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

#include<bits/stdc++.h>

const int MX=100005;

using namespace std;
int n,f[MX],x[MX];
vector<int>G[MX];
void dfs(int k){
	int c=0;
	for(auto i:G[k])dfs(i),x[++c]=f[i];
	if(c){sort(x+1,x+c+1);for(int i=1;i<=c;i++)f[k]=max(f[k],x[c-i+1]+i);}
}
int main(){
	cin>>n;
	for(int i=2,u;i<=n;i++)cin>>u,G[u].pb(i);
	dfs(1);
	cout<<f[1]<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:44: error: 'class std::vector<int>' has no member named 'pb'
   15 |         for(int i=2,u;i<=n;i++)cin>>u,G[u].pb(i);
      |                                            ^~
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<cstring>
#include<cstdio>
#include<cmath>
#include<cstdlib>
#include<ctime>
#include<queue>
#include<set>
#include<map>
#include<stack>
using namespace std;
typedef long long LL;
const int N=2e5;
int gi() {
	int w=0;bool q=1;char c=getchar();
	while ((c<'0'||c>'9') && c!='-') c=getchar();
	if (c=='-') q=0,c=getchar();
	while (c>='0'&&c <= '9') w=w*10+c-'0',c=getchar();
	return q? w:-w;
}
int head[N],next[N];
int st[N],f[N];
inline void dfs(int k) {
	int i,len=0;
	for (i=head[k];i;i=next[i])
		dfs(i);
	for (i=head[k];i;i=next[i]) st[++len]=f[i];
	sort(st+1,st+1+len);
	for (i=1;i<=len;i++)
		f[k]=max(f[k],st[i]+1+len-i);
}
int main()
{
	int n=gi(),i,k;
	for (i=2;i<=n;i++) next[i]=head[k=gi()],head[k]=i;
	dfs(1);
	cout<<f[1]<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'void dfs(int)':
a.cc:27:28: error: reference to 'next' is ambiguous
   27 |         for (i=head[k];i;i=next[i])
      |                            ^~~~
In file included from /usr/include/c++/14/string:47,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:232:5: note: candidates are: 'template<class _InputIterator> constexpr _InputIterator std::next(_InputIterator, typename iterator_traits<_Iter>::difference_type)'
  232 |     next(_InputIterator __x, typename
      |     ^~~~
a.cc:23:13: note:                 'int next [200000]'
   23 | int head[N],next[N];
      |             ^~~~
a.cc:29:28: error: reference to 'next' is ambiguous
   29 |         for (i=head[k];i;i=next[i]) st[++len]=f[i];
      |                            ^~~~
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:232:5: note: candidates are: 'template<class _InputIterator> constexpr _InputIterator std::next(_InputIterator, typename iterator_traits<_Iter>::difference_type)'
  232 |     next(_InputIterator __x, typename
      |     ^~~~
a.cc:23:13: note:                 'int next [200000]'
   23 | int head[N],next[N];
      |             ^~~~
a.cc: In function 'int main()':
a.cc:37:28: error: reference to 'next' is ambiguous
   37 |         for (i=2;i<=n;i++) next[i]=head[k=gi()],head[k]=i;
      |                            ^~~~
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:232:5: note: candidates are: 'template<class _InputIterator> constexpr _InputIterator std::next(_InputIterator, typename iterator_traits<_Iter>::difference_type)'
  232 |     next(_InputIterator __x, typename
      |     ^~~~
a.cc:23:13: note:                 'int next [200000]'
   23 | int head[N],next[N];
      |             ^~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
int N;
int ans;
vector <int> G[100001];
int sum = 0;
int dfs(int v,int p) {

  for(int i = 0; i < G[v].size(); i++) {
    int u = G[v][i];
    if(u != p) {
      
      sum = dfs(u,v);
      //cout <<v<<"   "<< sum <<endl;
      
    }
  }
  return sum + 1;
}

  
  
int main() {

  cin >> N;

  for(int i = 1; i < N; i++) {
    int a;
    cin >> a;
    a--;
    G[i].push_back(a);
    G[a].push_back(i);
  }

  
  for(int i = 0; i < G[0].size(); i++) {
    sum = 0;
    ans = max(ans,dfs(G[0][i],0));
    //cout <<"G[0][i] = "<<dfs(G[0][i],0) <<endl;
  }

  cout << ans << endl;
}
#include <bits/stdc++.h>

using namespace std;
int N;
int ans;
vector <int> G[100001];
int sum = 0;
int dfs(int v,int p) {

  for(int i = 0; i < G[v].size(); i++) {
    int u = G[v][i];
    if(u != p) {
      
      sum = dfs(u,v);
      //cout <<v<<"   "<< sum <<endl;
      
    }
  }
  return sum + 1;
}

  
  
int main() {

  cin >> N;

  for(int i = 1; i < N; i++) {
    int a;
    cin >> a;
    a--;
    G[i].push_back(a);
    G[a].push_back(i);
  }

  
  for(int i = 0; i < G[0].size(); i++) {
    sum = 0;
    ans = max(ans,dfs(G[0][i],0));
    //cout <<"G[0][i] = "<<dfs(G[0][i],0) <<endl;
  }

  cout << ans << endl;
}


Compiler output:
a.cc:48:5: error: redefinition of 'int N'
   48 | int N;
      |     ^
a.cc:4:5: note: 'int N' previously declared here
    4 | int N;
      |     ^
a.cc:49:5: error: redefinition of 'int ans'
   49 | int ans;
      |     ^~~
a.cc:5:5: note: 'int ans' previously declared here
    5 | int ans;
      |     ^~~
a.cc:50:14: error: redefinition of 'std::vector<int> G [100001]'
   50 | vector <int> G[100001];
      |              ^
a.cc:6:14: note: 'std::vector<int> G [100001]' previously declared here
    6 | vector <int> G[100001];
      |              ^
a.cc:51:5: error: redefinition of 'int sum'
   51 | int sum = 0;
      |     ^~~
a.cc:7:5: note: 'int sum' previously defined here
    7 | int sum = 0;
      |     ^~~
a.cc:52:5: error: redefinition of 'int dfs(int, int)'
   52 | int dfs(int v,int p) {
      |     ^~~
a.cc:8:5: note: 'int dfs(int, int)' previously defined here
    8 | int dfs(int v,int p) {
      |     ^~~
a.cc:68:5: error: redefinition of 'int main()'
   68 | int main() {
      |     ^~~~
a.cc:24:5: note: 'int main()' previously defined here
   24 | int main() {
      |     ^~~~
Language: C++

#include <iostream>
#include <vector>
using namespace std;
typedef long long lli;
lli n;
vector<vector<lli> > g;
lli ans = 0;
lli dfs(lli x){
    lli ret = 0;
    vector<lli> d;
    for(lli i = 0;i < g[x].size();i++){
        d.push_back(dfs(g[x][i]));
    }
    sort(d.rbegin(),d.rend());
    for(lli i = 0;i < d.size();i++){
        ret = max(ret,d[i]+i+1);
    }
    return ret;
}
int main(){
    cin >> n;
    g = vector<vector<lli> > (n+1);
    for(lli i = 2;i <= n;i++){
        lli a;
        cin >> a;
        g[a].push_back(i);
    }
    cout << dfs(1) << endl;
    return 0;
}

Compiler output:
a.cc: In function 'lli dfs(lli)':
a.cc:14:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |     sort(d.rbegin(),d.rend());
      |     ^~~~
      |     short
Language: C++

#include<string>
#include<iostream>
#include<algorithm>
#include<set>
#include<math.h>
#include<vector>
#include<sstream>
#include<queue>
#include<functional>
#include<bitset>
#include<cstdio>
#include<iomanip>
#include <cstring>
#include <climits>
using namespace std;
#define REP(i,n) for(int i=0;i < n; i++)
#define RREP(i,n) for(int i=n-1;i >=0; i--)
#define p(a) (a) * (a)
#define p2(a,b) p((a) - (b)) 
#define MAX 101
#define MAX_V 15
int n, i, j, k;
int f[100005], son[100005], Next[100005];
int id[100005]; void dfs(int x)
{
	if (!son[x])return;
	int i, j, k = 0;
	for (i = son[x]; i; i = Next[i])dfs(i);
	for (i = son[x]; i; i = Next[i])id[++k] = i;
	sort(id + 1, id + k + 1, cmp);
	for (i = 1; i <= k; ++i)
	{
		j = f[id[i]] + i;
		if (j>f[x])f[x] = j;
	}
}
int main() {
	cin >> n;
	for (int i = 2; i <= n; i++) {
		cin >> k;
		Next[i] = son[k];
		son[k] = i;
	}
	dfs(1);
	cout << f[i] << endl;
	return 0;
}

Compiler output:
a.cc: In function 'void dfs(int)':
a.cc:30:34: error: 'cmp' was not declared in this scope; did you mean 'bcmp'?
   30 |         sort(id + 1, id + k + 1, cmp);
      |                                  ^~~
      |                                  bcmp
Language: Java

public class Main {
    
    static int n;
    static int[] a;
    static int[] dp;
    static Node[] node;
    public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        n=Integer.parseInt(br.readLine());
        a=new int[n-1];
        dp=new int[n+1];
        node=new Node[n+1];
        for(int i=0;i<n+1;i++){ node[i]=new Node(); }
        Arrays.fill(dp,-1);
        for(int i=0;i<n-1;i++){
            a[i]=Integer.parseInt(br.readLine());
            node[a[i]].next_list.add(i+2);
        }System.out.println(dfs(1));
    }
    
    static int dfs(int target){
        //System.out.println("target="+target);
        if(dp[target]!=-1){ return dp[target]; }
        int count=0;
        int ret=0;
        int[] temp=new int[node[target].next_list.size()];
        for(int i=0;i<temp.length;i++){
            temp[i]=dfs(node[target].next_list.get(i));
        }
        Arrays.sort(temp);
        
        dp[target]=(temp.length==0) ? 0:temp[temp.length-1]+1;
        return dp[target];
    }
}

class Node{
    ArrayList<Integer> next_list=new ArrayList<>();
}

Compiler output:
Main.java:7: error: cannot find symbol
    public static void main(String[] args) throws IOException {
                                                  ^
  symbol:   class IOException
  location: class Main
Main.java:38: error: cannot find symbol
    ArrayList<Integer> next_list=new ArrayList<>();
    ^
  symbol:   class ArrayList
  location: class Node
Main.java:8: error: cannot find symbol
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        ^
  symbol:   class BufferedReader
  location: class Main
Main.java:8: error: cannot find symbol
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
                              ^
  symbol:   class BufferedReader
  location: class Main
Main.java:8: error: cannot find symbol
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
                                                 ^
  symbol:   class InputStreamReader
  location: class Main
Main.java:14: error: cannot find symbol
        Arrays.fill(dp,-1);
        ^
  symbol:   variable Arrays
  location: class Main
Main.java:30: error: cannot find symbol
        Arrays.sort(temp);
        ^
  symbol:   variable Arrays
  location: class Main
Main.java:38: error: cannot find symbol
    ArrayList<Integer> next_list=new ArrayList<>();
                                     ^
  symbol:   class ArrayList
  location: class Node
8 errors
Language: Java

public class Main {
    
    static int n;
    static int[] a;
    static int[] dp;
    static Node[] node;
    public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        n=Integer.parseInt(br.readLine());
        a=new int[n-1];
        dp=new int[n+1];
        node=new Node[n+1];
        for(int i=0;i<n+1;i++){ node[i]=new Node(); }
        Arrays.fill(dp,-1);
        for(int i=0;i<n-1;i++){
            a[i]=Integer.parseInt(br.readLine());
            node[a[i]].next_list.add(i+2);
        }System.out.println(dfs(1));
    }
    
    static int dfs(int target){
        //System.out.println("target="+target);
        if(dp[target]!=-1){ return dp[target]; }
        int count=0;
        int ret=0;
        int[] temp=new int[node[target].next_list.size()];
        for(int i=0;i<temp.length;i++){
            temp[i]=dfs(node[target].next_list.get(i));
        }
        Arrays.parallelSort(temp);
        
        dp[target]=(temp.length==0) ? 0:temp[temp.length-1]+1;
        return dp[target];
    }
}

class Node{
    ArrayList<Integer> next_list=new ArrayList<>();
}

Compiler output:
Main.java:7: error: cannot find symbol
    public static void main(String[] args) throws IOException {
                                                  ^
  symbol:   class IOException
  location: class Main
Main.java:38: error: cannot find symbol
    ArrayList<Integer> next_list=new ArrayList<>();
    ^
  symbol:   class ArrayList
  location: class Node
Main.java:8: error: cannot find symbol
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        ^
  symbol:   class BufferedReader
  location: class Main
Main.java:8: error: cannot find symbol
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
                              ^
  symbol:   class BufferedReader
  location: class Main
Main.java:8: error: cannot find symbol
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
                                                 ^
  symbol:   class InputStreamReader
  location: class Main
Main.java:14: error: cannot find symbol
        Arrays.fill(dp,-1);
        ^
  symbol:   variable Arrays
  location: class Main
Main.java:30: error: cannot find symbol
        Arrays.parallelSort(temp);
        ^
  symbol:   variable Arrays
  location: class Main
Main.java:38: error: cannot find symbol
    ArrayList<Integer> next_list=new ArrayList<>();
                                     ^
  symbol:   class ArrayList
  location: class Node
8 errors
Language: C++

#include<iostream>
#include<cmath>
#include<stdio.h>
#include<vector>
#include<string>
using namespace std;

vector<int> AA[100000];

int tree(int a){
    int ans,i;
    vector<int> tmp;
    for(i=0;i<AA[a].size();i++){
        tmp.push_back(tree(AA[a][i]-1));
    }
    sort(tmp.begin(),tmp.end());
    ans=0;
    for(i=0;i<tmp.size();i++){
        ans=max(ans,tmp[i])+1;
    }
    return ans;
}

int main(void){
    int i,j,N,a,ans;
    cin >> N;
    for(i=2;i<=N;i++){
        cin >> a;
        AA[a-1].push_back(i);
    }
    cout << tree(0) << endl;;
    return 0;
}

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

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


int N;
std::vector<int> A;

int main() {
  std::cin >> N;
  for (int i = 0; i < N - 1; ++i) {
    int a; std::cin >> a;
    A.push_back(a - 1);
  }

  std::unordered_map<int, std::vector<int>> wins;
  for (int i = 0; i < N; ++i) wins[i] = {};
  for (int i = 1; i < N; ++i) {
    wins[A[i - 1]].push_back(i) ;
  }

  //for (const auto &k : wins) {
  //  std::cout << "KEY" << k.first << std::endl;
  //  for (const auto &j : k.second) {
  //    std::cout << j << " ";
  //  }
  //  std::cout << std::endl;
  //}

  std::stack<int> stack;
  std::set<int> expanded;
  std::vector<int> indices;
  stack.push(0);
  while (!stack.empty()) {
    const auto t = stack.top(); stack.pop();
    if (expanded.find(t) != expanded.end()) {
      indices.push_back(t);
      continue;
    }
    expanded.insert(t);
    stack.push(t);
    for (const auto target : wins[t]) {
      stack.push(target);
    }
  }

  std::vector<int> depth_table;
  for (int i = 0; i < N; ++i) {
    depth_table.push_back(0);
  }
  std::vector<int> tmp;
  for (int i = 0; i < N; ++i) {
    tmp.push_back(0);
  }
  for (const int i : indices) {
    if (wins[i].size() == 0) {
      depth_table[i] = 0;
      continue;
    }

    int c = 0;
    for (const int j : wins[i]) {
      tmp[c++] = -depth_table[j];
    }
    std::sort(tmp.begin(), tmp.begin() + c);
    depth_table[i] = -1;
    for (int j = 0; j < c; ++j) {
      if (-tmp[j] + j + 1 > depth_table[i]) {
        depth_table[i] = -tmp[j] + j + 1;
      }
    }
  }
  std::cout << depth_table[0] << std::endl;
//          def solve(i):
//            if len(wins[i]) == 0:
//            return 0
//            ans = max(n + 1 + d for n, d in enumerate(sorted((solve(j) for j in wins[i]), reverse=True)))
//            return ans
//
//            print(solve(0))
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:67:10: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   67 |     std::sort(tmp.begin(), tmp.begin() + c);
      |          ^~~~
      |          qsort
Language: C++

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

#define int long long
const int MAX_N = 100000;

int N, A[MAX_N];
vector<int> e[MAX_N];

int Solve(int n)
{
	vector<int> depths;
	for (int i = 0; i < e[n].size(); i++)
	{
		depths.push_back(Solve(e[n][i]));
	}
	sort(depths.begin(), depths.end());
	int res = 0;
	for (int i = 0; i < e[n].size(); i++)
	{
		res = max(res, depths[i] + e[n].size() - i);
	}
	return res;
}

signed main()
{
	A[0] = -1;
	cin >> N;
	for (int i = 1; i < N; i++)
	{
		cin >> A[i]; A[i]--;
		e[A[i]].push_back(i);
	}
	printf("%lld\n", Solve(0));
	return 0;
}

Compiler output:
a.cc: In function 'long long int Solve(long long int)':
a.cc:21:26: error: no matching function for call to 'max(long long int&, long long unsigned int)'
   21 |                 res = max(res, depths[i] + e[n].size() - i);
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:21:26: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long long unsigned int')
   21 |                 res = max(res, depths[i] + e[n].size() - i);
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:21:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   21 |                 res = max(res, depths[i] + e[n].size() - i);
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <cmath>
#include <algorithm>
#include <cstdlib>
#include <fstream>
#include <set>
#include <queue>

using namespace std;

vector<vector<int>> graph;

int ans = 0;

dfs(int root, int depth) {
	if (depth > ans) ans = depth;

	for (int i = 0; i < (int) graph[root].size(); ++i) {
		dfs(graph[root][i], depth + 1);
	}
}


vector<int> countOfWins;

int findMaxWinsCount(int root) {
	if (countOfWins[root] == 0) return 0;
	vector<int> tmp((int) graph[root].size());
	for (int i = 0; i < (int) graph[root].size(); ++i) {
		tmp[i] = findMaxWinsCount(graph[root][i]) + 1;
	}
	sort(tmp.begin(), tmp.end());
	for (int i = 1; i < (int) tmp.size(); ++i) {
		if (tmp[i] <= tmp[i - 1]) tmp[i] = tmp[i] + 1; 
	}
	return tmp[(int) tmp.size() - 1];
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);

	int n;
	cin >> n;
	graph.resize(n);

	countOfWins.resize(n, 0);

	for (int i = 0; i < n - 1; ++i) {
		int tmp;
		cin >> tmp;
		--tmp;
		graph[tmp].push_back(i + 1);
		++countOfWins[tmp];
	}

	cout << findMaxWinsCount(0) << endl;

/*
	for (int i = 0; i < n; ++i) {
		cout << i + 1 << ": " << endl;
		for (int j = 0; j < (int) graph[i].size(); ++j) {
			cout << graph[i][j] + 1 << " ";
		} cout << endl;
		cout << endl;
	}*/

	
	return 0;
}

Compiler output:
a.cc:18:1: error: ISO C++ forbids declaration of 'dfs' with no type [-fpermissive]
   18 | dfs(int root, int depth) {
      | ^~~
a.cc: In function 'int dfs(int, int)':
a.cc:24:1: warning: no return statement in function returning non-void [-Wreturn-type]
   24 | }
      | ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
#define repb(i, a, b) for(int i = a; i >= b; i--)
#define all(a) a.begin(), a.end()
#define o(a) cout << a << endl
#define int long long
using namespace std;
typedef pair<int, int> P;

vector<int> G[100010];
int dp[100010];
int INF = 1e9;
int n;

int dfs(int now){
    if(dp[now] != -1) return dp[now];
    if(G[now].size() == 0) return dp[now] = 0;
    vector<int> d;
    rep(i, 0, G[now].size()){
        int tmp = dfs(G[now][i]);
        d.push_back(tmp);
    }
    sort(all(d));
    reverse(all(d));
    MAX = -1;
    rep(i, 0, d.size()){
        MAX = d[i] + i + 1;
    }
    return dp[now] = MAX;
}

signed main(){
    cin >> n;
    vector<int> a(n);
    memset(dp, -1, sizeof(dp));
    rep(i, 1, n){
        cin >> a[i];
        a[i]--;
        G[a[i]]. push_back(i);
    }
    cout << dfs(0) << endl;
}

Compiler output:
a.cc: In function 'long long int dfs(long long int)':
a.cc:25:5: error: 'MAX' was not declared in this scope
   25 |     MAX = -1;
      |     ^~~
Language: Java

import java.util.*;
public class Main{
  public static void main(String[] args){
    int i,j;
    int tmp=0;
    int ans=0;
    Scanner sc=new Scanner(System.in);
    int n=sc.nextInt();
    int[] a=new int[n-1];//2~n->0~n-2
    List<Integer> loser=new ArrayList<Integer>();
    for(i=0;i<n-1;i++){
      a[i]=sc.nextInt();
      if(a[i]==1)loser.add(i);
    }
    for(i=0;i<loser.size();i++){
      tmp=0;
      for(j=0;j<n-1;j++){
        if(a[j]=loser.get(i))tmp++;
      }
      ans=Math.max(tmp,ans);
    }
    System.out.println(ans);
  }
}


Compiler output:
Main.java:18: error: incompatible types: int cannot be converted to boolean
        if(a[j]=loser.get(i))tmp++;
               ^
1 error
Language: C++

#include <bits/stdc++.h>

using namespace std;

const int maxn = 100005;

int n;
int a[maxn];
int main() {
    cin >> n;
    int ma = 0;
    for(int i = 0; i < n - 1; i++) {
        int x;
        scanf("%d", &x);
        a[x]++;
        ma = max(ma, a[x]);
    }
    cout << max(ma, (int)log2(n) + 1) << endl;
    return 0;
}
#include <bits/stdc++.h>

using namespace std;

const int maxn = 100005;

int n;
int a[maxn];
int main() {
    cin >> n;
    int ma = 0;
    for(int i = 0; i < n - 1; i++) {
        int x;
        scanf("%d", &x);
        a[x]++;
        ma = max(ma, a[x]);
    }
    cout << max(ma, (int)log2(n) + 1) << endl;
    return 0;
}


Compiler output:
a.cc:25:11: error: redefinition of 'const int maxn'
   25 | const int maxn = 100005;
      |           ^~~~
a.cc:5:11: note: 'const int maxn' previously defined here
    5 | const int maxn = 100005;
      |           ^~~~
a.cc:27:5: error: redefinition of 'int n'
   27 | int n;
      |     ^
a.cc:7:5: note: 'int n' previously declared here
    7 | int n;
      |     ^
a.cc:28:5: error: redefinition of 'int a [100005]'
   28 | int a[maxn];
      |     ^
a.cc:8:5: note: 'int a [100005]' previously declared here
    8 | int a[maxn];
      |     ^
a.cc:29:5: error: redefinition of 'int main()'
   29 | int main() {
      |     ^~~~
a.cc:9:5: note: 'int main()' previously defined here
    9 | int main() {
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
#define repb(i, a, b) for(int i = a; i >= b; i--)
#define all(a) a.begin(), a.end()
#define o(a) cout << a << endl
#define int long long
using namespace std;
typedef pair<int, int> P;

vector<int> G[100010];
int d[100010];
int INF = 1e9;
int n;

void dfs(int now, int dist){
    d[now] = dist;
    rep(i, 0, G[now].size()){
        dfs(G[now][i], dist + 1);
    }
}

signed main(){
    cin >> n;
    vector<int> a(n);
    queue<int> q;    
    rep(i, 1, n){
        cin >> a[i];
        a[i]--;
        G[a[i]]. push_back(i);
    }
    dfs(0, 0);
    int MAX = 0;
    rep(i, 0, n){
        MAX = max(MAX, d[i] + G[i].size());
    }
    cout << MAX << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:18: error: no matching function for call to 'max(long long int&, long long unsigned int)'
   34 |         MAX = max(MAX, d[i] + G[i].size());
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
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:34:18: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long long unsigned int')
   34 |         MAX = max(MAX, d[i] + G[i].size());
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/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:34:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   34 |         MAX = max(MAX, d[i] + G[i].size());
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include "bits/stdc++.h"

using namespace std;

#define int long long
#define PB push_back
#define MP make_pair
#define ALL(V) V.begin(), V.end()
typedef pair<int, int> pii;
typedef pair<string, int> psi;
typedef pair<int, pii> pipii;
typedef pair<pii, pii> pipi;

constexpr int INF = 1LL << 60;
constexpr int MOD = 1000000007;
constexpr int MAX_N = 100005;
constexpr int dx[] = { 0, 1, 0, -1 };
constexpr int dy[] = { 1, 0, -1, 0 };

int n;
vector<int> G[MAX_N];

int Solve(int i, int d) {
    int mx = d, mi = INF;
    for (int j = 0; j < G[i].size(); ++j) {
        int tmp = Solve(G[i][j], d + 1 + j);
        mx = max(mx, tmp);
        mi = min(mi, tmp);
    }

    return min(mx, mi + G[i].size());
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> n;
    for (int i = 2; i <= n; ++i) {
        int a;
        cin >> a;
        G[a].PB(i);
    }

    cout << Solve(1, 0) << endl;
}

Compiler output:
a.cc: In function 'long long int Solve(long long int, long long int)':
a.cc:31:15: error: no matching function for call to 'min(long long int&, long long unsigned int)'
   31 |     return min(mx, mi + G[i].size());
      |            ~~~^~~~~~~~~~~~~~~~~~~~~~
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:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:31:15: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long long unsigned int')
   31 |     return min(mx, mi + G[i].size());
      |            ~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: 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:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:31:15: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   31 |     return min(mx, mi + G[i].size());
      |            ~~~^~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<iostream>
2.#include<cctype>
3.#include<vector>
4.#include<ctype.h>
5.#include<algorithm>
6.#include<queue>
7.#include<string>
8.#include<math.h>
9.#include<iomanip>
10.using namespace std;
11.long long n, m; vector<long long> a;
12.int main() {
13.	cin >> n;
14.	for (size_t i = 0; i < n + 1; i++)
15.	{
16.		a.push_back(0);
17.	}
18.	for (size_t i = 2; i < n+1; i++)
19.	{
20.		cin >> m;
21.		a[m]++;
22.		a[i]++;
23.		a[m] = max(a[m], a[i]);
24.		a[i] = max(a[m], a[i]);
25. 
26.	}
27.	sort(a.begin(), a.end());
28.	cout << *(a.end()-1)<<endl;
29.	return 0;


Compiler output:
a.cc:2:3: error: stray '#' in program
    2 | 2.#include<cctype>
      |   ^
a.cc:3:3: error: stray '#' in program
    3 | 3.#include<vector>
      |   ^
a.cc:4:3: error: stray '#' in program
    4 | 4.#include<ctype.h>
      |   ^
a.cc:5:3: error: stray '#' in program
    5 | 5.#include<algorithm>
      |   ^
a.cc:6:3: error: stray '#' in program
    6 | 6.#include<queue>
      |   ^
a.cc:7:3: error: stray '#' in program
    7 | 7.#include<string>
      |   ^
a.cc:8:3: error: stray '#' in program
    8 | 8.#include<math.h>
      |   ^
a.cc:9:3: error: stray '#' in program
    9 | 9.#include<iomanip>
      |   ^
a.cc:2:1: error: expected unqualified-id before numeric constant
    2 | 2.#include<cctype>
      | ^~
a.cc:11:1: error: expected unqualified-id before numeric constant
   11 | 11.long long n, m; vector<long long> a;
      | ^~~~~~~
a.cc:11:20: error: 'vector' does not name a type
   11 | 11.long long n, m; vector<long long> a;
      |                    ^~~~~~
a.cc:12:1: error: expected unqualified-id before numeric constant
   12 | 12.int main() {
      | ^~~~~~
Language: C++

#include<iostream>
#include<cctype>
#include<vector>
#include<ctype.h>
#include<algorithm>
#include<queue>
#include<string>
#include<math.h>
#include<iomanip>
using namespace std;
long long n, m; vector<long long> a;
int main() {
	cin >> n;
	for (size_t i = 0; i < n + 1; i++)
	{
		a.push_back(0);
	}
	for (size_t i = 2; i < n+1; i++)
	{
		cin >> m;
		a[m]++;
		a[i]++;
		a[m] = max(a[m], a[i]);
		a[i] = max(a[m], a[i]);

	}
	sort(a.begin(), a.end());
	cout << *(a.end()-1)<<endl;
	return 0;



Compiler output:
a.cc: In function 'int main()':
a.cc:29:18: error: expected '}' at end of input
   29 |         return 0;
      |                  ^
a.cc:12:12: note: to match this '{'
   12 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
typedef long long ll;
const int maxn = 111111;
ll n, dp[maxn], a[maxn];
vector<int> G[maxn];
vector<ll> V;
ll dfs(int x)
{
    if(dp[x]) return dp[x];
    dp[x] = 1;
    for(int i = 0; i < G[x].size(); i++)
    {
        int to = G[x][i];
        dfs(to);
    }
    for(int i = 0; i < G[x].size(); i++)
        V.push_back(dp[G[x][i]]);
    sort(V.begin(), V.end());
    for(int i = 0; i < V.size(); i++)
        dp[x] = max(dp[x], V[i]+V.size()-i);
    V.clear();
    return dp[x];
}
int main()
{
    cin>>n;
    for(int i = 2; i <= n; i++) cin>>a[i];
    for(int i = 2; i <= n; i++) G[a[i]].push_back(i);
    dfs(1);
    cout<<dp[1]-1<<endl;
}


Compiler output:
a.cc: In function 'll dfs(int)':
a.cc:23:20: error: no matching function for call to 'max(ll&, long long unsigned int)'
   23 |         dp[x] = max(dp[x], V[i]+V.size()-i);
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/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:23:20: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'long long unsigned int')
   23 |         dp[x] = max(dp[x], V[i]+V.size()-i);
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~~~
/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,
                 from a.cc:3:
/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:23:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   23 |         dp[x] = max(dp[x], V[i]+V.size()-i);
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using ld = long double;

template <typename T>
int sz(T &x) {
  return (int)(x.size());
}

int power(int x, int y, int mod) {
  if (y == 0) {
    return 1;
  }
  int z = power(x, y >> 1, mod);
  z = z * 1ll * z % mod;
  if (y & 1) {
    z = z * 1ll * x % mod;
  }
  return z;
}

const int mod = 998244353;
const int inf = 1'000'000'007;

void solve() {
  int n;
  ll a, b;
  cin >> n >> a >> b;
  if (a > b) {
    swap(a, b);
  }
  vector<ll> s(n + 1);
  vector<int> dp(n + 1);
  vector<int> pref(n + 1);
  vector<int> bad(n + 1, 0);


  for (int i = 1; i <= n; ++i) {
    cin >> s[i];
  }

  bad[0] = 0;
  s[0] = s[1] - b - 1;

  for (int i = 1; i <= n; ++i) {
    if (i + 2 <= n && s[i + 2] - s[i] < a) {
      cout << "0\n";
      return 0;
    }
    if (s[i] - s[i - 1] < a) {
      bad[i] = i;
    } else {
      bad[i] = bad[i - 1];
    }
  }


  dp[0] = 1;
  pref[0] = 1;

  for (int i = 1; i <= n; ++i) {
    int pos = lower_bound(s.begin(), s.end(), s[i] - b + 1) - s.begin();
    --pos;
    int z = bad[i - 1] - 1;
    if (z > pos) {
      dp[i] = 0;
    } else {
      dp[i] = pref[pos] - (z <= 0 ? 0 : pref[z - 1]);
      if (dp[i] < 0) {
        dp[i] += inf;
      }
    }
    pref[i] = (pref[i - 1] + dp[i]) % inf;
  }

  int ans = 0;
  for (int i = bad[n] - 1; i <= n; ++i) {
    if (i > 0 && i < n && s[i + 1] - s[i - 1] < a) {
      continue;
    }
    (ans += dp[i]) %= inf;
  }

  cout << ans << "\n";
}

int main() {
  #ifndef LOCAL58
    // don't forget to remove if interactive
    ios_base :: sync_with_stdio(false);
    cin.tie(nullptr);
  #endif

  int t;
  t = 1;
  while (t--) {
    solve();
  }

  return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:52:14: error: return-statement with a value, in function returning 'void' [-fpermissive]
   52 |       return 0;
      |              ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using ld = long double;

template <typename T>
int sz(T &x) {
  return (int)(x.size());
}

int power(int x, int y, int mod) {
  if (y == 0) {
    return 1;
  }
  int z = power(x, y >> 1, mod);
  z = z * 1ll * z % mod;
  if (y & 1) {
    z = z * 1ll * x % mod;
  }
  return z;
}

const int mod = 998244353;
const int inf = 1'000'000'007;

void solve() {
  int n, a, b;
  cin >> n >> a >> b;
  if (a > b) {
    swap(a, b);
  }
  vector<int> s(n + 1);
  vector<int> dp(n + 1);
  vector<int> pref(n + 1);
  vector<int> bad(n + 1, 0);


  for (int i = 1; i <= n; ++i) {
    cin >> s[i];
  }

  bad[0] = 0;
  s[0] = -inf;

  for (int i = 1; i <= n; ++i) {
    if (s[i] - s[i - 1] < a) {
      bad[i] = i;
    } else {
      bad[i] = bad[i - 1];
    }
  }


  dp[0] = 1;
  pref[0] = 1;

  for (int i = 1; i <= n; ++i) {
    int pos = lower_bound(s.begin(), s.end(), s[i] - b + 1) - s.begin();
    --pos;
    int z = bad[i - 1] - 1;
    if (z > pos) {
      dp[i] = 0;
    } else {
      dp[i] = pref[pos] - (z <= 0 ? 0 : pref[z - 1]);
      if (dp[i] < 0) {
        dp[i] += inf;
      }
    }
    pref[i] = (pref[i - 1] + dp[i]) % inf;
  }

  for (int i = 1; i + 2 <= n; ++i) {
    if (s[i + 2] - s[i] < a) {
      cout << "0\n";
      return 0;
    }
  }

  int ans = 0;
  for (int i = bad[n] - 1; i <= n; ++i) {
    (ans += dp[i]) %= inf;
  }

  cout << ans << "\n";
}

int main() {
  #ifndef LOCAL58
    // don't forget to remove if interactive
    ios_base :: sync_with_stdio(false);
    cin.tie(nullptr);
  #endif

  int t;
  t = 1;
  while (t--) {
    solve();
  }

  return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:78:14: error: return-statement with a value, in function returning 'void' [-fpermissive]
   78 |       return 0;
      |              ^
Language: C++

#include<bits/stdc++.h>
#define int long long
#define ll long long
#define ull unsigned long long
using namespace std;
const int maxn=100005;
const int mod=1e9+7;
int n,dp[maxn][2],nxt[2][maxn];
ll A,B,a[maxn],w[maxn];
template<class Type>Type read(){
    Type res=0,f_f=1;char ch=getchar();
    while(ch<'0'||ch>'9'){if(ch=='-') f_f=-1;ch=getchar();}
    while(ch>='0'&&ch<='9') res=(res<<3)+(res<<1)-'0'+ch,ch=getchar();
    return res*f_f;
}
#define iread() (read<int>())
#define lread() (read<long long>())
#define ulread() (read<unsigned long long>())
namespace RMQ{
    int lg[maxn];
    ll f[maxn][20];
    inline void prelog(){
        lg[1]=0;
        for (int i=2;i<=n;i++){
            lg[i]=lg[i-1];
            lg[i]+=((1<<lg[i]+1)<=i)?1:0;
        }
    }
    inline void init(){
        prelog();
        for (int i=2;i<=n;i++) f[i][0]=w[i];
        for (int i=2;(1<<i)<=n;i++){
            for (int j=2;j+(1<<i)-1<=n;j++){
                f[j][i]=min(f[j][i-1],f[j+(1<<i-1)][i-1]);
            }
        }
    }
    inline ll query(int x,int y){
        int w=lg[y-x+1];
        return min(f[x][w],f[y-(1<<w)+1][w]);
    }
}
inline void get_modu(int &x){
    while(x>=mod) x-=mod;
}
inline void solve_a(int x){
    int L=x+2,R=nxt[0][x]-1;
    if(L<=R&&RMQ::query(L,R)<B) return;
    dp[R][1]+=dp[x][0],get_modu(dp[R][1]);
}
inline void solve_b(int x){
    int L=x+2,R=nxt[1][x]-1;
    if(L<=R&&RMQ::query(L,R)<A) return;
    dp[R][0]+=dp[x][1],get_modu(dp[R][0]);
}
int main(){
    n=iread(),A=lread(),B=lread();
    int tota=1,totb=1;
    for (int i=1;i<=n;i++){
        a[i]=lread();
        if(i^1){
            w[i]=a[i]-a[i-1];
            while(tota<i&&a[i]-a[tota]>=A) nxt[0][tota++]=i;
            while(totb<i&&a[i]-a[totb]>=B) nxt[1][totb++]=i;
        }
    }
    while(tota<=n) nxt[0][tota++]=n+1;
    while(totb<=n) nxt[1][totb++]=n+1;
    RMQ::init();
    dp[1][0]=dp[1][1]=1;
    for (int i=1;i<n;i++){
        if(dp[i][0]){
            if(nxt[0][i]==i+1){
                dp[i+1][0]+=dp[i][0],get_modu(dp[i+1][0]);
                dp[i+1][1]+=dp[i][0],get_modu(dp[i+1][1]);
            }
            else solve_a(i);
        }
        if(dp[i][1]){
            if(nxt[1][i]==i+1){
                dp[i+1][0]+=dp[i][1],get_modu(dp[i+1][0]);
                dp[i+1][1]+=dp[i][1],get_modu(dp[i+1][1]);
            }
            else solve_b(i);
        }
    }
    printf("%lld\n",(dp[n][0]+dp[n][1])%mod);
    return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
using ll = long long;
using ii = pair<int, int>;
constexpr ll MOD = 1e9+7;

template<typename T> class fenwick_tree {
private: vector<T> FT, vector<pair<int, T>> S;
public:
	fenwick_tree(int N) { FT.assign(N + 5, 0); }
	void update(int x, T val) { if (++x) S.emplace_back(x, val), for (; x < FT.size(); x += x & -x) (FT[x] += val + MOD) %= MOD; }
	T query(int x) { T ret = 0; if (++x) for (; x; x -= x & -x) (ret += FT[x] + MOD) %= MOD; return ret; }
	T query(int x, int y) { return query(y) - query(x - 1); }
	void clear() { for (auto & p : S) update(p.f, -p.s); S.clear(); }
};

ll S[100001];

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

	ll N, A, B; cin >> N >> A >> B;
	for (int i = 0; i < N; ++i) cin >> S[i];
	
	fenwick_tree<ll> X(N), Y(N);
	X.update(0, 1), Y.update(0, 1);
	for (int i = 1, j = -1, k = -1; i < N; ++i) {
		while (j < N && S[i] - S[j + 1] >= B) ++j;
		ll y = X.query(0, j + 1);

		while (k < N && S[i] - S[k + 1] >= A) ++k;
		ll x = Y.query(0, k + 1);
		
		if (S[i] - S[i - 1] < A) X.clear();
		if (S[i] - S[i - 1] < B) Y.clear();

		if (y) Y.update(i, y);
		if (x) X.update(i, x);
	}

	cout << (X.query(0, N) + Y.query(0, N)) % MOD;
}

Compiler output:
a.cc:10:45: error: invalid declarator before 'S'
   10 | private: vector<T> FT, vector<pair<int, T>> S;
      |                                             ^
a.cc: In member function 'void fenwick_tree<T>::update(int, T)':
a.cc:13:46: error: 'S' was not declared in this scope
   13 |         void update(int x, T val) { if (++x) S.emplace_back(x, val), for (; x < FT.size(); x += x & -x) (FT[x] += val + MOD) %= MOD; }
      |                                              ^
a.cc:13:70: error: expected primary-expression before 'for'
   13 |         void update(int x, T val) { if (++x) S.emplace_back(x, val), for (; x < FT.size(); x += x & -x) (FT[x] += val + MOD) %= MOD; }
      |                                                                      ^~~
a.cc:13:103: error: expected ';' before ')' token
   13 |         void update(int x, T val) { if (++x) S.emplace_back(x, val), for (; x < FT.size(); x += x & -x) (FT[x] += val + MOD) %= MOD; }
      |                                                                                                       ^
a.cc: In member function 'void fenwick_tree<T>::clear()':
a.cc:16:40: error: 'S' was not declared in this scope
   16 |         void clear() { for (auto & p : S) update(p.f, -p.s); S.clear(); }
      |                                        ^
a.cc:16:62: error: 'S' was not declared in this scope
   16 |         void clear() { for (auto & p : S) update(p.f, -p.s); S.clear(); }
      |                                                              ^
Language: C++

#include <iostream>
using namespace std;
typedef long long ll;

const ll INF = 1000000000000000009;
const ll MOD = 1000000007;

ll s[100005];
int ca[100005], cb[100005];
ll dpa[100005], dpb[100005];

int main()
{
    ll n, a, b;
    cin >> n >> a >> b;
    s[0] = -INF;
    for(int i = 1; i <= n; i++) cin >> s[i];
    for(int i = 1; i <= n; i++){
        ca[i] = ca[i - 1];
        cb[i] = cb[i - 1];
        if(s[i] - s[i - 1] >= a) ca[i]++;
        if(s[i] - s[i - 1] >= b) cb[i]++;
    }
    dpa[0] = dpa[1] = dpb[0] = dpb[1] = 1;
    for(int i = 2; i <= n; i++){
        if(ca[i] - ca[i - 1]) dpa[i] = (dpa[i - 1] + dpb[i - 1]) % MOD;
        else{
            int j = upper_bound(s, s + n + 1, s[i] - a) - s;
            if(cb[i - 1] - cb[j] == (i - 1) - j) dpa[i] = dpb[j];
        }
        if(cb[i] - cb[i - 1]) dpb[i] = (dpa[i - 1] + dpb[i - 1]) % MOD;
        else{
            int j = upper_bound(s, s + n + 1, s[i] - b) - s;
            if(ca[i - 1] - ca[j] == (i - 1) - j) dpb[i] = dpa[j];
        }
    }
    cout << (dpa[n] + dpb[n]) % MOD << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:21: error: 'upper_bound' was not declared in this scope
   28 |             int j = upper_bound(s, s + n + 1, s[i] - a) - s;
      |                     ^~~~~~~~~~~
a.cc:33:21: error: 'upper_bound' was not declared in this scope
   33 |             int j = upper_bound(s, s + n + 1, s[i] - b) - s;
      |                     ^~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> pi;
typedef vector<pi> vpi;
typedef long double ld;
#define pb emplace_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define ALL(x) x.begin(), x.end()
#define SZ(x) (ll)x.size()
#define f first
#define s second
#define MAXN 200100
ll N,A,B;
vi V,breaks;
ll a;
ll fw[MAXN];

void update(ll x, ll y, ll v){
	++y;
	for (;y;y-=y&(-y)){fw[y]+=v;fw[y]%=MOD;}
	for (;x;x-=x&(-x)){fw[x]=(fw[x]+MOD-v)%MOD;
}

ll query(ll x){
	++x;
	ll res=0;
	for (;x<=MAXN;x+=x&(-x)){res += fw[x];res %= MOD;}
	return res;
}

ll main(){
	cin>>N>>A>>B;
	if (A > B)swap(A,B); // A is small
	V.pb(0);
	for (ll i=1;i<=N;++i){cin>>a;V.pb(a);}
	V.pb(1e18);
	for (ll i=1;i<N;++i){
		if (V[i+1] - V[i] < A)breaks.pb(i);
	}
	ll lastbreak = -1;
	if (SZ(breaks))lastbreak = breaks.back();
	breaks.pb(N);
	// for (auto i : breaks)cout<<i<<' ';
	update(0,0,1);
	for (ll i=0;i<=N;++i){
		ll t = query(i);
		// cout<<i<<' '<<t<<'\n';
		// Last update
		ll last_update = *ub(ALL(breaks), i)+1;
		ll first_update = lb(ALL(V), V[i] + B)-V.begin();
		// cout<<V[i]+B<<'\n';
		if (i==0)first_update=1;
		// cout<<"Update "<<first_update<<' '<<last_update<<'\n';
		if (first_update <= last_update)update(first_update,last_update,t);
	}
	ll ans = 0;
	for (ll i=0;i<=N;++i){
		// Whether or not there are any issues after the thing
		if (i < lastbreak)continue;
		if (i > 0 && V[i+1] - V[i-1] < A)continue;
		ans += query(i);
		ans %= MOD;
	}
	cout<<ans;
}

Compiler output:
a.cc: In function 'void update(ll, ll, ll)':
a.cc:24:44: error: 'MOD' was not declared in this scope
   24 |         for (;y;y-=y&(-y)){fw[y]+=v;fw[y]%=MOD;}
      |                                            ^~~
a.cc:25:41: error: 'MOD' was not declared in this scope
   25 |         for (;x;x-=x&(-x)){fw[x]=(fw[x]+MOD-v)%MOD;
      |                                         ^~~
a.cc:28:15: error: a function-definition is not allowed here before '{' token
   28 | ll query(ll x){
      |               ^
a.cc:35:8: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   35 | ll main(){
      |        ^~
a.cc:35:8: note: remove parentheses to default-initialize a variable
   35 | ll main(){
      |        ^~
      |        --
a.cc:35:8: note: or replace parentheses with braces to value-initialize a variable
a.cc:35:10: error: a function-definition is not allowed here before '{' token
   35 | ll main(){
      |          ^
a.cc:69:2: error: expected '}' at end of input
   69 | }
      |  ^
a.cc:22:30: note: to match this '{'
   22 | void update(ll x, ll y, ll v){
      |                              ^