    if(data.at(i).size() < data.a(i+1).size()){
      cout << 0 << endl;
      return 0;
    }
  }
  //cout << maxi << endl;
  for(long i=1;i<=maxi;i++){
    long color = data.at(i-1).size();
    long minus = 0;
    long m = data.at(i).size();
    for(long x : data.at(i)){
      long id = data.at(i-1).size();
      rep(j,data.at(i-1).size()){
        if(x < data.at(i-1).at(j)){
          //if(i == 6) cout << "j is " << j << endl;
          id = j;
          break;
        }
      }
      /*if(i >= 9 ){
        cout << "i:" << i << endl;
        cout << "x:" << x << endl;
        cout << "id:" << id << endl;
        cout << "color:" << color << endl;
      }*/
      long mul = id-minus;
      ans *= mul;
      ans %= MOD;
      color--;
      minus++;
      //if(i==9) cout << "p" << ans << endl;
    }
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:33: error: 'class std::vector<std::vector<long int> >' has no member named 'a'; did you mean 'at'?
   42 |     if(data.at(i).size() < data.a(i+1).size()){
      |                                 ^
      |                                 at
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MOD=1e9+7;
int dp[200000];

signed main(){
  int n;cin>>n;
  vector<int> v(n);
  for(int i=0;i<n;i++)cin>>v[i];
  dp[0]=3;
  for(int i=0;i<n;i++)ans*=dp[v[i]],ans%=MOD,dp[v[i]]--,dp[v[i]+1]++;
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:23: error: 'ans' was not declared in this scope; did you mean 'abs'?
   12 |   for(int i=0;i<n;i++)ans*=dp[v[i]],ans%=MOD,dp[v[i]]--,dp[v[i]+1]++;
      |                       ^~~
      |                       abs
a.cc:13:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   13 |   cout<<ans<<endl;
      |         ^~~
      |         abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N, a=0, b=0, c=0;
  long long ans=1;
  cin >> N;
  vector<int> n(N);
  for(int i=0; i<N; i++){
    cin >> n.at(i);
  }
  for(int i=0; i<N; i++){
    if(n.at(i)==a){
      if(a==b){
        if(b==c){
        ans%=1000000007;          
        ans*=3;
        }
        else{
        ans%=1000000007;
        ans*=2;
        }
      }
      a++;
    }
    else if(n.at(i)==b){
      if(b==c){      
        ans*=2;
      }
      b++;
    }
    else{
      c++;
    }         
  }
  cout << ans%1000000007 << endl;


Compiler output:
a.cc: In function 'int main()':
a.cc:35:34: error: expected '}' at end of input
   35 |   cout << ans%1000000007 << endl;
      |                                  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <vector>
#define MOD 1000000007
using namespace std;

int main() {
  int n; cin >> n;
  vector<int> v(n);
  for (auto &a: v) cin >> a;
  if (a[0] != 0) {
     cout << 0 << endl;
     exit[0];
  }
  
  long long int ans = 3;
  vector<int> cnt(3, 0);
  cnt[0] = 1;
  
  for(int i = 1; i < n; i++) {
    int tmp = 0;
    bool flag = false;
    for(int j = 0; j < 3; j++) {
      if (cnt[j] == v[i]) {
        tmp += 1;
        if (!flag) {
          cnt[j] += 1;
          flag = true;
        }
      }
    }
    ans = (ans * tmp) % MOD;
  }
  cout << ans << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: 'a' was not declared in this scope
   10 |   if (a[0] != 0) {
      |       ^
a.cc:12:12: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   12 |      exit[0];
      |            ^
Language: C++

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

int main() {
  int n; cin >> n;
  vector<int> v(n);
  for (auto &a: v) cin >> a;
  
  long long int ans = 1;
  vector<int> cnt(3, 0);
  cnt[0] = 1;
  
  for(int i = 1; i < n; i++) {
    int tmp = 0;
    bool flag = false;
    for(int j = 0; j < 3; j++) {
      if (cnt[j] == v[i]) {
        tmp += 1;
        if (!flag) {
          cnt[j] += 1;
          flag = true;
        }
      }
    }
    ans = (ans * tmp) % (1e9+7);
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:23: error: invalid operands of types 'long long int' and 'double' to binary 'operator%'
   25 |     ans = (ans * tmp) % (1e9+7);
      |           ~~~~~~~~~~~ ^ ~~~~~~~
      |                |            |
      |                |            double
      |                long long int
Language: C++

#include <bits/stdc++.h>
#define MOD 1e9+7
using namespace std;

int main() {
  int n; cin >> n;
  vector<int> v(n);
  for (auto &a: v) cin >> a;
  
  long long int ans = 1;
  vector<int> cnt(3, 0);
  cnt[0] = 1;
  
  for(int i = 1; i < n; i++) {
    int tmp = 0;
    bool flag = false;
    for(int j = 0; j < 3; j++) {
      if (cnt[j] == v[i]) {
        tmp += 1;
        if (!flag) {
          cnt[j] += 1;
          flag = true;
        }
      }
    }
    ans = (ans * tmp) % MOD;
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:23: error: invalid operands of types 'long long int' and 'double' to binary 'operator%'
   26 |     ans = (ans * tmp) % MOD;
      |           ~~~~~~~~~~~ ^
      |                |
      |                long long int
Language: C++

#include <bits/stdc++.h>
#define MOD 1e9 + 7;
using namespace std;

int main() {
  int n; cin >> n;
  vector<int> v(n);
  for (auto &a: v) cin >> v[i];
  
  long long int ans = 1;
  vector<int> cnt(3, 0);
  cnt[0] = 1;
  
  for(int i = 1; i < n; i++) {
    int tmp = 0;
    bool flag = false;
    for(int j = 0; j < 3; j++) {
      if (cnt[j] == v[i]) {
        tmp += 1;
        if (!flag) {
          cnt[j] += 1;
          flag = true;
        }
      ans = (ans * tmp) % MOD;
    }
    cout << ans << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:29: error: 'i' was not declared in this scope
    8 |   for (auto &a: v) cin >> v[i];
      |                             ^
a.cc:24:25: error: invalid operands of types 'long long int' and 'double' to binary 'operator%'
   24 |       ans = (ans * tmp) % MOD;
      |             ~~~~~~~~~~~ ^
      |                  |
      |                  long long int
a.cc:28:2: error: expected '}' at end of input
   28 | }
      |  ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
#define MOD 1e9 + 7;
using namespace std;

int main() {
  int n; cin >> n;
  vector<int> v(n);
  for (auto a: v) cin >> v[i];
  
  long long int ans = 1;
  vector<int> cnt(3, 0);
  cnt[0] = 1;
  
  for(int i = 1; i < n; i++) {
    int tmp = 0;
    bool flag = false;
    for(int j = 0; j < 3; j++) {
      if (cnt[j] == v[i]) {
        tmp += 1;
        if (!flag) {
          cnt[j] += 1;
          flag = true;
        }
      ans = (ans * tmp % mod);
    }
    cout << ans << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: 'i' was not declared in this scope
    8 |   for (auto a: v) cin >> v[i];
      |                            ^
a.cc:24:26: error: 'mod' was not declared in this scope; did you mean 'modf'?
   24 |       ans = (ans * tmp % mod);
      |                          ^~~
      |                          modf
a.cc:28:2: error: expected '}' at end of input
   28 | }
      |  ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include <bits/stdc++>
#define MOD 1e9 + 7;

int main() {
  int n; cin >> n;
  vector<int> v(n);
  for (auto a: v) cin >> v[i];
  
  long long int ans = 1;
  vector<int> cnt(3, 0);
  cnt[0] = 1;
  
  for(int i = 1; i < n; i++) {
    int tmp = 0;
    bool flag = false;
    for(int j = 0; j < 3; j++) {
      if (cnt[j] == v[i]) {
        tmp += 1;
        if (!flag) {
          cnt[j] += 1;
          flag = true;
        }
      ans = (ans * tmp % mod);
    }
    cout << ans << endl;
  }
}

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

#include <bits/stdc++.h>
#define rep(i, n) for(int i=0; i<(n); ++i)
#define chmin(x,y) x = min(x,y)
#define chmax(x,y) x = max(x,y)
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
const int inf = 1<<21;
const ll INF = 1LL << 60;
const ll mod = 1e9+7;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    vector<int> a(n);
    int maxx = 0;
    rep(i, n){
        int tmp;
        cin >> tmp;
        a[i] = tmp;
        chmax(maxx, tmp);
    }
    if(a[0] != 0){
        cout << 0 << endl;
        reutnr 0;
    }
    vector<int> aa(maxx+2, 0);
    ll ans;
    rep(i, n){
        if(i==0){
            ans = 3;
            aa[0]++;
            continue;
        }
        int tmp = a[i];
        if(aa[tmp] >= 3){
            cout << 0 << endl;
            return 0;
        }
        if(tmp != 0){
            ans = ans *  (aa[tmp-1]-aa[tmp]) % mod;
        }else{
            ans = ans *  (3-aa[tmp]) % mod;
        }
        ans %= mod;
        aa[tmp]++;
    }
    if(ans <= 0){
        ans = 0;
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:9: error: 'reutnr' was not declared in this scope
   27 |         reutnr 0;
      |         ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll MOD = 1000000007;

int main(){
  ll n;
  cin >> n;
  vector<ll> a(n);
  for(auto& i : a) cin >> i;
  ll ans = 1;
  vector<ll> cnt(3);
  for(auto& A : a){
    ll cnt = 0;
    for(auto& i : cnt) if(i == A) cnt++;
    ans *= cnt;
    ans %= MOD;
    for(auto& i : cnt) if(i == A){
      i++;
      break;
    }
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:19: error: 'begin' was not declared in this scope
   15 |     for(auto& i : cnt) if(i == A) cnt++;
      |                   ^~~
a.cc:15:19: note: suggested alternatives:
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166,
                 from a.cc:1:
/usr/include/c++/14/valarray:1238:5: note:   'std::begin'
 1238 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
In file included from /usr/include/c++/14/filesystem:53,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:200:
/usr/include/c++/14/bits/fs_dir.h:608:3: note:   'std::filesystem::__cxx11::begin'
  608 |   begin(recursive_directory_iterator __iter) noexcept
      |   ^~~~~
a.cc:15:19: error: 'end' was not declared in this scope
   15 |     for(auto& i : cnt) if(i == A) cnt++;
      |                   ^~~
a.cc:15:19: note: suggested alternatives:
/usr/include/c++/14/valarray:1265:5: note:   'std::end'
 1265 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/14/bits/fs_dir.h:613:3: note:   'std::filesystem::__cxx11::end'
  613 |   end(recursive_directory_iterator) noexcept
      |   ^~~
a.cc:18:19: error: 'begin' was not declared in this scope
   18 |     for(auto& i : cnt) if(i == A){
      |                   ^~~
a.cc:18:19: note: suggested alternatives:
/usr/include/c++/14/valarray:1238:5: note:   'std::begin'
 1238 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
/usr/include/c++/14/bits/fs_dir.h:608:3: note:   'std::filesystem::__cxx11::begin'
  608 |   begin(recursive_directory_iterator __iter) noexcept
      |   ^~~~~
a.cc:18:19: error: 'end' was not declared in this scope
   18 |     for(auto& i : cnt) if(i == A){
      |                   ^~~
a.cc:18:19: note: suggested alternatives:
/usr/include/c++/14/valarray:1265:5: note:   'std::end'
 1265 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/14/bits/fs_dir.h:613:3: note:   'std::filesystem::__cxx11::end'
  613 |   end(recursive_directory_iterator) noexcept
      |   ^~~
Language: C++

#include <bits/stdint-uintn.h>
#include <cstdint>
#include <vector>
 
using namespace std;
 
const uint64_t MOD = 1e+9 + 7;
 
struct VectorItem {
  uint64_t r, g, b;
 
  VectorItem(uint64_t r = 0, uint64_t g = 0, uint64_t b = 0)
    :r(r), g(g), b(b) {}
};
 
int main()
{
  uint64_t N;
  cin >> N;
 
  vector<uint64_t> A(N);
  for (uint64_t n = 0; n < N; ++n) { cin >> A[n]; }
 
  vector<VectorItem> B(N + 1);
  for (uint64_t n = 0; n < N; ++n) {
    B[n + 1] = B[n];
 
    if (B[n].r == A[n]) { ++B[n + 1].r; }
    else if (B[n].g == A[n]) { ++B[n + 1].g; }
    else if (B[n].b == A[n]) { ++B[n + 1].b; }
  }
 
  uint64_t S = 1;
  for (uint64_t n = 0; n < N; ++n) {
    uint64_t T = 0;
 
    if (B[n].r == A[n]) { ++T; }
    if (B[n].g == A[n]) { ++T; }
    if (B[n].b == A[n]) { ++T; }
 
    S = (S * T) % MOD;
  }
  cout << S << endl;
 
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:3: error: 'cin' was not declared in this scope
   19 |   cin >> N;
      |   ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    3 | #include <vector>
  +++ |+#include <iostream>
    4 | 
a.cc:43:3: error: 'cout' was not declared in this scope
   43 |   cout << S << endl;
      |   ^~~~
a.cc:43:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:43:16: error: 'endl' was not declared in this scope
   43 |   cout << S << endl;
      |                ^~~~
a.cc:4:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    3 | #include <vector>
  +++ |+#include <ostream>
    4 |
Language: C++

#include <bits/stdint-uintn.h>
#include <cstdint>
#include <vector>

using namespace std;

const uint64_t MOD = 1e+9 + 7;

struct VectorItem {
  uint64_t r, g, b;

  VectorItem(uint64_t r = 0, uint64_t g = 0, uint64_t b = 0)
    :r(r), g(g), b(b) {}
};

int main()
{
  uint64_t N;
  cin >> N;

  vector<uint64_t> A(N);
  for (uint64_t n = 0; n < N; ++n) { cin >> A[n]; }

  vector<VectorItem> B(N + 1);
  for (uint64_t n = 0; n < N; ++n) {
    B[n + 1] = B[n];

    if (B[n].r == A[n]) { ++B[n + 1].r; }
    else if (B[n].g == A[n]) { ++B[n + 1].g; }
    else if (B[n].b == A[n]) { ++B[n + 1].b; }
  }

  uint64_t S = 1;
  for (uint64_t n = 0; n < N; ++n) {
    uint64_t T = 0;

    if (B[n].r == A[n]) { ++T; }
    if (B[n].g == A[n]) { ++T; }
    if (B[n].b == A[n]) { ++T; }

    S = (S * T) % MOD;
  }
  cout << S << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:3: error: 'cin' was not declared in this scope
   19 |   cin >> N;
      |   ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    3 | #include <vector>
  +++ |+#include <iostream>
    4 | 
a.cc:43:3: error: 'cout' was not declared in this scope
   43 |   cout << S << endl;
      |   ^~~~
a.cc:43:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:43:16: error: 'endl' was not declared in this scope
   43 |   cout << S << endl;
      |                ^~~~
a.cc:4:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    3 | #include <vector>
  +++ |+#include <ostream>
    4 |
Language: C++

#include <bits/stdc++.h>

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

using namespace std;
using ll = long long;
int mod = 1000000007;

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

include <bits/stdc++.h>

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

using namespace std;
using ll = long long;
int mod = 1000000007;

int main(void){
  cout << 0 << endl;
  return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:10:3: error: 'cout' was not declared in this scope
   10 |   cout << 0 << endl;
      |   ^~~~
a.cc:10:16: error: 'endl' was not declared in this scope
   10 |   cout << 0 << endl;
      |                ^~~~
Language: C++

#include  <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define mod 1000000007
//vector<vector<int>> vec(縦, vector<int>(横));
#define REP(i,N) for(int i=0;i<N;i++)
int gcd(int a, int b) {
    if(a>b){
        swap(a,b);
        }
    while(b%a!=0){
        b%=a;
        swap(a,b);
    }
    return a;
}
int ctoi(char c){
  if(c>='0'&&c<='9'){
    return c-'0';
  }
  return 0;
}


//cout << setprecision(123)<<ans;
//int a=atoi(S.c_str());
//string S=to_string(a);
//int &a=b;
int main(){
  ll N,ans=1LL,a;
  bool ok=false;
  vector<ll>W(3,0);
  cin>>N;
  vector<ll>V(N);
  REP(i,N)cin>>V[i];
  
  if(A[0]!=0)ans=0;
  for(int i=1;i<N;i++){
    if(V[i]!=0&&V[i]!=V[i-1]+1&&ok==false)ans==0;
    if(V[i]==0&&ok==false){
      ok=true;
      a=i;
      W[0]=a;
      W[1]=1;
      continue;
    }
    if(ok){
      if(V[i]==W[0]){
        W[0]++;
        if(V[i]==W[1]){
          if(V[i]==W[2]){
            ans*=3;
          }
          else{
            ans*=2;
          }
        }
        else if(V[i]==W[2]){
          ans*=2;
        }
      }
      else if(V[i]==W[1]){
        W[1]++;
        if(V[i]==W[2]){
          ans*=2;
        }
      }
      else if(V[i]==W[2]){
        W[2]++;
      }
      else ans=0;
      ans%=mod;
    }
  }
  if(ok){
    ans%=mod;
  ans*=3;
  ans%=mod;
  ans*=2;
  ans%=mod;
  cout<<ans<<endl;
  }
  else{
    ans*=3;
    ans%=mod;
    cout<<ans<<endl;
  }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:6: error: 'A' was not declared in this scope
   37 |   if(A[0]!=0)ans=0;
      |      ^