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

#include <bits/stdc++.h>
using namespace std;
int main() { 
  string t;
  cin>>t ;
  for(int i=0;i<t.size();i++){
    if(i!=0&&t.at(i-1)=="P"&&t.at(i)=="?"){
      t.at(i)="D";
    }
    if(i!=0&&t.at(i-1)=="D"&&t.at(i)=="?"){
      t.at(i)="P";
    }
    if(t.at(1)=="?"&&t.at(2)=="?"){
      t.at(i)="P";
    }
  }
      


Compiler output:
a.cc: In function 'int main()':
a.cc:7:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    7 |     if(i!=0&&t.at(i-1)=="P"&&t.at(i)=="?"){
      |              ~~~~~~~~~^~~~~
a.cc:7:37: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    7 |     if(i!=0&&t.at(i-1)=="P"&&t.at(i)=="?"){
      |                              ~~~~~~~^~~~~
a.cc:8:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
    8 |       t.at(i)="D";
      |               ^~~
      |               |
      |               const char*
a.cc:10:23: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 |     if(i!=0&&t.at(i-1)=="D"&&t.at(i)=="?"){
      |              ~~~~~~~~~^~~~~
a.cc:10:37: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 |     if(i!=0&&t.at(i-1)=="D"&&t.at(i)=="?"){
      |                              ~~~~~~~^~~~~
a.cc:11:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
   11 |       t.at(i)="P";
      |               ^~~
      |               |
      |               const char*
a.cc:13:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |     if(t.at(1)=="?"&&t.at(2)=="?"){
      |        ~~~~~~~^~~~~
a.cc:13:29: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |     if(t.at(1)=="?"&&t.at(2)=="?"){
      |                      ~~~~~~~^~~~~
a.cc:14:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
   14 |       t.at(i)="P";
      |               ^~~
      |               |
      |               const char*
a.cc:16:4: error: expected '}' at end of input
   16 |   }
      |    ^
a.cc:3:12: note: to match this '{'
    3 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
vector <string>t ;
  for (int i=0;i<t.size();i++)
  {cin>>t.at(i);}
 for (int i=0;i<t.size()-1;i++)
  if (t.at(i+1)=="D"&&t.at(i)=="?"){
    t.at(i)="P";}
  else if(t.at(i)=="?"){t.at(i)="D"
    }
for(int i=0;i<t.size();i++){
  cout<<t.at(i);}
  cout<<endl;}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:36: error: expected ';' before '}' token
   10 |   else if(t.at(i)=="?"){t.at(i)="D"
      |                                    ^
      |                                    ;
   11 |     }
      |     ~
Language: C++

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

int main() {
string T;
cin>>T;
 for(int i=0;i<T.at( );i++){
  if(T.at(i)=='?'){
   T.at(i)=='D';
  }
 }
cout <<T<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: no matching function for call to 'std::__cxx11::basic_string<char>::at()'
    7 |  for(int i=0;i<T.at( );i++){
      |                ~~~~^~~
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:1287:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::const_reference std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::at(size_type) const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; const_reference = const char&; size_type = long unsigned int]'
 1287 |       at(size_type __n) const
      |       ^~
/usr/include/c++/14/bits/basic_string.h:1287:7: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/bits/basic_string.h:1309:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::reference std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::at(size_type) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; reference = char&; size_type = long unsigned int]'
 1309 |       at(size_type __n)
      |       ^~
/usr/include/c++/14/bits/basic_string.h:1309:7: note:   candidate expects 1 argument, 0 provided
Language: Java

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    
    Scanner sc = new Scanner();
    
    String string = sc.next();
    string = string.replace("?", "D");
    
    System.out.println(string);
  }
}

Compiler output:
Main.java:6: error: no suitable constructor found for Scanner(no arguments)
    Scanner sc = new Scanner();
                 ^
    constructor Scanner.Scanner(Readable,Pattern) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Readable) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,CharsetDecoder) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel,Charset) is not applicable
      (actual and formal argument lists differ in length)
1 error
Language: C++

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

int main() {
  vector<String> T;
  cin >> T;
  T.resize(sizeof(T));
  for(int i = 0; i < sizeof(T); i++ ) {
    if( T[i] == '?' ) {
      if( T[i+1]) == 'D' ) {
        T[i] = 'P'
      } else {
        T[i] = 'D'
      }
    }
  }
  
  cout << T << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'vector' was not declared in this scope
    6 |   vector<String> T;
      |   ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include <cstring>
  +++ |+#include <vector>
    3 | using namespace std;
a.cc:6:10: error: 'String' was not declared in this scope
    6 |   vector<String> T;
      |          ^~~~~~
a.cc:6:18: error: 'T' was not declared in this scope
    6 |   vector<String> T;
      |                  ^
a.cc:11:19: error: expected primary-expression before '==' token
   11 |       if( T[i+1]) == 'D' ) {
      |                   ^~
Language: Java

import java.util.Scanner;

public class B {

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

			StringBuffer sb = new StringBuffer(sc.next());
			for (int i = 0; i < sb.length() - 1; i++) {
				char c = sb.charAt(i);
				if (c == '?') {
					if (sb.charAt(i + 1) == '?') {
						sb.setCharAt(i, 'P');
						sb.setCharAt(i + 1, 'D');

					} else if (sb.charAt(i + 1) == 'D') {
						sb.setCharAt(i, 'P');
					} else {
						sb.setCharAt(i, 'D');
					}
				} else {
					sb.setCharAt(i, c);
				}
			}

			if (sb.charAt(sb.length() - 1) == '?') {
				sb.setCharAt(sb.length() - 1, 'D');
			}
			System.out.println(sb.toString());

		} catch (Exception e) {
		}

	}

}


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

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		String t = sc.next();
// まずstrArraySubに1文字多い配列を作る
String[] strArray = new String[t.length()];
 
// 変数strの長さ分回す
for (int i = 0; i < t.length(); i++) {
    // strの先頭から1文字ずつString型にして取り出す
    String str = String.valueOf(str.charAt(i));
    // 配列に順番に格納する
    strArray[i] = str;
}
 
for (int i = 0; i < strArray.length; i++) {
if(strArray[i]=="?"){
  strArray[i]="D";
}

	StringBuffer buf = new StringBuffer();
	buf.append(strArray[i]);
}
      
		// 出力
		System.out.println(buf.toString());
	}
}

Compiler output:
Main.java:28: error: cannot find symbol
		System.out.println(buf.toString());
		                   ^
  symbol:   variable buf
  location: class Main
1 error
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		String t = sc.next();
// まずstrArraySubに1文字多い配列を作る
String[] strArray = new String[t.length()];
 
// 変数strの長さ分回す
for (int i = 0; i < t.length(); i++) {
    // strの先頭から1文字ずつString型にして取り出す
    String str = String.valueOf(str.charAt(i));
    // 配列に順番に格納する
    strArray[i] = str;
}
 
for (int i = 0; i < strArray.length; i++) {
if(strArray[i]=="?"){
  strArray[i]=="D";
}

	StringBuffer buf = new StringBuffer();
	buf.append(strArray[i]);
}
      
		// 出力
		System.out.println(buf.toString());
	}
}

Compiler output:
Main.java:20: error: not a statement
  strArray[i]=="D";
             ^
1 error
Language: C

#include<stdio.h>
int main()
{
  char t[100000000];
  long int len=0;
  
  scanf("%s",t);
  len=strlen(t);
  
  for(int i=0;i<len;i++)
  {
    if(t[i]=='?' && t[i-1]=='P'){
      t[i]='D'
    }else if(t[i]=='?' && t[i-1]=='D'){
      t[i]='P'
    };
  };
  printf("%s",t);
  
  return 0;
};
      


Compiler output:
main.c: In function 'main':
main.c:8:7: error: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
    8 |   len=strlen(t);
      |       ^~~~~~
main.c:2:1: note: include '<string.h>' or provide a declaration of 'strlen'
    1 | #include<stdio.h>
  +++ |+#include <string.h>
    2 | int main()
main.c:8:7: warning: incompatible implicit declaration of built-in function 'strlen' [-Wbuiltin-declaration-mismatch]
    8 |   len=strlen(t);
      |       ^~~~~~
main.c:8:7: note: include '<string.h>' or provide a declaration of 'strlen'
main.c:13:15: error: expected ';' before '}' token
   13 |       t[i]='D'
      |               ^
      |               ;
   14 |     }else if(t[i]=='?' && t[i-1]=='D'){
      |     ~          
main.c:15:15: error: expected ';' before '}' token
   15 |       t[i]='P'
      |               ^
      |               ;
   16 |     };
      |     ~
Language: C++

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

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

    string ans = "";
    for (int i = 1; i < T.length; i++)
    {
        if (T[i] == '?'){
            ans += "D";
        }
        else {
            ans += T[i];
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:27: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::length() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
    9 |     for (int i = 1; i < T.length; i++)
      |                         ~~^~~~~~
      |                                 ()
Language: C++

#include <bits/stdc++.h>

using namespace std;

string s, int le;

int main() {
	cin >> s;
	le = s.size();
	for (int i = 0; i < le; i++) {
		if (s[i] == "?") {
			cout << "D";
		}
		else {
			cout << s[i];
		}
	}
	return 0;
}

Compiler output:
a.cc:5:11: error: expected unqualified-id before 'int'
    5 | string s, int le;
      |           ^~~
a.cc: In function 'int main()':
a.cc:9:9: error: 'le' was not declared in this scope
    9 |         le = s.size();
      |         ^~
a.cc:11:26: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   11 |                 if (s[i] == "?") {
Language: C++

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

int main(){

  string str;
  cin >> str;

  for(int i=0;i<str.length();i++){
    if(str[i]=='?'){
      if(str[i-1]=='P') str[i]='D';
      else str[i]='P'; 
  }

  cout << str << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:2: error: expected '}' at end of input
   16 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <bitset>
#include <vector>
#include <string>
#include <algorithm>
#include <set>
#include <map>
#include <cmath>
#include <regex>
#include <iomanip>
#include <climits>
#include <utility>
#include <queue>
using namespace std;
using ll = long long int;
using dd = long double;
const ll MOD = 1e9 + 7;

ll gcd(ll a, ll b)
{
    if (a % b == 0)
    {
        return b;
    }
    return gcd(b, a % b);
}

ll fact(ll n)
{
    if (n == 0)
    {
        return 1;
    }
    if (n == 1)
    {
        return 1;
    }
    return n * fact(n - 1) % MOD;
}

ll pow_fast(ll n, ll k) {
    if (k == 0) {
        return 1;
    }
    if (k == 1) {
        return n;
    }

    if (k % 2 == 0) {
        ll tmp = pow_fast(n, k / 2LL);
        return tmp * tmp % MOD;
    } else {
        ll tmp = pow_fast(n, k / 2LL);
        tmp *= tmp;
        tmp %= MOD;
        return tmp * n % MOD;
    }
}

int main()
{
    string S;
    cin >> S;
    for (size_t i = 0; i < S.size(); i++)
    {
        if (S[i] == '?') {
            S[i] = 'D';
        }
    }
    cout << SA_USERSPACE_MASK << endl;
        
}

Compiler output:
a.cc: In function 'int main()':
a.cc:70:13: error: 'SA_USERSPACE_MASK' was not declared in this scope
   70 |     cout << SA_USERSPACE_MASK << endl;
      |             ^~~~~~~~~~~~~~~~~
Language: C++

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


int main() {
    
    string t;
    cin >> t;
    rep(i,t.size()) {
        if(t[i] == '?') {
            t[i] = 'D'
        }
        cout<<t[i];
    }

 return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:23: error: expected ';' before '}' token
   16 |             t[i] = 'D'
      |                       ^
      |                       ;
   17 |         }
      |         ~
Language: C++

#include <iostream>
#include <bitset>
#include <vector>
#include <string>
#include <algorithm>
#include <set>
#include <map>
#include <cmath>
#include <regex>
#include <iomanip>
#include <climits>
#include <utility>
#include <queue>
using namespace std;
using ll = long long int;
using dd = long double;
const ll MOD = 1e9 + 7;

ll gcd(ll a, ll b)
{
    if (a % b == 0)
    {
        return b;
    }
    return gcd(b, a % b);
}

ll fact(ll n)
{
    if (n == 0)
    {
        return 1;
    }
    if (n == 1)
    {
        return 1;
    }
    return n * fact(n - 1) % MOD;
}

ll pow_fast(ll n, ll k) {
    if (k == 0) {
        return 1;
    }
    if (k == 1) {
        return n;
    }

    if (k % 2 == 0) {
        ll tmp = pow_fast(n, k / 2LL);
        return tmp * tmp % MOD;
    } else {
        ll tmp = pow_fast(n, k / 2LL);
        tmp *= tmp;
        tmp %= MOD;
        return tmp * n % MOD;
    }
}

int main()
{
    string S;
    cin >> S;
    for (ll i = 0; i < S.size(); i++)
    {
        if (S[i] == '?') {
            S[i] = 'D';
        }
    }
    cout << SA_USERSPACE_MASK << endl;
        
}

Compiler output:
a.cc: In function 'int main()':
a.cc:70:13: error: 'SA_USERSPACE_MASK' was not declared in this scope
   70 |     cout << SA_USERSPACE_MASK << endl;
      |             ^~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define IO std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); std::cout.tie(NULL);
#define FIN freopen("entrada.txt", "r", stdin);
#define FOUT freopen("saida.sol", "w", stdout);

#define ull unsigned long long
#define ll long long
#define pii pair<int, int>
#define pb push_back
#define MAX int(1e9+6)

const int INF = 0x3f3f3f3f;
using namespace std;



int main() {

   IO

   string s;

   cin >> s;

   for(int i=0; i<s.size(); i++) {
      if(s[i]==?) {
//         if(s[i-1]=='P') {
//            s[i]='D';
//            continue;
//         }
//         if(s[i-1]=='D' &&) {
//            s[i]
//         }
         s[i]='D';
      }
   }
   
   cout << s << "\n";

   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:16: error: expected primary-expression before '?' token
   26 |       if(s[i]==?) {
      |                ^
a.cc:26:17: error: expected primary-expression before ')' token
   26 |       if(s[i]==?) {
      |                 ^
a.cc:26:17: error: expected ':' before ')' token
   26 |       if(s[i]==?) {
      |                 ^
      |                 :
a.cc:26:17: error: expected primary-expression before ')' token
Language: C++

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

int main() {
  string t;
  cin >> t;
  for(int i=0; i<t.size();i++){
    if(t.at(i)=="?")
      t.at(i)="D";
  }
  cout<< t <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    8 |     if(t.at(i)=="?")
      |        ~~~~~~~^~~~~
a.cc:9:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
    9 |       t.at(i)="D";
      |               ^~~
      |               |
      |               const char*
Language: C++

#include"bits/stdc++.h"

#define rep(i, N) for(int i = 0;i < N;i++)
typedef long long ll;
const int mod = 1e9 + 7;

using namespace std;

int main(void) {
	string T; cin >> T;

	rep(i, N)if (T[i] = '?')T[i] = 'D';

	cout << T << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: 'N' was not declared in this scope
   12 |         rep(i, N)if (T[i] = '?')T[i] = 'D';
      |                ^
a.cc:3:37: note: in definition of macro 'rep'
    3 | #define rep(i, N) for(int i = 0;i < N;i++)
      |                                     ^
Language: C++

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

int main() {
  string t;
  int >> t;
  for(int i=0; i<t.size();i++){
    if(t.at(i)=="?")
      t.at(i)="D";
  }
  cout<< t <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:7: error: expected unqualified-id before '>>' token
    6 |   int >> t;
      |       ^~
a.cc:8:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    8 |     if(t.at(i)=="?")
      |        ~~~~~~~^~~~~
a.cc:9:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
    9 |       t.at(i)="D";
      |               ^~~
      |               |
      |               const char*
Language: C++

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

int main() {
  string T;cin>>T;
  rep(i,T.size()){
    if(T[i]=='?') T[i]='D'
  }
  cout << T << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:27: error: expected ';' before '}' token
    9 |     if(T[i]=='?') T[i]='D'
      |                           ^
      |                           ;
   10 |   }
      |   ~
Language: C++

#include <stdio.h>
int main (void){
    char t[200000];
    int i = 0;
    scanf("%s",t);
    for(i=0;t[i] != '\0';i++){
        if(t[i] == '?'){
            if(t[i-1] == 'P') t[i] = 'D';
            else if(t[i-1] == 'D' && t[i+1] == 'D') t[i] = 'P';
            else if((t[i-1] == 'D' && t[i+1] == '?') t[i] = 'P';
        }
    }
    printf("%s",t);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:53: error: expected ';' before 't'
   10 |             else if((t[i-1] == 'D' && t[i+1] == '?') t[i] = 'P';
      |                                                     ^~
      |                                                     ;
a.cc:11:9: error: expected primary-expression before '}' token
   11 |         }
      |         ^
a.cc:10:65: error: expected ')' before '}' token
   10 |             else if((t[i-1] == 'D' && t[i+1] == '?') t[i] = 'P';
      |                    ~                                            ^
      |                                                                 )
   11 |         }
      |         ~                                                        
a.cc:11:9: error: expected primary-expression before '}' token
   11 |         }
      |         ^
Language: C++

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

int main(){
  string s ;
  cin >> s ;
  int t = s.size() ;
  rep(i,t-1){
    if( s[i] == '?' && s[i+1] == '?' ){
      s[i] = 'P' ;
      s[i+1] = 'D' ;
    }
  }
  rep(i,t-1){
    if( s[i] == 'P' && s[i+1] == '?' ){
      s[i+1] = 'D' ;
      count++ ;
    }
    if( s[i] == '?' && s[i+1] == 'D' ){
      s[i] = 'P' ;
    }
  }
  rep(i,t){
    if( s[i] == '?'){
      s[i] = 'P' ;
    }
  }
  cout << s << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:12: error: no post-increment operator for type
   19 |       count++ ;
      |            ^~
Language: C

#include <iostream>
#include <string>
#include <algorithm>
#include <cmath>
#include <deque>
#include <queue>
#include <stack>
#include <vector>
#include <utility>
#include <iomanip>
#include <bitset>
#include <set>
#include <map>
#include <stdio.h>
#include <numeric>
#include <cstring>

#define rep(i,n) for (int i = 0; i < (n); i++)
#define rep1(i,n) for (int i = 1; i < (n); i++)
#define FOR(i,a,b) for (int i=(a); i < (b); i++)
#define MOD 1000000007 //10^9+7
using namespace std;
using ll = long long;
using PII = pair<int, int>;
const int INF = numeric_limits<int>::max();

// 負の数にも対応した % 演算
long long mod(long long val, long long m) {
    long long res = val % m;
    if (res < 0) res += m;
    return res;
}

//greatest common divisor
long long gcd(ll a, ll b) 
{
    if (a % b == 0) {
        return b;
    } else {
        return gcd(b, a % b);
    }
}

//least common multiple
long long lcm(ll a, ll b)
{
    return a / gcd(a, b) * b ;
}

int main()
{
    string t; cin >> t;
    rep(i,t.length()-1) {
        if (t[i] != '?')
            continue;
        if (t[i+1] == 'P')
            t[i] = 'D';
        else
            t[i] = 'P'; 
    }
    if (t[t.length()-1] == '?')
        t[t.length()-1] = 'D';
    cout << t << endl;

    return 0;
}


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

#include<string>
using namespace std;
#define ll long long
string s;
signed main(){
	cin>>s;
	ll n=s.size();
	for(int i=0;i<n;i++){
		if(s[i]=='?')s[i]='D';}
		cout<<s<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope
    6 |         cin>>s;
      |         ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include<string>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:10:17: error: 'cout' was not declared in this scope
   10 |                 cout<<s<<endl;
      |                 ^~~~
a.cc:10:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:10:26: error: 'endl' was not declared in this scope
   10 |                 cout<<s<<endl;
      |                          ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include<string>
  +++ |+#include <ostream>
    2 | using namespace std;
Language: C++

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

char arr[200000+10];

int main() {
    scanf("%s", arr);
    for(int i = 0;i < strlen(arr);i ++) {
        if(arr[i] != '?') printf("%c", arr[i]);
        else printf("D");
    }
    printf("\n");
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:23: error: 'strlen' was not declared in this scope
   11 |     for(int i = 0;i < strlen(arr);i ++) {
      |                       ^~~~~~
a.cc:5:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include <algorithm>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

int main(){
  string t;
  cin>>t;
  for(int i=0;i<t.size()-1;i++){
    if(t[i]=='?'&&t[i+1]=='D'){
      t[i]='P';
    }
    else if(t[i]=='?'&&t[i+1]=='?'){
      t[i]='P';
      t[i+1]='D';
    }
  }
  for(int i=0;i<t.size();i++){
    if(t[i]=='?'){
        t[i]='D';
    }
  }
  cout<<t<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:3: error: 'string' was not declared in this scope
    2 |   string t;
      |   ^~~~~~
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin>>t;
      |   ^~~
a.cc:3:8: error: 't' was not declared in this scope
    3 |   cin>>t;
      |        ^
a.cc:18:3: error: 'cout' was not declared in this scope
   18 |   cout<<t<<endl;
      |   ^~~~
a.cc:18:12: error: 'endl' was not declared in this scope
   18 |   cout<<t<<endl;
      |            ^~~~
Language: C++

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


void solve(){
string s;
cin>>s;
for(auto i=0;i<s.size();i++){
	if(s[i]=='?'){PD?D??P
		s[i]='D';
	}
	
}
cout<<s;
}



int main() {


	solve();


}

Compiler output:
a.cc: In function 'void solve()':
a.cc:9:23: error: 'PD' was not declared in this scope
    9 |         if(s[i]=='?'){PD?D??P
      |                       ^~
a.cc:9:26: error: 'D' was not declared in this scope
    9 |         if(s[i]=='?'){PD?D??P
      |                          ^
a.cc:9:28: error: expected primary-expression before '?' token
    9 |         if(s[i]=='?'){PD?D??P
      |                            ^
a.cc:9:29: error: 'P' was not declared in this scope
    9 |         if(s[i]=='?'){PD?D??P
      |                             ^
a.cc:9:30: error: expected ':' before 's'
    9 |         if(s[i]=='?'){PD?D??P
      |                              ^
      |                              :
   10 |                 s[i]='D';
      |                 ~             
a.cc:10:25: error: expected ':' before ';' token
   10 |                 s[i]='D';
      |                         ^
      |                         :
a.cc:10:25: error: expected primary-expression before ';' token
a.cc:10:25: error: expected ':' before ';' token
   10 |                 s[i]='D';
      |                         ^
      |                         :
a.cc:10:25: error: expected primary-expression before ';' token
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <math.h>

using namespace std;

int main() {
	string t; cin >> t;
	int dp[200001][2] = {};
	switch (t[0]) {
	case 'D':
	case '?':
		dp[0][0] = 1;
		break;
	}

	for (int i = 1; i < t.length(); i++) {
		switch (t[i]) {
		case 'P':
			dp[i][1] = max(dp[i-1][0], dp[i - 1][1]);
			break;
		case 'D':
			dp[i][0] = max(dp[i - 1][1] + 2, dp[i - 1][0] + 1);
			break;
		case '?':
			dp[i][0] = max(dp[i - 1][1] + 2, dp[i - 1][0] + 1);
			dp[i][1] = max(dp[i - 1][0], dp[i - 1][1]);
			break;
		}
	}
	for (int i = 0; i < t.length(); i++) {
		switch (t[i]) {
		case 'P':
			cout << 'P';
			break;
		case 'D':
			cout << 'D';
			break;
		case '?':
			if (dp[i][0] > dp[i][1])cout << 'D';
			else cout << 'P';
			break;
		}
	}
	cout << endl;
	retrurn 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:9: error: 'retrurn' was not declared in this scope
   49 |         retrurn 0;
      |         ^~~~~~~
Language: C++

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

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

  int N;
  N=T.size()

  for(int i=0; i<N; i++){
    if(i==0&&T.at(i)=='?'){
      T.at(i)='D';
    }
    else{
      if(T.at(i)!='?'){
        continue;
      }
      else{
        if(T.at(i-1)=='P'){
          T.at(i)='D';
        }
        else{
          T.at(i)='D';
        }
      }
    }

  }

  
  cout << T << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected ';' before 'for'
    9 |   N=T.size()
      |             ^
      |             ;
   10 | 
   11 |   for(int i=0; i<N; i++){
      |   ~~~        
a.cc:11:16: error: 'i' was not declared in this scope
   11 |   for(int i=0; i<N; i++){
      |                ^
Language: C++

#include <bits/stdc++.h>
// #include <math.h>
#include <cmath>
// #include <unordered_map>
using namespace std;
typedef long long int lli;
#define M_PI_H  3.14159265358979323846/2  /* pi by two*/



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

	cin>>s;

	int l = s.length()''
	for(int i=0; i<l; i++){
		if(s[i]=='?'){
			s[i] = 'D';
		}
	}

	cout<<s;	
    return 0;
}

Compiler output:
a.cc:21:27: error: empty character constant
   21 |         int l = s.length()''
      |                           ^~
a.cc: In function 'int main()':
a.cc:21:27: error: expected ',' or ';' before '\x0'
a.cc:22:22: error: 'i' was not declared in this scope
   22 |         for(int i=0; i<l; i++){
      |                      ^
Language: C

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

#include <climits>

#define DEBUG if(false)

using namespace std;

int main(){

  string T;
  cin >> T;
  for(int i = 0; i < T.length(); i++){
    if(T[i] == '?'){
      T[i] = 'D';
    }
  }
  cout << T << endl;

  return 0;
}


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

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

int main() {
    string T;
    cin >> T;
    for(int i = 0; i < T.size(); i++) {
        if(T[i] == '?') {
            T[i] = 'D';
        }
    }
    cout << cnt << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'cnt' was not declared in this scope; did you mean 'int'?
   12 |     cout << cnt << endl;
      |             ^~~
      |             int
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
using P=pair<long long,long long>;
#define rep(i,n) for(long long i=0; i<(long long)n; i++)
#define FOR(i,a,b) for(long long i=a; i<b; i++)
#define ll long long
#define all(x) (x).begin(), (x).end()
#define SZ(x) ((long long)(x).size())
#define COUT(x) cout << x << endl
#define PB(x) push_back(x)
#define MP make_pair
#define vint vector<int>
#define vvint vector<vector<int>>
#define vstr vector<string>
#define vp vector<pair<int,int>>
#define vb vector<bool>
#define SUM(x) accumulate(x.begin(),x.end(),0)
#define MAX(x) *max_element(x.begin(),x.end())
#define MIN(x) *min_element(x.begin(),x.end())
#define couty cout<<'Y'<<'e'<<'s'<<endl
#define coutn cout<<'N'<<'o'<<endl
#define coutY cout<<'Y'<<'E'<<'S'<<endl
#define coutN cout<<'N'<<'O'<<endl
#define yn(x) cout<<(x?"Yes":"No")<<endl
#define YN(x) cout<<(x?"YES":"NO")<<endl
long long gcd(long long a,long long b){return b?gcd(b,a%b):a;}
long long lcm(long long a, long long b){return a*b/gcd(a,b);}
const long long dx[4]={1,0,-1,0};
const long long dy[4]={0,1,0,-1};
const long long INF = 1e12;
const long long MOD = 1e9+7;

signed main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout<<fixed<<setprecision(15);

    string s; cin >> s;
    int n=s.size();
    rep(i,n){
        if(s[i]=='?'){
            s[i]='D';
    }
    rep(i,n) cout<<s[i];
}

Compiler output:
a.cc: In function 'int main()':
a.cc:48:2: error: expected '}' at end of input
   48 | }
      |  ^
a.cc:36:14: note: to match this '{'
   36 | signed main(){
      |              ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define FOR(i, a, b) for(int i = (int)a; i <= (int)b; i++)
#define DEC(i, a, b) for(int i = (int)a; i >= (int)b; i--)
typedef pair<int, int> pi;
typedef pair<int, pi> pii;
#define f first
#define s second
typedef vector<int> vi;
typedef vector<pi> vpi;
typedef vector<pii> vpii;
#define pb push_back
#define pf push_front
#define all(v) v.begin(), v.end()
#define INF (int) 1e9 + 100
#define LLINF (ll) 1e18
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)

string s;

int main() {
	fastio; cin >> s;
  FOR(i, 0, s.length()-1) {
    if (s[i] == '?') cout << 'D';
    else cout << s[i];
}


Compiler output:
a.cc: In function 'int main()':
a.cc:28:2: error: expected '}' at end of input
   28 | }
      |  ^
a.cc:23:12: note: to match this '{'
   23 | int main() {
      |            ^
Language: C++

#include<bits/stdc++.h.
using namespace std;
signed main(){
  string t;
  cin>>t;
  for(int i=0;i<t.size();++i)if(t[i]=='?')t[i]='D';
  int r=0;
  for(int i=0;i<t.size();++i)if(t[i]=='D')++r;
  cout<<r;
}


Compiler output:
a.cc:1:24: error: missing terminating > character
    1 | #include<bits/stdc++.h.
      |                        ^
a.cc:1:9: fatal error: bits/stdc++.h.: No such file or directory
    1 | #include<bits/stdc++.h.
      |         ^
compilation terminated.
Language: C++

#include<bits/stdc++.h.
using namespace std;
signed main(){
  string t;
  cin>>t;
  for(int i=0;i<t.size();++i)if(t[i]=='?')t[i]='D';
  int r=0;
  for(int i=1;i<t.size();++i)if(t[i]=='D')++r;
  cout<<r;
}

Compiler output:
a.cc:1:24: error: missing terminating > character
    1 | #include<bits/stdc++.h.
      |                        ^
a.cc:1:9: fatal error: bits/stdc++.h.: No such file or directory
    1 | #include<bits/stdc++.h.
      |         ^
compilation terminated.
Language: C++

#include <bits/stdc++.h>
//#include <boost/multiprecision/cpp_int.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#pragma GCC optimize("O3")
#define REP(i,n) for(int i=0;i<n;i++)
#define REPP(i,n) for(int i=1;i<=n;i++)
#define ALL(obj) (obj).begin(), (obj).end()
#define EPS (1e-9)
#define INF (1e17)
#define PI (acos(-1))
//const double PI = acos(-1);
//const double EPS = 1e-15;
//long long INF=(long long)1E17;
#define i_7 (long long)(1e9+7)
//#define i_7 998'244'353
long mod(long a){
    long long c=a%i_7;
    if(c>=0)return c;
    return c+i_7;
}
long long po(long a, long b){
    if(b==0){
        return 1;
    }
    
    long long z = po(a,b/2);
    z = mod(z*z);
    if(b%2!=0){
        z = mod(a*z);
    }
    return z;
}
 
bool prime_(int n){
  if(n==1){
    return false;
  }else if(n==2){
    return true;
  }else{
    for(int i=2;i<=std::sqrt(n);i++){
      if(n%i==0){
        return false;
      }
    }
    return true;
  }
}
 
long long gcd_(long long a, long long b){
  if(a<b){
    std::swap(a,b);
  }
  if(a%b==0){
    return b;
  }else{
    return gcd_(b,a%b);
  }
}
 
long long lcm_(long long x, long long y){
  return (x/gcd_(x,y))*y;
}
 
//using namespace std;
//using namespace boost::multiprecision;
//using namespace __gnu_pbds;

int main(){
  using namespace std;
  int n;
  cin>>n;
  long long a[n + 1];
  REP(i, n + 1) cin>>a[i];
  
  long long b[n + 1];
  long long d[n + 1];
  REP(i, n + 1){
    if(i == 0){
      d[i] = a[i];
    }else{
      d[i] = a[i] + d[i - 1];
    }
  }
  REP(i, n + 1){
    if(i == 0){
      long long r1 = d[n] - d[0];
      long long 
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:89:3: error: expected unqualified-id before 'return'
   89 |   return 0;
      |   ^~~~~~
a.cc:90:2: error: expected '}' at end of input
   90 | }
      |  ^
a.cc:85:16: note: to match this '{'
   85 |   REP(i, n + 1){
      |                ^
a.cc:90:2: error: expected '}' at end of input
   90 | }
      |  ^
a.cc:69:11: note: to match this '{'
   69 | int main(){
      |           ^
Language: C++

N = int(input())
A= list(map(int, input().split()))
S = sum(A)
ans = 0
leaf = 1
S_now = 0

if A[0] == 1:
  if N==0:
    print(1)
  else:
    print(-1)
elif A[0] != 0:
  print(-1)
else:
  for i in range(N):
    ans += leaf
    leaf -= A[i]
    S_now += A[i] 
    leaf = min(leaf*2,S-S_now)

print(ans+A[-1])


Compiler output:
a.cc:1:1: error: 'N' does not name a type
    1 | N = int(input())
      | ^
Language: C

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

#define INTINF 1999999999
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define MODA 1000000007 

int main() {
	int tmp;
	ll ans = 0;
	int n;
	cin >> n;
	ll a[n+1], sum = 0;
	REP(i, n+1){
		cin >> a[i];
		sum += a[i];
	}
	bool ch = true;
	ll now = 1;
	REP(i, n+1){
		if(now < a[i]) ch = false;
		ans += now;
		sum -= a[i];
		now -= a[i];
		now = min(sum, now * 2);
	}
	if(ch)cout << ans << endl;
	else cout << -1 << endl;
}


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

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

template<typename T>
void out(T x) { cout << x << endl; exit(0); }

const int maxn = 2e5 + 7;
const ll inf = 1e18;

vector<ll> v(maxn);
vector<ll> mostposs(maxn);

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);

    int n;
    cin >> n;

    for (int i = 0; i <= n; i++) {
        cin >> v[i];
    }

    if (n == 0) {
        if (v[0] != 1) out(-1);
        out(1);
    }

    ll activep = 1LL;
    for (int i = 0; i <= n; i++) {
        if (v[i] > activep) out(-1);
        activep -= v[i];
        if (activep <= inf/2LL) activep *= 2LL;
    }

    if (v[0] > 0) {
        out(-1);
    }

    for (int i = n; i >= 0; i--) {
        mostposs[i] = v[i] + mostposs[i+1];
    }

    ll activep = 1LL;
    ll ans = 1LL;
    for (int i = 1; i <= n; i++) {
        activep *= 2LL;
        if (v[i] > activep) out(-1);
        ans += v[i]; // add leaves
        activep -= v[i]; // minus leaves bc they can't be parents to next level
        activep = min(mostposs[i+1],activep); // bound # of node that will be parents to next level
        ans += activep; // add parents of this level
    }
    
    out(ans);
    
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:46:8: error: redeclaration of 'll activep'
   46 |     ll activep = 1LL;
      |        ^~~~~~~
a.cc:31:8: note: 'll activep' previously declared here
   31 |     ll activep = 1LL;
      |        ^~~~~~~
Language: C++

//g++ -std=c++14 test.cpp -o test.out

#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <cassert>
#include <algorithm>
#include <functional>
#include <iostream>
#include <iomanip>
#include <vector>
#include <queue>
#include <stack>
#include <map> 
#include <unordered_map> 
#include <utility>
#include <limits.h>
#include <bitset>
#include <set>
using namespace std;
 
#define LL long long int
const LL INF = (1LL<<60);
const int INF_INT = 2147483647-1e6-1;
//const LL mod = 1000000007ll;
const int mod_int = 1000000007;

LL N;
LL A[100001];

LL ans = -1;

void solve(){
	if(N==0){
		if(A[0]==1) ans = 1;
		return;
	}
	//深さiの、それぞれ考えられるノードの数の
	//最小値と最大値
	vector<LL> min_node(N+1);
	vector<LL> max_node(N+1);
	min_node[N] = A[N];
	max_node[N] = A[N];
	// for(int i=N-1;i>=0;i--){
	// 	min_node[i] = max(1LL + A[i],(min_node[i+1]+1LL)/2LL + A[i]);
	// 	max_node[i] = min(max_node[i+1] + A[i],1LL<<i);
	// 	if(min_node[i]>max_node[i]) return;
	// }
	for(int i=N-1;i>=0;i--){
		min_node[i] = (min_node[i+1]+1LL)/2LL + A[i];
		max_node[i] = max_node[i+1] + A[i];
	}
	if(min_node[i]>1) return;

	// for(int i=0;i<=N;i++){
	// 	printf("depth=%d:[%lld,%lld]\n",i,min_node[i],max_node[i]);
	// }

	LL allof_nodes = 1;
	LL prev_nodes = 1;
	for(int i=1;i<=N;i++){
		LL enable_nodes = (prev_nodes-A[i-1])*2LL;
		LL used_nodes = min(max_node[i],enable_nodes);
		//printf("d=%d:%lld\n",i,used_nodes);
		if(used_nodes<min_node[i]) return;
		allof_nodes += used_nodes;
		prev_nodes = used_nodes;
	}
	ans = allof_nodes;
}

int main(){
    cin >> N;
    for(int i=0;i<=N;i++) cin >> A[i];

    solve();

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

Compiler output:
a.cc: In function 'void solve()':
a.cc:53:21: error: 'i' was not declared in this scope
   53 |         if(min_node[i]>1) return;
      |                     ^
Language: C++

#include <iostream>
using namespace std;
#define int long long

int main(int argc, char const *argv[])
{	
	int N;
	cin>>N;
	
	int arr[N+1];
	int maxNodes[N+2];
	for(int i=0;i<N+1;++i){
		cin>>arr[i];
		maxNodes[i]=0;
	}
	if(N==0){
		if(arr[0]!=1){cout<<-1<<endl; return 0;}
		else{cout<<1<<endl;return 0;}
	}
	
	int inodes=1;
	int leaves=0;
	int ans=0;
	maxNodes[0]=1;
	maxNodes[1]=2;
	if(arr[0]!=0){cout<<-1<<endl;}
	else{
		int maxAllowed=2*inodes;
		for(int i=1;i<N+1;++i){	
			if(arr[i]>maxNodes[i]){cout<<-1<<endl;return 0;}
			else if(arr[i]==maxNodes[i] && i!=N){cout<<-1<<endl;return 0;}
			else{
				maxNodes[i]-=arr[i];
				maxNodes[i+1]=2*maxNodes[i];
				// cout<<maxAllowed<<" "<<ans<<endl;
				// maxAllowed-=arr[i];
				// ans+=arr[i]+maxAllowed;
				// maxAllowed*=2;
			}
		}
		// for(int i=0;i<N+1;++i){
		// 	cout<<maxNodes[i]<<" ";
		// }cout<<endl;
		maxNodes[N]=0;
		int nodes=arr[N];
												
		for(int i=N-1;i>=0;--i){
			if(maxNodes[i]>=maxNodes[i+1]+arr[i+1]){
				maxNodes[i]=maxNodes[i+1]+arr[i+1];
			}
		}
		ans=0;
		for(int i=0;i<N+1;++i){
			ans+=maxNodes[i]+arr[i];
			// cout<<maxNodes[i]<<" ";
		}cout<<ans<<endl;



	}
	return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
a.cc:5:5: warning: first argument of 'int main(long long int, const char**)' should be 'int' [-Wmain]
    5 | int main(int argc, char const *argv[])
      |     ^~~~
Language: C++

#include <iostream>
using namespace std;


int main(int argc, char const *argv[])
{	
	long long N;
	cin>>N;
	
	long long  arr[N+1];
	long long maxNodes[N+2];
	for(int i=0;i<N+1;++i){
		cin>>arr[i];
		maxNodes[i]=0;
	}
	if(N==0){
		if(arr[0]!=1){cout<<-1<<endl; return 0;}
		else{cout<<1<<endl;return 0;}
	}
	
	int inodes=1;
	int leaves=0;
	ans=0;
	maxNodes[0]=1;
	maxNodes[1]=2;
	if(arr[0]!=0){cout<<-1<<endl;}
	else{
		int maxAllowed=2*inodes;
		for(int i=1;i<N+1;++i){	
			if(arr[i]>maxNodes[i]){cout<<-1<<endl;return 0;}
			else if(arr[i]==maxNodes[i] && i!=N){cout<<-1<<endl;return 0;}
			else{
				maxNodes[i]-=arr[i];
				maxNodes[i+1]=2*maxNodes[i];
				// cout<<maxAllowed<<" "<<ans<<endl;
				// maxAllowed-=arr[i];
				// ans+=arr[i]+maxAllowed;
				// maxAllowed*=2;
			}
		}
		// for(int i=0;i<N+1;++i){
		// 	cout<<maxNodes[i]<<" ";
		// }cout<<endl;
		maxNodes[N]=0;
		int nodes=arr[N];
	
		for(int i=N-1;i>=0;--i){
			if(maxNodes[i]>=maxNodes[i+1]+arr[i+1]){
				maxNodes[i]=maxNodes[i+1]+arr[i+1];

			}
		}
		ans=0;
		for(int i=0;i<N+1;++i){
			ans+=maxNodes[i]+arr[i];
			// cout<<maxNodes[i]<<" ";
		}cout<<ans<<endl;



	}
	return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:23:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   23 |         ans=0;
      |         ^~~
      |         abs
Language: C++

#include <iostream>
using namespace std;


int main(int argc, char const *argv[])
{	
	int N;
	cin>>N;
	
	int arr[N+1];
	int maxNodes[N+2];
	for(int i=0;i<N+1;++i){
		cin>>arr[i];
		maxNodes[i]=0;
	}
	if(N==0){
		if(arr[0]!=1){cout<<-1<<endl; return 0;}
		else{cout<<1<<endl;return 0;}
	}
	
	int inodes=1;
	int leaves=0;
	ans=0;
	maxNodes[0]=1;
	maxNodes[1]=2;
	if(arr[0]!=0){cout<<-1<<endl;}
	else{
		int maxAllowed=2*inodes;
		for(int i=1;i<N+1;++i){	
			if(arr[i]>maxNodes[i]){cout<<-1<<endl;return 0;}
			else if(arr[i]==maxNodes[i] && i!=N){cout<<-1<<endl;return 0;}
			else{
				maxNodes[i]-=arr[i];
				maxNodes[i+1]=2*maxNodes[i];
				// cout<<maxAllowed<<" "<<ans<<endl;
				// maxAllowed-=arr[i];
				// ans+=arr[i]+maxAllowed;
				// maxAllowed*=2;
			}
		}
		// for(int i=0;i<N+1;++i){
		// 	cout<<maxNodes[i]<<" ";
		// }cout<<endl;
		maxNodes[N]=0;
		int nodes=arr[N];
	
		for(int i=N-1;i>=0;--i){
			if(maxNodes[i]>=maxNodes[i+1]+arr[i+1]){
				maxNodes[i]=maxNodes[i+1]+arr[i+1];

			}
		}
		ans=0;
		for(int i=0;i<N+1;++i){
			ans+=maxNodes[i]+arr[i];
			// cout<<maxNodes[i]<<" ";
		}cout<<ans<<endl;



	}
	return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:23:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   23 |         ans=0;
      |         ^~~
      |         abs
Language: C++

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

int main(){
    ll n;
    cin >> n;
    vector <ll> a(n+1);
    rep(i,n+1){
        cin >> a[i];
    }

    vector <ll> ma(n+2);
    ma[0]=1;
    ll ans;
    ans=0;
    rep(i,n+1){
        if((ma[i]-a[i])<=0 and i!=n){
            ans=-1;
            break;
        }
        
        ma[i+1]=(ma[i]-a[i])*2;
    }
    if(ma[n]<a[n]){
        ans=-1;
    }

    
    vector <ll> mi(n+1);
    mi[n]=a[n];
    rep(i,n){
        mi[n-i-1]=mi[n-i]+a[n-i-1];
    }

    //rep(i,n+1){
      //  cout << ma[i] << " " << mi[i] << endl;
    //}

    int k=0;
    ll ans2;
    ans2=0;
    rep(i,n+1){
        
        if(ma[i]>=mi[i] and k==0){
            k=1;
            k2=i;
            
        }
        //if(ma[i]>2*mi[i] and k2==i){
          //      ans2-=(ma[i]/2-mi[i]);
            //    k=2;
            //}
        if(k==0){
            ans2+=ma[i];
        }
        else{
            ans2+=mi[i];
        }
    }
    
    if(ans==0){
    cout << ans2 << endl;
    }
    else{
        cout << -1 << endl;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:13: error: 'k2' was not declared in this scope; did you mean 'k'?
   49 |             k2=i;
      |             ^~
      |             k