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

    #include <iostream>
    #include <vector>
    #include <algorithm>
    #include <string>     
    using namespace std;
     
    int main() {
      int n,k;
      cin >> n >> k;
        
      // sc: layer num
      int sc=1;
      for(int i=0;i<n;i++){
        sc = 2*sc+3;
      }
      
      // pn: paty num
      vector<int> vec(n);
      int pn=1;
      for(int i=0;i<n;i++){
        pn = 2*pn+1;
        vec[i] = pn;
      }      
      
      
      int sf=1;
      int hkf=sc/2+1
      int sb=hkf+1;
      
      int ans = 0;
      
      // nf: all layer
      // kf: eat layer
      int func(int nf, int kf){
        int hkf = sc/2+1;
        if(kf==sc){
          return ans+vec[nf-1];
        } else if (kf==sf) {
          return ans;
        } else if (kf==hkf) {
          return ans+vec[nf-2]+1
        } else if (sf<kf && hkf>kf){
          if(nf==0){
            return ans+1;
          }
          sf=sf+1;
          sc=hkf-1;
          sb=sc/2+2;
          func(nf-1,kf);
        } else if (sb<kf && sc>kf){
          ans += vec[nf-2]+1;
          if(nf==0){
            return ans+1;
          }
          sf=sf+1;
          sc=hkf-1;
          sb=sc/2+2;
          kf=kf-hkf;
          func(nf-1,kf);
        }
        
        cout << func(n,k) <<endl;
        return 0;
      }


Compiler output:
a.cc: In function 'int main()':
a.cc:28:7: error: expected ',' or ';' before 'int'
   28 |       int sb=hkf+1;
      |       ^~~
a.cc:34:31: error: a function-definition is not allowed here before '{' token
   34 |       int func(int nf, int kf){
      |                               ^
a.cc:64:8: error: expected '}' at end of input
   64 |       }
      |        ^
a.cc:7:16: note: to match this '{'
    7 |     int main() {
      |                ^
Language: C++

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

int main() {
  int n,k;
  cin >> n >> k;
  
  int 
  
  int func(int nf, int kf){
    if 
    
    
    if(le == 2){
      
      return ke;
    }        
              if(le < ke){
                ke = ke - le;
                v.push_back(cnt)
                cnt = 0;
              }
              le = (le-3)/2 + 1; 
              cnt += 1;
              func(le,ke);
            }
  
  
  
}
     
    		vector<int> v;
    		int cnt=0;
     
    		int func(int le, int ke){
              if(le == 2){
                return ke;
              }        
              if(le < ke){
                ke = ke - le;
                v.push_back(cnt)
                cnt = 0;
              }
              le = (le-3)/2 + 1; 
              cnt += 1;
              func(le,ke);
            }
             
            int main() {
              int n,k;
              cin >> n >> k;
              
              int sc=1;
              for(int i=0;i<n;i++){
                sc = 2*sc+3;
              }          
              int hsc = sc/2+1;
              if(k<hsc){
                for(int i=0;i<n;i++){
                  
                }
              }
              ;
              
              std::string sb="P";
              int hk = k/2;
              
              for(int i=0;i<n;i++){
                sb = "B"+sb+"P"+sb+"B";
              }
     
              int cnt=0;
              /*
              for(int i=0;i<k;i++){
                if(sb[i]=='P'){
                  cnt += 1;
                }
              }
              */
              cout << cnt << endl;
              return 0;
            }

Compiler output:
a.cc: In function 'int main()':
a.cc:13:27: error: a function-definition is not allowed here before '{' token
   13 |   int func(int nf, int kf){
      |                           ^
a.cc: In function 'int func(int, int)':
a.cc:44:33: error: expected ';' before 'cnt'
   44 |                 v.push_back(cnt)
      |                                 ^
      |                                 ;
   45 |                 cnt = 0;
      |                 ~~~              
a.cc: At global scope:
a.cc:52:17: error: redefinition of 'int main()'
   52 |             int main() {
      |                 ^~~~
a.cc:7:5: note: 'int main()' previously defined here
    7 | int main() {
      |     ^~~~
a.cc: In function 'int func(int, int)':
a.cc:49:19: warning: control reaches end of non-void function [-Wreturn-type]
   49 |               func(le,ke);
      |               ~~~~^~~~~~~
Language: C++

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

        using namespace std;

		vector<int> v;
		int cnt=0;

		int func(int le, int ke){
          if(le == 2){
            return ke;
          }        
          if(le < ke){
            ke = ke - le;
            v.push_back(cnt)
            cnt = 0;
          }
          le = (le-3)/2 + 1; 
          cnt += 1;
          func(le,ke);
        }
         
        int main() {
          int n,k;
          cin >> n >> k;
          
          int sc=1;
          for(int i=0;i<n;i++){
            sc = 2*sc+3;
          }          
          int hsc = sc/2+1;
          if(k<hsc){
            for(int i=0;i<n;i++){
              
            }
          }
          ;
          
          std::string sb="P";
          int hk = k/2;
          
          for(int i=0;i<n;i++){
            sb = "B"+sb+"P"+sb+"B";
          }

          int cnt=0;
          /*
          for(int i=0;i<k;i++){
            if(sb[i]=='P'){
              cnt += 1;
            }
          }
          */
          cout << cnt << endl;
          return 0;
        }

Compiler output:
a.cc: In function 'int func(int, int)':
a.cc:17:29: error: expected ';' before 'cnt'
   17 |             v.push_back(cnt)
      |                             ^
      |                             ;
   18 |             cnt = 0;
      |             ~~~              
a.cc:22:15: warning: control reaches end of non-void function [-Wreturn-type]
   22 |           func(le,ke);
      |           ~~~~^~~~~~~
Language: C++

n=io.read("n")
x=io.read("n")
f={0}
for i=1,n do
	w={}
	table.insert(w,1)
	for i=1,#f do
		table.insert(w,f[i])
	end
	table.insert(w,0)
	for i=1,#f do
		table.insert(w,f[i])
	end
	table.insert(w,1)
	f=w
end
s=0
for i=1,x do
	if w[i]==0 then
		s=s+1
	end
end
print(s)


Compiler output:
a.cc:7:17: error: stray '#' in program
    7 |         for i=1,#f do
      |                 ^
a.cc:11:17: error: stray '#' in program
   11 |         for i=1,#f do
      |                 ^
a.cc:1:1: error: 'n' does not name a type
    1 | n=io.read("n")
      | ^
a.cc:4:1: error: expected unqualified-id before 'for'
    4 | for i=1,n do
      | ^~~
a.cc:6:9: error: 'table' does not name a type; did you mean 'mutable'?
    6 |         table.insert(w,1)
      |         ^~~~~
      |         mutable
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<string>
#include<iomanip>
using namespace std;
#define ll long long;
#define MM = 1000000000;
#define mod = MM + 7;
#define INF (ll)1e18
#define pi acos(-1.0)
#define MAX 1000000005
#define NIL -1
long long func(int n, long long x){
    if(n == 0){
        return 0;
    } else if(x == 1){
        return 0;
    } else if(1 < x && x < pow(2, 1+n) - 1){
        return func(n-1, x-1);
    } else if(x == pow(2, 1+n) -1){
        return func(n-1, x-1) + 1;
    } else if(x > pow(2, 1+n) - 1){
        return func(n-1, x-pow(2, 1+n) -1) + pow(2, n);
    }
}

int main(){
    int N; long long X; cin >> N >> X;
    cout << func(N, X) << endl;
}

Compiler output:
a.cc: In function 'long long int func(int, long long int)':
a.cc:19:28: error: 'pow' was not declared in this scope
   19 |     } else if(1 < x && x < pow(2, 1+n) - 1){
      |                            ^~~
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<string>
#include<iomanip>
using namespace std;
#define ll long long;
#define MM = 1000000000;
#define mod = MM + 7;
#define INF (ll)1e18
#define pi acos(-1.0)
#define MAX 1000000005
#define NIL -1
long long func(int n, long long x){
    if(n == 0){
        return 0;
    } else if(x == 1){
        return 0;
    } else if(1 < x && x < pow(2, 1+n) - 1){
        return func(n-1, x-1);
    } else if(x == pow(2, 1+n) -1){
        return func(n-1, x-1) + 1;
    } else if(x > pow(2, 1+n) - 1){
        return func(n-1, x-pow(2, 1+n) -1) + pow(2, n);
    }
}

int main(){
    ll N, X; cin >> N >> X;
    cout << func(N, X) << endl;
}

Compiler output:
a.cc: In function 'long long int func(int, long long int)':
a.cc:19:28: error: 'pow' was not declared in this scope
   19 |     } else if(1 < x && x < pow(2, 1+n) - 1){
      |                            ^~~
a.cc: In function 'int main()':
a.cc:7:17: error: declaration does not declare anything [-fpermissive]
    7 | #define ll long long;
      |                 ^~~~
a.cc:29:5: note: in expansion of macro 'll'
   29 |     ll N, X; cin >> N >> X;
      |     ^~
a.cc:29:8: error: 'N' was not declared in this scope
   29 |     ll N, X; cin >> N >> X;
      |        ^
a.cc:29:11: error: 'X' was not declared in this scope
   29 |     ll N, X; cin >> N >> X;
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define MM 1000000000;
#define mod MM + 7;
#define INF (ll)1e18
#define pi acos(-1.0)
#define MAX 100005

vector<int> Layer(int i){ //pは1、bは2
    vector<int> v[i];
    if(i == 0){
        v[i].push_back(1);
    } else {
        for(int j = 0; j < i; j++){
            v[i].push_back(2);
            for(int j = 0; j < v[i-1].size(); j++){
                v[i].push_back(v[i-1][j]);
            }
            v[i].push_back(1);
            for(int j = 0; j < v[i-1].size(); j++){
                v[i].push_back(v[i-1][j]);
            }
            v[i].push_back(2);
        }
    }
    return v[i];
}

int main(){
    int n; cin >> n;
    int x; cin >> x;
    int cnt = 0;
    vector<int> s = Layer(n);
    for(int i = 0; i < x; i++){
        if(v[i] == 1){
            cnt++;
        }
    }
    cout << cnt << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:12: error: 'v' was not declared in this scope
   36 |         if(v[i] == 1){
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define MM 1000000000;
#define mod MM + 7;
#define INF (ll)1e18
#define pi acos(-1.0)
#define MAX 100005

int Layer(int i){ //pは1、bは2
    vector<int> v[i];
    if(i == 0){
        v[i].push_back(1);
    } else {
        for(int j = 0; j < i; j++){
            v[i].push_back(2);
            for(int j = 0; j < v[i-1].size(); j++){
                v[i].push_back(v[i-1][j]);
            }
            v[i].push_back(1);
            for(int j = 0; j < v[i-1].size(); j++){
                v[i].push_back(v[i-1][j]);
            }
            v[i].push_back(2);
        }
    }
    return v[i];
}

int main(){
    int n; cin >> n;
    int x; cin >> x;
    int cnt = 0;
    vector<int> s = Layer(n);
    for(int i = 0; i < x; i++){
        if(v[i] == 1){
            cnt++;
        }
    }
    cout << cnt << endl;
}

Compiler output:
a.cc: In function 'int Layer(int)':
a.cc:27:15: error: cannot convert 'std::vector<int>' to 'int' in return
   27 |     return v[i];
      |            ~~~^
      |               |
      |               std::vector<int>
a.cc: In function 'int main()':
a.cc:34:26: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
   34 |     vector<int> s = Layer(n);
      |                     ~~~~~^~~
a.cc:36:12: error: 'v' was not declared in this scope
   36 |         if(v[i] == 1){
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define MM 1000000000;
#define mod MM + 7;
#define INF (ll)1e18
#define pi acos(-1.0)
#define MAX 100005

int Layer(int i){ //pは1、bは2
    vector<int> v[i];
    if(i == 0){
        v[i].push_back(1);
    } else {
        for(int j = 0; j < i; j++){
            v[i].push_back(2);
            v[i] += v[i-1];
            v[i].push_back(1);
            v[i] += v[i-1];
            v[i].push_back(2);
        }
    }
    return v[i];
}

int main(){
    int n; cin >> n;
    int x; cin >> x;
    int cnt = 0;
    vector<int> s = Layer(n);
    for(int i = 0; i < x; i++){
        if(v[i] == 1){
            cnt++;
        }
    }
    cout << cnt << endl;
}

Compiler output:
a.cc: In function 'int Layer(int)':
a.cc:17:18: error: no match for 'operator+=' (operand types are 'std::vector<int>' and 'std::vector<int>')
   17 |             v[i] += v[i-1];
      |             ~~~~~^~~~~~~~~
a.cc:19:18: error: no match for 'operator+=' (operand types are 'std::vector<int>' and 'std::vector<int>')
   19 |             v[i] += v[i-1];
      |             ~~~~~^~~~~~~~~
a.cc:23:15: error: cannot convert 'std::vector<int>' to 'int' in return
   23 |     return v[i];
      |            ~~~^
      |               |
      |               std::vector<int>
a.cc: In function 'int main()':
a.cc:30:26: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
   30 |     vector<int> s = Layer(n);
      |                     ~~~~~^~~
a.cc:32:12: error: 'v' was not declared in this scope
   32 |         if(v[i] == 1){
      |            ^
Language: C++

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

int main()
{
  int N, index;
  unsigned long X;
  long pnum = 0;
  
  cin >> N >> X;
  vector<long> p(N+1);
  vector<long> s(N+1);
  p[0] = 1;
  s[0] = 1;
  for(int i = 1; i <= N; i++){
    p[i] = 1 + 2*p[i-1];
    s[i] = 3 + 2*s[i-1];
  }
  index =  X;
  int i;
  for(i = N; i > 0; i--){
    if(index == 2+s[i-1]){
      pnum += p[i-1]+1;
      break;
    }
    else if(index == 1){
      break;
    }
    else if(index == 3+2*s[i-1]){
      pnum += 2*p[i-1]+1;
      break;
    }
    else if(index < 2+s[i-1]){
      index -= 1;
      if(i == 1){
      	pnum++;
      	break;
      }
      continue;
    }
    else if(index < 3 + 2*s[i-1]){
      if(i == 1){
        pnum += 3;
        break;
      }
      pnum++;
      index -= 2+2*p[i-1];
      continue;
    }
    cout << pnum << endl;
   
}

Compiler output:
a.cc: In function 'int main()':
a.cc:53:2: error: expected '}' at end of input
   53 | }
      |  ^
a.cc:6:1: note: to match this '{'
    6 | {
      | ^
Language: C++

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

int main()
{
  int N, index;
  unsigned long X;
  long pnum = 0;
  
  cin >> N >> X;
  vector<long> p(N+1);
  vecotr<long> s(N+1);
  p[0] = 1;
  s[0] = 1;
  for(int i = 1; i <= N; i++){
    p[i] = 1 + 2*p[i-1];
    s[i] = 3 + 2*s[i-1];
  }
  index =  X;
  int i;
  for(i = N; i > 0; i--){
    if(index == 2+s[i-1]){
      pnum += p[i-1]+1;
      break;
    }
    else if(index == 1){
      break;
    }
    else if(index == 3+2*s[i-1]){
      pnum += 2*p[i-1]+1;
      break;
    }
    else if(index < 2+s[i-1]){
      index -= 1;
      if(i == 1){
      	pnum++;
      	break;
      }
      continue;
    }
    else if(index < 3 + 2*s[i-1]){
      if(i == 1){
        pnum += 3;
        break;
      }
      pnum++;
      index -= 2+2*p[i-1];
      continue;
    }
    cout << pnum << endl;
   
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'vecotr' was not declared in this scope
   13 |   vecotr<long> s(N+1);
      |   ^~~~~~
a.cc:13:10: error: expected primary-expression before 'long'
   13 |   vecotr<long> s(N+1);
      |          ^~~~
a.cc:15:3: error: 's' was not declared in this scope
   15 |   s[0] = 1;
      |   ^
a.cc:53:2: error: expected '}' at end of input
   53 | }
      |  ^
a.cc:6:1: note: to match this '{'
    6 | {
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int N, X;
vector<int> l(N),p(N);

int func(int N, int X){
  	if(N==0){
      	if(X==0){
         	return 0; 
        }
      	else{
         	return 1; 
        }
    }
 	else if(X <= l.at(N-1)+1){
     	return func(N-1, X-1); 
    }
  	else{
     	return p.at(N-1) + func(N-1, X-l(N-1)-2)+1; 
    }
  
}

int main(){
 	//int N, X;
  	cin >> N >> X;
  	//vector<int> l(N),p(N);
  	l.at(0)=1;
  	p.at(0)=1;
  	for(int i=1; i < N; ++i){
      	l.at(i) = 3+2*l.at(i-1);
      	p.at(i) = 1+2*l.at(i-1);
    }
  	cout << func(N,X) << endl;
}

Compiler output:
a.cc: In function 'int func(int, int)':
a.cc:19:41: error: no match for call to '(std::vector<int>) (int)'
   19 |         return p.at(N-1) + func(N-1, X-l(N-1)-2)+1;
      |                                        ~^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int N, X;
vector<int> l(N),p(N);

int func(int N, int X){
  	if(N==0){
      	if(X==0){
         	return 0; 
        }
      	else{
         	return 1; 
        }
    }
 	else if(X <= l.at(N-1)+1){
     	return func(N-1, X-1); 
    }
  	else{
     	return p(N-1) + func(N-1, X-l(n-1)-2)+1; 
    }
  
}

int main(){
 	//int N, X;
  	cin >> N >> X;
  	//vector<int> l(N),p(N);
  	l.at(0)=1;
  	p.at(0)=1;
  	for(int i=1; i < N; ++i){
      	l.at(i) = 3+2*l.at(i-1);
      	p.at(i) = 1+2*l.at(i-1);
    }
  	cout << func(N,X) << endl;
}

Compiler output:
a.cc: In function 'int func(int, int)':
a.cc:19:17: error: no match for call to '(std::vector<int>) (int)'
   19 |         return p(N-1) + func(N-1, X-l(n-1)-2)+1;
      |                ~^~~~~
a.cc:19:39: error: 'n' was not declared in this scope
   19 |         return p(N-1) + func(N-1, X-l(n-1)-2)+1;
      |                                       ^
Language: C++

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

string func(int N){
  	if(N ==0){
     	return "P"; 
    }
	return "B"+func(N-1)+"P"+func(N-1)+"B";
}

int main(){
 	int N, X, ans=0;
  	cin >> N >> X;
  	string burger;
  	burger = func(N);
  	for(int i=0; i < X; ++i){
      	if(str[i] == 'P')
          	ans+=1;
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: 'str' was not declared in this scope; did you mean 'std'?
   17 |         if(str[i] == 'P')
      |            ^~~
      |            std
Language: C++

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

string func(int N){
  	if(N ==0){
     	return "P"; 
    }
	return "B"+func(N-1)+"P"+func(N-1)+"B"
}

int main(){
 	int N, X, ans=0;
  	cin >> N >> X;
  	string burger;
  	burger = func(N);
  	for(int x=0; i < X; ++i){
      	if(str[i] == 'P')
          	ans+=1;
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'std::string func(int)':
a.cc:8:47: error: expected ';' before '}' token
    8 |         return "B"+func(N-1)+"P"+func(N-1)+"B"
      |                                               ^
      |                                               ;
    9 | }
      | ~                                              
a.cc: In function 'int main()':
a.cc:16:22: error: 'i' was not declared in this scope
   16 |         for(int x=0; i < X; ++i){
      |                      ^
a.cc:17:12: error: 'str' was not declared in this scope; did you mean 'std'?
   17 |         if(str[i] == 'P')
      |            ^~~
      |            std
Language: C++

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

string func(N){
  	if(N ==0){
     	return "P"; 
    }
	return "B"+func(N-1)+"P"+func(N-1)+"B"
}

int main(){
 	int N, X, ans=0;
  	cin >> N >> X;
  	string burger;
  	burger = func(N);
  	for(int x=0; i < X; ++i){
      	if(str[i] == 'P')
          	ans+=1;
    }
  	cout << ans << endl;
}

Compiler output:
a.cc:4:13: error: 'N' was not declared in this scope
    4 | string func(N){
      |             ^
a.cc:4:15: error: expected ',' or ';' before '{' token
    4 | string func(N){
      |               ^
a.cc: In function 'int main()':
a.cc:15:22: error: no match for call to '(std::string {aka std::__cxx11::basic_string<char>}) (int&)'
   15 |         burger = func(N);
      |                  ~~~~^~~
a.cc:16:22: error: 'i' was not declared in this scope
   16 |         for(int x=0; i < X; ++i){
      |                      ^
a.cc:17:12: error: 'str' was not declared in this scope; did you mean 'std'?
   17 |         if(str[i] == 'P')
      |            ^~~
      |            std
Language: Java

import java.util.*;

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt(); //整数の入力
		long x = sc.nextLong();
		StringBuilder sb = new StringBuilder();
		sb.append('p');
		for (int i = 0; i < n; i++) {
			StringBuilder tmp = new StringBuilder();
			tmp.append('b');
			tmp.append(sb);
			tmp.append('p');
			tmp.append(sb);
			tmp.append('b');
			sb = tmp;
		}
		long total = 0;
		long size = sb.length();
		for (long i = 0; i < x; i++) {
			if (sb.charAt(i) == 'p') {
				total++;
			}
		}
		System.out.println(total);
	}
}

Compiler output:
Main.java:22: error: incompatible types: possible lossy conversion from long to int
			if (sb.charAt(i) == 'p') {
			              ^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error
Language: Java

import java.util.*;

public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt(); //整数の入力
		int x = sc.nextInt();
		List<int> list = new ArrayList<int>();
		list.add(1);
		for (int i = 0; i < n; i++) {
			List<int> tmp = new ArrayList<int>();
			tmp.add(0);
			tmp.addAll(list);
			tmp.add(1);
			tmp.addAll(list);
			tmp.add(0);
			list = tmp;
		}
		int total = 0;
		for (int i = 0; i < x; i++) {
			total += list.get(n - i - 1);
		}
		System.out.println(total);
	}
}

Compiler output:
Main.java:8: error: unexpected type
		List<int> list = new ArrayList<int>();
		     ^
  required: reference
  found:    int
Main.java:8: error: unexpected type
		List<int> list = new ArrayList<int>();
		                               ^
  required: reference
  found:    int
Main.java:11: error: unexpected type
			List<int> tmp = new ArrayList<int>();
			     ^
  required: reference
  found:    int
Main.java:11: error: unexpected type
			List<int> tmp = new ArrayList<int>();
			                              ^
  required: reference
  found:    int
4 errors
Language: C++

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

using namespace std;
int num(int n);
int pat(int n);
int ans(int n, int x);

int main(){
  int N, X;
  cin >> N >> X;
  cout << ans(N,X);

  return 0;
}

int num(int n){
  if(n ==0){
    return 1;
  }else{
    return 2*num(n-1)+3;
  }
}
int pat(int n){
  if(n == 0) return 1;
  else{
    return 2*pat(n-1) + 1;
  }
}

int ans(int n, int x){
  if(N==0) return 0;
  else if(x <= 1 + num(n-1)){
    return ans(n-1,x-1);
  }else{
    pat(n-1) + 1 + ans(n-1, x-2-num(n-1));
  }
}


Compiler output:
a.cc: In function 'int ans(int, int)':
a.cc:33:6: error: 'N' was not declared in this scope
   33 |   if(N==0) return 0;
      |      ^
a.cc:39:1: warning: control reaches end of non-void function [-Wreturn-type]
   39 | }
      | ^
Language: C++

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

using namespace std;
int num(int n);
int pat(int n);
int ans(int n, int x);

int main(){
  int N, X;
  cin >> N >> X;
  cout << ans(N,X);

  return 0
}

int num(int n){
  if(n ==0){
    return 1;
  }else{
    return 2*num(n-1)+3;
  }
}
int pat(int n){
  if(n == 0) return 1;
  else{
    return 2*pat(n-1) + 1;
  }
}

int ans(int n, int x){
  if(x==1) return 0;
  else if(x <= 1 + num(n-1)){
    return ans(n-1,x-1);
  }else if(x == 2 + num(n-1)){
    return 1 + pat(n-1);
  }else if(x <= 2 + 2*num(n-1)){
    pat(n-1)+1+ans(n-1, x-2-num(n-1));
  }else{
    2*pat(n-1)+1;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: expected ';' before '}' token
   15 |   return 0
      |           ^
      |           ;
   16 | }
      | ~          
a.cc: In function 'int ans(int, int)':
a.cc:43:1: warning: control reaches end of non-void function [-Wreturn-type]
   43 | }
      | ^
Language: C++

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

using namespace std;
int num(int n);
int pat(int n);
int ans(int n, int x);

int main(){
  int N, X;
  cin >> N >> X;
  cout << ans(N,X);

  return 0
}

int num(int n){
  if(n ==0){
    return 1;
  }else{
    return 2*num(n-1)+3;
  }
}
int pat(int n){
  if(n == 0) return 1;
  else{
    return 2*pat(n-1) + 1;
  }
}

int ans(int n, int x){
  if(x==1) return 0;
  else if(x <= 1 + num(n-1)){
    return ans(n-1,x-1);
  }else if(X == 2 + num(n-1)){
    return 1 + pat(n-1);
  }else if(x <= 2 + 2*num(n-1)){
    pat(n-1)+1+ans(n-1, x-2-num(n-1));
  }else{
    2*pat(n-1)+1;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: expected ';' before '}' token
   15 |   return 0
      |           ^
      |           ;
   16 | }
      | ~          
a.cc: In function 'int ans(int, int)':
a.cc:36:12: error: 'X' was not declared in this scope
   36 |   }else if(X == 2 + num(n-1)){
      |            ^
a.cc:43:1: warning: control reaches end of non-void function [-Wreturn-type]
   43 | }
      | ^
Language: Java

import java.util.*;

public class ABC115_D_Christmas {
    public static void main(String[] arg) {
        long N, X;
        Scanner scan = new Scanner(System.in);
        N = scan.nextLong();
        X = scan.nextLong();
        long[] a = new long[(int)N + 1];
        long[] p = new long[(int)N + 1];
        a[0] = 1;
        p[0] = 1;

        for (int i = 1; i <= N; i++) {
            a[i] = 2 * a[i - 1] + 3;
            p[i] = 2 * p[i - 1] + 1;
        }
        scan.close();
        System.out.println(f(N, X, a, p));
    }

    private static long f(long N, long X, long[] a, long[] p) {
        if (X == 1) {
            return N == 0 ? 1 : 0;
        }
        else if (X <= 1 + a[(int)N - 1]) {
            return f(N - 1, X - 1, a, p);
        }
        else if (X == 2 + a[(int)N - 1]) {
            return p[(int)N - 1] + 1;
        }
        else if (X <= 2 + 2 * a[(int)N - 1]) {
            return p[(int)N - 1] + 1 + f(N - 1, X - 2 - a[(int)N - 1], a, p);
        }
        else {
            return 2 * p[(int)N - 1] + 1;
        }
    }
}

Compiler output:
Main.java:3: error: class ABC115_D_Christmas is public, should be declared in a file named ABC115_D_Christmas.java
public class ABC115_D_Christmas {
       ^
1 error
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
// #include <numeric> // gcdとかlcmとか C++17から
#include <time.h> // time_t timer; time(&timer); でtimerに現在時刻が代入される．
#include <unistd.h> // sleep関数．引数は秒単位．
using namespace std;

typedef long long ll;


// sortの仕方
// 	■ string s の場合
// 	昇順: sort(s.begin(), s.end())
// 	降順: sort(s.rbegin(), s.rend())
//
// 	■ ll a[N] の場合
// 	昇順: sort(a, a+N)
// 	降順: 不明

// vector の使い方
// 宣言：
// vector<int> v;
// vector<int> v(N);
// 初期化:
// vector<int> v(10, 5); 要素数10，全ての要素の値5．
// vector<int> v = {1, 2, 3};
// 代入：
// v[0] = 3;
// sort:
// sort(v.begin(), v.end());
//

// int alph2int(char character) {
//     int x = character - 'a';
//     return x;
// }

ll my_gcd(ll a, ll b){
	return (b==0) ? a : my_gcd(b, a%b);
}

ll my_lcm(ll a, ll b){
	return a*b / my_gcd(a,b);
}

ll factorial(ll a){
	ll ans = 1;
	for(ll i=a; i>0; i--){
		ans *= i;
	}
	return ans;
}

int main(int argc, char *argv[]){
	ll N,X;
	cin >> N >> X;

	ll S_all[N+1], S_pat[N+1];
	S_all[0] = 1; S_pat[0] = 1;
	for (int i=1; i<=N; i++) {
		S_all[i] = 2*S_all[i-1] + 3;
		S_pat[i] = 2*S_pat[i-1] + 1;
	}

	ll ans = 0;
	int i=N-1;
	while (X != 0) {
		if (X == 1) {
			break;
		} else if (X <  2 + S_all[i]) {
			X--;
			i--;
            if (i == -1) {
                ans++;
                break;
            }
		} else if (X == 2 + S_all[i]) {
			ans += 1 + S_pat[i];
			break;
		} else if (X <  3 + 2*S_all[i]) {
			ans += 1 + S_pat[i];
			X -= 2+S_all[i];
			i--;50 4321098765432109
            if (i== -1) {
                ans++;
                break;
            }
		} else if (X == 3 + 2*S_all[i]) {
			ans += 1 + 2*S_pat[i];
			break;
		}
	}

	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:85:31: error: expected ';' before numeric constant
   85 |                         i--;50 4321098765432109
      |                               ^~~~~~~~~~~~~~~~~
      |                               ;
Language: C++

#include<iostream>
#include<string>
#include<windows.h>
#include<stdlib.h>
#include<conio.h>
#include<random>
#include<chrono>
#include<map>
#include<fstream>
#include<vector>
#define rep(i,n) for(int i=0;i<n;i++)
#define int long long
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
const long long mod = 1000000007;
const long long inf = 11451419198109130;
typedef pair<int, int> P;
int bp(int i, int j) {
	if (i) {
		if (i + 1 >= pow(2, j + 1))
		{
			if (i + 3 == pow(2, j + 2)) return pow(2, j + 1) - 1;
			else return pow(2, j) + bp(i - pow(2, j + 1) + 1, j - 1);
		}
		else return bp(i - 1, j - 1);
	}
	else return 0;
}
signed main() {
	int N, X;
	cin >> N >> X;
	cout << bp(X, N) << endl;
	return 0;
}

Compiler output:
a.cc:3:9: fatal error: windows.h: No such file or directory
    3 | #include<windows.h>
      |         ^~~~~~~~~~~
compilation terminated.
Language: C++

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

string burg(int num);
int main() {
  int N, X;
  cin >> N >> X;
  string burg(int num) {
  	if (num == 1) return "P";
  	else {
      string lsB = burg(num - 1);
      return "B" + lsB + "P" + lsB + "B";
  	}
  }
  string b = burg(N);
  int p = 0;
  for (int i = 0; i < X; ++i) {
    if (b[i] == 'P') ++p;
  }
  cout << p << endl;
}
string burg(int num) {
  if (num == 1) return "P";
  else {
    string lsB = burg(num - 1);
    return "B" + lsB + "P" + lsB + "B";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:24: error: a function-definition is not allowed here before '{' token
    9 |   string burg(int num) {
      |                        ^
Language: C++

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

int main() {
  int N, X;
  cin >> N >> X;
  string burg(int num) {
  	if (num == 1) return "P";
  	else {
      string lsB = burg(num - 1);
      return "B" + lsB + "P" + lsB + "B";
  	}
  }
  string b = burg(N);
  int p = 0;
  for (int i = 0; i < X; ++i) {
    if (b[i] == 'P') ++p;
  }
  cout << p << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:24: error: a function-definition is not allowed here before '{' token
    8 |   string burg(int num) {
      |                        ^
a.cc:15:14: error: 'burg' was not declared in this scope
   15 |   string b = burg(N);
      |              ^~~~
Language: C++

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

int main() {
  int N, X;
  cin >> N >> X;
  string b = burg(N);
  int p = 0;
  for (int i = 0; i < X; ++i) {
    if (b[i] == 'P') ++p;
  }
  cout << p << endl;
}
string burg(int num) {
  if (num == 1) return "P";
  else {
    string lsB = burg(num - 1);
    return "B" + lsB + "P" + lsB + "B";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:14: error: 'burg' was not declared in this scope
    8 |   string b = burg(N);
      |              ^~~~
Language: C++

#include<iostream>
using namespace std;

int main() {
  int N, X;
  cin >> N >> X;
  string b = burg(N);
  int p = 0;
  for (int i = 0; i < X; ++i) {
    if (b[i] == 'P') ++p;
  }
  cout << p << endl;
}
string burg(int num) {
  if (num == 1) return "P";
  else {
    string lsB = burg(num - 1);
    return "B" + lsB + "P" + lsB + "B";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:14: error: 'burg' was not declared in this scope
    7 |   string b = burg(N);
      |              ^~~~
Language: C++

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
long long num[55],meat[55];
long long dfs(int,long long);
int main(void)
{
    int n,i;
    long long x,sum;
    scanf("%d%lld",&n,&x);
    num[0]=1;meat[0]=1;
    for(i=1;i<=n;i++)
    {
        num[i]=2*num[i-1]+3;
        meat[i]=2*meat[i-1]+1;
    }
    sum=dfs(n,x);
    printf("%lld\n",sum);
    return 0;
}
long long dfs(int n,long long x)
{
    long long sum=0;
    if(n==0)sum=1;
    if(x==0){sum=0;
    return;}
    if(num[n]<=x)sum=meat[n];
    else if(x<=num[n]/2)sum+=dfs(n-1,x-1);
    else if(x==num[n]/2+1)sum+=meat[n-1]+1;
    else if(x>num[n]/2+1)sum+=meat[n-1]+1+dfs(n-1,x-num[n]/2-1);
    return sum;
}

Compiler output:
a.cc: In function 'long long int dfs(int, long long int)':
a.cc:26:5: error: return-statement with no value, in function returning 'long long int' [-fpermissive]
   26 |     return;}
      |     ^~~~~~
Language: C

#include <stdio.h>

int main(int argc, char const *argv[])
{
	int n, flag=1, ans=0;
	long long x, n1, n2, burger, burger1, burger2;
	scanf("%d%lld", &n, &x);
	burger1=1;
	n1=1;
	n2=2;
	for (int j = 1; j <= n; j+=2)
	{
		flag=2;
		burger2=burger1*2+1;
		burger2=burger2*n2*2
		burger2+=burger1*2;
		n1=2*n1+3;
		n2=n2*n2*8;
		if (j==n) break;
		flag=1;
		burger1=burger2*2+1;
		burger1=burger1*n1*2
		burger1+=burger2*2;
		n1=n1*2+3;
		n2=n2*n2*8;
	}
	if (flag==1)
	{
		burger=burger1;
	}
	else
	{
		burger=burger2;
	}
	for (int i = 0; i < x; ++i)
	{
		ans+=(burger+2)%2;
		burger/=2;
		if (burger==0) break;
	}
	printf("%d\n", ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:15:37: error: expected ';' before 'burger2'
   15 |                 burger2=burger2*n2*2
      |                                     ^
      |                                     ;
   16 |                 burger2+=burger1*2;
      |                 ~~~~~~~              
main.c:22:37: error: expected ';' before 'burger1'
   22 |                 burger1=burger1*n1*2
      |                                     ^
      |                                     ;
   23 |                 burger1+=burger2*2;
      |                 ~~~~~~~
Language: C

#include <stdio.h>

int main(int argc, char const *argv[])
{
	int n, x, n1, flag=1, ans=0;
	long long x, n1, burger, burger1, burger2;
	scanf("%d%lld", &n, &x);
	burger1=1;
	n1=1;
	for (int j = 1; j <= n; j+=2)
	{
		flag=2;
		burger2=burger1*2+1;
		for (int i = 0; i < n1+1; ++i)
		{
			burger2*=2;
		}
		burger2+=burger1*2;
		n1=2*n1+3;
		if (j==n) break;
		flag=1;
		burger1=burger2*2+1;
		for (int i = 0; i < n1+1; ++i)
		{
			burger1*=2;
		}
		burger1+=burger2*2;
		n1=n1*2+3;
	}
	if (flag==1)
	{
		burger=burger1;
	}
	else
	{
		burger=burger2;
	}
	for (int i = 0; i < x; ++i)
	{
		ans+=(burger+2)%2;
		burger/=2;
		if (burger==0) break;
	}
	printf("%d\n", ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:19: error: conflicting types for 'x'; have 'long long int'
    6 |         long long x, n1, burger, burger1, burger2;
      |                   ^
main.c:5:16: note: previous declaration of 'x' with type 'int'
    5 |         int n, x, n1, flag=1, ans=0;
      |                ^
main.c:6:22: error: conflicting types for 'n1'; have 'long long int'
    6 |         long long x, n1, burger, burger1, burger2;
      |                      ^~
main.c:5:19: note: previous declaration of 'n1' with type 'int'
    5 |         int n, x, n1, flag=1, ans=0;
      |                   ^~
Language: C++

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

int main(){
    auto f = [&f](auto N, auto X){
        auto P = 1LL << N;
        return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
    };
    int_fast64_t N, X;
    cin >> N >> X;
    cout << f(N, X) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:16: error: use of 'f' before deduction of 'auto'
    5 |     auto f = [&f](auto N, auto X){
      |                ^
a.cc: In lambda function:
a.cc:7:40: error: use of 'f' before deduction of 'auto'
    7 |         return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
      |                                        ^
a.cc:7:62: error: use of 'f' before deduction of 'auto'
    7 |         return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
      |                                                              ^
Language: C++

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

int main(){
    auto f = [&f]{
        auto P = 1LL << N;
        return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
    };
    int_fast64_t N, X;
    cin >> N >> X;
    cout << f(N, X) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:16: error: use of 'f' before deduction of 'auto'
    5 |     auto f = [&f]{
      |                ^
a.cc: In lambda function:
a.cc:6:25: error: 'N' was not declared in this scope
    6 |         auto P = 1LL << N;
      |                         ^
a.cc:7:16: error: 'X' was not declared in this scope
    7 |         return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
      |                ^
a.cc:7:40: error: use of 'f' before deduction of 'auto'
    7 |         return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
      |                                        ^
a.cc:7:62: error: use of 'f' before deduction of 'auto'
    7 |         return X ? N ? X < 2 * P - 1 ? f(N - 1, X - 1) : P + f(N - 1, X + 1 - P * 2) : 1 : 0;
      |                                                              ^
a.cc: In function 'int main()':
a.cc:11:14: error: no match for call to '(main()::<lambda()>) (int_fast64_t&, int_fast64_t&)'
   11 |     cout << f(N, X) << endl;
      |             ~^~~~~~
a.cc:5:14: note: candidate: 'main()::<lambda()>'
    5 |     auto f = [&f]{
      |              ^
a.cc:5:14: note:   candidate expects 0 arguments, 2 provided
Language: Java

static HashMap<String,Long> dic = new HashMap<>();
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        long x = sc.nextLong();
        long layer = (long) (4*Math.pow(2,n)-3);
        dic.put(Long.toString(1),1L);
        long ans = helper(layer,x);
        System.out.println(ans);
    }
    // treat every sub-problem as a complete burger. Make-up for the lower buns when necessary
    static public long helper(long layer, long x){
        String k = Long.toString(layer)+"*"+Long.toString(x);
        long ans = 0;
        if(dic.containsKey(k)) return dic.get(k);
        if(x<=0||layer==0) return 0;
        if(layer==1) return 1;
        // in former step, the bun on the top may be annoying so that x>layer.
        // in case this happens, let x <= layer for all the time.
        if(x>layer) x=layer;
        if(2*x+1<layer){
            ans += helper((layer-3)/2,x-1);
        } else{
            ans += helper((layer-3)/2,x-1);
            ans += 1; // the patty in the middle
            if(x==layer) x--;// eating the top bun means nothing
            ans += helper((layer-3)/2,x-(layer+1)/2);
        }
        dic.put(k,ans);
        return ans;
    }

Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
static HashMap<String,Long> dic = new HashMap<>();
       ^
  (use --enable-preview to enable unnamed classes)
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
long long a[55], b[55];
int main() {
  long long n, x;
  cin >> n >> x;
  a[0] = 1;
  for (int i = 1; i <= n; i++) {
    a[i] = a[i - 1] * 2 + 1;
  }
  b[0] = 1;
  for (int i = 1; i <= n; i++) {
    b[i] = b[i - 1] * 2 + 3;
  }
  ll ans = 0;
  while (x > 0) {
    if (x == b[n]) {
      ans += a[n];
      x = 0;
    } else if (x >= b[n] / 2 + 1) {
      ans += a[n - 1] + 1;
      x -= b[n] / 2 + 1;
    } else {
      x--;
    }
    n--;
  }
  cout << ans << endl;
  return 0;
  
}
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:15:3: error: 'll' was not declared in this scope
   15 |   ll ans = 0;
      |   ^~
a.cc:18:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
   18 |       ans += a[n];
      |       ^~~
      |       abs
a.cc:21:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
   21 |       ans += a[n - 1] + 1;
      |       ^~~
      |       abs
a.cc:28:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   28 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

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

vector<ll> p(52), b(52), s(52);
p[0] = 1;
s[0] = 1;
rep(i, 50)
    {
        b[i + 1] = 2 + 2 * b[i];
        p[i + 1] = 1 + 2 * p[i];
        s[i + 1] = b[i + 1] + p[i + 1];
    }
ll find(ll n, ll x)
{
    if (n * x == 0)
    {
        if (x == 1)
            return 1;
        else
            return 0;
    }
    if (0 < x && x < s[n - 1] + 2)
    {
        return find(n - 1, x - 1);
    }
    else
    {
        return p[n - 1] + 1+find(n - 1, x - 2 - s[n - 1]);
    }
}


int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    ll n, x;
    cin >> n >> x;

    cout << find(n, x) << endl;

    return 0;
}


Compiler output:
a.cc:8:1: error: 'p' does not name a type
    8 | p[0] = 1;
      | ^
a.cc:9:1: error: 's' does not name a type
    9 | s[0] = 1;
      | ^
a.cc:5:19: error: expected unqualified-id before 'for'
    5 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                   ^~~
a.cc:10:1: note: in expansion of macro 'rep'
   10 | rep(i, 50)
      | ^~~
a.cc:10:5: error: 'i' does not name a type
   10 | rep(i, 50)
      |     ^
a.cc:5:35: note: in definition of macro 'rep'
    5 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                                   ^
a.cc:10:5: error: 'i' does not name a type
   10 | rep(i, 50)
      |     ^
a.cc:5:44: note: in definition of macro 'rep'
    5 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                                            ^
Language: C++

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

vector<ll> p(52), b(52), s(52);

ll find(ll n, ll x)
{
    if (n * x == 0)
    {
        if (x == 1)
            return 1;
        else
            return 0;
    }
    if (0 < x && x < s[n - 1] + 2)
    {
        return find(n - 1, x - 1);
    }
    else
    {
        return p[n - 1] + 1+find(n - 1, x - 2 - s[n - 1]);
    }
}
p[0] = 1;
s[0] = 1;
rep(i, 50)
    {
        b[i + 1] = 2 + 2 * b[i];
        p[i + 1] = 1 + 2 * p[i];
        s[i + 1] = b[i + 1] + p[i + 1];
    }

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    ll n, x;
    cin >> n >> x;

    cout << find(n, x) << endl;

    return 0;
}


Compiler output:
a.cc:27:1: error: 'p' does not name a type
   27 | p[0] = 1;
      | ^
a.cc:28:1: error: 's' does not name a type
   28 | s[0] = 1;
      | ^
a.cc:5:19: error: expected unqualified-id before 'for'
    5 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                   ^~~
a.cc:29:1: note: in expansion of macro 'rep'
   29 | rep(i, 50)
      | ^~~
a.cc:29:5: error: 'i' does not name a type
   29 | rep(i, 50)
      |     ^
a.cc:5:35: note: in definition of macro 'rep'
    5 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                                   ^
a.cc:29:5: error: 'i' does not name a type
   29 | rep(i, 50)
      |     ^
a.cc:5:44: note: in definition of macro 'rep'
    5 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                                            ^
Language: C++

N,X=map(int,input().split())
a=[2**(i+2)-3 for i in range(N+1)]
p=[2**(i+1)-1 for i in range(N+1)]
def ans(n,x):
    if n==0:
        return 1
    if x<=1:
        return 0
    elif x<=2**(n+1)-2:
        return ans(n-1,x-1)
    elif x==2**(n+1)-1:
        return p[n-1]+1
    elif x<=2**(n+2)-4:
        return p[n-1]+1+ans(n-1,x+1-2**(n+1))
    else:
        return p[n]
print(ans(N,X))


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

#include <iostream>
#include <algorithm>

long long b[60], h[60], n, r, ans;

void solve(int now)
{
	if (r <= 0) return;
	if (!now) { --r, ++ans; return; }
	if (r >= h[now]) { r -= h[now], ans += b[now]; return; } 
	--r;
	if (r > 0) solve(now - 1);
	if (r > 0) ++ans, --r;
	if (r > 050 4321098765432109) solve(now - 1);
	--r;
}

int main()
{
	scanf("%lld%lld", &n, &r);
	h[0] = 1, b[0] = 1;
	for (int i = 1; i <= 50; ++i) h[i] = (h[i - 1] << 1) + 3, b[i] = 1 + (b[i - 1] << 1);
	solve(n); 
	std::cout << ans;
	return 0;
}

Compiler output:
a.cc: In function 'void solve(int)':
a.cc:14:20: error: expected ')' before numeric constant
   14 |         if (r > 050 4321098765432109) solve(now - 1);
      |            ~       ^~~~~~~~~~~~~~~~~
      |                    )
Language: C++

#include <stdlib.h>
long long solve(long long, long long);
long long pow2(long long);
long long a[6] = {0, 1, 2, 3, 3, 3};
int main()
{
  long long n, x;
  scanf("%lld%lld", &n, &x)
    long long ans;
  ans = solve(n, x);
  printf("%lld\n",ans);
  return 0;
}
long long solve(long long n, long long x)
{
  if (n==1)
  {
    return a[x-1];
  }
  long long st = pow2(n+1) - 1, ans;//每行面包 肉饼个数和 的一半 包括中间的
  if (n>1)
  {
    if (x >= st){
      // printf("st = %lld\n", st);
      // printf("%lld")
      // printf("n-1 = %lld x-st = %lld solve(n-1, x-st) = %lld\n", n-1, x-st, solve(n-1, x-st-1));
      // printf("pow2(n) = %lld\n", pow2(n));
      ans = pow2(n)-1 + 1 + solve(n-1, x-st);//2 13
      // printf("ans = %lld\n", ans);
    }
    else{
      ans = solve(n-1, x-1);
    }
  }
  return ans;
}
long long pow2(long long n)
{
  long long x = 1;
  for (int i = 0; i < n; ++i)
    x *= 2;
  return x;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'scanf' was not declared in this scope
    8 |   scanf("%lld%lld", &n, &x)
      |   ^~~~~
a.cc:10:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   10 |   ans = solve(n, x);
      |   ^~~
      |   abs
a.cc:11:3: error: 'printf' was not declared in this scope
   11 |   printf("%lld\n",ans);
      |   ^~~~~~
a.cc:2:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
    1 | #include <stdlib.h>
  +++ |+#include <cstdio>
    2 | long long solve(long long, long long);
Language: C++

#include <iostream>
using namespace std;

int memo[55];

int f(int L) {
  // 値がメモされていればmemo[L]の値を返す
  if (memo[L] > 0) return memo[L];
  // 0バーガーの枚数は1枚
  if (L == 0) return memo[0] = 1;
  // Lバーガーの枚数は1 + getBurgerNum(n-1) + 1 + getBurgerNum(n-1) + 1なので, 
  // 2 * f(n-1) + 3で求められる
  return memo[L] = 2 * f(n-1) + 3;
}

int solve(int L, int X) {
  if (X == 0) return 0;
  else if (X <= f(L-1) + 1) {
    return solve(L-1, X-1);
  } else if (X <= 2 + f(L-1)) {
    return solve(L-1, X-1) + 1;
  } else if (X <= 2 + 2*f(L-1)) {
    return solve(L-1, X-1) + 1 + solve(L-1, X-2);
  } else {
    return solve(L-1, X-1) + 1 + solve(L-1, X-2);
  }
}

int main() {
  int N, X;
  cin >> N >> X;
  int ans = solve(N, X);
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int f(int)':
a.cc:13:26: error: 'n' was not declared in this scope
   13 |   return memo[L] = 2 * f(n-1) + 3;
      |                          ^
Language: C++

#include <iostream>
using namespace std;

int solve(int L, int X) {
  if (X == 0) return 0;
  else if (X <= f(L-1) + 1) {
    return solve(L-1, X-1);
  } else if (X <= 2 + f(L-1)) {
    return solve(L-1, X-1) + 1;
  } else if (X <= 2 + 2*f(L-1)) {
    return solve(L-1, X-1) + 1 + solve(L-1, X-2);
  } else {
    return solve(L-1, X-1) + 1 + solve(L-1, X-2);
  }
}

int main() {
  int N, X;
  cin >> N >> X;
  int ans = solve(N, X);
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int solve(int, int)':
a.cc:6:17: error: 'f' was not declared in this scope
    6 |   else if (X <= f(L-1) + 1) {
      |                 ^
a.cc:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^