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

#include<iostream>

bool solve(int n, int y){
    y /= 1000;

    for(int a = 0; a <= 2000; a++){
        for(int b = 0; b <= 4000; b++){
            int c = n - a - b;
            if(0 <= c && c <= 20000 && 10*x + 5*y + z == y){
                std::cout << a << " " << b << " " << c << std::endl;
                return true;
             }
        }
    }
    return false;
}

int main(){
    int n, y;
    std::cin >> n >> y;

    if(!solve(n,y)) std::cout << -1 << " " << -1 << " " << -1 << std::endl;
}

Compiler output:
a.cc: In function 'bool solve(int, int)':
a.cc:9:43: error: 'x' was not declared in this scope
    9 |             if(0 <= c && c <= 20000 && 10*x + 5*y + z == y){
      |                                           ^
a.cc:9:53: error: 'z' was not declared in this scope
    9 |             if(0 <= c && c <= 20000 && 10*x + 5*y + z == y){
      |                                                     ^
Language: C++

//ABC081A
#include <bits/stdc++.h>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <math.h>
#include<stdio.h>
#include<climits>
#include<cfloat>
using namespace std;

int main(){
string s;
  int i = s.size()-1;
  cin >> s;
  while(1){
    if(s.substr(i-4,5) == "erase" || s.substr(i-4,5) == "dream"){
i -= 5;
    }else if{s.substr(i-5,6) == "eraser"){
i -= 6;
    }else if(s.substr(i-6,7) == "dreamer"){
i -= 7;
    }else{
cout << "NO" << endl;
      return 0;
    }
if(i == -1){
cout << "YES" << endl;
  return 0;
}
            }
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:19:13: error: expected '(' before '{' token
   19 |     }else if{s.substr(i-5,6) == "eraser"){
      |             ^
      |             (
a.cc:32:4: error: expected '}' at end of input
   32 |   }
      |    ^
a.cc:12:11: note: to match this '{'
   12 | int main(){
      |           ^
Language: C++

#include<algorithm>
#include<string>
using namespace std;
int main(){
  string divide[4]={"dream","dreamer","erase","eraser"};
  string s;
  cin>>s;
  for(int i=0;i<4;i++){
    reverse(divide[i].begin(),divide[i].end());
  }
  reverse(s.begin(),s.end());
  bool can=true;
  for(int i=0;i<s.size();){
    bool can2=false;
    for(int j=0;j<4;j++){
      if(s.substr(i,divide[j].size())==divide[j]){
        can2=true;
        i+=divide[j].size();
      }
      if(can2==false){
        can=false;
        break;
      }
    }
  }
  if(can==true){
    cout<<"YES"<<endl;
  }
  else{
    cout<<"NO"<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin>>s;
      |   ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include<string>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:27:5: error: 'cout' was not declared in this scope
   27 |     cout<<"YES"<<endl;
      |     ^~~~
a.cc:27:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:27:18: error: 'endl' was not declared in this scope
   27 |     cout<<"YES"<<endl;
      |                  ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include<string>
  +++ |+#include <ostream>
    3 | using namespace std;
a.cc:30:5: error: 'cout' was not declared in this scope
   30 |     cout<<"NO"<<endl;
      |     ^~~~
a.cc:30:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:30:17: error: 'endl' was not declared in this scope
   30 |     cout<<"NO"<<endl;
      |                 ^~~~
a.cc:30:17: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

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

int main() {
  std::string str;
  std::cin >> str;
  std::vector<std::string> check = {"maerd", "remaerd","esare","resare"};
  str = std::revers(str.begin(), str.end());
  int flag = 0;
  for (int i; i<str.size();) {
    int temp_flag = 1;
    for (int j; j < 4; j++) {
      if (str.substr(i,check.at(j).size()) == check.at(j)) {
        temp_flag = 0;
        i += check.at(j).size();
        break;
      }
    }
    if (temp_flag) {
      flag = 1;
      break;
    }
  }
  if (flag) {
    std::cout << "NO" << std::endl;
  }
  else {
    std::cout << "YES" << std::endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: 'revers' is not a member of 'std'; did you mean 'reverse'?
   10 |   str = std::revers(str.begin(), str.end());
      |              ^~~~~~
      |              reverse
Language: C++

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

int main() {
  std::string str;
  std::cin >> str;
  std::vector<std::string> check = {"maerd", "remaerd","esare","resare"};
  str = std::revers(str.begin(), str.end());
  int flag = 0;
  for (int i; i<str.size();) {
    int temp_flag = 1;
    for (int j; j < 4; j++) {
      if (str.substring(i,i+check.at(j).size()) == check.at(j)) {
        temp_flag = 0;
        i += check.at(j).size();
        break;
      }
    }
    if (temp_flag) {
      flag = 1;
      break;
    }
  }
  if (flag) {
    std::cout << "NO" << std::endl;
  }
  else {
    std::cout << "YES" << std::endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: 'revers' is not a member of 'std'; did you mean 'reverse'?
   10 |   str = std::revers(str.begin(), str.end());
      |              ^~~~~~
      |              reverse
a.cc:15:15: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'substring'; did you mean 'substr'?
   15 |       if (str.substring(i,i+check.at(j).size()) == check.at(j)) {
      |               ^~~~~~~~~
      |               substr
Language: Java

import java.util.Scanner;

/**
 * @author a-pz
 *
 */
public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		DayDream dd = new DayDream();

		Scanner sc = new Scanner(System.in);
        String S = sc.next();
        sc.close();

		System.out.println(dd.matchToDelete(S));
	}

	enum Word {
		DREAMERDREAMER, DREAMERERASER, DREAMERDREAM, DREAMERERASE,
		ERASERDREAMER , ERASERERASER , ERASERDREAM , ERASERERASE,
		DREAMDREAMER, DREAMERASER,  DREAMDREAM, DREAMERASE,
		ERASEDREAMER, ERASEERASER, ERASEDREAM, ERASEERASE,
		DREAMER, ERASER, DREAM, ERASE

		;

		public String getValue() {
			return this.name().toLowerCase();
		}
	}

	public String matchToDelete(String S) {
		for (Word word:Word.values()) {
			S = S.replace(word.getValue(), "");
		}

		return S.length() == 0 ? "YES" : "NO";
	}

}


Compiler output:
Main.java:13: error: cannot find symbol
		DayDream dd = new DayDream();
		^
  symbol:   class DayDream
  location: class Main
Main.java:13: error: cannot find symbol
		DayDream dd = new DayDream();
		                  ^
  symbol:   class DayDream
  location: class Main
2 errors
Language: Java

import java.util.Scanner;

/**
 * @author a-pz
 *
 */
public class DayDream {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		DayDream dd = new DayDream();

		Scanner sc = new Scanner(System.in);
        String S = sc.next();
        sc.close();

		System.out.println(dd.matchToDelete(S));
	}

	enum Word {
		DREAMERDREAMER, DREAMERERASER, DREAMERDREAM, DREAMERERASE,
		ERASERDREAMER , ERASERERASER , ERASERDREAM , ERASERERASE,
		DREAMDREAMER, DREAMERASER,  DREAMDREAM, DREAMERASE,
		ERASEDREAMER, ERASEERASER, ERASEDREAM, ERASEERASE,
		DREAMER, ERASER, DREAM, ERASE

		;

		public String getValue() {
			return this.name().toLowerCase();
		}
	}

	public String matchToDelete(String S) {
		for (Word word:Word.values()) {
			S = S.replace(word.getValue(), "");
		}

		return S.length() == 0 ? "YES" : "NO";
	}

}


Compiler output:
Main.java:7: error: class DayDream is public, should be declared in a file named DayDream.java
public class DayDream {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
char a[101000];
long long k,m,n;
int main()
{
    cin>>a;
    n=strlen(a);
    for(int i=0;i<n;i++)
    {
        if(a[i]=='e')
            if(a[i+1]=='r'&&a[i+2]=='a'&&a[i+3]=='s'&&a[i+4]=='e')
                if(a[i+5]=='r') i+=5;
                	else i+=4;
	        else if(a[i]=='d')
	            if(a[i+1]=='r'&&a[i+2]=='e'&&a[i+3]=='a'&&a[i+4]=='m')
	                if(a[i+5]=='e'&&a[i+6]=='r'&&a[i+7]=='a'&&a[i+8]=='s'&&a[i+9]=='e') i+=4;
	                else
	                    if(a[i+5]=='e'&&a[i+6]=='r') i+=6;
	                    	else i+=4;
        if(a[i]!=='e'&&a[i]!=='d') {cout<<"NO\n";return 0;}
    }
    cout<<"YES\n";
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:18: error: expected primary-expression before '=' token
   21 |         if(a[i]!=='e'&&a[i]!=='d') {cout<<"NO\n";return 0;}
      |                  ^
a.cc:21:30: error: expected primary-expression before '=' token
   21 |         if(a[i]!=='e'&&a[i]!=='d') {cout<<"NO\n";return 0;}
      |                              ^
Language: C++

// ABC049_C 
#include <iostream> 
#include <string> 
using  namespace std;

int main () {
     // input
    string str;
    cin >> str;
    
    // calculation
    string five, six, seven;
    unsigned  long len = str.length ();
    
    if (len < 5 ) {
        cout << "NO";
         return  0 ;
    } else  if (len == 5 ) {
         if (str == "dream" || str == "erase" ) {
            cout << "YES";
             return  0 ;
        } else {
            cout << "NO";
             return  0 ;
        }
    } else  if (len == 6 ) {
         if (str == "eraser" ) {
            cout << "YES";
             return  0 ;
        } else {
            cout << "NO";
             return  0 ;
        }
    } else  if (len == 7 ) {
         if (str == "dreamer" ) {
            cout << "YES";
             return  0 ;
        } else {
            cout << "NO";
             return  0 ;
        }
    } else {
         while (str.length ()! = 0 ) {
            = Str.Substr five (Str.Size () - 1 - 4 , 5 );
             an if (five == "dream" || five == "erase" ) {
                Str.Erase (Str.End () - 5 , Str.End ());
            } else {
                = Str.Substr six (Str.Size () - 1 - 5 , 6 );
                 an if (six == "eraser" ) {
                    Str.Erase (Str.End () - 6 , Str.End ());
                } else {
                    = Str.Substr seven (Str.Size () - 1 - 6 , 7 );
                     an if (seven == "dreamer" ) {
                        Str.Erase (Str.End () - 7 , Str.End ());
                    } else {
                        cout << "NO" << "\n" ;
                         return  0 ;
                    }
                }
            }
        }
        cout << "YES" << "\n" ;
         return  0 ;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:43:30: error: expected ')' before '!' token
   43 |          while (str.length ()! = 0 ) {
      |                ~             ^
      |                              )
a.cc:43:32: error: expected primary-expression before '=' token
   43 |          while (str.length ()! = 0 ) {
      |                                ^
Language: C++

#define DBG 0 //submit 0
#define ll long long
#if DBG
    #include <algorithm>
    #include <array>
    #include <ctime>
    #include <cstdlib>
    #include <string>
    #include <vector>
    #include <unordered_map>
    #include <iostream>
    #include <cmath>
    #include <queue>
    #include <numeric>
#else
    #include <bits/stdc++.h>
#endif

using namespace std;


int main(){
    string divide[4] = {"dream", "dreamer", "erase", "eraser"};

    string S;
    cin >> S;

    queue<int> BFS;
    bool flag = false;
    BFS.push(0);
    while(!BFS.empty()){ // キューが空になるまで続ける
        int t = BFS.front();
        BFS.pop();
        if(t == S.size()){ // 最後まで切れたら成功
            can = true;
            break;
        }
        for(string s : divide){
            if(S.substr(t, s.size()) == s){ // 切れたらとりあえず切ったことにしてみる
                BFS.push(t + s.size());
            }
        }
    }
    
    
    cout << (flag ? "YES" : "NO") << endl;
    //cout << ans << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:35:13: error: 'can' was not declared in this scope; did you mean 'tan'?
   35 |             can = true;
      |             ^~~
      |             tan
Language: C++

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

int main(){
  string S, T = "", "";
  int i = 0;
  cin >> S;
  while (i < S.size()-1) {
    if (S.at(i) == 'd' && S.at(i+1) == 'r' && S.at(i+2) == 'e' && S.at(i+3) == 'a' && S.at(i+4) == 'm') {
      if (S.at(i+5) == 'e' && S.at(i+6) == 'r') {
        if (S.at(i+7) == 'a' && S.at(i+8) == 's' && S.at(i+9) == 'e') {
          if (S.at(i+10) == 'r') {
            T += "dreameraser";
            i += 10;
          }
          else {
            T += "dreamerase";
            i += 9;
          }
        }
        else {
          T += "dreamer";
          i += 6;
        }
      }
      else {
        T += "dream";
        i += 4;
      }
    }
    else if (S.at(i) == 'e' && S.at(i+1) == 'r' && S.at(i+2) == 'a' && S.at(i+3) == 's' && S.at(i+4) == 'e') {
      if (S.at(i+5) == 'r') {
        T += "eraser";
        i += 5;
      }
      else {
        T += "erase";
        i += 4;
      }
    }
    else {
      cout << "NO" << endl;
      break;
    }
  }
  if (S == T) {
    cout << "YES" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:21: error: expected unqualified-id before string constant
    5 |   string S, T = "", "";
      |                     ^~
Language: C++

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

int main(){
  String S, T = "", "";
  int i = 0;
  cin >> S;
  while (i < S.size()-1) {
    if (S.at(i) == 'd' && S.at(i+1) == 'r' && S.at(i+2) == 'e' && S.at(i+3) == 'a' && S.at(i+4) == 'm') {
      if (S.at(i+5) == 'e' && S.at(i+6) == 'r') {
        if (S.at(i+7) == 'a' && S.at(i+8) == 's' && S.at(i+9) == 'e') {
          if (S.at(i+10) == 'r') {
            T += "dreameraser";
            i += 10;
          }
          else {
            T += "dreamerase";
            i += 9;
          }
        }
        else {
          T += "dreamer";
          i += 6;
        }
      }
      else {
        T += "dream";
        i += 4;
      }
    }
    else if (S.at(i) == 'e' && S.at(i+1) == 'r' && S.at(i+2) == 'a' && S.at(i+3) == 's' && S.at(i+4) == 'e') {
      if (S.at(i+5) == 'r') {
        T += "eraser";
        i += 5;
      }
      else {
        T += "erase";
        i += 4;
      }
    }
    else {
      cout << "NO" << endl;
      break;
    }
  }
  if (S == T) {
    cout << "YES" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'String' was not declared in this scope
    5 |   String S, T = "", "";
      |   ^~~~~~
a.cc:7:10: error: 'S' was not declared in this scope
    7 |   cin >> S;
      |          ^
a.cc:13:13: error: 'T' was not declared in this scope
   13 |             T += "dreameraser";
      |             ^
a.cc:17:13: error: 'T' was not declared in this scope
   17 |             T += "dreamerase";
      |             ^
a.cc:22:11: error: 'T' was not declared in this scope
   22 |           T += "dreamer";
      |           ^
a.cc:27:9: error: 'T' was not declared in this scope
   27 |         T += "dream";
      |         ^
a.cc:33:9: error: 'T' was not declared in this scope
   33 |         T += "eraser";
      |         ^
a.cc:37:9: error: 'T' was not declared in this scope
   37 |         T += "erase";
      |         ^
a.cc:46:12: error: 'T' was not declared in this scope
   46 |   if (S == T) {
      |            ^
Language: C++

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

int main(){
  String S, T;
  int i;
  cin >> S;
  while (i < S.size()-1) {
    if (S.at(i) == 'd' && S.at(i+1) == 'r' && S.at(i+2) == 'e' && S.at(i+3) == 'a' && S.at(i+4) == 'm') {
      if (S.at(i+5) == 'e' && S.at(i+6) == 'r') {
        if (S.at(i+7) == 'a' && S.at(i+8) == 's' && S.at(i+9) == 'e') {
          if (S.at(i+10) == 'r') {
            T += "dreameraser";
            i += 10;
          }
          else {
            T += "dreamerase";
            i += 9;
          }
        }
        else {
          T += "dreamer";
          i += 6;
        }
      }
      else {
        T += "dream";
        i += 4;
      }
    }
    else if (S.at(i) == 'e' && S.at(i+1) == 'r' && S.at(i+2) == 'a' && S.at(i+3) == 's' && S.at(i+4) == 'e') {
      if (S.at(i+5) == 'r') {
        T += "eraser";
        i += 5;
      }
      else {
        T += "erase";
        i += 4;
      }
    }
    else {
      cout << "NO" << endl;
      break;
    }
  }
  if (S == T) {
    cout << "YES" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'String' was not declared in this scope
    5 |   String S, T;
      |   ^~~~~~
a.cc:7:10: error: 'S' was not declared in this scope
    7 |   cin >> S;
      |          ^
a.cc:13:13: error: 'T' was not declared in this scope
   13 |             T += "dreameraser";
      |             ^
a.cc:17:13: error: 'T' was not declared in this scope
   17 |             T += "dreamerase";
      |             ^
a.cc:22:11: error: 'T' was not declared in this scope
   22 |           T += "dreamer";
      |           ^
a.cc:27:9: error: 'T' was not declared in this scope
   27 |         T += "dream";
      |         ^
a.cc:33:9: error: 'T' was not declared in this scope
   33 |         T += "eraser";
      |         ^
a.cc:37:9: error: 'T' was not declared in this scope
   37 |         T += "erase";
      |         ^
a.cc:46:12: error: 'T' was not declared in this scope
   46 |   if (S == T) {
      |            ^
Language: C++

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

typedef long long ll;
#define MOD = 1000000007;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define ALL(a) begin(a),end(a)
#define COUNTOF(a) (sizeof(a)/sizeof(a[0]))
template<class T> istream& operator >> (istream& s, vector<T>& v)
{ for (T& x: v) { s >> x; } return s;}
template<class T> void cout_v(const vector<T>& c)
{ for (int i = 0; i < c.size(); i++) cout << c[i] << endl; }
template<class K, class V> void cout_v(map<K, V>& m)
{ for(auto it=m.begin();it!=m.end();it++)cout<<it->first<<":"<<it->second<<endl;}
template<class T> void cout_h(const vector<T>& c)
{ for (int i = 0; i < c.size(); i++) cout << c[i] << (i==c.size()-1?"\n":" "); }
template<class T> inline bool chmin(T& a, T b) {return a>b?a=b,true:false;}
template<class T> inline bool chmax(T& a, T b) {return a<b?a=b,true:false;}
inline int powi(int x,int y) {int p=1; while(y--) p*=x; return p;}
template<class T> inline bool is_overlap(const T& a, const T& b, const T& p, const T& q)
{ return p <=b && a <= q; }
#define SP << " " <<
#define FMT(a) #a<<":"<<a 
#define FMT2(a,b) #a<<":"<<a<<", "<<#b<<":"<<b 
#define FMT3(a,b,c) #a<<":"<<a<<", "<<#b<<":"<<b<<", "<<#c<<":"<<c 
#define FMT4(a,b,c,d) #a<<":"<<a<<", "<<#b<<":"<<b<<", "<<#c<<":"<<c<<", "<<#d<<":"<<d 
#define ANS(a) cout<<a<<endl
void yes(bool f){cout<<(f?"yes":"no")<<endl;}
void Yes(bool f){cout<<(f?"Yes":"No")<<endl;}
void YES(bool f){cout<<(f?"YES":"NO")<<endl;}
inline template<class T> void sort_uniq(T& c) { sort(ALL(c)); c.erase(unique(ALL(c)), c.end()); }

int main()
{
    cin.tie(0); ios::sync_with_stdio(false);
    //cout<<std::fixed<<std::setprecision(10);

    string S; cin >>S;
    vector<string> words = {"dream", "dreamer", "erase", "eraser" };

    deque<int> q = { 0 };

    while (q.size() != 0) {
        int p = q.front(); q.pop_front();
        vector<int> uniq;
        for (auto& w: words) {
            if (S.substr(p, w.size()) == w) {
                int next_p = p + w.size();
                if (next_p == S.size()) {
                    YES(true);
                    return 0;
                } else {
                    uniq.push_back(next_p);
                }
            }
        }
        sort_uniq(uniq);
        q.insert(q.end(), ALL(uniq));
    }

    YES(false);
}


Compiler output:
a.cc:31:16: error: expected unqualified-id before '<' token
   31 | inline template<class T> void sort_uniq(T& c) { sort(ALL(c)); c.erase(unique(ALL(c)), c.end()); }
      |                ^
a.cc:31:98: error: expected ';' before 'int'
   31 | inline template<class T> void sort_uniq(T& c) { sort(ALL(c)); c.erase(unique(ALL(c)), c.end()); }
      |                                                                                                  ^
      |                                                                                                  ;
   32 | 
   33 | int main()
      | ~~~
Language: C++

#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
#include<string>
using namespace std;
typedef long long ll;
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; };
ll lcm(ll a, ll b) { return a / gcd(a, b) * b; };
string divide[4] = { "dream","dreamer","erase","eraser" };

int main() {
	string s;
	cin >> s;
	reverse(s.begin(), s.end());
	for (int i = 0;i < 4;++i)reverse(divide[i].begin(), divide[i].end());

	bool can = true;
	for (int i = 0;i < s.size();++i) {
		bool can2 = false;
		for (int j = 0;j < 4;++j) {
			string d = divide[j];
			if (s.substr(i, d.size()) == d) {
				can2 = true;
				i += d.size();
			}
		}
	}
	if (!can2) {
		can = false;
		break;
	}
	if (can)cout << "YES" << endl;
	else cout << "NO" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:14: error: 'can2' was not declared in this scope; did you mean 'can'?
   27 |         if (!can2) {
      |              ^~~~
      |              can
a.cc:29:17: error: break statement not within loop or switch
   29 |                 break;
      |                 ^~~~~
Language: C++

#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
#include<string>
using namespace std;
typedef long long ll;
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
ll lcm(ll a, ll b) { return a / gcd(a, b) * b; }
string divide[4] = { "dream","dreamer","erase","eraser" };

int main() {
	string s;
	cin >> s;
	reverse(s.begin(), s.end());
	for (int i = 0;i < 4;++i)reverse(divide[i].begin(), divide[i].end());

	bool can = true;
	for (int i = 0;i < s.size();++i) {
		bool can2 = false;
		for (int j = 0;j < 4;++j) {
			string d = divide[j];
			if (s.substr(i, d.size()) == d) {
				can2 = true;
				i += d.size();
			}
		}
	}
	if (!can2) {
		can = false;
		break;
	}
	if (can)cout << "YES" << endl;
	else cout << "NO" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:14: error: 'can2' was not declared in this scope; did you mean 'can'?
   27 |         if (!can2) {
      |              ^~~~
      |              can
a.cc:29:17: error: break statement not within loop or switch
   29 |                 break;
      |                 ^~~~~
Language: C++

#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
#include<string>
using namespace std;
typedef long long ll;
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
ll lcm(ll a, ll b) { return a / gcd(a, b) * b; }
string divide[4]={"dream","dreamer","erase","eraser"}

int main() {
	string s;
	cin >> s;
	reverse(s.begin(), s.end());
	for (int i = 0;i < 4;++i)reverse(divide[i].begin(), divide[i].end());

	bool can = true;
	for (int i = 0;i < s.size();++i) {
		bool can2 = false;
		for (int j = 0;j < 4;++j) {
			string d = divide[j];
			if (s.substr(i, d.size()) == d) {
				can2 = true;
				i += d.size();
			}
		}
	}
	if (!can2) {
		can = false;
		break;
	}
	if (can)cout << "YES" << endl;
	else cout << "NO" << endl;
}

Compiler output:
a.cc:10:1: error: expected ',' or ';' before 'int'
   10 | int main() {
      | ^~~
Language: C++

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

int main(){
  string s, t;
  cin >> s;
  t = "";
  while (t.size() < s.size()) {
    if (s.at(t.size()) == 'd' && s.at(t.size()+1) == 'r' && s.at(t.size()+2) == 'e' && s.at(t.size()+3) == 'a' && s.at(t.size()+4) == 'm') {
      if (s.at(t.size()+5) == 'e' && s.at(t.size()+6) == 'r')
        t += "dreamer";
      else
        t += "dream";
    }
    else if (s.at(t.size()) == 'e' && s.at(t.size()+1) == 'r' && s.at(t.size()+2) == 'a' && s.at(t.size()+3) == 's' && s.at(t.size()+4) == 'e') {
      if (s.at(t.size())+5 == 'r')
        t += "eraser";
      else
        t += "erase";
    }
    else {
      cout << "NO" << endl;
    }
    if (t == s)
      cout << "YES" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:2: error: expected '}' at end of input
   26 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

#include <iostream>
#icnlude <vector>

using namespace std;

int main(){
  string s;
  cin >> s;
  int p = s.size();
  string v[4] = {"dream", "dreamer", "erase", "eraser"};
  bool f = true;
  while(p != 0){
    bool matched = false;
    for(int i = 0; i < v.size(); i++){
      if(s.substr(p-v[i].size(), v[i].size) == v[i]){
        matched = true;
        p -= v[i].size;
      }
    }
    if(!matched){
      break;
      f = false;
    }
  }
  if(f) cout << "YES";
  else cout << "NO";
}

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #icnlude; did you mean #include?
    2 | #icnlude <vector>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:14:26: error: request for member 'size' in 'v', which is of non-class type 'std::string [4]' {aka 'std::__cxx11::basic_string<char> [4]'}
   14 |     for(int i = 0; i < v.size(); i++){
      |                          ^~~~
a.cc:15:39: error: invalid use of non-static 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]'
   15 |       if(s.substr(p-v[i].size(), v[i].size) == v[i]){
      |                                  ~~~~~^~~~
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:1076:7: note: declared here
 1076 |       size() const _GLIBCXX_NOEXCEPT
      |       ^~~~
a.cc:17:19: 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 '()' ?)
   17 |         p -= v[i].size;
      |              ~~~~~^~~~
      |                       ()
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {
        try(Scanner sc = new Scanner(System.in);) {
            String src = sc.nextLine();
            String res = src.replaceAll(word, "dream").replaceAll(word, "dreamer").replaceAll(word, "erase").replaceAll(word, "eraser");
            System.out.println(res.length() == 0 ? "YES" : "NO");
        }
    }
}

Compiler output:
Main.java:7: error: cannot find symbol
            String res = src.replaceAll(word, "dream").replaceAll(word, "dreamer").replaceAll(word, "erase").replaceAll(word, "eraser");
                                                                                                                        ^
  symbol:   variable word
  location: class Main
Main.java:7: error: cannot find symbol
            String res = src.replaceAll(word, "dream").replaceAll(word, "dreamer").replaceAll(word, "erase").replaceAll(word, "eraser");
                                                                                              ^
  symbol:   variable word
  location: class Main
Main.java:7: error: cannot find symbol
            String res = src.replaceAll(word, "dream").replaceAll(word, "dreamer").replaceAll(word, "erase").replaceAll(word, "eraser");
                                                                  ^
  symbol:   variable word
  location: class Main
Main.java:7: error: cannot find symbol
            String res = src.replaceAll(word, "dream").replaceAll(word, "dreamer").replaceAll(word, "erase").replaceAll(word, "eraser");
                                        ^
  symbol:   variable word
  location: class Main
4 errors
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {
        final List<String> wordPoolReversed = Arrays.asList("dream", "dreamer", "erase", "eraser");
        try(Scanner sc = new Scanner(System.in);) {
            String src = sc.nextLine();
            wordList.forEach(word -> {
                src.replaceAll("word", "");
            });
            System.out.println(src.length() == 0 ? "YES" : "NO");
        }
    }
}

Compiler output:
Main.java:8: error: cannot find symbol
            wordList.forEach(word -> {
            ^
  symbol:   variable wordList
  location: class Main
1 error
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {
        final List<String> wordPoolReversed = {"maerd", "remaerd", "esare", "resare"};
        try(Scanner sc = new Scanner(System.in);) {
            StringBuilder srcReversedStringBuilder = new StringBuilder().append(sc.nextLine());
            String srcReversed = srcReversedStringBuilder.reverse().toString();
            boolean canCompose = true;
            for (int i = 0; i < srcReversed.length() - 2; i++) {
                boolean canDevide = false;
                for (String word : wordPoolReversed) {
                    if (word.equals(srcReversed.substring(i, word.length()))) {
                        canDevide = true;
                        i += word.length();
                    } 
                }
                if (!canDevide) {
                    canCompose = false;
                    break;
                }
            }
            System.out.println(canCompose ? "YES" : "NO");
        }
    }
}

Compiler output:
Main.java:5: error: illegal initializer for List<String>
        final List<String> wordPoolReversed = {"maerd", "remaerd", "esare", "resare"};
                                              ^
1 error
Language: Java

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

        S = S.replace("eraser", "").replace("erase", "").replace("dreamer", "").replace("dream", "");
        
        if (S.length() == 0) {
            System.out.println("YES");
        } else {
            System.out.println("NO");    
        }
    }
}

Compiler output:
Main.java:3: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

class Main {
    public static void main(String[] args) {
        String[] strs = {
            "dream",
            "dreamer",
            "erase",
            "eraser"
        };
        Scanner sc = new Scanner(System.in);
        String S = sc.next();

        while (true) {
            boolean endsWithStr = false;
            for (String str: strs) {
                if (S.endsWith(str)) {
                    endsWithStr = true;
                    S = S.substring(0, S.length() - str.length());
                    break;
                }
            }
            if (!endsWithStr) {
                System.out.println("NO");
                break;
            }
            if (S.length() <= 0) {
                System.out.println("YES");
                break;
            }
        }
    }
}

Compiler output:
Main.java:9: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:9: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

class Main {
    static String[] strs = {
        "dream",
        "dreamer",
        "erase",
        "eraser"
    };

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

        while (true) {
            boolean endsWithStr = false;
            for (String str: strs) {
                if (S.endsWith(str)) {
                    endsWithStr = true;
                    S = S.substring(0, S.length() - str.length());
                    break;
                }
            }
            if (!endsWithStr) {
                System.out.println("NO");
                break;
            }
            if (S.length() <= 0) {
                System.out.println("YES");
                break;
            }
        }
    }
}

Compiler output:
Main.java:10: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:10: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

public class Main {
    static String[] strs = {"dream", "dreamer", "erase", "eraser"};
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        String S = sc.next();

        while (true) {
            boolean endsWithStr = false;
            for (String str: strs) {
                if (S.endsWith(str)) {
                    endsWithStr = true;
                    S = S.substring(0, S.length() - str.length());
                    break;
                }
            }
            if (!endsWithStr) {
                System.out.println("NO");
                break;
            }
            if (S.length() <= 0 ) {
                System.out.println("YES");
                break;
            }
        }
    }
}

Compiler output:
Main.java:4: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:4: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include<iostream>
#include<string>
#include<algorithm>

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

int main(){
    string hantei[4] = {"dream","dreamer","erase","eraser"};
    string S;
    bool can = true;
    cin >> S;
    reverse(S.begin(),S.end());
    rep(i,4) reverse(hantei[i].begin(),hantei[i].end());
    for(int i=0;i<S.size();){
        bool can2 = false;
        rep(j,4){
            if (S.substr(i,hantei[j].size) == hantei[j]){
                can2 = true;
                i += hantei[j].size();
                break;
            }
        }
        if (!can2){
            can = false;
            break;
        }
    }
    if (can) cout << "YES" << endl;
    else cout << "NO" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:38: error: invalid use of non-static 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]'
   19 |             if (S.substr(i,hantei[j].size) == hantei[j]){
      |                            ~~~~~~~~~~^~~~
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:1076:7: note: declared here
 1076 |       size() const _GLIBCXX_NOEXCEPT
      |       ^~~~
Language: C++

#include<iostream>
#include<string>
#include<algorithm>

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

int main(){
    string hantei[4] = {"dream","dreamer","erase","eraser"};
    string S;
    bool can = true;
    cin >> S;
    reverse(S.begin(),S.end());
    rep(i,4) reverse(hantei[i].begin(),hantei[i].end());
    for(int i=0;i<S.size();){
        bool can2 = false;
        rep(j,4){
            if (S.substr == i,hantei[j].size()){
                can2 = true;
                i += hantei[j].size();
                break;
            }
        }
        if (!can2){
            can = false;
            break;
        }
    }
    if (can) cout << "YES" << endl;
    else cout << "NO" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:19: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::substr(size_type, size_type) const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
   19 |             if (S.substr == i,hantei[j].size()){
      |                 ~~^~~~~~
Language: Java

import java.util.Scanner;
import java.util.Arrays;

public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String S = scan.next();
        StringBuffer S1 = new StringBuffer(S);
        String S2 = S1.reverse().toString();
        int flag = 0;
        String error = "NO";
        int a = 0;

        String[] T = {"dream" ,"dreamer" ,"erase" ,"eraser"};

        for(int i = 0 ; i < T.length ; i++){
            StringBuffer T1 = new StringBuffer(T[i]);
            String T2 = T1.reverse().toString();
            T[i] = T2;
        }

        do{            
            for(int i = 0 ; i < T.length ; i++){
                
                if(S2.length() >= T[i].length() && S2.substring(0,T[i].length()).equals(T[i])){

                    if(S2.length() == T[i].length()){
                        flag = 1;
                        error = "YES";
                        break;
                    }

                    else{
//                        S2 = S2.substring((T[i].length()));
                        S2 = S2.delete(0,(T[i].length()));
                        flag = 0;
                        break;
                    }
                }

                else{
                    flag = 1;
                    error = "NO";
                }
            }

        }while(flag == 0);

        System.out.println(error);
    }
}

Compiler output:
Main.java:35: error: cannot find symbol
                        S2 = S2.delete(0,(T[i].length()));
                               ^
  symbol:   method delete(int,int)
  location: variable S2 of type String
1 error
Language: Java

import java.util.Scanner;
import java.util.Arrays;

public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String S = scan.next();
        StringBuffer S1 = new StringBuffer(S);
        String S2 = S1.reverse().toString();
        int flag = 0;
        String error = "NO";
        int a = 0;

        String[] T = {"dream" ,"dreamer" ,"erase" ,"eraser"};

        for(int i = 0 ; i < T.length ; i++){
            StringBuffer T1 = new StringBuffer(T[i]);
            String T2 = T1.reverse().toString();
            T[i] = T2;
        }

        do{            
            for(int i = 0 ; i < T.length ; i++){
                
                if(S2.length() >= T[i].length() && S2.substring(0,T[i].length()).equals(T[i])){

                    if(S2.length() == T[i].length()){
                        flag = 1;
                        error = "YES";
                        break;
                    }

                    else{
//                        S2 = S2.substring((T[i].length()));
                        S2 = S2.delte(0,(T[i].length()));
                        flag = 0;
                        break;
                    }
                }

                else{
                    flag = 1;
                    error = "NO";
                }
            }

        }while(flag == 0);

        System.out.println(error);
    }
}

Compiler output:
Main.java:35: error: cannot find symbol
                        S2 = S2.delte(0,(T[i].length()));
                               ^
  symbol:   method delte(int,int)
  location: variable S2 of type String
1 error
Language: Java

import java.util.Scanner;
import java.util.Arrays;

public class C049{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String S = scan.next();
        StringBuffer S1 = new StringBuffer(S);
        String S2 = S1.reverse().toString();
        int flag = 0;
        String error = "NO";
        int a = 0;

        String[] T = {"dream" ,"dreamer" ,"erase" ,"eraser"};

        for(int i = 0 ; i < T.length ; i++){
            StringBuffer T1 = new StringBuffer(T[i]);
            String T2 = T1.reverse().toString();
            T[i] = T2;
        }

//        System.out.println(Arrays.toString(T));

        do{
            
            a = a + 1;
//            System.out.println(a);
            for(int i = 0 ; i < T.length ; i++){
                
                if(S2.length() >= T[i].length() && S2.substring(0,T[i].length()).equals(T[i])){
//                    System.out.println(S2.length());
//                    System.out.println(T[i].length());

                    if(S2.length() == T[i].length()){
//                        System.out.println(S2.length());
//                        System.out.println(T[i].length());
                        flag = 1;
                        error = "YES";
                        break;
                    }

                    else{
                        S2 = S2.substring((T[i].length()));
//                        System.out.println(S2);
                        flag = 0;
                        break;
                    }
                }

                else{
                    flag = 1;
                    error = "NO";
//                    System.out.println("MISS");
                }
            }

        }while(flag == 0);


        System.out.println(error);
    }
}

Compiler output:
Main.java:4: error: class C049 is public, should be declared in a file named C049.java
public class C049{
       ^
1 error
Language: Java

//第 4 問: ABC 087 B - Coinsi (200 点)

import java.util.Scanner;

public class ABC049C{

	public static void main(String[] args){

		Scanner scan = new Scanner(System.in);

		String S = scan.next();
		StringBuilder sb = new StringBuilder();
		sb.append(S);

		/*
		String A = "";
		String B = "";
		String C = "";
		*/

		while(true) {

			int counter = sb.length();

			if (counter > 7) {

				if (sb.substring(0,8).equals("dreamera")){

					sb = sb.delete(0,5);

				}
				else if(sb.substring(0,7).equals("dreamer")){

					sb = sb.delete(0,6);

				}
				else if(S.substring(0,6).equals("eraser")){

					sb = sb.delete(0,5);

				}
				else if ((sb.substring(0,5).equals("dream")) || (sb.substring(0,5).equals("erase"))) {

					sb = sb.delete(0,5);

				}
				else {
					System.out.println("NO");
					//System.out.println("A");
					break;
				}

			//System.out.println(sb);


			}
			else if (counter == 7) {
				if(sb.toString().equals("dreamer")) {
					System.out.println("YES");
					break;
				}
				else {
					System.out.println("NO");
					//System.out.println("B");
					break;
				}

			}
			else if (counter == 6) {

				if(sb.toString().equals("eraser")) {
					System.out.println("YES");
					break;
				}
				else {
					System.out.println("NO");
					//System.out.println("C");
					break;
				}
			}
			else if (counter == 5) {
				if ((sb.toString().equals("dream")) || (sb.toString().equals("erase"))) {
					System.out.println("YES");
					break;
				}
				else{
					System.out.println("NO");
					//System.out.println("D");
					break;
				}
			}
			else {
				System.out.println("NO");
				//System.out.println("E");
				break;
			}

			//System.out.println(sb);

		}

	}
}



Compiler output:
Main.java:5: error: class ABC049C is public, should be declared in a file named ABC049C.java
public class ABC049C{
       ^
1 error
Language: Java

import java.util.Scanner;

public class Atcoder9 {
    public static void main(String[] args) {
//        Scanner sc = new Scanner(System.in);
//        String S = sc.next();
//
//        String[] strList = {"eraser", "erase", "dreamer", "dream"};
//        for (String str : strList) {
//            S = S.replace(str, "");
//            if (S.isEmpty()) {
//                System.out.print("YES");
//                return;
//            }
//        }
//
//        System.out.print("NO");

        Scanner sc = new Scanner(System.in);
        String S = sc.next();

        S = S.replaceAll("dreamer", "-");
        S = S.replaceAll("dreame", "-");
        S = S.replaceAll("eraser", "-");
        S = S.replaceAll("erase", "-");
        S = S.replaceAll("-", "");
        if (S.length() == 0)
            System.out.println("YES");
        else
            System.out.println("NO");
    }
}

Compiler output:
Main.java:3: error: class Atcoder9 is public, should be declared in a file named Atcoder9.java
public class Atcoder9 {
       ^
1 error
Language: Java

import java.util.*;

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

        S=S.replaceAll("eraser","-");
        S=S.replaceAll("erase","-");
        S=S.replaceAll("dreamer","-");
        S=S.replaceAll("dream","-");
        S=S.replaceAll("-","");
        if(S.length()==0){
            System.out.println("YES");
        }else{
            System.out.println("NO")
        }
    }
}

Compiler output:
Main.java:16: error: ';' expected
            System.out.println("NO")
                                    ^
1 error
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

string divide[4] = {"dream", "dreamer", "erase", "sraser"};

int main() {
    string S;
    cin >> S;
    
    reverse(S.begin(),S.end());
    for (int i = 0; i < 4; ++i) reverse(divide[i].begin(), divide[i].end());
  
    bool can = true;
    for (int i = 0; i < S.size();) {
        bool can2 = false;
        for (int j = 0; j < 4; ++j) {
            string d = divide[j];
            if (S.substr(i,d.size()) == d) {
                can2 = true;
                i += d.size();            
            }
        }
        if (!can2) {
            can = false;
            break;
        }
    }
    if (can) cout << "YES" << endl;
    elce cout << "NO" << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:5: error: 'elce' was not declared in this scope
   31 |     elce cout << "NO" << endl;
      |     ^~~~
Language: C++

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

int main(){
  bool flag;
  string S;
  string T[4] = {"dream", "dreamer", "erase", "eraser"};
  cin >> S;
  
  reverse(S.begin(), S.end());
  
  for(int i = 0;i < S.size();i++){
    flag = false;
    for(int j = 0;j < 4;j++){
      if(substr(0,T[j].size()) == T[j]){
        i += T[j].size();
        flag = true;
      }
    }
    
    if(!flag){
      flag = false;
      break;
    }
  }
  
  if(flag){
    cout << "Yes" << endl;
  }else{
    cout << "No"<< endl;
  }
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:15:10: error: 'substr' was not declared in this scope; did you mean 'strstr'?
   15 |       if(substr(0,T[j].size()) == T[j]){
      |          ^~~~~~
      |          strstr