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

#include <iostream>
#include <string>
#include <algorithm>
#include <math.h>
using namespace std;
int main(){
  int N;
  cin>>N;
  int a[100000];
  for(int i=0;i<N;i=i+1){
    cin>>a[i];
  }
  int judge=0;
  for(int i=0;i<N;i=i+1){
    if(a[i]/2==1){
      judge=judge+1;
    }
  }
  if(judge==0){
    cout<<second<<endl;
  }
  else{
    cout<<first<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:11: error: 'second' was not declared in this scope
   20 |     cout<<second<<endl;
      |           ^~~~~~
a.cc:23:11: error: 'first' was not declared in this scope
   23 |     cout<<first<<endl;
      |           ^~~~~
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <math.h>
using namespace std;
int main{
  int N;
  cin>>N;
  int a[100000];
  for(int i=0;i<N;i=i+1){
    cin>>a[i];
  }
  int judge=0;
  for(int i=0;i<N;i=i+1){
    if(a[i]/2==1){
      judge=judge+1;
    }
  }
  if(judge==0){
    cout<<second<<endl;
  }
  else{
    cout<<first<<endl;
  }
}

Compiler output:
a.cc:6:5: error: cannot declare '::main' to be a global variable
    6 | int main{
      |     ^~~~
a.cc:7:3: error: expected primary-expression before 'int'
    7 |   int N;
      |   ^~~
a.cc:7:3: error: expected '}' before 'int'
a.cc:6:9: note: to match this '{'
    6 | int main{
      |         ^
a.cc:8:3: error: 'cin' does not name a type
    8 |   cin>>N;
      |   ^~~
a.cc:10:3: error: expected unqualified-id before 'for'
   10 |   for(int i=0;i<N;i=i+1){
      |   ^~~
a.cc:10:15: error: 'i' does not name a type
   10 |   for(int i=0;i<N;i=i+1){
      |               ^
a.cc:10:19: error: 'i' does not name a type
   10 |   for(int i=0;i<N;i=i+1){
      |                   ^
a.cc:14:3: error: expected unqualified-id before 'for'
   14 |   for(int i=0;i<N;i=i+1){
      |   ^~~
a.cc:14:15: error: 'i' does not name a type
   14 |   for(int i=0;i<N;i=i+1){
      |               ^
a.cc:14:19: error: 'i' does not name a type
   14 |   for(int i=0;i<N;i=i+1){
      |                   ^
a.cc:19:3: error: expected unqualified-id before 'if'
   19 |   if(judge==0){
      |   ^~
a.cc:22:3: error: expected unqualified-id before 'else'
   22 |   else{
      |   ^~~~
a.cc:25:1: error: expected declaration before '}' token
   25 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define DEBUG(x) cerr<<#x<<": "<<x<<endl;
#define DEBUG_VEC(v) cerr<<#v<<":";for(int i=0;i<v.size();i++) cerr<<" "<<v[i]; cerr<<endl

typedef long long ll;
#define vi vector<int>
#define vl vector<ll>
#define vii vector< vector<int> >
#define vll vector< vector<ll> >
#define vs vector<string>
#define pii pair<int,int>
#define pis pair<int,string>
#define psi pair<string,int>
#define pll pair<ll,ll>
template<class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); }
template<class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); }
template<class S, class T> ostream& operator<<(ostream& os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; }
#define X first
#define Y second
#define rep(i,n) for(int i=0;i<(n);i++)
#define rep1(i,n) for(int i=1;i<=(n);i++)
#define rrep(i,n) for(int i=(n)-1;i>=0;i--)
#define rrep1(i,n) for(int i=(n);i>0;i--)
#define REP(i,a,b) for(int i=a;i<b;i++)
#define in(x, a, b) (a <= x && x < b)
#define all(c) c.begin(),c.end()
template<class T> bool chmax(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a = b; return 1; } return 0; }
#define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end());
const ll inf = 1000000001;
const ll INF = 1e18;
const ll MOD = 1000000007;
//const ll MOD = 998244353;
const double pi = 3.14159265358979323846;
#define Sp(p) cout<<setprecision(15)<< fixed<<p;
int dx[4] = { 1,0, -1,0 }, dy[4] = { 0,1,0,-1 };
int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 };
#define fio() cin.tie(0); ios::sync_with_stdio(false);
//#define mp make_pair


int main() {
  ll n, p;
  cin >> n >> p;
  map<ll, ll> cnt;
  for (ll i = 2; i*i <= p; i++) {
    while (p % i == 0) {
      cnt[i]++;
      p /= i;
    }
  }
  cnt[p]++;
  ll ans = 1;
  for (auto itr = cnt.begin(); itr != cnt.end(); itr++) {
    DEBUG(*itr);
    if (itr->second < n) continue;
    ans *= (itr->second / n) * itr->first;
  }
  cout << ans << endl;
}
    
int main() {
  int n;
  cin >> n;
  vl a(n);
  rep (i, n) {
    cin >> a[i];
  }
  bool flag = false;
  rep (i, n) {
    if (a[i] % 2) {
      flag = true;
    }
  }
  if (flag) {
    cout << "first" << endl;
  }
  else {
    cout << "second" << endl;
  }
}


Compiler output:
a.cc:65:5: error: redefinition of 'int main()'
   65 | int main() {
      |     ^~~~
a.cc:45:5: note: 'int main()' previously defined here
   45 | int main() {
      |     ^~~~
Language: C++

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

signed main(){
  int n;
  cin>>n;
  vector<int> a(n);
  int sum=0;
  for(int i=0;i<n;i++){
    cin>>a[i];
    sum+=a[i];
  }
  if(sum%2==0)cout<<"second"<<endl;
  slse cout<<"first"<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:3: error: 'slse' was not declared in this scope
   16 |   slse cout<<"first"<<endl;
      |   ^~~~
Language: C++

#include <cstdio>
main()
{int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}


Compiler output:
a.cc:3:36: error: extended character 　 is not valid in an identifier
    3 | {int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}
      |                                    ^
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:3:36: error: 'int\U00003000i' was not declared in this scope
    3 | {int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}
      |                                    ^~~~~~
a.cc:3:45: error: 'i' was not declared in this scope
    3 | {int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}
      |                                             ^
Language: C++

#include <cstdio>
main()
{int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}

Compiler output:
a.cc:3:36: error: extended character 　 is not valid in an identifier
    3 | {int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}
      |                                    ^
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:3:36: error: 'int\U00003000i' was not declared in this scope
    3 | {int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}
      |                                    ^~~~~~
a.cc:3:45: error: 'i' was not declared in this scope
    3 | {int n,a;scanf("%d",&n);bool r;for(int　i=0;i<n;i++)scanf("%d",&a),r|=a%2;printf("%s\n",r?"first":"second");}
      |                                             ^
Language: C++

#include <iostream>
using namespace std;

int main(){
  int N, a;
  bool is_odd = false;
  cin >> N;
  for(int i = 0; i < N; i++){
  	cin >> a;
    if(a % 2 == 1) is_odd = true;
  }
  cout << is_odd ? "first" : "second" << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:39: error: invalid operands of types 'const char [7]' and '<unresolved overloaded function type>' to binary 'operator<<'
   12 |   cout << is_odd ? "first" : "second" << endl;
      |                              ~~~~~~~~~^~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(ll (i) = (0);(i) < (n);++i)
#define REV(i,n) for(ll (i) = (n) - 1;(i) >= 0;--i)
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define FI first
#define SE second
#define SHOW1d(v,n) {REP(WW,n)cerr << v[WW] << ' ';cerr << endl << endl;}
#define SHOW2d(v,WW,HH) {REP(W_,WW){REP(H_,HH)cerr << v[W_][H_] << ' ';cerr << endl;}cerr << endl;}
#define ALL(v) v.begin(),v.end()
#define Decimal fixed<<setprecision(20)
#define INF 1000000000
#define LLINF 1000000000000000000LL
#define MOD 1000000007

typedef long long ll;
typedef pair<ll,ll> P;


int main(){
	
	int n;cin >> v;
	
	REP(i,n){
		int a;cin >> a;
		if(a % 2){
			cout << "first" << endl;
			return 0;
		}
	}
	
	cout << "second" << endl;
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:22: error: 'v' was not declared in this scope
   26 |         int n;cin >> v;
      |                      ^
Language: C

#include <stdio.h>
typedef unsigned int uint;
inline static uint gl(void){
    uint x = 0;
    for(;;){
        const uint c = getchar_unlocked() - 48;
        if(c < 10){
            x = x*10 + c;
        }else{
            return x;
        }
    }
}

inline static bool gg(void){
    uint x = 0;
    for(;;){
        const uint c = getchar_unlocked() - 48;
        if(c < 10){
            x = c;
        }else{
            return x&1;
        }
    }
}

int main(void){
    const size_t n = gl();
    for(size_t i=0; i<n; i++){
        if(gg()){
            puts("first");
            return 0;
        }
    }
    puts("second");
    return 0;
}


Compiler output:
main.c:15:15: error: unknown type name 'bool'
   15 | inline static bool gg(void){
      |               ^~~~
main.c:2:1: note: 'bool' is defined in header '<stdbool.h>'; this is probably fixable by adding '#include <stdbool.h>'
    1 | #include <stdio.h>
  +++ |+#include <stdbool.h>
    2 | typedef unsigned int uint;
Language: C++

#define debug_interval ','
#define dump_interval ' '
#define debug_toggle 1
//{
#include<bits/stdc++.h>
using namespace std;
#define hi cout<<"hi"<<endl;
#define int long long
#define INT_MAX LLONG_MAX
#define rep(i,n) for(int i=0;i<(n);i++)
#define rep1(i,n) for(int i=1;i<=(n);i++)
#define pb push_back
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define fi first
#define se second
#define mp make_pair
#define rev reverse
#define dans dump(ans)
#define MOD 1000000007
#define amp(v,n) (v).count(n)?v[n]++:v[n]=1
#define sysp system("pause")

//{
inline int toInt(string s){int v;istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x){ostringstream sout;sout<<x;return sout.str();}
template<class...A> inline void dump(){cout<<endl;}
template<class...A> inline void dump_rest() {cout<<endl;}
template<class T, class...A> inline void dump_rest(const T& first, const A&... rest){cout<<dump_interval<<first;dump_rest(rest...);}
template<class T,class...A> inline void dump(const T&first,const A&...rest){cout<<first;dump_rest(rest...);}
template<class...A> inline void debug(){cerr<<endl;}
template<class...A> inline void debug_rest() {cerr<<endl;}
template<class T, class...A> inline void debug_rest(const T& first, const A&... rest){cerr<<debug_interval<<first;debug_rest(rest...);}
template<class T,class...A> inline void debug(const T&first,const A&...rest){if(debug_toggle)cerr<<first,debug_rest(rest...);}
//}

typedef vector<int>vint;
typedef pair<int,int>pint;
typedef vector<pint>vpint;

template<typename A,typename B>inline void chmin(A &a,B b){if(a>b)a=b;}
template<typename A,typename B>inline void chmax(A &a,B b){if(a<b)a=b;}
template<int m>class mint{private:int i;public:mint() : i(0){}mint(int i): i((i%m+m)%m){}mint operator+(const mint& o){return o.i+i;}mint operator*(const mint& o){return o.i*i;}mint operator-(){return -i;}operator int() {return i;}};

int n,m,ans,flg;

main(){
	cin>>n;
	int a[n];
	rep(i,n){
		cin>>a[i];
		ans+=a;
	}
	if(n==2&&a[0]==1||a[1]==1)cout<<"first"<<endl;
	if(ans%2==0)dump("second");
	else dump("first");
}



Compiler output:
a.cc:9:9: warning: "INT_MAX" redefined
    9 | #define INT_MAX LLONG_MAX
      |         ^~~~~~~
In file included from /usr/include/c++/14/climits:42,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:38,
                 from a.cc:5:
/usr/lib/gcc/x86_64-linux-gnu/14/include/limits.h:120:9: note: this is the location of the previous definition
  120 | #define INT_MAX __INT_MAX__
      |         ^~~~~~~
a.cc:47:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   47 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:52:20: error: invalid conversion from 'long long int*' to 'long long int' [-fpermissive]
   52 |                 ans+=a;
      |                 ~~~^~~
      |                    |
      |                    long long int*
Language: C++

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

int main(){
  int n, sum=0, m=0;
  cin >> n;
  for(int i=0; i<n; i++){
    int tmp;
    cin >> tmp;
    sum += (tmp%2);
    m=max(m, tmp);
  }
  if(m==1)cout << "first";
  else if(m==2){
    if(sum==2*n)cout << "second";
    else cout << "first";
  else {
    if(sum%2==1)cout << "first";
    else cout << "second";
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:3: error: expected '}' before 'else'
   19 |   else {
      |   ^~~~
a.cc:16:16: note: to match this '{'
   16 |   else if(m==2){
      |                ^
Language: C++

#include <iostream>
#include <cmath>
#include <vector>

using namespace std;

int main() {
    int n;
    cin >> n;
    vector<long> a(n);
    for(int i = 0;i < n;++i){
        long j;
        cin >> j;
        a.push_back(j);
    }
    sort(a.begin(),a.end(),greater<long>());
    if(a[0] == 1 && a[1] == 1){
        cout << "first" << endl;
    }
    else{
        if(a[1] >= 4){
            if((a[0] - a[1]) % 2 == 1){
                cout << "first" << endl;
            }
            else cout << "second" << endl;
        }
        else{
            if(a[1] == 2){
                cout << (a[0] % 2 == 1 ? "first" : "second") << endl;
            }
            else cout << (a[0] % 2 == 0 ? "first" : "second") << endl;
        }
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:5: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   16 |     sort(a.begin(),a.end(),greater<long>());
      |     ^~~~
      |     sqrt
Language: C++

#include<bits/stdc++.h>

#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define ALL(a) (a).begin(),(a).end()
#define Yes(hoge) cout<<((hoge)?"Yes":"No")<<endl;
#define YES(hoge) cout<<((hoge)?"YES":"NO")<<endl;
typedef struct aaaaa{
  int x,y,t;
}Grid;
using namespace std;
int main(){
  int n;cin>>n;
  vector<ll>apple(n);
  ll sum=0;
  ll cnt=0;
  for(int i=0;i<n;i++){cin>>apple[i];
    if(apple[i]==1)
    cnt++;
    sum+=max(0LL,apple[i]);}
  sort(ALL(apple));
  if(apple[n-2]==1){cout<<"first"<<endl;return 0;}
  
  if(sum%2){
    cout<<"first"<<endl;
  }else{
    else
    cout<<"second"<<endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:33:5: error: 'else' without a previous 'if'
   33 |     else
      |     ^~~~
Language: C++

#include<bits/stdc++.h>

#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define ALL(a) (a).begin(),(a).end()
#define Yes(hoge) cout<<((hoge)?"Yes":"No")<<endl;
#define YES(hoge) cout<<((hoge)?"YES":"NO")<<endl;
typedef struct aaaaa{
  int x,y,t;
}Grid;
using namespace std;
int main(){
  int n;cin>>n;
  vector<ll>apple(n);
  ll sum=0;
  ll cnt=0;
  for(int i=0;i<n;i++){cin>>apple[i];
    if(apple[i]==1)
      cnt++;
    sum+=max(0,apple[i]-2);}
  string s="first";
  if(sum%2){
    s="second";
  }
  if(cnt%2){
    s=(s=="first")?"second":"first";
  }
  if(apple.size()%2)
        s=(s=="first")?"second":"first";
  cout<<s<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:13: error: no matching function for call to 'max(int, __gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type)'
   26 |     sum+=max(0,apple[i]-2);}
      |          ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:26:13: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'})
   26 |     sum+=max(0,apple[i]-2);}
      |          ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:26:13: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   26 |     sum+=max(0,apple[i]-2);}
      |          ~~~^~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int n,b;
int main(){
	cin>>n;
	for(i=1;i<=n;i++){
		scanf("%d",&b);
		if(b&1){
			cout<<"second"<<endl;
			return 0;
		}
	}
	cout<<"first"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: 'i' was not declared in this scope
    6 |         for(i=1;i<=n;i++){
      |             ^
Language: C++

#include<bita/stdc++.h>
using namespace std;
int n,b;
int main(){
	cin>>n;
	for(i=1;i<=n;i++){
		scanf("%d",&b);
		if(b&1){
			cout<<"second"<<endl;
			return 0;
		}
	}
	cout<<"first"<<endl;
}

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

#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
#include<sstream>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<climits>
#include<cmath>
#include<string>
#include<vector>
#include<set>
#include<map>
#include<queue>
#include<numeric>
#include<functional>
#include<algorithm>
#include<bitset>
#include<tuple>
#include<unordered_set>
#include<random>
#include<array>
#include<cassert>
using namespace std;
#define INF (1<<29)
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()
#define uniq(v) v.erase(unique(all(v)),v.end())


int n;
int a[100000];

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

	cin >> n;
	rep(i, n)cin >> a[i];

	long long xor = 0;
	sort(a, a + n);

	set<long long> s(a, a + n);
	for (long long x : s) {
		xor ^= x * ((a + n) - lower_bound(a, a + n, x));
	}
	cout << (xor==0?"first":"second") << endl;


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:40:19: error: expected unqualified-id before 'xor' token
   40 |         long long xor = 0;
      |                   ^~~
a.cc:45:17: error: expected primary-expression before 'xor' token
   45 |                 xor ^= x * ((a + n) - lower_bound(a, a + n, x));
      |                 ^~~
a.cc:45:21: error: expected primary-expression before '^=' token
   45 |                 xor ^= x * ((a + n) - lower_bound(a, a + n, x));
      |                     ^~
a.cc:47:18: error: expected primary-expression before 'xor' token
   47 |         cout << (xor==0?"first":"second") << endl;
      |                  ^~~
a.cc:47:21: error: expected primary-expression before '==' token
   47 |         cout << (xor==0?"first":"second") << endl;
      |                     ^~
Language: C++

#include<bits/stdc++.h>

#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define ALL(a) (a).begin(),(a).end()
#define Yes(hoge) cout<<((hoge)?"Yes":"No")<<endl;
#define YES(hoge) cout<<((hoge)?"YES":"NO")<<endl;
typedef struct aaaaa{
  int x,y,t;
}Grid;
using namespace std;
int main(){
  int n;cin>>n;
  vector<ll>apple(n);
  for(int i=0;i<n;i++)cin>>apple[i];
  sort(ALL(apple[i]));
  ll sum=0;
  if((apple[n-1]-apple[n-2])*2>apple[n-1])
    cout<<"second"<<endl;
  else
    cout<<"first"<<endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:18: error: 'i' was not declared in this scope
   22 |   sort(ALL(apple[i]));
      |                  ^
a.cc:11:17: note: in definition of macro 'ALL'
   11 | #define ALL(a) (a).begin(),(a).end()
      |                 ^
Language: C++

#include <iostream>
int main() 
{
  int N;
  bool odd = false;
  for(int i = 0; i < N; i++){int a;
                            std::cin >> a;
                            if(a % 2 == 1){odd=true;}
                            }
  std::cout < (odd?"first":"second")<<std::endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:37: error: invalid operands of types 'const char*' and '<unresolved overloaded function type>' to binary 'operator<<'
   10 |   std::cout < (odd?"first":"second")<<std::endl;
      |               ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
Language: C++

#include <iostream>
int main() 
{
  int N;
  bool odd = false;
  for(int i = 0; i < N; i++){int a;
                            std::cin >> a;
                            if(a % 2 == 1){od=true;}
                            }
  std::cout < (odd?"first":"second")<<std::endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:44: error: 'od' was not declared in this scope; did you mean 'odd'?
    8 |                             if(a % 2 == 1){od=true;}
      |                                            ^~
      |                                            odd
a.cc:10:37: error: invalid operands of types 'const char*' and '<unresolved overloaded function type>' to binary 'operator<<'
   10 |   std::cout < (odd?"first":"second")<<std::endl;
      |               ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
Language: Java

import java.io.*;
import java.util.*;

class Main {
 	public static void main(String args[]) throws IOException {
     	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      	int N = Integer.parseInt(br.readLine());
      	int[] arr = new int[N];
      	int[] dp = new int[N];
      	dp[0] = 1;
      	int ans = 0;
      	StringTokenizer st = new StringTokenizer(br.readLine());
      	arr[0] = Integer.parseInt(st.nextToken());
      	for(int i=1;i<N;i++) {
         	arr[i] = Integer.parseInt(st.nextToken());
          	int tmp = (arr[i-1] + 1) / 2;
          	if(tmp%2 != 0) {
             	tmp++; 
            }
          	if(tmp > dp[i-1])
              ans += d[i-1];
         	else {
              ans += tmp;
              arr[i] *= (-2*tmp);
            }
        }
      	System.out.println(ans);
    }
}

Compiler output:
Main.java:21: error: cannot find symbol
              ans += d[i-1];
                     ^
  symbol:   variable d
  location: class Main
1 error
Language: Java

import java.io.*;
import java.util.*;

class Main {
 	public static void main(String args[]) throws IOException {
     	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      	int N = Integer.parseInt(br.readLine());
      	int[] arr = new int[N];
      	int[] dp = new int[N];
      	dp[0] = 1;
      	StringTokenizer st = new StringTokenizer(br.readLine());
      	arr[0] = Integer.parseInt(st.nextToken());
      	for(int i=1;i<N;i++) {
         	arr[i] = Integer.parseInt(st.nextToken());
          	int tmp = (arr[i-1] + 1) / 2;
          	if(tmp%2 != 0) {
             	tmp++; 
            }
          	if(tmp > dp[i-1])
              ans += d[i-1];
         	else {
              ans += tmp;
              arr[i] *= (-2*tmp);
            }
        }
      	System.out.println(ans);
    }
}

Compiler output:
Main.java:20: error: cannot find symbol
              ans += d[i-1];
              ^
  symbol:   variable ans
  location: class Main
Main.java:20: error: cannot find symbol
              ans += d[i-1];
                     ^
  symbol:   variable d
  location: class Main
Main.java:22: error: cannot find symbol
              ans += tmp;
              ^
  symbol:   variable ans
  location: class Main
Main.java:26: error: cannot find symbol
      	System.out.println(ans);
      	                   ^
  symbol:   variable ans
  location: class Main
4 errors
Language: Java

import java.io.*;
import java.util.*;

class Main {
 	public static void main(String args[]) throws IOException {
     	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      	int N = Integer.parseInt(br.readLine());
      	int[] arr = new int[N];
      	int[] dp = new int[N];
      	dp[0] = 1;
      	StringTokenizer st = new StringTokenizer(br.readLine());
      	arr[0] = Integer.parseInt(st.nextToken());
      	for(int i=1;i<N;i++) {
         	arr[i] = Integer.parseInt(st.nextToken());
          	int tmp = (arr[i-1] + 1) / 2;
          	if(tmp%2 ! = 0) {
             	tmp++; 
            }
          	if(tmp > dp[i-1])
              ans += d[i-1];
         	else {
              ans += tmp;
              arr[i] *= (-2*tmp);
            }
        }
      	System.out.println(ans);
    }
}

Compiler output:
Main.java:16: error: ')' expected
          	if(tmp%2 ! = 0) {
          	        ^
Main.java:16: error: illegal start of expression
          	if(tmp%2 ! = 0) {
          	           ^
Main.java:16: error: ';' expected
          	if(tmp%2 ! = 0) {
          	              ^
3 errors
Language: C++

        chmin(ans,(i==0?0ll:dp2[i-1][0])+(i==n?0ll:dp1[i][0]));


Compiler output:
a.cc:1:14: error: expected constructor, destructor, or type conversion before '(' token
    1 |         chmin(ans,(i==0?0ll:dp2[i-1][0])+(i==n?0ll:dp1[i][0]));
      |              ^
Language: C++

/*
 * じょえチャンネル
 * 高評価・チャンネル登録よろしくおねがいします！
 * https://www.youtube.com/channel/UCRXsI3FL_kvaVL9zoolBfbQ
 */

#include <bits/stdc++.h>
#include <boost/multiprecision/cpp_int.hpp>
using namespace boost::multiprecision;

//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")

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




//here!!!
// define int long long !!!!!

#define int cpp_int

// define int long long !!!!!


#define mod (int)((1e9)+7)
//constexpr int mod = 998244353ll;


#ifdef int
#define inf (int)(3e18)
#else
#define inf (int)(5e8)
#endif

#define intt long long
#define itn long long
#define P pair<long long,long long>

#define rep(i,n) for(int i=0;i<n;i++)
#define REP(i,n) for(int i=1;i<=n;i++)

#define ALL(v) v.begin(),v.end()

using namespace std;



#define endl "\n" //interactive の時に注意！！！
#define printd cout<<fixed<<setprecision(10)
#define smallpriority_queue(x) priority_queue<x,vector<x>,greater<x>>



int n,a[200004],ans,l,r;
signed main(){
    ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    cin>>n;
    REP(i,n)cin>>a[i];
    r=n+1;
    ans=inf;
    rep(angraobk,1) {
        int m=(r-l)/3+l;
        int m2=(r-l)/3*2+l;
        int ka=m,ka2=m2;
        {
            vector<int> v,v2;
            REP(i,m){
                v.emplace_back(a[i]);
            }
            for (int i=m+1; i<=n; i++) {
                v2.emplace_back(a[i]);
            }
            if(m)v[m-1]*=-2;
            
            for (int i=m-2; i>=0; i--) {
                v[i]*=-2;
                while (v[i+1]<v[i]) {
                    v[i]*=4;
                    ka+=2;
                }
            }
            for (int i=m+2; i<=n; i++) {
                while (v2[i-2-m]>v2[i-m-1]) {
                    v2[i-m-1]*=4;
                    ka+=2;
                }
            }
        }
        swap(m,m2);
        {
            vector<int> v,v2;
            REP(i,m){
                v.emplace_back(a[i]);
            }
            for (int i=m+1; i<=n; i++) {
                v2.emplace_back(a[i]);
            }
            if(m)v[m-1]*=-2;
            
            for (int i=m-2; i>=0; i--) {
                v[i]*=-2;
                while (v[i+1]<v[i]) {
                    v[i]*=4;
                    ka2+=2;
                }
            }
            for (int i=m+2; i<=n; i++) {
                while (v2[i-2-m]>v2[i-m-1]) {
                    v2[i-m-1]*=4;
                    ka2+=2;
                }
            }
        }
        swap(m,m2);
        chmin(ans, min(ka,ka2));
        if (ka2<ka) {
            l=m;
        }else{
            r=m2;
        }
    }
    cout<<ans<<endl;
}








Compiler output:
a.cc:8:10: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
    8 | #include <boost/multiprecision/cpp_int.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <string>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <iomanip>
#include <utility>
#include <tuple>
#include <functional>
#include <bitset>
#include <cassert>
#include <complex>
#include <stdio.h>
#include <time.h>
#define int long long
#define endl '\n'
#define INF 1000000000000000000
#define EPS 1e-10
#define PI 3.141592653589793238
#define all(a) a.begin(),a.end()
#define rep(i, n) for (int i = 0; i < (n); i++)
#define pb push_back
#define double long double
using namespace std;
typedef long long ll;
typedef pair<ll, ll> P;
typedef pair<P, ll> PP;
typedef complex<double> com;
template<class T, class S> bool chmax(T &a, const S &b) { if (a < b) { a = b; return 1; } return 0; }
template<class T, class S> bool chmin(T &a, const S &b) { if (a > b) { a = b; return 1; } return 0; }
ll gcd(ll n, ll m) { return (m ? gcd(m, n%m) : n); }
ll lcm(ll n, ll m) { return n / gcd(n, m)*m; }


signed main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	cout << fixed << setprecision(20);
	//modcalc();

	int n;
	cin >> n;
	vector<int> a(n);
	rep(i, n) cin >> a[i];
	int left = 0, right = n; int ans = INF;
	int tmp = 0;
	while (right - left > 2) {
		int mid_left = (left * 2 + right) / 3;
		int mid_right = (left + right * 2) / 3;
		function<int(int, vector<int>)> solve = [](int m, vector<int> a) {
			int cnt = 0;
			int n = a.size();
			if (m<0 || m>n) return INF;
			if (m != 0 && a[m - 1] > 0) {
				a[m - 1] *= -2; cnt++;
			}
			if (m != n && a[m] < 0) {
				a[m] *= 2; cnt++;
			}
			for (int i = m - 2; i >= 0; i--) {
				while (a[i] > a[i + 1]) {
					a[i] *= -2; cnt++;
				}
			}
			for (int i = m + 1; i < n; i++) {
				while (a[i - 1] > a[i]) {
					a[i] *= -2; cnt++;
				}
			}
			return cnt;
		};
		int x = solve(mid_left, a);
		int y = solve(mid_right, a);
		if (x > y) {
			left = mid_left; rep(i, 3) chmin(ans, solve(mid_right - i, a));
		}
		else {
			right = mid_right; rep(i, 3) chmin(ans, solve(mid_left - i, a));
		}
	}
	cout << ans << endl;
}

Compiler output:
a.cc: In lambda function:
a.cc:74:32: error: inconsistent types 'long int' and 'long long int' deduced for lambda return type
   74 |                         return cnt;
      |                                ^~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
#include "../lib/math/modpow.hpp"

#define SZ(x) (int)(x.size())

using ll = long long;
using ld = long double;
using P = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vll = vector<ll>;
using vvll = vector<vector<ll>>;
const ld eps = 1e-9;
const ll MOD = 1000000007;
const int INF = 1000000000;
const ll LINF = 1ll<<50;

template<typename T>
void printv(const vector<T>& s) {
  for(int i=0;i<(int)(s.size());++i) {
    cout << s[i];
    if(i == (int)(s.size())-1) cout << endl;
    else cout << " ";
  }
}

template<typename T1, typename T2>
ostream& operator<<(ostream &os, const pair<T1, T2> p) {
  os << p.first << ":" << p.second;
  return os;
}

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

  ll n; cin >> n;
  vll a(n), b(n);
  for(int i=0;i<n;++i) {
    cin >> a[i];
    b[i] = 2 * a[i];
  }
  vvll dpl(n, vll(30, LINF)), dpr(n, vll(30, LINF));

  for(int i=0;i<30;++i) {
    dpr[n-1][i] = i;
  }
  for(int i=n-2;i>=0;--i) {
    for(int j=0;j<30;++j) {
      ld tmp = log2((ld)a[i] / a[i+1]) / 2.0 + j;
      tmp -= eps;
      ll m = tmp < 0 ? 0ll : (ll)(floor(tmp) + eps) + 1;
      if(m < 30) {
        dpr[i][j] = j + dpr[i+1][m];
      } else {
        dpr[i][j] = j + dpr[i+1][29] + (n-i-1) * (m - 29);
      }
    }
  }
  for(int i=0;i<30;++i) {
    dpl[0][i] = i;
  }
  for(int i=1;i<n;++i) {
    for(int j=0;j<30;++j) {
      ld tmp = log2((ld)a[i] / a[i-1]) / 2.0 + j;
      tmp -= eps;
      ll m = tmp < 0 ? 0ll : (ll)(floor(tmp) + eps) + 1;
      if(m < 30) {
        dpl[i][j] = j + dpl[i-1][m];
      } else {
        dpl[i][j] = j + dpl[i-1][29] + i * (m - 29);
      }
    }
  }

  ll ans = LINF;
  for(int i=0;i<n-1;++i) {
    ans = min(ans, 2 * (dpl[i][0] + dpr[i+1][0]) + (i+1));
  }
  ans = min(ans, 2*dpr[0][0]);
  ans = min(ans, 2*dpl[n-1][0] + n);

  cout << ans << endl;

}


Compiler output:
a.cc:4:10: fatal error: ../lib/math/modpow.hpp: No such file or directory
    4 | #include "../lib/math/modpow.hpp"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include "bits/stdc++.h"

using namespace std;

using ll = __int128_t;

template <typename T>
void printv(const vector<T> &v)
{
    int sz = v.size();
    for (int i = 0; i < sz; i++)
    {
        cout << v[i] << " \n"[i == sz - 1];
    }
}

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

    int n;
    cin >> n;
    vector<ll> a(n);
    for (int i = 0; i < n; i++)
    {
        int tmp;cin>>tmp
        a[i] = tmp;
    }
    // dp0[i][j] := 左から降順にして,i番目をj回4倍するときの最小回数
    vector<vector<int>> dp0(n, vector<int>(16, 1e9)), dp1(n, vector<int>(16, 1e9));
    for (int j = 0; j <= 15; j++)
    {
        dp0[0][j] = j;
        dp1[n - 1][j] = j;
    }
    for (int i = 1; i < n; i++)
    {
        for (int j = 0; j <= 15; j++)
        {
            for (int k = 0; k <= 15; k++)
            {
                // a[i-1] * 4^k, a[i] * 4^j
                ll pre = a[i - 1] << (2 * (k - min(j, k)));
                ll cur = a[i] << (2 * (j - min(j, k)));
                int cnt = 0;
                while (pre < cur)
                {
                    cnt += i;
                    pre *= 4;
                }
                dp0[i][j] = min(dp0[i][j], dp0[i - 1][k] + cnt + j);
            }
        }
    }
    for (int i = n - 2; i >= 0; i--)
    {
        for (int j = 0; j <= 15; j++)
        {
            for (int k = 0; k <= 15; k++)
            {
                // a[i+1] * 4^k, a[i] * 4^j
                ll pre = a[i + 1] << (2 * (k - min(j, k)));
                ll cur = a[i] << (2 * (j - min(j, k)));
                int cnt = 0;
                while (cur > pre)
                {
                    cnt += n - i - 1;
                    pre *= 4;
                }
                dp1[i][j] = min(dp1[i][j], dp1[i + 1][k] + cnt + j);
            }
        }
    }
    int ret = min(2 * dp1[0][0], 2 * dp0[n - 1][0] + n);
    // i 番目から正
    for (int i = 1; i < n; i++)
    {
        ret = min(ret, 2 * dp0[i - 1][0] + i + 2 * dp1[i][0]);
    }
    cout << ret << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:25: error: expected ';' before 'a'
   27 |         int tmp;cin>>tmp
      |                         ^
      |                         ;
   28 |         a[i] = tmp;
      |         ~
Language: C++

#include <cstdio>
#include <iostream>

struct range {
	int left;
	int right;
	long long left_mult;
	long long right_mult;
};
int N;
long long as[200008];
long long bs[200008];
using namespace std;
int comp(long long va, long long a_mult, long long vb, long long b_mult) {
	if(a_mult < b_mult) return -comp(vb, b_mult, va, a_mult);
	long long diff = a_mult - b_mult;
	for(int i=0;i<diff;i++) {
		va *= 2;
		if(va > vb) return 1;
	}
	if(va == vb) return 0;
	if(va > vb) return 1;
	return -1;
}
range ranges[200002];
long long update(int cur, long long *values) {
	if(ranges[cur].right == N) return 0;
	long long ret = 0;
	int next = ranges[cur].right + 1;
	if(comp(values[ranges[cur].right], ranges[cur].right_mult, values[ranges[next].left], ranges[next].left_mult) <= 0) return 0;
	while(comp(values[ranges[cur].right], ranges[cur].right_mult, values[ranges[next].left], ranges[next].left_mult) == 1) {
		ret += 2 * (ranges[next].right - ranges[next].left + 1);
		ranges[next].left_mult += 2;
		ranges[next].right_mult += 2;
	}
	ranges[cur].right = ranges[next].right;
	ranges[cur].right_mult = ranges[next].right_mult;
	return ret + update(cur, values);
}
void calc(int *dp, long long *values) {
	for(int i=1;i<=N;i++) {
		ranges[i].left = i;
		ranges[i].right = i;
		ranges[i].left_mult = 0;
		ranges[i].right_mult = 0;
	}
	for(int i = N - 1;i>0;i--) dp[i] = dp[i+1] + update(i, values); 
}
long long dp1[200008];
long long dp2[200008];
int main() {
	scanf("%d", &N);
	for(int i=1;i<=N;i++) {
		scanf("%lld", &as[i]);
		bs[N - i + 1] = as[i] * 2;
	}
	calc(dp1, as);
	calc(dp2, bs);
	for(int i=1;i<=N;i++) dp2[i] += N - i + 1;
	long long sol = dp1[1];
	for(int i=2;i<=N;i++) {
		if(sol > dp1[i] + dp2[N - i + 2]) sol = dp1[i] + dp2[N - i + 2];
	}
	printf("%lld\n", sol);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:57:14: error: cannot convert 'long long int*' to 'int*'
   57 |         calc(dp1, as);
      |              ^~~
      |              |
      |              long long int*
a.cc:40:16: note:   initializing argument 1 of 'void calc(int*, long long int*)'
   40 | void calc(int *dp, long long *values) {
      |           ~~~~~^~
a.cc:58:14: error: cannot convert 'long long int*' to 'int*'
   58 |         calc(dp2, bs);
      |              ^~~
      |              |
      |              long long int*
a.cc:40:16: note:   initializing argument 1 of 'void calc(int*, long long int*)'
   40 | void calc(int *dp, long long *values) {
      |           ~~~~~^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i,n) for(int i=0;i<int(n);++i)
#define rep1(i,n) for(int i=1;i<=int(n);++i)
#define all(a) (a).begin(),(a).end()

ll n;

vector<ll> calc(vector<ll> &a) {
    vector<ll> sum(n);
    stack<int> stack;
    ll cnt = 0;
    rep1(i,n-1){
        ll pre = a[i-1], cur = a[i];
        if (pre >= cur) {
            while (pre >= cur*4) {
                cur *= 4;
                stack.push(i);
            }
        } else {
            while (pre < cur) {
                if (stack.empty()) {
                    cnt += i*2;
                } else {
                    int k = stack.top(); stack.pop();
                    cnt += (i-k)*2;
                }
                pre *= 4;
            }
        }
        sum[i] = cnt;
    }
    return sum;
}

int main(void){
    cin >> n;
    vector<ll> a(n);
    rep(i,n) cin >> a[i];
    vector<ll> l = calc(a);
    reverse(all(a));
    vector<ll> r = calc(a);
    reverse(all(r));

    ll res = r[0];
    rep1(i,n-1){
        res = min(res_min, l[i-1] + i + r[i]);
    }
    cout << res << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:48:19: error: 'res_min' was not declared in this scope
   48 |         res = min(res_min, l[i-1] + i + r[i]);
      |                   ^~~~~~~
Language: C++

#include <cmath>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std
#define double long double
vector<long long> solve(vector<long long> v) {
	int N = v.size();
	vector<double> pot(N), sum(N);
	for (int i = 0; i < N; ++i) pot[i] = log2(v[i]) / 2; // = log4(v[i])
	for (int i = 1; i < N; ++i) {
		double diff = pot[i] - pot[i - 1] + 32 + 1.0e-11L;
		sum[i] = sum[i - 1] + (diff - int(diff));
	}
	vector<double> eval(N);
	for (int i = 0; i < N; ++i) eval[i] = sum[i] - pot[i];
	vector<long long> ans(N);
	vector<int> st;
	double cur = 0, tailsum = 0;
	for (int i = N - 1; i >= 0; --i) {
		while (!st.empty() && eval[st.back()] >= eval[i]) {
			int last = N;
			if (st.size() >= 2) last = st[st.size() - 2];
			cur -= eval[st.back()] * (last - st.back());
			st.pop_back();
		}
		cur += eval[i] * ((st.empty() ? N : st.back()) - i);
		st.push_back(i);
		tailsum += eval[i];
		ans[i] = tailsum - cur;
	}
	return ans;
}
int main() {
	int N;
	cin >> N;
	vector<long long> A(N);
	for (int i = 0; i < N; ++i) {
		cin >> A[i];
	}
	vector<long long> cpos = solve(A);
	reverse(A.begin(), A.end());
	vector<long long> cneg = solve(A);
	reverse(A.begin(), A.end());
	reverse(cneg.begin(), cneg.end());
	long long ans = (1LL << 60);
	for (int i = 0; i <= N; ++i) {
		ans = min(ans, (i == N ? 0 : cpos[i]) * 2 + (i == 0 ? 0 : cneg[i - 1]) * 2 + i);
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc:5:20: error: expected ';' before 'vector'
    5 | using namespace std
      |                    ^
      |                    ;
    6 | #define double long double
    7 | vector<long long> solve(vector<long long> v) {
      | ~~~~~~
Language: C++

#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
vector<long long> solve(vector<long long> v) {
	int N = v.size();
	vector<double> pot(N), sum(N);
	for (int i = 0; i < N; ++i) pot[i] = log2(v[i]) / 2; // = log4(v[i])
	for (int i = 1; i < N; ++i) {
		double diff = pot[i] - pot[i - 1] + 32;
		sum[i] = sum[i - 1] + (diff - int(diff));
	}
	vector<double> eval(N);
	for (int i = 0; i < N; ++i) eval[i] = sum[i] - pot[i];
	vector<long long> ans(N);
	vector<int> st;
	double cur = 0, tailsum = 0;
	for (int i = N - 1; i >= 0; --i) {
		while (!st.empty() && eval[st.back()] >= eval[i]) {
			int last = N;
			if (st.size() >= 2) last = st[st.size() - 2];
			cur -= eval[st.back()] * (last - st.back());
			st.pop_back();
		}
		cur += eval[i] * ((st.empty() ? N : st.back()) - i);
		st.push_back(i);
		tailsum += eval[i];
		ans[i] = tailsum - cur;
	}
	return ans;
}
int main() {
	int N;
	cin >> N;
	vector<long long> A(N);
	for (int i = 0; i < N; ++i) {
		cin >> A[i];
	}
	vector<long long> cpos = solve(A);
	reverse(A.begin(), A.end());
	vector<long long> cneg = solve(A);
	reverse(A.begin(), A.end());
	reverse(cneg.begin(), cneg.end());
	long long ans = (1LL << 60);
	for (int i = 0; i <= N; ++i) {
		ans = min(ans, (i == N ? 0 : cpos[i]) * 2 + (i == 0 ? 0 : cneg[i - 1]) * 2 + i);
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'std::vector<long long int> solve(std::vector<long long int>)':
a.cc:8:46: error: 'log2' was not declared in this scope
    8 |         for (int i = 0; i < N; ++i) pot[i] = log2(v[i]) / 2; // = log4(v[i])
      |                                              ^~~~
Language: C++

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

long long dp0[200001][16];
long long dp1[200001][16];

long long calc_dp(long long dp[200001][16], int x, int p, vector<long long> &A){
    if(dp[x][p] != -1)
        return dp[x][p];

    if(p < 16){
        long long a = A[x];
        long long b = A[x+1];
        for(int i=0; i<p; i++)
            a *= 4;
        long long pow = 0;
        while(a > b){
            while(a % 4 == 0 && b % 4 == 0){
                a /= 4;
                b /= 4;
            }
            b *= 4;
            pow++;
        }
        long long tmp = calc_dp(dp, x+1, pow, A);
        if(pow < 16)
            dp[x+1][pow] = tmp;
        return pow + tmp;
    }else{
        long long m = A.size()-x-1;
        dp[x+1][15] = calc_dp(dp, x+1, 15, A);
        return dp[x+1][15] + (p-15)*m*(m+1)/2;
    }
}

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

    for(int i=0; i<N-1; i++){
        for(int j=0; j<16; j++){
            dp0[i][j] = -1;
            dp1[i][j] = -1;
        }
    }

    for(int i=N-1; i>=0; i--)
        for(int j=0; j<16; j++)
            dp0[i][j] = calc_dp(dp0, i, j, A);

    reverse(A.begin(), A.end());
    for(int i=N-1; i>=0; i--)
        for(int j=0; j<16; j++)
            dp1[i][j] = calc_dp(dp1, i, j, A);

    long long ans = 1LL<<60;
    for(int i=0; i<=N; i++){
        long long tmp1 = 2*dp0[i][0];
        long long tmp2 = 2*dp1[N-i][0] + i;
        ans = min(ans, tmp1+tmp2);
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:55:5: error: 'reverse' was not declared in this scope
   55 |     reverse(A.begin(), A.end());
      |     ^~~~~~~
Language: C++

import java.util.*;

public class Main {
	static class Range {
		int size;
		long lv, rv;
		public Range(int size, long lv, long rv) {
			this.size = size;
			this.lv = lv;
			this.rv = rv;
		}
		
	}
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int N = sc.nextInt();
		long[] A = new long[N];
		for(int i=0; i<N; i++)
			A[i] = sc.nextLong();
		System.out.println(solve1(N,A));
//		System.out.println(solve2(N,A));
		
		sc.close();
	}
	
	
	public static int[] dp1(long[] A) {
		int N = A.length;
		int[] ans = new int[N+1];
		
		LinkedList<Range> list = new LinkedList<>();
		ans[N] = 0;
		for(int i=N-1; i>=0; i--) {
			ans[i] = ans[i+1];
			list.push(new Range(1, A[i], A[i]));
			
			while(list.size() > 1) {
				Range cur = list.pop();
				if(cur.rv <= list.peek().lv) {
					list.push(cur);
					break;
				}
				Range next = list.pop();
				while(cur.rv > next.lv) {
					next.lv *= 4;
					next.rv *= 4;
					ans[i] += 2*next.size;
				}
				cur.size += next.size;
				cur.rv = next.rv;
				list.push(cur);
			}
		}

		return ans;
	}
	
	public static long solve1(int N, long[] A){
		int[][] dp = new int[2][];
		
		dp[0] = dp1(A);
		long[] B = new long[A.length];
		for(int i=0; i<N; i++)
			B[i] = A[N-1-i];
		dp[1] = dp1(B);
		
		int ans = Integer.MAX_VALUE;
		for(int i=0; i<=N; i++)
			ans = Math.min(ans, dp[0][i]+dp[1][N-i]+i);
		
		return ans;
	}
	
	public static long solve2(int n, long[] a){
		
		long[] suf=dp(a);
		
		long[] b=new long[n];
		for(int i=0;i<n;i++){
			b[i]=a[n-i-1];
		}
		long[] pre2=dp(b);
		long[] pre=new long[n];
		for(int i=0;i<n;i++){
			pre[i]=pre2[n-1-i];
		}
		//pl(Arrays.toString(pre));
		long res=Long.MAX_VALUE;
		int tantyo=0;
		for(int i=0;i<n;i++){
			if(i>0){
				if(a[i]>=a[i-1]) tantyo++;
				else tantyo=0;
			}
			//pl(tantyo);
			long temp=i-tantyo;
			temp+=(i>0)?pre[i-1]*2:0;
			temp+=suf[i]*2;
			res=Math.min(res,temp);
			
		}
		return res;
	}
	static void pl(Object o){
		System.out.println(o);
	}
	static long[] dp(long[] a){
		int n=a.length;
		long[] res=new long[n];
		
		int[] stack=new int[10000000];
		int size=0;
		
		for(int i=n-2;i>=0;i--){
			int kaisu=0;
			long p=a[i+1];
			long temp=0;
			while(a[i]>p){
				p*=4;
				kaisu++;
			}
			if(kaisu>0){
				//pl(Arrays.toString(Arrays.copyOf(stack,10)));
				while(kaisu>0){
					int ind=(size>0)?stack[--size]:n-1;
					temp+=ind-i;
					kaisu--;
				}
				
			}else{
				int kosu=0;
				long p2=a[i];
				while(p2<=a[i+1]){
					p2*=4;
					kosu++;
				}
				kosu--;
				for(int j=0;j<kosu;j++) stack[size++]=i;
			}
			res[i]=res[i+1]+temp;
		}
		//pl(Arrays.toString(res));
		return res;
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~