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

#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
#include<queue>
#include<map>
#include<set>
#include<algorithm>
#include<complex>
#include<string>
#include<cstring>
using namespace std;
#define rep2(x,from,to) for(int x=(from);(x)<(to);(x)++)
#define rep(x,to) rep2(x,0,to)
#define INF 100000000
#define debug(x) cout<<#x<<": "<<x<<endl

#define all(x) x.begin(),x.end()
typedef pair<int,int> P;
typedef pair<int,P> PP;
int input_n;
int ans;
int n;
int a[200005];
set<int> st;
int index[200005];
int l[200005];
int r[200005];
int main()
{
	cin>>n;
	rep(i,n)
	{
		cin>>a[i];
		index[a[i]-1]=i;
	}
	rep(i,n)
	{
		st.insert(index[i]);
		set<int>::iterator it=st.find(index[i]);
		set<int>::iterator iit=it;
		set<int>::iterator itt=it;
		iit--;
		itt++;
		if(it==st.begin())
		{
			l[index[i]]=0;
		}
		else
		{
			 l[index[i]]=(*iit)+1;
		}
		if(itt==st.end())
		{
			r[index[i]]=n-1;
		}
		else
		{
			//if(index[i]==0)cout<<"a";
			 r[index[i]]=(*itt)-1;
		}
	}
	rep(i,n)
	{
		//cout<<l[i]<<" "<<r[i]<<endl;
		ans+=a[i]*(i-l[i]+1)*(r[i]-i+1);
	}
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc:26:17: error: 'int index [200005]' redeclared as different kind of entity
   26 | int index[200005];
      |                 ^
In file included from /usr/include/string.h:462,
                 from /usr/include/c++/14/cstring:43,
                 from a.cc:11:
/usr/include/strings.h:50:20: note: previous declaration 'const char* index(const char*, int)'
   50 | extern const char *index (const char *__s, int __c)
      |                    ^~~~~
a.cc: In function 'int main()':
a.cc:35:22: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   35 |                 index[a[i]-1]=i;
      |                      ^
a.cc:39:32: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   39 |                 st.insert(index[i]);
      |                                ^
a.cc:40:52: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   40 |                 set<int>::iterator it=st.find(index[i]);
      |                                                    ^
a.cc:47:32: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   47 |                         l[index[i]]=0;
      |                                ^
a.cc:51:33: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   51 |                          l[index[i]]=(*iit)+1;
      |                                 ^
a.cc:55:32: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   55 |                         r[index[i]]=n-1;
      |                                ^
a.cc:60:33: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   60 |                          r[index[i]]=(*itt)-1;
      |                                 ^
Language: Java

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            int N = in.nextInt();
            int[] A = new int[N];

            for (int i = 0; i < N; i++) {
                A[i] = in.nextInt();
            }

            System.out.println(solve(0, A.length - 1, new RMQ(A)));
        }
    }

    private static long solve(int l, int r, RMQ rmq){
        if (l > r)
            return 0;

        if (l == r)
            return rmq.queryValue(l, r);

        int p = rmq.queryPosition(l, r);
        int key = rmq.queryValue(l, r);

        return (long)key * (p - l + 1) * (r - p + 1) + solve(l, p - 1, rmq) + solve(p + 1, r, rmq);
    }
}


Compiler output:
Main.java:20: error: cannot find symbol
    private static long solve(int l, int r, RMQ rmq){
                                            ^
  symbol:   class RMQ
  location: class Main
Main.java:16: error: cannot find symbol
            System.out.println(solve(0, A.length - 1, new RMQ(A)));
                                                          ^
  symbol:   class RMQ
  location: class Main
2 errors
Language: Java

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            int N = in.nextInt();
            int[] A = new int[N];

            for (int i = 0; i < N; i++) {
                A[i] = in.nextInt();
            }
            
            System.out.println(solve(0, A.length - 1, new RMQ(A)));
        }
    }

    private static long solve(int l, int r, RMQ rmq){
        if (l > r)
            return 0;

        if (l == r)
            return rmq.queryValue(l, r);

        int p = rmq.queryPosition(l, r);
        int key = rmq.queryValue(l, r);

        return (long)key * (p - l + 1) * (r - p + 1) + solve(l, p - 1, rmq) + solve(p + 1, r, rmq);
    }
}


Compiler output:
Main.java:20: error: cannot find symbol
    private static long solve(int l, int r, RMQ rmq){
                                            ^
  symbol:   class RMQ
  location: class Main
Main.java:16: error: cannot find symbol
            System.out.println(solve(0, A.length - 1, new RMQ(A)));
                                                          ^
  symbol:   class RMQ
  location: class Main
2 errors
Language: Java

import java.io.*;
import java.util.*;
public final class minimum_sums_dsu
{
    static BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
	static FastScanner sc=new FastScanner(br);
    static PrintWriter out=new PrintWriter(System.out);
	static int[] parent,depth,size;
	
	static int getParent(int u)
	{
		if(u==parent[u])	
			return u;
		int val=getParent(parent[u]);parent[u]=val;return parent[u];
	}
	
	static void merge(int u,int v)
	{
		if(depth[u]>depth[v])
		{
			size[u]+=size[v];parent[v]=u;
		}
		else if(depth[v]>depth[u])
		{
			size[v]+=size[u];parent[u]=v;
		}
		else
		{
			depth[u]++;size[u]+=size[v];parent[v]=u;
		}
	}
	
	public static void main(String args[]) throws Exception
	{
		int n=sc.nextInt();Pair[] a=new Pair[n];TreeSet<Integer> ts=new TreeSet<Integer>();parent=new int[n];depth=new int[n];size=new int[n];
		for(int i=0;i<n;i++)
		{
			a[i]=new Pair(i,sc.nextLong());parent[i]=i;depth[i]=1;size[i]=1;
		}
		Arrays.sort(a);long res=0;
		for(int i=n-1;i>=0;i--)
		{
			long l=1,r=1;Integer val1=ts.lower(a[i].idx),val2=ts.higher(a[i].idx);
			if(val1!=null && val1==a[i].idx-1)
			{
				int x=getParent(a[i].idx-1);l+=size[x];merge(x,a[i].idx);
			}
			if(val2!=null && val2==a[i].idx+1)
			{
				int x=getParent(a[i].idx+1);r+=size[x];merge(x,getParent(a[i].idx));
			}
			res=res+(a[i].val*l*r);ts.add(a[i].idx);
		}
		out.println(res);out.close();
	}
}
class Pair implements Comparable<Pair>
{
	int idx;long val;
	public Pair(int idx,long val)
	{
		this.idx=idx;this.val=val;
	}
	public int compareTo(Pair x)
	{
		return Long.compare(this.val,x.val);
	}
}
class FastScanner
{
    BufferedReader in;
    StringTokenizer st;

    public FastScanner(BufferedReader in) {
        this.in = in;
    }
	
    public String nextToken() throws Exception {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }
	
	public String next() throws Exception {
		return nextToken().toString();
	}
	
    public int nextInt() throws Exception {
        return Integer.parseInt(nextToken());
    }

    public long nextLong() throws Exception {
        return Long.parseLong(nextToken());
    }

    public double nextDouble() throws Exception {
        return Double.parseDouble(nextToken());
    }
}

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

#include <iostream>
#include <unordered_map>
#include <set>
#include <vector>

static const int INF = 100000000;

using namespace std;

int main()
{
    int N(8);
    int res(0);
    vector<int> v{5,4,8,1,2,6,7,3};
    int min = v[0];
      
    for (int j = 0; j < N; ++j){
        for (int r = j; r < N; ++r){
            if (r == j){
                mat[j][r] = v[j];
                min = v[j];
                res += v[j];
                continue;
            }
            
            if (v[r] < min){
                min = v[r];
                res += min;
            }else{
                res += min;
            }
        }
    }
    cout << res;
}

       
      


Compiler output:
a.cc: In function 'int main()':
a.cc:20:17: error: 'mat' was not declared in this scope
   20 |                 mat[j][r] = v[j];
      |                 ^~~
Language: C++

#include<stdio.h>
long long int n, a[200100],sum;
int main(){
	int i,j;
	scanf("%lld",&n);
	a[0]=0;
	for(i=1;i<=n;i++){
		scanf("%lld",a+i);
		j=i-1;
		while(a[i]<a[j]){
			a[j]=a[i];
			j--;
			s=s-a[i]+a[j];
		}
		sum=sum+s;
	}
	printf("%lld",sum);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:25: error: 's' was not declared in this scope
   13 |                         s=s-a[i]+a[j];
      |                         ^
a.cc:15:25: error: 's' was not declared in this scope
   15 |                 sum=sum+s;
      |                         ^
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<cstdio>
#include<queue>
#include<cmath>
#include<map>
#include<set>
using namespace std;
const int INF = 1 << 29;
const double EPS = 1e-9;

typedef long long ll;

#define SORT(c) sort((c).begin(),(c).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n)  FOR(i,0,n)

class RMQ{
  private:
    static const int MAX_N = 1 << 17;
    int n, dat[2*MAX_N -1];
    //[a,b)の最小値を返す
    //kは節点の番号l,rはその節点が[l,r)を保持している
    int rec(int a,int b,int k,int l,int r){
      if(b <= l || r <= a){
        return INT_MAX;
      }

      if(a<=l && r<=b){
        return dat[k];
      }else{
        int rl = rec(a,b,2*k+1,l,(l+r)/2);
        int rr = rec(a,b,2*k+2,(l+r)/2,r);
        return min(rl,rr);
      }
    }

  public:
    void init(int n_){
      n=1;
      while(n < n_) n*=2;

      for(int i=0;i<2*n-1;i++){
      dat[i] = INT_MAX;
      }
    }

    //kをaに変更
    void update(int k, int a){
      int reaf = k+n-1;
      dat[reaf]=a;
      while(reaf>0){
        reaf = (reaf-1)/2;
        dat[reaf]=min(dat[reaf*2+1],dat[2*reaf+2]);
      }
    }

    //query[a,b]の範囲内の最小値を返す
    int query(int a,int b){
      return rec(a,b+1,0,0,n);
    }
};

int N;
int a[200001];
int main(int argc, char * argv[])
{
    ios::sync_with_stdio(false);
    RMQ r;
    cin >>  N;
    r.init(N);
    int x;
    rep(i,N){
        cin >> x;
        r.update(i,x);
    }
    ll sum = 0;

    rep(i,N) {
        for (int j=i; j<N; j++) {
            sum += r.query(i,j);
        }
    }
    cout << sum << endl;
    return 0;
}




Compiler output:
a.cc: In member function 'int RMQ::rec(int, int, int, int, int)':
a.cc:27:16: error: 'INT_MAX' was not declared in this scope
   27 |         return INT_MAX;
      |                ^~~~~~~
a.cc:9:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    8 | #include<set>
  +++ |+#include <climits>
    9 | using namespace std;
a.cc: In member function 'void RMQ::init(int)':
a.cc:45:16: error: 'INT_MAX' was not declared in this scope
   45 |       dat[i] = INT_MAX;
      |                ^~~~~~~
a.cc:45:16: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C++

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

int main()
{
	int a[200000];
	int N;
	int i, j;
	unsigned long long ans = 0;
	unsigned long long *minwa;
	int prev;
	
	minwa = (unsigned long long *)calloc(200000, sizeof(unsigned long long));

	scanf("%d", &N);

	for (i = 0; i < N; i++)
	{
		std::cin >> a[i];
	}

	prev = a[0];
	for (i = 0; i < N; i++)
	{
		unsigned long long wa = 0;
		int min = a[i];
		for (j = 0; j < N - i; j++)
		{
			if (min > a[i + j])
			{
				min = a[i + j];
			}

			if (prev < min)
			{
				if (minwa[prev] != 0)
				{
					minwa[prev] -= prev;
				}
			}
			else if (minwa[prev] != 0)
			{
				wa += minwa[prev];
				break;
			}
			wa += min;
		}

		prev = a[i];
		minwa[prev] = wa - a[i];

		ans += wa;
	}

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

Compiler output:
a.cc: In function 'int main()':
a.cc:57:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   57 |         cout << ans << endl;
      |         ^~~~
      |         std::cout
In file included from a.cc:1:
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:57:24: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   57 |         cout << ans << endl;
      |                        ^~~~
      |                        std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

#define pb         push_back

typedef long long ll;
const ll INF = 1000000000ll;
const ll MOD = 1000000007ll;
const double EPS = 1e-8;

int main(void) {
	//ios_base::sync_with_stdio(false);
	//cin.tie(0);
	
	int n;
	vector<int> a;
	set<int> p;
	int pos[200005];
	long long ans = 0;

	cin >> n;
	for(int i=0; i<n; i++){
		int t;
		cin >> t;
		pos[t] = i;
		a.push_back(t);
	}

	p.insert(-1);
	p.insert(n);
	for(int i=1; i<=n; i++){
		//printf("%d %d %d\n", lpos[i], rpos[i], i* ((abs(lpos[i] + 1 - pos[i]) + 1) * (abs(rpos[i] - 1 - pos[i]) + 1)));
		auto l = --p.lower_bound(pos[i]);
		auto r = p.upper_bound(pos[i]);
		//cout << (*l) << ' ' << (*r) << endl;
		ans += (long long)i* (long long)(abs((*l) - pos[i])) * (long long)(abs((*r) - pos[i]) ));
		//cout << ((abs((*l) - pos[i])) * (abs((*r) - pos[i]) )) << endl;
		p.insert(pos[i]);
	}

	cout << ans<< endl;

	

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:104: error: expected ';' before ')' token
   36 |                 ans += (long long)i* (long long)(abs((*l) - pos[i])) * (long long)(abs((*r) - pos[i]) ));
      |                                                                                                        ^
      |                                                                                                        ;
Language: C++

#include <algorithm>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#define SREP(s,i,m) for(unsigned int i = s; i < m; ++i)
#define REP(i,m) SREP(0,i,m)
using namespace std;
#ifdef _MSC_VER
using LONG = __int64;
using ULONG = unsigned __int64;
#else
using LONG = long long int;
//using ULONG = unsigned long long int;
using ULONG = unsigned __int64;
#endif

int N;
vector<int> a;
set<int> used;
map<int, int> pos;
ULONG result = 0;

void calculate() {
  for (int num = 1; num <= N; num++) {
    auto prev = used.lower_bound(pos[num]);
    if (prev == used.begin()) prev = used.end();
    else prev--;
    auto next = used.upper_bound(pos[num]);
    int left, right;
    if (prev == used.end()) {
      left = pos[num];
    } else {
      left = pos[num] - *prev - 1;
    }
    if (next == used.end()) {
      right = N - pos[num] - 1;
    } else {
      right = *next - pos[num] - 1;
    }
    if (right < 0) throw runtime_error("bug 1");
    if (left < 0) throw runtime_error("bug 2");
    if (right >= N) throw runtime_error("bug 3");
    if (left >= N) throw runtime_error("bug 4");
    result += (ULONG)num * (ULONG)(right * left + right + left + 1);
    used.insert(pos[num]);
  }
}

int main(void) {
  cin >> N;
  a.resize(N);
  REP(i, N) {
    cin >> a[i];
    pos[a[i]] = i;
  }
  calculate();
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc:21:23: error: expected ';' before '__int64'
   21 | using ULONG = unsigned __int64;
      |                       ^~~~~~~~
      |                       ;
a.cc:28:1: error: 'ULONG' does not name a type; did you mean 'LONG'?
   28 | ULONG result = 0;
      | ^~~~~
      | LONG
a.cc: In function 'void calculate()':
a.cc:51:5: error: 'result' was not declared in this scope
   51 |     result += (ULONG)num * (ULONG)(right * left + right + left + 1);
      |     ^~~~~~
a.cc:51:16: error: 'ULONG' was not declared in this scope; did you mean 'LONG'?
   51 |     result += (ULONG)num * (ULONG)(right * left + right + left + 1);
      |                ^~~~~
      |                LONG
a.cc: In function 'int main()':
a.cc:64:11: error: 'result' was not declared in this scope
   64 |   cout << result << endl;
      |           ^~~~~~
Language: C++

#include <iostream>

using namespace std;

// int main(){
// 	long long int sum = 0;
// 	int n;
// 	int a[200001];

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

// 	for (int l = 0; l < n; ++l)
// 	{
// 		int min = 200001;
// 		for (int r = l; r < n; ++r)
// 		{
// 			if(min > a[r]) min = a[r];
// 			sum += min;
// 		}
// 	}
// 	cout << sum << endl;

// }


int main(){
	long long int sum = 0;
	int n;
	int a[200001][200001];

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

	for (int l = n-1; l >= 0; --l)
	{
		// int min = 200001;
		for (int r = l; r < n; ++r)
		{
			if(l == r){
			}else if(a[l][r-1] > a[r][r]){
				a[l][r] = a[r][r];
			}else{
				a[l][r] = a[l][r-1];
			}
			sum += a[l][r]
		}
	}
	cout << sum << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:52:39: error: expected ';' before '}' token
   52 |                         sum += a[l][r]
      |                                       ^
      |                                       ;
   53 |                 }
      |                 ~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <stack>
#include <queue>
#include <cmath>
#include <set>
#include <algorithm>
#include <functional>
#include <cstring>
#include <iterator>
using namespace std;
typedef long long ll;
#define rep(i,n) for(int i=0;i<n;i++)

int main()
{
	int N; cin >> N;
	vector<int>a(N);
	rep(i, N)cin >> a[i];
	ll ans = 0;

	queue<vector<int>> que;
	que.push(a);
	while (!que.empty()) {
		vector<int> v = que.front(); que.pop();
		if (v.size() == 0)continue;
		auto mn = min_element(v.begin(), v.end());
		vector<int>w, x;
		copy(v.begin(), mn, back_inserter(w));
		copy(mn+1, v.end(), back_inserter(x));
		que.push(w);
		que.push(x);
		ans += (*mn)*(distance(v.begin(), mn)+1)*(distance(mn + 1, v.end())+1);
	}

	cout << ans << endl;

	retu

Compiler output:
a.cc: In function 'int main()':
a.cc:39:9: error: 'retu' was not declared in this scope
   39 |         retu
      |         ^~~~
a.cc:39:13: error: expected '}' at end of input
   39 |         retu
      |             ^
a.cc:17:1: note: to match this '{'
   17 | {
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long  index1[200005];
map<long long ,long long > mp;
int main()
{
	int n;
	cin>>n;
	long long i,j,a;
	for(i=1;i<=n;i++)
	 {
	 	 cin>>a;
	 	 index1[a]=i;
	 }
	 mp[0]=1;
	 mp[n+1]=1;
	 long long  l,r;
	 map<long long ,long long> ::iterator it;
	 long long left,right,this_index,k,ans = 0;
	 for(i=1;i<=n;i++)
	  {
	  	 it = mp.upper_bound(index[i]);
	  	 r=it->first;
	  	 it--;
	  	 l=it->first;
	  	 k=index1[i];
	  	 this_index=(r-(l+1));
	  	 if(k!=l+1&&k!=r-1)
	  	  this_index++;
	  	 ans+=this_index*i;
	  	 mp[index1[i]]=1;
	  }
	  cout<<ans;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:43: error: invalid types '<unresolved overloaded function type>[long long int]' for array subscript
   22 |                  it = mp.upper_bound(index[i]);
      |                                           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long  index[200005];
map<long long ,long long > mp;
int main()
{
	int n;
	cin>>n;
	long long i,j,a;
	for(i=1;i<=n;i++)
	 {
	 	 cin>>a;
	 	 index[a]=i;
	 }
	 mp[0]=1;
	 mp[n+1]=1;
	 long long  l,r;
	 map<long long ,long long> ::iterator it;
	 long long left,right,this_index,k,ans = 0;
	 for(i=1;i<=n;i++)
	  {
	  	 it = mp.upper_bound(index[i]);
	  	 r=it->first;
	  	 it--;
	  	 l=it->first;
	  	 k=index[i];
	  	 this_index=(r-(l+1));
	  	 if(k!=l+1&&k!=r-1)
	  	  this_index++;
	  	 ans+=this_index*i;
	  	 mp[index[i]]=1;
	  }
	  cout<<ans;
	return 0;
}

Compiler output:
a.cc:3:24: error: 'long long int index [200005]' redeclared as different kind of entity
    3 | long long  index[200005];
      |                        ^
In file included from /usr/include/string.h:462,
                 from /usr/include/c++/14/cstring:43,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:121,
                 from a.cc:1:
/usr/include/strings.h:50:20: note: previous declaration 'const char* index(const char*, int)'
   50 | extern const char *index (const char *__s, int __c)
      |                    ^~~~~
a.cc: In function 'int main()':
a.cc:13:23: error: invalid types '<unresolved overloaded function type>[long long int]' for array subscript
   13 |                  index[a]=i;
      |                       ^
a.cc:22:43: error: invalid types '<unresolved overloaded function type>[long long int]' for array subscript
   22 |                  it = mp.upper_bound(index[i]);
      |                                           ^
a.cc:26:25: error: invalid types '<unresolved overloaded function type>[long long int]' for array subscript
   26 |                  k=index[i];
      |                         ^
a.cc:31:26: error: invalid types '<unresolved overloaded function type>[long long int]' for array subscript
   31 |                  mp[index[i]]=1;
      |                          ^
Language: C++

#include <iostream>
#include <vector>

using namespace std;

int main(){
    int N;
    cin >> N;
    vector<int> a(N);
    vector<pair<int,int> > ord(N);
    for(int i = 0; i < N; ++i){
        cin >> a[i];
        ord[i].first = a[i];
        ord[i].second = i;
    }
    sort(ord.begin(), ord.end());

    vector<int> len(N, 1);

    long long ans = 0;
    for(int i = N-1; i >= 0; --i){
        int cur = ord[i].second;
        int left = 0;
        int right = 0;
        if(cur > 0 && a[cur-1] > a[cur]){
            left = len[cur-1];
        }
        if(cur < N-1 && a[cur+1] > a[cur]){
            right = len[cur+1];
        }
        ans += (long long)(ord[i].first) * (left+1) * (right+1);
        len[cur - left] = left+right+1;
        a[cur -left] = ord[i].first;
        len[cur + right] = left+right+1;
        a[cur + right] = ord[i].first;
    }
    cout << ans << endl;
    return 0;
}


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

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

int main() {
	int minx;
	int sum = 0;
	int n;
	int *a;
	int loop;
	int loop1, loop2;

	scanf("%d", &n);
	a = malloc(sizeof(int)*n);
	for (loop = 0; loop < n; loop++)scanf("%d", &a[loop]);

	for (loop1 = 0; loop1 < n; loop1++) {
		minx = a[loop1];
		for (loop2 = loop1; loop2 < n; loop2++) {
			minx = min(minx, a[loop2]);
			sum += minx;
		}
	}
	printf("%d\n", sum);
	return 0;

}

Compiler output:
main.c: In function 'main':
main.c:19:32: error: implicit declaration of function 'min'; did you mean 'main'? [-Wimplicit-function-declaration]
   19 |                         minx = min(minx, a[loop2]);
      |                                ^~~
      |                                main
Language: C++

#include <iostream>
#include <thread>
#include <vector>

using namespace std;

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

  vector<int> v;

  for(int i = 0; i < N; i++) {
    int t;
    cin >> t;
    v.push_back(t);
  }

  atomic<unsigned long long> total(0);

  int tr = 0;
  thread a = thread([&]{
    for(int i = 0; i < N / 2; i++) {
      int r = i - 1, l = i + 1;

      if(i != 0 && v[r] > v[i])
        r = tr;

      while(r != -1 && v[r] > v[i]) { r--; }
      while(l != N && v[l] > v[i]) { l++; }

      tr = r;

      total += (unsigned long long)(i - r) * (l - i) * v[i];
    }
  });

  thread b = thread([&]{
    for(int i = N / 2; i < N; i++) {
      int r = i - 1, l = i + 1;

      if(i != 0 && v[r] > v[i])
        r = tr;

      while(r != -1 && v[r] > v[i]) { r--; }
      while(l != N && v[l] > v[i]) { l++; }

      tr = r;

      total += (unsigned long long)(i - r) * (l - i) * v[i];
    }
  });

  cout << total << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:19:3: error: 'atomic' was not declared in this scope
   19 |   atomic<unsigned long long> total(0);
      |   ^~~~~~
a.cc:4:1: note: 'std::atomic' is defined in header '<atomic>'; this is probably fixable by adding '#include <atomic>'
    3 | #include <vector>
  +++ |+#include <atomic>
    4 | 
a.cc:19:10: error: expected primary-expression before 'unsigned'
   19 |   atomic<unsigned long long> total(0);
      |          ^~~~~~~~
a.cc: In lambda function:
a.cc:34:7: error: 'total' was not declared in this scope
   34 |       total += (unsigned long long)(i - r) * (l - i) * v[i];
      |       ^~~~~
a.cc: In lambda function:
a.cc:50:7: error: 'total' was not declared in this scope
   50 |       total += (unsigned long long)(i - r) * (l - i) * v[i];
      |       ^~~~~
a.cc: In function 'int main(int, const char**)':
a.cc:54:11: error: 'total' was not declared in this scope
   54 |   cout << total << endl;
      |           ^~~~~
Language: C++

#include <iostream>
#include <array>
#include <vector>
#include <map>
#include <utility>
#include <cstring>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <string>
#include <limits>

using namespace std;


int n_;
int n;
//int height;
int *pt;

void makeTable(int size_){
    int size=1;
    while(size < size_) size*=2;
    pt = new int [2*size-1];
    for (int i = 0; i < 2*size-1; i++) {
        pt[i] = INT_MAX;
    }
    n = size;
}

void load(int index, int val){
    int index2 = index + n -1;
    pt[index2] = val;
    while (index2 > 0) {
        index2 = (index2-1)/2;
        pt[index2] = min(pt[index2 * 2 +1], pt[2*index2 + 2]);
    }
}

int getMin(int start, int end,int k, int l, int r){
    if (end <= l || r <= start) {
        return INT_MAX;
    }
    
    if (start <= l && r <= end) {
        return pt[k];
    }else{
        int rl = getMin(start, end, 2*k+1, l, (l+r)/2);
        int rr = getMin(start, end, 2*k+2, (l+r)/2, r);
        return min(rl, rr);
    }
}



int main(int argc, const char * argv[]) {
    
    cin >>n_;
    makeTable(n_);
    
    for (int i = 0 ; i < n_; i ++) {
        int a;
        cin >>a;
        load(i, a);
    }
    
    long long sum = 0;
    
    for (int i = 0 ; i < n_; i++) {
        for (int j = i; j < n_; j++) {
            int min =getMin(i, j+1, 0, 0, n);
            sum +=min;
        }
    }
    
    cout << sum <<endl;
    
    return 0;
}


Compiler output:
a.cc: In function 'void makeTable(int)':
a.cc:30:17: error: 'INT_MAX' was not declared in this scope
   30 |         pt[i] = INT_MAX;
      |                 ^~~~~~~
a.cc:14:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   13 | #include <set>
  +++ |+#include <climits>
   14 | #include <string>
a.cc: In function 'int getMin(int, int, int, int, int)':
a.cc:46:16: error: 'INT_MAX' was not declared in this scope
   46 |         return INT_MAX;
      |                ^~~~~~~
a.cc:46:16: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C++

#include <iostream>
#include <array>
#include <vector>
#include <map>
#include <utility>
#include <cstring>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <string>

using namespace std;


int n_;
int n;
int height;
vector<int> st;

int *pt;

void makeTable(int size_){
    int size=1;
    while(size < size_) size*=2;
    pt = new int [2*size-1];
    for (int i = 0; i < 2*size-1; i++) {
        pt[i] = INT_MAX;
    }
    n = size;
}

void load(int index, int val){
    int index2 = index + n -1;
    pt[index2] = val;
    while (index2 > 0) {
        index2 = (index2-1)/2;
        pt[index2] = min(pt[index2 * 2 +1], pt[2*index2 + 2]);
    }
}

int getMin(int start, int end,int k, int l, int r){
    if (end <= l || r <= start) {
        return INT_MAX;
    }
    
    if (start <= l && r <= end) {
        return pt[k];
    }else{
        int rl = getMin(start, end, 2*k+1, l, (l+r)/2);
        int rr = getMin(start, end, 2*k+2, (l+r)/2, r);
        return min(rl, rr);
    }
}

long long getSum(){
    makeTable(n_);
    for (int i = 0 ; i < n_; i ++) {
        load(i, st[i]);
    }
    
//    for (int i = 0 ; i < 2*n ; i ++) {
//        cout << pt[i] <<endl;
//    }
    
    long long sum = 0;
    for (int i = 0 ; i < n_; i++) {
        for (int j = i; j < n_; j++) {
            int min =getMin(i, j+1, 0, 0, n);
//            cout << "min;"  << i << "  " << j <<"  "  << min << endl;
            sum +=min;
        }
    }
    return sum;
}


int main(int argc, const char * argv[]) {
    
    cin >>n_;
    
    
    int a;
    for (int i = 0; i<n_; i++) {
        cin >>a;
        st.push_back(a);
    }
    
    
    
    cout << getSum() <<endl;
    
    
    return 0;
}


Compiler output:
a.cc: In function 'void makeTable(int)':
a.cc:31:17: error: 'INT_MAX' was not declared in this scope
   31 |         pt[i] = INT_MAX;
      |                 ^~~~~~~
a.cc:14:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   13 | #include <set>
  +++ |+#include <climits>
   14 | #include <string>
a.cc: In function 'int getMin(int, int, int, int, int)':
a.cc:47:16: error: 'INT_MAX' was not declared in this scope
   47 |         return INT_MAX;
      |                ^~~~~~~
a.cc:47:16: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C++

#include<iostream>
#include<string>
#include<cstring>
#include<cstdio>
#include<cmath>
#include <utility>
#include<cstdlib>
#include<vector>
#include<set>
#include<map>
#include<list>
#include<queue>
#include<functional>
#include<algorithm>
#define ms0(a) memset(a,0,sizeof(a))
#define ms1(a) memset(a,-1,sizeof(a))
#define pb(a) push_back(a)
using namespace std;
//typedef long long  ll;
typedef __int64  ll;
const double Eps = (double)0.5;
const int M = 1e9 + 7;
const int N = 2e5+ 5 ;
const double PI = acos(-1.0);

int a[N];
int pos[N];

int STEP;
int c[N];

int lowbit(int x)
{
    return x&(-x);
}

void update(int i, int x)
{
    while(i <= STEP)
    {
        c[i] += x;
        i += lowbit(i);
    }
}

int getsum( int x )
{
    int sum = 0;
    while( x > 0 )
    {
        sum += c[x];
        x -= lowbit(x);
    }
    return sum;
}

int getl( int step )
{
    int l = 0, r = step - 1, mid;
    int sm = getsum(step);
    while(l <= r)
    {
        mid = (l + r)/2;
        if( sm - getsum(mid) == 1)
            r = mid - 1;
        else
            l = mid + 1;
    }
    return l + 1;
}

int getr( int step )
{
    int l = step, r = STEP, mid;
    int sm = getsum(step);
    while(l <= r)
    {
        mid = (l + r)/2;
        if(getsum(mid) - sm == 0)
            l = mid + 1;
        else
            r = mid - 1;
    }
    return l - 1;
}



int main()
{
    int n;
    cin>>n;
    for(int i=1; i<=n; i++)
    {
        scanf("%d",&a[i]);
        pos[a[i]] = i;
    }
    STEP = n;
    ll asr = 0;
    for(int i=1; i<=n; i++)
    {
        update(pos[i], 1);
        int l = getl(pos[i]);
        int r = getr(pos[i]);
        asr += (ll)(pos[i] - l) * (r - pos[i]) * i;
        asr +=  (pos[i] - l + 1 + r - pos[i]) * i;
    }
    printf("%I64d\n",asr);
    //cout<<asr<<endl;
    return 0;
}


Compiler output:
a.cc:20:9: error: '__int64' does not name a type; did you mean '__int64_t'?
   20 | typedef __int64  ll;
      |         ^~~~~~~
      |         __int64_t
a.cc: In function 'int main()':
a.cc:99:5: error: 'll' was not declared in this scope
   99 |     ll asr = 0;
      |     ^~
a.cc:105:9: error: 'asr' was not declared in this scope
  105 |         asr += (ll)(pos[i] - l) * (r - pos[i]) * i;
      |         ^~~
a.cc:108:22: error: 'asr' was not declared in this scope
  108 |     printf("%I64d\n",asr);
      |                      ^~~
Language: C++

//C++14 (Clang 3.8.0)

#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <string>
#define rp(i,a,b) for(int (i)=(int)(a);i<(int)(b);++i)

using namespace std;

typedef long long ll;

using namespace std;

class RMQ{
  private:
    static const int MAX_N = 1 << 17;
    int n, dat[2*MAX_N -1];
    int rec(int a,int b,int k,int l,int r){
      if(b <= l || r <= a){
        return INT_MAX;
      }

      if(a<=l && r<=b){
        return dat[k];
      }else{
        int rl = rec(a,b,2*k+1,l,(l+r)/2);
        int rr = rec(a,b,2*k+2,(l+r)/2,r);
        return min(rl,rr);
      }
    }

  public:
    void init(int n_){
      n=1;
      while(n < n_) n*=2;

      for(int i=0;i<2*n-1;i++){
      dat[i] = INT_MAX;
      }
    }

    //kをaに変更
    void update(int k, int a){
      int reaf = k+n-1;
      dat[reaf]=a;
      while(reaf>0){
        reaf = (reaf-1)/2;
        dat[reaf]=min(dat[reaf*2+1],dat[2*reaf+2]);
      }
    }

    //query[a,b]の範囲内の最小値を返す
    int query(int a,int b){
      return rec(a,b+1,0,0,n);
    }
};


int main(){
    int N;
    vector<int> a;
    cin>>N;
    rp(i,0,N){int A;cin>>A;a.push_back(A);}
    int ans=0;
    
    RMQ r;
    r.init(200001);
    rp(i,0,N) r.update(i,a[i]);
    rp(i,0,N){
        rp(j,i,N){
            //int min=200001;
            //rp(k,i,j+1) {if(min>a[k]) min=a[k];}
            int min=r.query(i,j);
            rp(k,i,j+1) cout<<a[k]<<" ";
            cout<<"min"<<min;
            cout<<endl;
            min=r.query(i,j);
            ans+=min;
        }
    }

    cout<<ans<<endl;

        return 0;
};


Compiler output:
a.cc: In member function 'int RMQ::rec(int, int, int, int, int)':
a.cc:37:16: error: 'INT_MAX' was not declared in this scope
   37 |         return INT_MAX;
      |                ^~~~~~~
a.cc:22:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   21 | #include <ctime>
  +++ |+#include <climits>
   22 | #include <string>
a.cc: In member function 'void RMQ::init(int)':
a.cc:55:16: error: 'INT_MAX' was not declared in this scope
   55 |       dat[i] = INT_MAX;
      |                ^~~~~~~
a.cc:55:16: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C++

#include <vector>
#include <cassert>
#include <algorithm>
#ifdef _WIN32
inline unsigned int __builtin_clz(unsigned int x) {
	unsigned long r;
	_BitScanReverse(&r, x);
	return 31 - r;
}
#endif

template<class Type>
class SparseTable {
private:
	std::vector<std::vector<Type> > st;
public:
	void init(std::vector<Type> v) {
		int b = 0;
		for (; (1 << b) <= v.size(); b++);
		st.assign(b, std::vector<Type>(1 << b));
		for (int i = 0; i < v.size(); i++) st[0][i] = v[i];
		for (int i = 1; i < b; i++) {
			for (int j = 0; j + (1 << i) <= (1 << b); j++) {
				st[i][j] = min(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]);
			}
		}
	}
	Type query(int l, int r) {
		assert(l < r);
		int b = 32 - __builtin_clz(r - l) - 1;
		return std::min(st[b][l], st[b][r - (1 << b)]);
	}
	SparseTable() {}
	SparseTable(std::vector<Type> v) { init(v); }
};
#include <iostream>
#include <algorithm>
using namespace std;
int n; vector<int> a;
int main() {
	cin >> n; a.resize(n);
	for (int i = 0; i < n; i++) cin >> a[i];
	vector<int> b(a);
	reverse(b.begin(), b.end());
	SparseTable<int> st(a), st2(b);
	vector<int> p(n), q(n);
	for (int i = 0; i < n; i++) {
		int l = 0, r = i + 1;
		while (r - l > 1) {
			int m = (l + r) / 2;
			if (st.query(m, i + 1) != a[i]) l = m;
			else r = m;
		}
		if(st.query(l, i + 1) == a[i]) p[i] = l;
		else p[i] = r;
	}
	for (int i = 0; i < n; i++) {
		int l = 0, r = i + 1;
		while (r - l > 1) {
			int m = (l + r) / 2;
			if (st2.query(m, i + 1) != b[i]) l = m;
			else r = m;
		}
		if (st2.query(l, i + 1) == b[i]) q[n - i - 1] = n - l;
		else q[n - i - 1] = n - r;
	}
	long long ret = 0;
	for (int i = 0; i < n; i++) ret += 1LL * (i - p[i] + 1) * (q[i] - i) * a[i];
	cout << ret << endl;
	return 0;
}

Compiler output:
a.cc: In instantiation of 'void SparseTable<Type>::init(std::vector<Type>) [with Type = int]':
a.cc:34:37:   required from 'SparseTable<Type>::SparseTable(std::vector<Type>) [with Type = int]'
   34 |         SparseTable(std::vector<Type> v) { init(v); }
      |                                            ^~~~
a.cc:45:23:   required from here
   45 |         SparseTable<int> st(a), st2(b);
      |                              ^
a.cc:24:47: error: 'min' was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
   24 |                                 st[i][j] = min(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]);
      |                                            ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)' declared here, later in the translation unit
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
Language: C

#include <stdio.h>

int N, a[212345], tmp = 0;
__int64 ans;

int main(void) {
	scanf("%d", &N);
	for (int i = 0; i < N; ++i) { scanf("%d", &a[i]); }

	for (int l = 0; l < N; ++l) {
		for (int r = l; r < N; ++r) {
			for (int i = l; i <= r; ++i) {
				if (i == l) { tmp = a[i]; }
				if (tmp > a[i]) { tmp = a[i]; }
			}
			ans += tmp;
		}
	}

	printf("%I64d", ans);

	return 0;
}

Compiler output:
main.c:4:1: error: unknown type name '__int64'; did you mean '__int64_t'?
    4 | __int64 ans;
      | ^~~~~~~
      | __int64_t
Language: C

#include <stdio.h>
#include <algorithm>

using namespace std;

int N, a[212345], tmp = 0;
__int64 ans;

int main(void) {
	scanf("%d", &N);
	for (int i = 0; i < N; ++i) { scanf("%d", &a[i]); }

	for (int l = 0; l < N; ++l) {
		for (int r = l; r < N; ++r) {
			for (int i = l; i <= r; ++i) {
				if (i == l) { tmp = a[i]; }
				if (tmp > a[i]) { tmp = a[i]; }
			}
			ans += tmp;
		}
	}

	printf("%I64d", ans);

	return 0;
}

Compiler output:
main.c:2:10: fatal error: algorithm: No such file or directory
    2 | #include <algorithm>
      |          ^~~~~~~~~~~
compilation terminated.
Language: C++

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

using namespace std;

const long long int MAX_N = 1<<17;

long long int n, dat[2*MAX_N-1];

void init(long long int n_) {
	n = 1;
	while (n < n_) n *= 2;

	for (long long int i = 0; i < 2*n-1; i++) dat[i] = INT_MAX;
}

void update(long long int k, long long int a) {
	k += n-1;
	dat[k] = a;
	while (k > 0) {
		k = (k-1)/2;
		dat[k] = min(dat[k*2+1], dat[k*2+2]);
	}
}

long long int query(long long int a, long long int b, long long int k, long long int l, long long int r) {
	if (r <= a || b <= l) return INT_MAX;

	if (a <= l && r <= b) return dat[k];
	else {
		long long int vl = query(a, b, k*2+1, l, (l+r)/2);
		long long int vr = query(a, b, k*2+2, (l+r)/2, r);
		return min(vl, vr);
	}
}

int main() {
	long long int nn;
	cin >> nn;
	init(nn);
	long long int a;
	for (long long int i = 0; i < nn; i++) {
		cin >> a;
		update(i, a);
	}
	long long int sum = 0;
	/*for (long long int i = 0; i < 8; i++) {
		cout << dat[i] << endl;
	}*/
	for (long long int i = 0; i < nn; i++) {
		for (long long int j = i; j < nn; j++) {
			sum += query(i, j+1, 0, 0, n);
			//cout << i << ' ' << j << ' ' << query(i, j, 0, 0, n) << endl;
		}
	}
	cout << sum << endl;
	return 0;
}

Compiler output:
a.cc: In function 'void init(long long int)':
a.cc:15:60: error: 'INT_MAX' was not declared in this scope
   15 |         for (long long int i = 0; i < 2*n-1; i++) dat[i] = INT_MAX;
      |                                                            ^~~~~~~
a.cc:4:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    3 | #include <cmath>
  +++ |+#include <climits>
    4 | 
a.cc: In function 'long long int query(long long int, long long int, long long int, long long int, long long int)':
a.cc:28:38: error: 'INT_MAX' was not declared in this scope
   28 |         if (r <= a || b <= l) return INT_MAX;
      |                                      ^~~~~~~
a.cc:28:38: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
Language: C

#include<stdio.h>

#define min(x, y) ((x > y)? y : x)

int a[200000];
int N;

void hoge(void){
    int i;
    
    for(i = 0; i < N - 1; i++) a[i] = min(a[i], a[i+1]);
    N--;
}



int main(void){
    __int64 ans = 0;
    int i;
    
    scanf("%ld", &N);
    
    for(i = 0; i < N; i++){
        scanf("%ld", &(a[i]));
    }
    
    while(N >= 2){
        for(i = 0; i < N; i++) ans += a[i];
        hoge();
    }
    
    printf("%I64d\n", ans + a[0]);
    
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:18:5: error: unknown type name '__int64'; did you mean '__int64_t'?
   18 |     __int64 ans = 0;
      |     ^~~~~~~
      |     __int64_t
Language: C++

#include<iostream>
using namespace std;
int main()
{
	int n;
	cin>>n;
	int Array[n];
	for(int i=0;i<n;i++)
		cin>>Array[i];
	long long ans=0;
	for(int i=0;i<n;i++)
	{
		int x=INT_MAX;
		for(int j=i;j<n;j++)
		{
			x=min(x,Array[j]);
			ans+=x;
		}
	}
	cout<<ans<<"\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:23: error: 'INT_MAX' was not declared in this scope
   13 |                 int x=INT_MAX;
      |                       ^~~~~~~
a.cc:2:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include<iostream>
  +++ |+#include <climits>
    2 | using namespace std;
Language: C++

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

void ans(bool b) {
    cout << (b ? "Possible" : "Impossible") << endl;
    exit(0);
}

int main() {
    int64_t N;
    cin >> N;
    vector<int64_t> a(N);
    for (int64_t& A : a) {
        cin >> A;
    }

    int64_t one_num = count(a.begin(), a.end(), 1);
    if (one_num == 1) {
        //1のものが中心のスターグラフじゃないとダメ
        //1以外のものは全て2じゃないとおかしい
        //逆にそうであれば構築可能
        int64_t two_num = count(a.begin(), a.end(), 2);
        ans(two_num == N - 1);
    } else if (one_num >= 2) {
        ans(N == 2);
    }

    int64_t max_value = *max_element(a.begin(), a.end());
    int64_t max_num = count(a.begin(), a.end(), max_value);

    if (max_num == 1) {
        ans(false);
    }

    //ここまではとりあえず合っている
    //maxを両端にして一列に並べるようなものを考える
    int64_t min_value = (max_value + 1) / 2;
    int64_t ng_num = count_if(a.begin(), a.end(), [min_value](int64_t v) { v < min_value; });
    if (ng_num > 0) {
        ans(false);
    }

    assert(false);
}

Compiler output:
In file included from /usr/include/c++/14/bits/stl_algobase.h:71,
                 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/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_pred<_Predicate>::operator()(_Iterator) [with _Iterator = __gnu_cxx::__normal_iterator<long int*, std::vector<long int> >; _Predicate = main()::<lambda(int64_t)>]':
/usr/include/c++/14/bits/stl_algobase.h:2163:12:   required from 'typename std::iterator_traits< <template-parameter-1-1> >::difference_type std::__count_if(_InputIterator, _InputIterator, _Predicate) [with _InputIterator = __gnu_cxx::__normal_iterator<long int*, vector<long int> >; _Predicate = __gnu_cxx::__ops::_Iter_pred<main()::<lambda(int64_t)> >; typename iterator_traits< <template-parameter-1-1> >::difference_type = long int]'
 2163 |         if (__pred(__first))
      |             ~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:4057:29:   required from 'typename std::iterator_traits< <template-parameter-1-1> >::difference_type std::count_if(_IIter, _IIter, _Predicate) [with _IIter = __gnu_cxx::__normal_iterator<long int*, vector<long int> >; _Predicate = main()::<lambda(int64_t)>; typename iterator_traits< <template-parameter-1-1> >::difference_type = long int]'
 4057 |       return std::__count_if(__first, __last,
      |              ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
 4058 |                              __gnu_cxx::__ops::__pred_iter(__pred));
      |                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:38:30:   required from here
   38 |     int64_t ng_num = count_if(a.begin(), a.end(), [min_value](int64_t v) { v < min_value; });
      |                      ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/predefined_ops.h:318:30: error: void value not ignored as it ought to be
  318 |         { return bool(_M_pred(*__it)); }
      |                       ~~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vec;
typedef vector<vec> mat;
typedef pair<ll,ll> pll;
const ll mod=1e9+7;
//const ll mod=998244353;
const ll inf=1LL<<61;

int main() {
  ll n;
  cin >> n;
  vec a(n);
  for(ll i=0;i<n;i++) cin >> a[i];
  sort(a.begin(),a.end());
  ll mx=a[n-1];
  vec cnt(mx+1);
  for(ll i=0;i<n;i++) {
    cnt[a[i]]++;
  }
  ll f=1;
  for(ll i=0;i<=mx;i++) {
    if(cnt[i]&&i<mx/2) f=0;
    if(mx%2==0&&i==mx/2&&cnt[i]!=2) f=0;
    if(mx%2&&i=mx/2&&cnt[i]!=1) f=0;
    if(i>mx/2&&!cnt[i]) f=0;
  }
  if(f) cout << "Possible" << endl;
  else cout << "Impossible" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:12: error: lvalue required as left operand of assignment
   26 |     if(mx%2&&i=mx/2&&cnt[i]!=1) f=0;
      |        ~~~~^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define ALL(v) (v).begin(), (v).end()
using ll = long long;
using P = pair<int, int>;
const int INF = 1e9;
const long long LINF = 1e18;
const long long MOD = 1e9 + 7;

signed main() {
    int n;
    cin >> n;
    int mx = 0;
    int a[n];
    rep(i, n) {
        cin >> a[i];
        mx = max(mx, a[i]);
    }
    int mn = (mx + 1) / 2;
    sort(a, a + n);
    if (mx % 2 == 0) {
        if (a[0] != mn || a[1] == mn) {
            cout << "Impossible" << endl;
            return 0;
        }
    } else {
        if (a[0] != mn || a[1] != mn || a[2] == mn) {
            cout << "Impossible" << endl;
            return 0;
        }
    }
    int cnt[mx + 1] = {};
    for (int i = (mx % 2 == 0 ? 1 : 2); i < n; i++) {
        cnt[a[i]]++;
    }
    for (int i = t + 1; i <= mx; i++){
        if(cnt[i] < 2){
            cout << "Impossible" << endl;
            return 0;
        }
    }
    cout << "Possible" << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:18: error: 't' was not declared in this scope
   37 |     for (int i = t + 1; i <= mx; i++){
      |                  ^
Language: C++

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

int o;
int n, m;

int main() {
  	cin >> n;
  	for (int i = 0; i < n; i++) {
     	cin >> m;
      if (m == 1)
        o++;
    }     
     
  if (o > 1 && n > 2)
 	cout << "Impossible";
  else
    cout << "Possible"
 	return 0;
}	

Compiler output:
a.cc: In function 'int main()':
a.cc:18:23: error: expected ';' before 'return'
   18 |     cout << "Possible"
      |                       ^
      |                       ;
   19 |         return 0;
      |         ~~~~~~