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

import java.util.*;
import java.util.stream.*;

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
        // programming
        String s = getInputString(sc);
        StringBuilder temp = new StringBuilder(s);
        boolean isFound = false;
        String[] words = {"dream","dreamer","erase","eraser"};

        if (temp.length() == 0) {
            output("NO");
            return;
        }
        l1: while (true) {
            for (String w : words) {
                if (temp.ToString().endsWith(w)) {
                    temp = temp.delete(temp.ToString().length() - w.length(), temp.ToString().length());
                    if (temp.ToString().length() == 0) {
		                isFound = true;
		                break l1;
		            }
		            continue l1;
                }
            }

            break;
        }
        if (isFound) {
            output("YES");
        } else {
            output("NO");
        }
	}

	public static String getInputString(Scanner sc) {
		return sc.next();
	}

	public static int getInputInteger(Scanner sc) {
		return Integer.parseInt(sc.next());
	}

	public static void output(String... params) {
		boolean isInit = true;
		String str = "";
		for (String s : params) {
			if (!isInit) {
				str += " ";
			}
			str += s;
			isInit = false;
		}
		System.out.println(str);
	}

    public static int[] toIntegerList(String[] ss) {
        return Stream.of(ss).mapToInt(Integer::parseInt).toArray();
    }

    public static String[] toList(String s) {
        String[] ret = s.split("");
        return ret;
    }

    public static int sum(int[] vals) {
        int sum = 0;
        for (int val : vals) {
            sum += val;
        }
        return sum;
    }

    public static int[] sort(int[] vals, boolean isAsc) {
        Arrays.sort(vals);
		if (isAsc) {
			return vals;
		}
        int[] ret = new int[vals.length];
        for (int i = 0; i < vals.length; i++) {
            ret[vals.length - i - 1] = vals[i];
        }
		return ret;
	}
}

Compiler output:
Main.java:19: error: cannot find symbol
                if (temp.ToString().endsWith(w)) {
                        ^
  symbol:   method ToString()
  location: variable temp of type StringBuilder
Main.java:20: error: cannot find symbol
                    temp = temp.delete(temp.ToString().length() - w.length(), temp.ToString().length());
                                           ^
  symbol:   method ToString()
  location: variable temp of type StringBuilder
Main.java:20: error: cannot find symbol
                    temp = temp.delete(temp.ToString().length() - w.length(), temp.ToString().length());
                                                                                  ^
  symbol:   method ToString()
  location: variable temp of type StringBuilder
Main.java:21: error: cannot find symbol
                    if (temp.ToString().length() == 0) {
                            ^
  symbol:   method ToString()
  location: variable temp of type StringBuilder
4 errors
Language: C++

#include <iostream>
#include <cstring>
#include <array>
using namespace std;

string words[4] = {"dream", "dreamer", "erase", "eraser"};

int main() {
  string S;

  cin >> S;
  reverse(S.begin(), S.end());
  for(int i =0; i< 4; i++)
    reverse(words[i].begin(), words[i].end());

  while(1) {
    const string current = S;
    for(const auto w: words) {
      if (S.find(w) == 0) {
        S.erase(0, w.length());
      }
    }
    if (S.empty()) {
      cout << "YES";
      return 0;
    } else if(current == S) {
      cout << "NO";
      return 0;
    }
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: 'reverse' was not declared in this scope
   12 |   reverse(S.begin(), S.end());
      |   ^~~~~~~
Language: C++

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

using namespace std;

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

int main() {
	string 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[i];

			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:14:24: error: no matching function for call to 'reverse(<unresolved overloaded function type>, <unresolved overloaded function type>)'
   14 |                 reverse(divide[i].begin, divide[i].end);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:1083:5: note: candidate: 'template<class _BIter> void std::reverse(_BIter, _BIter)'
 1083 |     reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
      |     ^~~~~~~
/usr/include/c++/14/bits/stl_algo.h:1083:5: note:   template argument deduction/substitution failed:
a.cc:14:24: note:   couldn't deduce template parameter '_BIter'
   14 |                 reverse(divide[i].begin, divide[i].end);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:249:1: note: candidate: 'template<class _ExecutionPolicy, class _BidirectionalIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::reverse(_ExecutionPolicy&&, _BidirectionalIterator, _BidirectionalIterator)'
  249 | reverse(_ExecutionPolicy&& __exec, _BidirectionalIterator __first, _BidirectionalIterator __last);
      | ^~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:249:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

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

using namespace std;

string devide[4] = { "dream","dreamer","erase","eraser" };

int main() {
	string 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[i];

			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:14:25: error: 'divide' was not declared in this scope; did you mean 'devide'?
   14 |                 reverse(divide[i].begin, divide[i].end);
      |                         ^~~~~~
      |                         devide
a.cc:22:36: error: 'divide' was not declared in this scope; did you mean 'devide'?
   22 |                         string d = divide[i];
      |                                    ^~~~~~
      |                                    devide
Language: C++

#include<bits/stdc++.h>

using namespace std;

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

int main() {
	string 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[i];

			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:12:24: error: no matching function for call to 'reverse(<unresolved overloaded function type>, <unresolved overloaded function type>)'
   12 |                 reverse(divide[i].begin, divide[i].end);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:1083:5: note: candidate: 'template<class _BIter> void std::reverse(_BIter, _BIter)'
 1083 |     reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
      |     ^~~~~~~
/usr/include/c++/14/bits/stl_algo.h:1083:5: note:   template argument deduction/substitution failed:
a.cc:12:24: note:   couldn't deduce template parameter '_BIter'
   12 |                 reverse(divide[i].begin, divide[i].end);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:249:1: note: candidate: 'template<class _ExecutionPolicy, class _BidirectionalIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::reverse(_ExecutionPolicy&&, _BidirectionalIterator, _BidirectionalIterator)'
  249 | reverse(_ExecutionPolicy&& __exec, _BidirectionalIterator __first, _BidirectionalIterator __last);
      | ^~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:249:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

#include<bits/stdc++.h>

using namespace std;

string devide[4] = { "dream","dreamer","erase","eraser" };

int main() {
	string 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[i];

			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:12:25: error: 'divide' was not declared in this scope; did you mean 'devide'?
   12 |                 reverse(divide[i].begin, divide[i].end);
      |                         ^~~~~~
      |                         devide
a.cc:20:36: error: 'divide' was not declared in this scope; did you mean 'devide'?
   20 |                         string d = divide[i];
      |                                    ^~~~~~
      |                                    devide
Language: C++

#include<bits/stdc++.h>

using namespace std;

string devide[4]={"dream","dreamer","erase","eraser"};

int main() {
	string S;

	reverse(S.begin(), S.end());
	for (int i = 0; i < 4; i++) {
		reverse(d[i].begin, d[i].end);
	}

	bool can = true;

	for (int i = 0; i < S.size();) {
		bool can2 = false;
		for (int j = 0; j < 4; j++) {
			string d = d[i];

			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:12:25: error: 'd' was not declared in this scope
   12 |                 reverse(d[i].begin, d[i].end);
      |                         ^
a.cc:20:39: error: conversion from '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   20 |                         string d = d[i];
      |                                       ^
Language: C++

#include<bits/stdc++.h>

using namespace std;

string devide[4]={"dream","dreamer","erase","eraser"}

int main() {
	string S;

	reverse(S.begin(), S.end());
	for (int i = 0; i < 4; i++) {
		reverse(d[i].begin, d[i].end);
	}

	bool can = true;

	for (int i = 0; i < S.size();) {
		bool can2 = false;
		for (int j = 0; j < 4; j++) {
			string d = d[i];

			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:7:1: error: expected ',' or ';' before 'int'
    7 | int main() {
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	string S;
	cin>>S;
	reveres(S.begin(),S.end());
	string P[4]={"dream","dreamer","erase","eraser"};
	for(int i=0;i<4;i++){
		reveres(S[i].begin(),S[i].end());	
	}
	for(int i=0;i<S.size();){
		bool f=false;
		for(int j=0;j<4;j++){
			if(S.compare(i,P[j].size(),p[j])==0){
				i+=p[j].size();
				f=true;
				break;
			}
		}
	if(!f){
		cout<<"NO"<<endl;
		return 0;
	}
}
	cout<<"YES"<<endl;	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'reveres' was not declared in this scope
    6 |         reveres(S.begin(),S.end());
      |         ^~~~~~~
a.cc:9:30: error: request for member 'begin' in 'S.std::__cxx11::basic_string<char>::operator[](((std::__cxx11::basic_string<char>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
    9 |                 reveres(S[i].begin(),S[i].end());
      |                              ^~~~~
a.cc:9:43: error: request for member 'end' in 'S.std::__cxx11::basic_string<char>::operator[](((std::__cxx11::basic_string<char>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'}
    9 |                 reveres(S[i].begin(),S[i].end());
      |                                           ^~~
a.cc:14:52: error: 'p' was not declared in this scope
   14 |                         if(S.compare(i,P[j].size(),p[j])==0){
      |                                                    ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
string s;
string c[4] = {"maerd", "remaerd", "esare", "resare"};
int main(){
	cin>>s;
	int i=0;
	int len=s.size();
	reverse(s.begin(),s.end());
	while(i<len){
		bool flag=false;
		for(int j=0;j<4;j++){
			string tmp=substr(i,c[j].size());
			if(tmp==c[j]){
				i+=c[j].size();
				flag=true;
			}
		}
		if(!flag){
			cout<<"NO";
			return 0;
		}
	}
	cout<<"YES";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:36: error: 'substr' was not declared in this scope; did you mean 'strstr'?
   13 |                         string tmp=substr(i,c[j].size());
      |                                    ^~~~~~
      |                                    strstr
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	cout<<"YES";
	else cout<<"NO";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'else' without a previous 'if'
    5 |         else cout<<"NO";
      |         ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
int main(){
	if(s.size()%2==0) cout<<"YES";
	else cout<<"NO";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:12: error: 's' was not declared in this scope
    6 |         if(s.size()%2==0) cout<<"YES";
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	int s;
	string s;
	cout<<"Frist";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:16: error: conflicting declaration 'std::string s'
    5 |         string s;
      |                ^
a.cc:4:13: note: previous declaration as 'int s'
    4 |         int s;
      |             ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){

	string s;
	cin >> s;
	
	string a[4] = {"dream","dreamer","erase","eraser"}; 	
	int len = s.length();

	reverse(s.begin(),s.end());
	for(int i=0;i<4;i++){
		reverse(a[i].begin(),a[i].end());
	}
	
	for(int s=0;s<len;){
		
		bool can = false;
		for(int i=0;i<4;i++){
			if(s.substr(s,a[i].size())==a[i]){
				i += a[i].size();
				can = true;
			}
		}
	
		if(!can){
			cout << "NO" << endl;
			return 0;
		}
	
	
	
	}

	cout << "YES" << endl;
		



	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:30: error: request for member 'substr' in 's', which is of non-class type 'int'
   22 |                         if(s.substr(s,a[i].size())==a[i]){
      |                              ^~~~~~
Language: C++

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

string word[4] = {"dream", "dreamer", "erase", "eraser"};
string S;

int main() {
    cin >> S;
    reverse(S.begin(), S.end());
    for (int i = 0; i < 4; i++) {
        reverse(word[i].begin(), word[i].end());
    }
    bool r;
    for (int i = 0; i < S.size();) {
        r = 0;
        for (int j = 0; j < 4; j++) {
            string d = word[j];
            if (S.substr(i,d.size()) == d) {
                r = 1;
                i += d.size();
            }
        }
        if (!r) {
            break;
        }
    }
    if (r) {
        cout << "YES" << endl;
    }
    else {
        cout << "NO" << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'reverse' was not declared in this scope
   11 |     reverse(S.begin(), S.end());
      |     ^~~~~~~
Language: C++

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

//解説参考
int main() {
	string s;
	cin >> s;


	reverse(s.begin(), s.end());

	while (s != "") {
		if (s.substr(0, 5) == "emerd") s = s.substr(5);
		else if (s.substr(0, 7) == "eremerd") s = s.substr(7);
		else if (s.substr(0, 5) == "esare") s = s.substr(5);
		else if (s.substr(0, 6) == "resare") s = s.substr(6);
		else break;
	}


	cout << ((s.size()) ? "NO" : "YES") << endl;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'reverse' was not declared in this scope
   11 |         reverse(s.begin(), s.end());
      |         ^~~~~~~
Language: C++

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


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


Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: 's' was not declared in this scope
   10 |         if (s.substr(0,6)=="dreamer") S=s.substr(7);
      |             ^
Language: C++

#include<iostream>
#include<functional>
#include<algorithm>

using namespace std;

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


Compiler output:
a.cc:10:26: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                          ^~~~~~~
a.cc:10:34: warning: multi-character literal with 7 characters exceeds 'int' size of 4 bytes
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                                  ^~~~~~~~~
a.cc:10:44: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                                            ^~~~~~~
a.cc:10:52: warning: multi-character literal with 6 characters exceeds 'int' size of 4 bytes
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                                                    ^~~~~~~~
a.cc: In function 'int main()':
a.cc:10:26: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                          ^~~~~~~
a.cc:10:34: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                                  ^~~~~~~~~
a.cc:10:44: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                                            ^~~~~~~
a.cc:10:52: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   10 |         string words[4]={'dream','dreamer','erase','eraser'};
      |                                                    ^~~~~~~~
a.cc:13:31: error: request for member 'begin' in 'words', which is of non-class type 'std::string [4]' {aka 'std::__cxx11::basic_string<char> [4]'}
   13 |                 reverse(words.begin(),words.end());
      |                               ^~~~~
a.cc:13:45: error: request for member 'end' in 'words', which is of non-class type 'std::string [4]' {aka 'std::__cxx11::basic_string<char> [4]'}
   13 |                 reverse(words.begin(),words.end());
      |                                             ^~~
a.cc:27:12: error: 'can' was not declared in this scope; did you mean 'scanf'?
   27 |         if(can)
      |            ^~~
      |            scanf
Language: C

#include <stdio.h>
#include <string.h>
 
int main(){
 
    char divide[4][8] = {"dream", "dreamer", "erase", "eraser"};
    int dp[100010];
    int len;
    int i, j;
 
    char S[100010];
    scanf("%s", S);
    len = strlen(S);
 
    dp[0] = 1;
    
    for(i = 1; i < len; i++){
        dp[i] = 0;
    }
    
    for(i = 0; i < len; ++i){
        for(j = 0; j < 4; j++){
            if(!strncmp(S+i, divide[j], strlen(divide[j]))){
                dp[i + strlen(divide[j])] = d[i]; 
            }
        }
    }
    
    if(dp[len]) printf("YES");
    else printf("NO");
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:24:45: error: 'd' undeclared (first use in this function)
   24 |                 dp[i + strlen(divide[j])] = d[i];
      |                                             ^
main.c:24:45: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

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

int main() {
    string S, T;
    cin >> S;

    string much_ptrn[4] = {"dream", "dreamer", "erase", "eraser"};

    reverse(S.begin(), S.end());
    for (int i=0; i<4; i++) {
        reverse(much_ptrn[i].begin(), much_ptrn[i].end());
    }

    bool can_solve = true;
    for (int i=0; i<S.size();) {
        bool is_much = false;
        for (int j=0; j<4; j++) {
            string pattern = much_ptrn[i];
            if (S.substr(i, pattern.size()) == pattern) {
                is_much = true;
                i += pattern.size();
            }
        }
        if (!is_much) {
            can_solve = false;
            break;
        }
    }
    if (can_solve) cout << "YES" << endl;
    else cout << "NO" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'reverse' was not declared in this scope
   11 |     reverse(S.begin(), S.end());
      |     ^~~~~~~
Language: C

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

void rev(char *s){
  int l=strlen(s),i;
  for(i = 0;i<l/2;i++){
  char t=s[i];
  s[i] = s[l - i -1];
  s[l-1-i]=t;
}

int main(void){
    int i, j, k;
    char s[100001];
    char divide[4][8] = {"dream", "dreamer", "erase", "eraser"};
    int len;
  
    scanf("%s",s);
    len = strlen(s);
    
    for(i = 0; i < 4; i++) rev(divide[i]);
  
    rev(s);
    
    for(i = 0; i < len;){
        k = -1;
        for(j = 0; j < 4; j++){
            if(!strncpy(s+i, divide[j], strlen(divide[j]))){
                k += strlen(divide[j]);
                break;
            }
        }  
        if(k == -1){
            printf("NO");
            return 0;;  
        }
        i += k;
    }
    
    printf("YES");
    return 0;
}


Compiler output:
main.c: In function 'rev':
main.c:43:1: error: expected declaration or statement at end of input
   43 | }
      | ^
Language: C++

#include<iostream>
using namespace std;
int main(){
	string a,t,c[4]={"dream","erase","eraser","dreamer"};
	int n=0,size;
	cin>>a;
	size=a.size();
	a+="dre";
	cout<<size<<endl;
	for(int i=0;i<size;i++){
		t=a.substr(i,5);
		if(t==c[0]){
			if(a[i+5]=='\0'||a[i+5]=='e'&&a[i+6]=='r'&&a[i+7]=='a'||a[i+5]=='d'){
				i+=4;
				continue;
			}
		}else(t==c[1]){
			i+=4;
			continue;
		}
		t=a.substr(i,6);
		if(t==c[2]){
			i+=5;
			continue;
		}
		t=a.substr(i,7);
		if(t==c[3]){
			i+=6;
			continue;
		}
//------------------------------		
		cout<<"NO";
		return 0;
	}
	cout<<"YES";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:31: error: expected ';' before '{' token
   17 |                 }else(t==c[1]){
      |                               ^
      |                               ;
a.cc:17:24: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
   17 |                 }else(t==c[1]){
      |                      ~~^~~~~~~
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:3755:5: note: declared here
 3755 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
Language: C++

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

using namespace std;

int main(int argc, char const *argv[]) {
  string s, t;
  cin >> s;
  reverse(s.begin(),s.end());
  vector<string> tset = {"dream", "dreamer", "erase", "eraser"};
  for (size_t i = 0; i < tset.size(); i++) reverse(tset[i].begin(), tset[i].end());
  bool tf = true;
  while (s.size()>0 and tf) {
    bool check = false;
    for (size_t i = 0; i < tset.size(); i++) {
      if (tset[i]==s.substr(0, tset[i].size())) {
        check=true;
        s.erase(s.begin(), s.begin()+tset[i].size());
        break;
      }
    }
    if (!check) tf = false;
  }
  if (tf) cout << "YES" << endl;
  else cout << "NO" << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:10:3: error: 'reverse' was not declared in this scope
   10 |   reverse(s.begin(),s.end());
      |   ^~~~~~~
Language: C++

#include<iostream>
using namespace std;

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

  string S;
  cin >> S;
   //後ろから解く代わりに全ての文字列を左右反転
   reverse(S.begin(),S.end());
   for(int i=0; i<4; i++) reverse(devide[i].begin(),devide[i].end());

   //橋から切って行く
   bool can=true;
   for(int i=0; i<S.size();){
     bool can2 = false ; //４個の文字列たちのどれでdevideできるのか
     for(int j=0; j<4; j++){
       string d=divide[j]
       if(S.substr(i,d.size())==d){ //dでdivideできるか
         can2=true;
         i += d.size(); //divideできたらiをすすめる
       }
   }
   if(!can2){ //divide できなかったら
     can= false;
     break;
   }
 }

 if(can) cout <<"YES" <<endl;
 else cout<<"NO"<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected ',' or ';' before 'string'
    7 |   string S;
      |   ^~~~~~
a.cc:8:10: error: 'S' was not declared in this scope
    8 |   cin >> S;
      |          ^
a.cc:10:4: error: 'reverse' was not declared in this scope
   10 |    reverse(S.begin(),S.end());
      |    ^~~~~~~
a.cc:11:35: error: 'devide' was not declared in this scope; did you mean 'divide'?
   11 |    for(int i=0; i<4; i++) reverse(devide[i].begin(),devide[i].end());
      |                                   ^~~~~~
      |                                   divide
a.cc:19:8: error: expected ',' or ';' before 'if'
   19 |        if(S.substr(i,d.size())==d){ //dでdivideできるか
      |        ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main () {
  string S;
  cin >> S;
  reverse(S.begin(), S.end());
  vector <string> judge = {maerd, remaerd, esare, resare};
  bool can = true;
  for (int i = 0; i < S.size();) {
    bool can2 = false;
    for (int j = 0; j < 4; j ++) {
      string juge = judge[j];
      if (S.substr(i, juge.size()) == juge) {
        can2 = true;
        i += juge.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:7:28: error: 'maerd' was not declared in this scope
    7 |   vector <string> judge = {maerd, remaerd, esare, resare};
      |                            ^~~~~
a.cc:7:35: error: 'remaerd' was not declared in this scope; did you mean 'read'?
    7 |   vector <string> judge = {maerd, remaerd, esare, resare};
      |                                   ^~~~~~~
      |                                   read
a.cc:7:44: error: 'esare' was not declared in this scope; did you mean 'unshare'?
    7 |   vector <string> judge = {maerd, remaerd, esare, resare};
      |                                            ^~~~~
      |                                            unshare
a.cc:7:51: error: 'resare' was not declared in this scope; did you mean 'rename'?
    7 |   vector <string> judge = {maerd, remaerd, esare, resare};
      |                                                   ^~~~~~
      |                                                   rename
a.cc:7:57: error: could not convert '{<expression error>, <expression error>, <expression error>, <expression error>}' from '<brace-enclosed initializer list>' to 'std::vector<std::__cxx11::basic_string<char> >'
    7 |   vector <string> judge = {maerd, remaerd, esare, resare};
      |                                                         ^
      |                                                         |
      |                                                         <brace-enclosed initializer list>
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main () {
  string S;
  cin >> S;
  reverse(S.begin(), S.end());
  vector<string>judge(4) = {maerd, remaerd, esare, resare};
  bool can = true;
  for (int i = 0; i < S.size();) {
    bool can2 = false;
    for (int j = 0; j < 4; j ++) {
      string juge = judge[j];
      if (S.substr(i, juge.size()) == juge) {
        can2 = true;
        i += juge.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:7:26: error: expected ',' or ';' before '=' token
    7 |   vector<string>judge(4) = {maerd, remaerd, esare, resare};
      |                          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main () {
  string S;
  cin >> S;
  reverse(S.begin(), S.end());
  vector <string> judge(4) = {maerd, remaerd, esare, resare};
  bool can = true;
  for (int i = 0; i < S.size();) {
    bool can2 = false;
    for (int j = 0; j < 4; j ++) {
      string juge = judge[j];
      if (S.substr(i, juge.size()) == juge) {
        can2 = true;
        i += juge.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:7:28: error: expected ',' or ';' before '=' token
    7 |   vector <string> judge(4) = {maerd, remaerd, esare, resare};
      |                            ^
a.cc:24:2: error: expected '}' at end of input
   24 | }
      |  ^
a.cc:3:13: note: to match this '{'
    3 | int main () {
      |             ^
Language: Java

public class Main {
    public static void main(String[] args) {
        String[] words = {"dream", "dreamer", "erase", "eraser"};

        for (int i = 0; i < 4; i++) {
            words[i] = reverseString(words[i]);
        }

        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        String S = null;
        try {
            S = bufferedReader.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }

        S = reverseString(S);

        String answer = "YES";
        boolean isMatch = false;

        for (int i = 0; i < S.length(); i++) {
            isMatch = false;
            for (String word : words) {
                if (S.startsWith(word)) {
                    isMatch = true;
                    //S =  S.substring(word.length());
                    i += word.length();
                    break;
                }
            }
            if (!isMatch) {
                answer = "NO";
                break;
            }
        }
        System.out.format(answer);
    }

    private static String reverseString(String input) {
        StringBuilder builder = new StringBuilder();
        builder.append(input);
        return builder.reverse().toString();
    }
}

Compiler output:
Main.java:9: error: cannot find symbol
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        ^
  symbol:   class BufferedReader
  location: class Main
Main.java:9: error: cannot find symbol
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
                                            ^
  symbol:   class BufferedReader
  location: class Main
Main.java:9: error: cannot find symbol
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
                                                               ^
  symbol:   class InputStreamReader
  location: class Main
Main.java:13: error: cannot find symbol
        } catch (IOException e) {
                 ^
  symbol:   class IOException
  location: class Main
4 errors
Language: Java

import java.util.Scanner;

public class ABC_049_C_Daydream {
    public static void main(String[] args) {
        String[] words = {"eraser", "dreamer", "erase", "dream"};

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

        String answer = "YES";
        while (S.length() > 0) {
            boolean isMatch = false;
            for (String word : words) {
                if (S.endsWith(word)) {
                    isMatch = true;
                    S = S.substring(0, S.lastIndexOf(word));
                    break;
                }
            }
            if (!isMatch) {
                answer = "NO";
                break;
            }

        }

        System.out.format(answer);
    }
}

Compiler output:
Main.java:3: error: class ABC_049_C_Daydream is public, should be declared in a file named ABC_049_C_Daydream.java
public class ABC_049_C_Daydream {
       ^
1 error
Language: Java

import java.util.Scanner;

public class ABC_049_C_Daydream {
    public static void main(String[] args) {
        String[] words = {"", "dream", "dreamer", "erase", "eraser"};

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

        String answer = "NO";

        loop: for (int a = 0; a < 5; a++) {
            for (int b = 0; b < 5; b++) {
                for (int c = 0; c < 5; c++) {
                    for (int d = 0; d < 5; d++) {
                        for (int e = 0; e < 5; e++) {
                            String T = words[a] + words[b] + words[c] + words[d] + words[e];
                            if(S.equals(T)) {
                                answer = "YES";
                                break loop;
                            }
                        }
                    }
                }
            }
        }
        System.out.format(answer);
    }
}

Compiler output:
Main.java:3: error: class ABC_049_C_Daydream is public, should be declared in a file named ABC_049_C_Daydream.java
public class ABC_049_C_Daydream {
       ^
1 error
Language: C++

＃院cぅで　＜stぢお。h＞

院t　マイン（ヴォイd）｛
　院t　あ＝１００；
　ｐりんｔｆ（”％ｄ￥ｎ”、あ）；
　列rん　０；
｝

Compiler output:
a.cc:1:1: error: extended character 　 is not valid in an identifier
    1 | ＃院cぅで　＜stぢお。h＞
      | ^
a.cc:1:1: error: extended character 。 is not valid in an identifier
a.cc:3:1: error: extended character 　 is not valid in an identifier
    3 | 院t　マイン（ヴォイd）｛
      | ^
a.cc:4:1: error: extended character 　 is not valid in an identifier
    4 | 　院t　あ＝１００；
      | ^
a.cc:4:1: error: extended character 　 is not valid in an identifier
a.cc:5:1: error: extended character 　 is not valid in an identifier
    5 | 　ｐりんｔｆ（”％ｄ￥ｎ”、あ）；
      | ^
a.cc:5:1: error: extended character ” is not valid in an identifier
a.cc:5:1: error: extended character ” is not valid in an identifier
a.cc:5:1: error: extended character 、 is not valid in an identifier
a.cc:6:1: error: extended character 　 is not valid in an identifier
    6 | 　列rん　０；
      | ^
a.cc:6:1: error: extended character 　 is not valid in an identifier
a.cc:1:1: error: '\U0000ff03\U00009662c\U00003045\U00003067\U00003000\U0000ff1cst\U00003062\U0000304a\U00003002h\U0000ff1e' does not name a type
    1 | ＃院cぅで　＜stぢお。h＞
      | ^~~~~~~~~~~~~~~~~~~~~~~~
Language: Java

import com.sun.tools.doclets.formats.html.SourceToHTMLConverter;

import java.util.Scanner;

public class Main {
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        String S = sc.next();
        String[] str = S.split("");
        int i = 0;
        boolean flag = false;
        while(i < str.length){
            if(S.substring(i).indexOf("dream") == -1 && S.substring(i).indexOf("erase") == -1) {
                System.out.println("NO");
                flag = true;
                break;
            }else if(S.substring(i, i + 5).equals("dream")){
                try {
                    if (str[i + 5].concat(str[i + 6]).equals("er")) {
                        if(i + 7 < str.length){
                            if(str[i + 7].equals("a")){
                                i = i + 5;
                            }else{
                                i = i + 7;
                            }
                        }else{
                            i = i + 5;
                        }
                    } else {
                        i = i + 5;
                    }
                }catch (ArrayIndexOutOfBoundsException e){
                    i = i + 5;
                }
            }else if(S.substring(i, i + 5).equals("erase")){
                try {
                    if (str[i + 5].equals("r")) {
                        i = i + 6;
                    } else {
                        i = i + 5;
                    }
                }catch(ArrayIndexOutOfBoundsException e){
                    i = i + 5;
                }
            }
        }
        if(!flag){
            System.out.println("YES");
        }
    }
}


Compiler output:
Main.java:1: error: package com.sun.tools.doclets.formats.html does not exist
import com.sun.tools.doclets.formats.html.SourceToHTMLConverter;
                                         ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
char s[111111];
int m[111111];
string p[]={"dream",
    "dreamer",
    "erase",
    "eraser"
    };
bool f(int i){
    if(m[i]==0){
        for(string &t:p){
            int flag=1;
            for(int j=0;j<t.size();j++){
                if(s[i+j]!=t[j]){
                    flag=0;
                    break;
                }
            }
            if(flag&&f(i+t.size()))return m[i]=1;
        }
    }
    return m[i]=-1;
}
int main(){
    gets(s);
    m[strlen(s)]=1;
    cout<<(f(0)?"YES":"NO")<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
   26 |     gets(s);
      |     ^~~~
      |     getw
Language: C++

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<string.h>
#include<iostream>
#include<algorithm>
#include<queue>
#include<time.h>
using namespace std;
char s[100008]={0};
int jd(int i)
{
    if(s[i-4]=='d'&&s[i-3]=='r'&&s[i-2]=='e'&&s[i-1]=='a'&&s[i]=='m')return 1;
    else return 0;
}
int jdr(int i)
{
    if(s[i-6]=='d'&&s[i-1]=='r'&&s[i-4]=='e'&&s[i-3]=='a'&&s[i-2]=='m'&&s[i-1]=='e'&&s[i]=='r')return 1;
    else return 0;
}

int je(int i)
{
    if(s[i-4]=='e'&&s[i-3]=='r'&&s[i-2]=='a'&&s[i-1]=='s'&&s[i]=='e')return 1;
    else return 0;
}
int jer(int i)
{
    if(s[i-5]=='e'&&s[i-4]=='r'&&s[i-3]=='a'&&s[i-2]=='s'&&s[i-1]=='e'&&s[i]=='r')return 1;
    else return 0;
}

int main()
{
    int i,j,k,n,l;
    gets(s);
    l=strlen(s);
    for(i=l-1;i>=0;)
    {
      int f=0;
      if(i>=4&&jd(i))
      {
          f=1;
          i=i-5;
      }
      else if(i>=6&&jdr(i))
      {
          f=1;
          i=i-7;
      }
      else if(i>=5&&jer(i))
      {
          f=1;
          i=i-6;
      }
            else if(i>=4&&je(i))
      {
          f=1;
          i=i-5;
      }
      if(f==0||(i<4&&i>=0))
      {
          printf("NO\n");
          exit(0);
      }
    }
    printf("YES\n");
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
   36 |     gets(s);
      |     ^~~~
      |     getw
Language: C++

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

int main()
{
    string s;
    cin>>s;
    reverse(s.begin(),s.end());
    vector< string>div(4){"maerd","remaerd","esare","eresare"};
    
    bool isyes=true;
   for(int i=0;i<s.size();){
     bool t=true;
      for(int j=0;j<4;j++){
        if(div.at(j)==s.substr(i,div.at(j).size())){
        t=false;
        i+=div.at(j).size();
        }
      }
    if(!t){
    isyes=false;
    break;
    
  }
}
if(isyes) cout<<"YES"<<endl;
else cout<<"NO"<<endl;
          
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:26: error: expected ',' or ';' before '{' token
    9 |     vector< string>div(4){"maerd","remaerd","esare","eresare"};
      |                          ^
Language: C++

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

int main()
{
    string s;
    cin>>s;
    reverse(s.begin(),s.end());
    vector< string>div(4)={"maerd","remaerd","esare","eresare"};
    
    bool isyes=true;
   for(int i=0;i<s.size();){
     bool t=true;
      for(int j=0;j<4;j++){
        if(div.at(j)==s.substr(i,div.at(j).size())){
        t=false;
        i+=div.at(j).size();
        }
if(!t){
isyes=false;
break;
}
}
if(isyes) cout<<"YES"<<endl;
else cout<<"NO"<<endl;
          
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:26: error: expected ',' or ';' before '=' token
    9 |     vector< string>div(4)={"maerd","remaerd","esare","eresare"};
      |                          ^
a.cc:28:2: error: expected '}' at end of input
   28 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

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

int main()
{
    string s;
    cin>>s;
    reverse(s.begin(),s.end());
    vector< string>div(4)={"maerd","remaerd","esare","eresare"};
    
    bool isyes=true;
   for(int i=0;i<s.size();){
     bool t=true;
      for(int j=0;j<4;j++){
        if(div.at(j)==s.substr(i,div.at(j).size())){
        t=false;
        i+=div.at(j).size();
        }
if(!t){
isyes=false;
break;
}
if(isyes) cout<<"YES"<<endl;
else cout<<"NO"<<endl;
          
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:26: error: expected ',' or ';' before '=' token
    9 |     vector< string>div(4)={"maerd","remaerd","esare","eresare"};
      |                          ^
a.cc:27:2: error: expected '}' at end of input
   27 | }
      |  ^
a.cc:12:28: note: to match this '{'
   12 |    for(int i=0;i<s.size();){
      |                            ^
a.cc:27:2: error: expected '}' at end of input
   27 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: Java

import java.util.*;

public class Main {
  public static void main(String[] args) {    
	Scanner sc = new Scanner(System.in);
  	String s = sc.nextLine();
    boolean divi = true;
    while(divi) {
      divi = false;
      if(s.endsWith("eraser")) {
        divi = true;
        s -= "eraser";
      }
      if(s.endsWith("erase")) {
        divi = true;
        s -= "erase";
      }
      if(s.endsWith("dreamer")) {
        divi = true;
        s -= "dreamer";
      }
      if(s.endsWith("dream")) {
        divi = true;
        s -= "dream";
      }
    }
    if(s.length() == 0) {
      System.out.println("YES");
    } else {
      System.out.println("NO");
    }
  }
}

Compiler output:
Main.java:12: error: bad operand types for binary operator '-'
        s -= "eraser";
          ^
  first type:  String
  second type: String
Main.java:16: error: bad operand types for binary operator '-'
        s -= "erase";
          ^
  first type:  String
  second type: String
Main.java:20: error: bad operand types for binary operator '-'
        s -= "dreamer";
          ^
  first type:  String
  second type: String
Main.java:24: error: bad operand types for binary operator '-'
        s -= "dream";
          ^
  first type:  String
  second type: String
4 errors
Language: C++

string S;
	cin >> S;

	string devide[4]={ "maerd","remaerd","esare","resare" };

	reverse(S.begin(), S.end());

	int N = 0;


	int i = 0;
		for (int k = 0; k < 4; k++) {
			string d = devide[k];

			if (devide[k] == S.substr(i, devide[k].size()) ){
				i += d.size();
				k = -1;
			}

		}

		if (i == S.size()) {
			cout<<"YES"<<endl;
		}
		else {
			cout << "NO" << endl;
		}
	



	return 0;
}

Compiler output:
a.cc:1:1: error: 'string' does not name a type
    1 | string S;
      | ^~~~~~
a.cc:2:9: error: 'cin' does not name a type
    2 |         cin >> S;
      |         ^~~
a.cc:4:9: error: 'string' does not name a type
    4 |         string devide[4]={ "maerd","remaerd","esare","resare" };
      |         ^~~~~~
a.cc:6:16: error: expected constructor, destructor, or type conversion before '(' token
    6 |         reverse(S.begin(), S.end());
      |                ^
a.cc:12:17: error: expected unqualified-id before 'for'
   12 |                 for (int k = 0; k < 4; k++) {
      |                 ^~~
a.cc:12:33: error: 'k' does not name a type
   12 |                 for (int k = 0; k < 4; k++) {
      |                                 ^
a.cc:12:40: error: 'k' does not name a type
   12 |                 for (int k = 0; k < 4; k++) {
      |                                        ^
a.cc:22:17: error: expected unqualified-id before 'if'
   22 |                 if (i == S.size()) {
      |                 ^~
a.cc:25:17: error: expected unqualified-id before 'else'
   25 |                 else {
      |                 ^~~~
a.cc:32:9: error: expected unqualified-id before 'return'
   32 |         return 0;
      |         ^~~~~~
a.cc:33:1: error: expected declaration before '}' token
   33 | }
      | ^
Language: C++

#include <iostream>
#include<string>

using namespace std;

int main() {
	string S;
	cin >> S;

	string devide[4]={ "maerd","remaerd","esare","resare" };

	reverse(S.begin(), S.end());

	int N = 0;


	int i = 0;
		for (int k = 0; k < 4; k++) {
			string d = devide[k];

			if (devide[k] == S.substr(i, devide[k].size()) ){
				i += d.size();
				k = -1;
			}

		}

		if (i == S.size()) {
			cout<<"YES"<<endl;
		}
		else {
			cout << "NO" << endl;
		}
	



	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: 'reverse' was not declared in this scope
   12 |         reverse(S.begin(), S.end());
      |         ^~~~~~~
Language: C++

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

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();) {
        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:11:5: error: 'reverse' was not declared in this scope
   11 |     reverse(s.begin(), s.end());
      |     ^~~~~~~