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

int memo[100005];
int a[100005];
int n;
int dp(int k){
    if(memo[k]!=-1) return memo[k];
    if(k==n-1) return 0;
    else {
        memo[k]=min(dp(k+1) + abs(a[k]-a[k+1]) ,dp(k+2) + abs(a[k]-a[k+2]));
    }
    return memo[k];
}

int main(){
    cin>>n;
    memset(memo,-1,sizeof(memo));
    for(int i=0;i<n;i++){
        cin>>a[i];
    }
    cout<<dp(0)<<endl;
    
}


Compiler output:
a.cc: In function 'int dp(int)':
a.cc:8:31: error: 'abs' was not declared in this scope
    8 |         memo[k]=min(dp(k+1) + abs(a[k]-a[k+1]) ,dp(k+2) + abs(a[k]-a[k+2]));
      |                               ^~~
a.cc:8:17: error: 'min' was not declared in this scope
    8 |         memo[k]=min(dp(k+1) + abs(a[k]-a[k+1]) ,dp(k+2) + abs(a[k]-a[k+2]));
      |                 ^~~
a.cc: In function 'int main()':
a.cc:14:5: error: 'cin' was not declared in this scope
   14 |     cin>>n;
      |     ^~~
a.cc:15:5: error: 'memset' was not declared in this scope
   15 |     memset(memo,-1,sizeof(memo));
      |     ^~~~~~
a.cc:1:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
  +++ |+#include <cstring>
    1 | int memo[100005];
a.cc:19:5: error: 'cout' was not declared in this scope
   19 |     cout<<dp(0)<<endl;
      |     ^~~~
a.cc:19:18: error: 'endl' was not declared in this scope
   19 |     cout<<dp(0)<<endl;
      |                  ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
    int n, temp;
    cin>>n;
    vector<int> h(n,0);
    for(int i=0;i<n;i++){
        cin>>temp;
        h[i]=temp;
    }
    vector<int> dp(n+1,INT_MAX);
  dp[i] =0;
    dp[1] = abs(h[1]-h[0]);
  for(int i=2;i<n;i++){
    dp[i] = min(dp[i-1] + abs(h[i] - h[i-1]), dp[i-2] + abs(h[i] - h[i-2]));
  }
     return dp[n-1];
 }

Compiler output:
a.cc: In function 'int main()':
a.cc:12:6: error: 'i' was not declared in this scope
   12 |   dp[i] =0;
      |      ^
Language: Java

import java.util.*;

public class practicee{ 

   public static void main(String args[]) {
	 
    Scanner s=new Scanner(System.in);
    
    	int n=s.nextInt();
    	long h[]=new long[n];
    	for(int i=0;i<n;i++) {
    		h[i]=s.nextLong();
    	}
    	long dp[]=new long[n];
    	dp[0]=0;
    	dp[1]=Math.abs(h[1]-h[0]);
    	
    	for(int i=2;i<n;i++) {
    		long op1=dp[i-1] + Math.abs(h[i]-h[i-1]);
    		long op2=dp[i-2] + Math.abs(h[i]-h[i-2]);
    		dp[i]=Math.min(op1, op2);
    	}
    	System.out.println(dp[n-1]);
    	
    }

}

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

import java.util.*;
public class practicee{ 

   public static void main(String args[]) {
	 
    Scanner s=new Scanner(System.in);
    
    	int n=s.nextInt();
    	long h[]=new long[n];
    	for(int i=0;i<n;i++) {
    		h[i]=s.nextLong();
    	}
    	long dp[]=new long[n];
    	dp[0]=0;
    	dp[1]=Math.abs(h[1]-h[0]);
    	
    	for(int i=2;i<n;i++) {
    		long op1=dp[i-1] + Math.abs(h[i]-h[i-1]);
    		long op2=dp[i-2] + Math.abs(h[i]-h[i-2]);
    		dp[i]=Math.min(op1, op2);
    	}
    	System.out.println(dp[n-1]);
    	
    }
}

Compiler output:
Main.java:2: error: class practicee is public, should be declared in a file named practicee.java
public class practicee{ 
       ^
1 error
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner(System.in);
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     long [] cost = new long[N+1];
     cost[0]=0;
     cost[1]=array[0];
     if (N==1) return cost[1];     
     cost[2] = Math.abs(array[0]-array[1]);
     if (N==2) return cost[2];
     for(int i=3;i<=N;i++) { 
       cost[i] = cost[i-1]+ Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
     }
    System.out.println(cost[N]);
  }
         
  }
    
    


Compiler output:
Main.java:21: error: incompatible types: unexpected return value
     if (N==1) return cost[1];     
                          ^
Main.java:23: error: incompatible types: unexpected return value
     if (N==2) return cost[2];
                          ^
2 errors
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner(System.in);
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     long [] cost = new long[N+1];
     cost[0]=0;
     cost[1]=array[0];
     for(int i=2;i<=N;i++) { 
       cost[i] = cost[i-1]+ Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]))
     }
    System.out.println(cost[N]);
  }
         
  }
    
    

Compiler output:
Main.java:22: error: ';' expected
       cost[i] = cost[i-1]+ Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]))
                                                                                              ^
1 error
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner(System.in);
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     long [] cost = new int[N+1];
     cost[0]=0;
     cost[1]=array[0];
     for(int i=2;i<=N;i++) { 
       cost[i] = Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
     }
    System.out.println(cost[N]);
  }
         
  }
    
    

Compiler output:
Main.java:18: error: incompatible types: int[] cannot be converted to long[]
     long [] cost = new int[N+1];
                    ^
1 error
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
       Scanner sc = new Scanner(System.in);
       int N = sc.nextInt();
       long [] array = new long [N];
       for(int i=0;i<N;i++) {
          array[i] = sc.nextLong();
       }
       int [] cost = new int[N+1];
       cost[0]=0;
       cost[1]=array[0];
       for(int i=2;i<=N;i++) { 
         cost[i] = Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
       }
      System.out.println(cost[N]);
    }
         
  }
    
    

Compiler output:
Main.java:20: error: incompatible types: possible lossy conversion from long to int
       cost[1]=array[0];
                    ^
1 error
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner();
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     int [] cost = new int[N+1];
     cost[0]=0;
     cost[1]=array[0];
     for(int i=2;i<=N;i++) { 
       cost[i] = Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
     }
    System.out.println(cost[N]);
  }
         
  }
    
    

Compiler output:
Main.java:12: error: no suitable constructor found for Scanner(no arguments)
     Scanner sc = new Scanner();
                  ^
    constructor Scanner.Scanner(Readable,Pattern) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Readable) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,CharsetDecoder) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel,Charset) is not applicable
      (actual and formal argument lists differ in length)
Main.java:20: error: incompatible types: possible lossy conversion from long to int
     cost[1]=array[0];
                  ^
2 errors
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner(System.in);
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     int [] cost = new int[N+1];
     cost[0]=0;
     cost[1]=array[0];
     for(int i=2;i<=N;i++) { 
       cost[i] = Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
     }
    System.out.println(cost[N]);
       
         
  }
    
    

Compiler output:
Main.java:27: error: reached end of file while parsing
  }
   ^
1 error
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner();
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     int [] cost = new int[N+1];
     cost[0]=0;
     cost[1]=array[0];
     for(int i=2;i<=N;i++) { 
       cost[i] = Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
     }
    System.out.println(cost[N]);
  }
       
         
  }
    
    

Compiler output:
Main.java:12: error: no suitable constructor found for Scanner(no arguments)
     Scanner sc = new Scanner();
                  ^
    constructor Scanner.Scanner(Readable,Pattern) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Readable) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(InputStream,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(File,CharsetDecoder) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(Path,Charset) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel,String) is not applicable
      (actual and formal argument lists differ in length)
    constructor Scanner.Scanner(ReadableByteChannel,Charset) is not applicable
      (actual and formal argument lists differ in length)
Main.java:20: error: incompatible types: possible lossy conversion from long to int
     cost[1]=array[0];
                  ^
2 errors
Language: Java

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

public class Main {
  
   public static void main(String []abc){
      Main sol = new Main();
      sol.solve();
   }
  
  private void solve() {
     Scanner sc = new Scanner();
     int N = sc.nextInt();
     long [] array = new long [N];
     for(int i=0;i<N;i++) {
        array[i] = sc.nextLong();
     }
     int [] cost = new int[N+1];
     cost[0]=0;
     cost[1]=array[0];
     for(int i=2;i<=N;i++) { 
       cost[i] = Math.min(Math.abs(cost[i-1]-cost[i]), Math.abs(cost[i-2]-cost[i]));
     }
    System.out.println(cost[N]);
       
         
  }
    
    

Compiler output:
Main.java:27: error: reached end of file while parsing
  }
   ^
1 error
Language: Java

import java.utils.*;

public class Main
{
   public static void main(String args[])
   {
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
     	int a[]=new int[n+1];
     	for(int i=0;i<n;i++) a[i+1]=sc.nextInt();
     	int dp[]=new int[n+1];
     
     	Arrays.fill(dp,Integer.MAX_VALUE);
 
     	for(int i=2;i<=n;i++)
        {
        	for(int j=i-1;j>=0;j--)
            {
            	dp[i]=Math.min(dp[i],Math.abs(dp[i]-dp[j]));
            }
        }
     
     	System.out.println(dp[n]);
   }
}

Compiler output:
Main.java:1: error: package java.utils does not exist
import java.utils.*;
^
Main.java:7: error: cannot find symbol
		Scanner sc=new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:7: error: cannot find symbol
		Scanner sc=new Scanner(System.in);
		               ^
  symbol:   class Scanner
  location: class Main
Main.java:13: error: cannot find symbol
     	Arrays.fill(dp,Integer.MAX_VALUE);
     	^
  symbol:   variable Arrays
  location: class Main
4 errors
Language: C

// @gaurav_512
#include<bits/stdc++.h>
using namespace std;
 
typedef long long int ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vii;
typedef unordered_map<int,int> umii;
typedef unordered_map<ll,ll> umll;
 
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define bs(v,val) binary_search(v.begin(),v.end(),val)
#define mod 1e9+7
#define ff first
#define ss second
#define fi(n) for(int i=0;i<n;i++)
#define fj(n) for(int j=0;j<n;j++)
#define all(v) v.begin(),v.end()
#define pb push_back
#define m_p make_pair
#define endl '\n'
 
ll power(ll x, ll y, ll p)
{  
    ll res = 1;
    x = x % p;  
    if (x == 0) return 0;
    while (y > 0){  
        if (y & 1)  res = (res*x) % p;  
        y = y>>1;
        x = (x*x) % p;  
    }  
    return res;  
}
ll modInverse(ll n, ll p)
{
    return power(n, p-2, p); 
}
// ********** CODE STARTS HERE ****************//
 
 
void solve()
{
	int n;
	cin>>n;
	vi h(n);
	fi(n)cin>>h[i];
	vi dp(n);
	dp[0] = 0;
	dp[1] = abs(h[1]-h[0]);
	for(int i=2; i<n; i++)
	{
		dp[i] = min(dp[i-1]+abs(h[i]-h[i-1]), dp[i-2]+abs(h[i]-h[i-2]));
	}
	cout<<dp[n-1]<<endl;
}
int main()
{
	fastio;
    int T;
//    cin>>T;
//    while(T--)
        solve();
	return 0;
}

Compiler output:
main.c:2:9: fatal error: bits/stdc++.h: No such file or directory
    2 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namepsace std;
#define ll long long 

int main()
{
  int n;
  cin>>n;
  
  int* arr=new int[n];
  for(int i=0;i<n;i++)
  {
    cin>>arr[i];
  }
  
  int* dp=new int[n];
  dp[0]=arr[0];
  dp[1]=arr[1]-arr[0];
  
  for(int i=2;i<n;i++)
  {
    dp[i]=min(dp[i]-dp[i-1],dp[i]-dp[i-2]);
  }
  
  cout<<dp[n-1]<<endl;
  
  return 0;
}


Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namepsace'
    2 | using namepsace std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:8:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |   cin>>n;
      |   ^~~
      |   std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:22:11: error: 'min' was not declared in this scope; did you mean 'std::min'?
   22 |     dp[i]=min(dp[i]-dp[i-1],dp[i]-dp[i-2]);
      |           ^~~
      |           std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:25:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   25 |   cout<<dp[n-1]<<endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:25:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   25 |   cout<<dp[n-1]<<endl;
      |                  ^~~~
      |                  std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

int N;
cin >> N;

int height[N];

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

int dp[N];

dp[0] = 0; // 初期位置なのでもちろん0

//2番目の位置は初期位置からの移動しかありえないので
dp[1] = dp[0] + abs(height[1] - height[0]);

//3番目以降は1つ前と2つ前の2パターンを計算して小さい方を選択
for (int i=2; i<N; i++){
    //１つ前から移動した場合のコストを求める
    int jumpFrom_1 = dp[i-1] + abs(height[i-1] - height[i]);
    //２つ前から移動した場合のコストを求める
    int jumpFrom_2 = dp[i-2] + abs(height[i-2] - height[i]);
    dp[i] = min(jumpFrom_1, jumpFrom_2);
}

coout << dp[N-1] << endl;


Compiler output:
a.cc:6:1: error: 'cin' does not name a type
    6 | cin >> N;
      | ^~~
a.cc:8:12: error: size of array 'height' is not an integral constant-expression
    8 | int height[N];
      |            ^
a.cc:10:1: error: expected unqualified-id before 'for'
   10 | for(int i=0; i<N; i++){
      | ^~~
a.cc:10:14: error: 'i' does not name a type
   10 | for(int i=0; i<N; i++){
      |              ^
a.cc:10:19: error: 'i' does not name a type
   10 | for(int i=0; i<N; i++){
      |                   ^
a.cc:14:8: error: size of array 'dp' is not an integral constant-expression
   14 | int dp[N];
      |        ^
a.cc:16:1: error: 'dp' does not name a type
   16 | dp[0] = 0; // 初期位置なのでもちろん0
      | ^~
a.cc:19:1: error: 'dp' does not name a type
   19 | dp[1] = dp[0] + abs(height[1] - height[0]);
      | ^~
a.cc:22:1: error: expected unqualified-id before 'for'
   22 | for (int i=2; i<N; i++){
      | ^~~
a.cc:22:15: error: 'i' does not name a type
   22 | for (int i=2; i<N; i++){
      |               ^
a.cc:22:20: error: 'i' does not name a type
   22 | for (int i=2; i<N; i++){
      |                    ^
a.cc:30:1: error: 'coout' does not name a type
   30 | coout << dp[N-1] << endl;
      | ^~~~~
Language: C++

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

int N;
cin >> N;

int height[N];

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

int dp[N];

dp[0] = 0; // 初期位置なのでもちろん0

//2番目の位置は初期位置からの移動しかありえないので
dp[1] = dp[0] + Math.abs(height[1] - height[0]);

//3番目以降は1つ前と2つ前の2パターンを計算して小さい方を選択
for (int i=2; i<N; i++){
    //１つ前から移動した場合のコストを求める
    int jumpFrom_1 = dp[i-1] + Math.abs(height[i-1] - height[i]);
    //２つ前から移動した場合のコストを求める
    int jumpFrom_2 = dp[i-2] + Math.abs(height[i-2] - height[i]);
    dp[i] = Math.min(jumpFrom_1, jumpFrom_2);
}

coout << dp[N-1] << endl;


Compiler output:
a.cc:3:10: fatal error: math: No such file or directory
    3 | #include <math>
      |          ^~~~~~
compilation terminated.
Language: C++

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

#define ll long long
#define ar array
#define INF INT_MAX

int N,h[100001],dp[100001];

void solve(){
	cin>>N;
	for (int i = 1; i < N; ++i)
	{
		cin>>h[i];
	}
	dp[0]=0;
	dp[1]=h[0];#include  <bits/stdc++.h> 
using namespace std;

#define ll long long
#define ar array
#define INF INT_MAX

int N,h[100001],dp[100001];

void solve(){
	cin>>N;
	for (int i = 1; i < N; ++i)
	{
		cin>>h[i];
	}
	dp[0]=0;
	dp[1]=h[0];
	for (int i = 2; i<N; ++i)
	{
		dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]));
	}
	cout<<dp[N-1]<<endl;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	// #ifndef ONLINE_JUDGE
	// 	freopen("input.txt", "r", stdin);
	// 	freopen("output.txt", "w", stdout);
	// #endif
	// int t;
	// cin>>t;
	// while(t--)
		solve();
	return 0;
}
	

Compiler output:
a.cc:17:20: error: stray '#' in program
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                    ^
a.cc: In function 'void solve()':
a.cc:17:21: error: 'include' was not declared in this scope
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                     ^~~~~~~
a.cc:17:31: error: 'bits' was not declared in this scope
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                               ^~~~
a.cc:17:36: error: 'stdc' was not declared in this scope; did you mean 'std'?
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                                    ^~~~
      |                                    std
a.cc:18:1: error: expected primary-expression before 'using'
   18 | using namespace std;
      | ^~~~~
a.cc:26:13: error: a function-definition is not allowed here before '{' token
   26 | void solve(){
      |             ^
a.cc:41:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   41 | int main() {
      |         ^~
a.cc:41:9: note: remove parentheses to default-initialize a variable
   41 | int main() {
      |         ^~
      |         --
a.cc:41:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:41:12: error: a function-definition is not allowed here before '{' token
   41 | int main() {
      |            ^
a.cc:53:2: error: expected '}' at end of input
   53 | }
      |  ^
a.cc:10:13: note: to match this '{'
   10 | void solve(){
      |             ^
Language: C++

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

#define ll long long
#define ar array
#define INF INT_MAX

int N,h[100001],dp[100001];

void solve(){
	cin>>N;
	for (int i = 1; i < N; ++i)
	{
		cin>>h[i];
	}
	dp[0]=0;
	dp[1]=h[0];#include  <bits/stdc++.h> 
using namespace std;

#define ll long long
#define ar array
#define INF INT_MAX

int N,h[100001],dp[100001];

void solve(){
	cin>>N;
	for (int i = 1; i < N; ++i)
	{
		cin>>h[i];
	}
	dp[0]=0;
	dp[1]=h[0];
	for (int i = 2; i<N; ++i)
	{
		dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]));
	}
	cout<<dp[N-1]<<endl;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	// #ifndef ONLINE_JUDGE
	// 	freopen("input.txt", "r", stdin);
	// 	freopen("output.txt", "w", stdout);
	// #endif
	// int t;
	// cin>>t;
	// while(t--)
		solve();
	return 0;
}
	for (int i = 2; i<N; ++i)
	{
		dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]));
	}
	cout<<dp[N-1]<<endl;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	#ifndef ONLINE_JUDGE
		freopen("input.txt", "r", stdin);
		freopen("output.txt", "w", stdout);
	#endif
	int t;
	cin>>t;
	for (int i = 1; i <= t; ++i)
	{
		/* code */
	}
	return 0;
}

Compiler output:
a.cc:17:20: error: stray '#' in program
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                    ^
a.cc: In function 'void solve()':
a.cc:17:21: error: 'include' was not declared in this scope
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                     ^~~~~~~
a.cc:17:31: error: 'bits' was not declared in this scope
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                               ^~~~
a.cc:17:36: error: 'stdc' was not declared in this scope; did you mean 'std'?
   17 |         dp[1]=h[0];#include  <bits/stdc++.h>
      |                                    ^~~~
      |                                    std
a.cc:18:1: error: expected primary-expression before 'using'
   18 | using namespace std;
      | ^~~~~
a.cc:26:13: error: a function-definition is not allowed here before '{' token
   26 | void solve(){
      |             ^
a.cc:41:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   41 | int main() {
      |         ^~
a.cc:41:9: note: remove parentheses to default-initialize a variable
   41 | int main() {
      |         ^~
      |         --
a.cc:41:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:41:12: error: a function-definition is not allowed here before '{' token
   41 | int main() {
      |            ^
Language: C++

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

#define ll long long
#define ar array
#define INF INT_MAX

int N,h[100001],dp[100001];

void solve(){
	cin>>N;
	for (int i = 1; i < N; ++i)
	{
		cin>>h[i];
	}
	dp[0]=0;
	dp[1]=h[0];
	for (int i = 2; i<N; ++i)
	{
		dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]));
	}
	cout<<dp[N-1]<<endl;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	solve()
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:16: error: expected ';' before 'return'
   28 |         solve()
      |                ^
      |                ;
   29 |         return 0;
      |         ~~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <cmath>
#include <algorithm>
#include <bitset>  
using namespace std;

//======================================================
#define for1(i,n)  for (int i = 0; i < (int)(n); ++i)
#define for2(i,n)  for (int i = 1; i <=(int)(n); ++i)
#define forr1(i,n)  for (int i = n - 1 ;i <= 0; --i)
#define forr2(i,n)  for (int i = n  ;i < 0; --i)
#define all(v)	   ((v).begin()), ((v).end())
#define allr(v)	   ((v).rbegin()), ((v).rend())
#define clr(v,d)   memset(v, d, sizeof(v))
#define ull        unsigned long long
#define MP(a,b)	   make_pair(a,b)
#define S          second
#define F          first
#define PI         3.14159265359
#define ll         long long
#define sz(v)	   v.size()
#define pb         push_back
#define pp         pop_back
#define bgn        begin
#define N          100000+5
#define	MOD        1e9+7
#define inf        1e18
//======================================================
int dx[] = { 0,  0, 1, -1 ,  1,  -1,  1,  -1 };
int dy[] = { 1, -1, 0,  0 , -1,   1,  1,  -1 };
//======================================================
ll gcd(ll a, ll b) { return !b ? a : gcd(b, a % b); }
ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b; }
ll power(ull a, ull b, ull ret = 1LL) {
	while (b--) ret = (ret * a);
	return ret;
}
//======================================================





int main()
{

	int n , k;
	cin >> n >> k;
	vector<int> v(n + 1);
	for (int i = 1; i <= n; i++)
	{
		cin >> v[i];
	}
	vector<int> dp(n + 1 , INT_MAX);

	dp[1] = 0;
	dp[2] = abs(v[2] - v[1]);
	for (int i1 = 3; i1 <=n; i1++)
	{

		for (int i2 = 1; i2 <=k; i2++)
		{
			int secIndex = i1 - i2;
			if (secIndex >= 1 && secIndex <= i1- 1)
			{
				dp[i1] = min(dp[secIndex] + abs(v[i1] - v[secIndex]), dp[i1]);

			}
		}
	}
	cout << dp[n];



}




Compiler output:
a.cc: In function 'int main()':
a.cc:62:32: error: 'INT_MAX' was not declared in this scope
   62 |         vector<int> dp(n + 1 , INT_MAX);
      |                                ^~~~~~~
a.cc:13:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   12 | #include <bitset>
  +++ |+#include <climits>
   13 | using namespace std;
Language: Java


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.sql.Array;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Map.Entry;
import java.util.*;

public class a {
	static long mod = 1000000009L;

	public static void main(String[] args) throws Exception {
		in = new BufferedReader(new InputStreamReader(System.in));
		out = new PrintWriter(System.out);
		sc = new FastScanner(in);
		int t = 1;
		while (t-- > 0) {
			int n = sc.nextInt();
			long [] a = input(n);
			
			long[] dp = new long[n];
			for(int i =1 ; i < n ;i++) {
				long temp = Math.abs(a[i]-a[i-1]) + dp[i-1];
				if(i>1)temp = Math.min(temp, Math.abs(a[i] - a[i-2] )+ dp[i-2]);
				dp[i]=temp  ;
			}
			out.println(dp[n-1]);
			 
			
		}
		out.flush();
	}
	static TreeMap<Integer , ArrayList<Integer> > map = new TreeMap<>();
	
	public static TreeMap<Integer , ArrayList<Integer> > undirected(int n ) throws Exception{
		TreeMap<Integer , ArrayList<Integer> > map = new TreeMap<>();
		for(int i = 1 ;i<=n ;i++)map.put(i, new ArrayList<Integer>());
		for(int i = 1 ;i < n;i++) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			map.get(a).add(b);
			map.get(b).add(a);
		}
		return map;
	}
	public static TreeMap<Integer , ArrayList<Integer> > directed(int n ) throws Exception{
		TreeMap<Integer , ArrayList<Integer> > map = new TreeMap<>();
		for(int i = 1 ;i<=n ;i++)map.put(i, new ArrayList<Integer>());
		for(int i = 1 ;i < n;i++) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			map.get(a).add(b);
		}
		return map;
	}

	
	
	public static long[] input(int n) throws Exception {

		long[] arr = new long[n];
		for (int i = 0; i < n; i++) {
			arr[i] = sc.nextLong();
		}
		return arr;
	}

	public static long[][] input(int n , int m ) throws Exception {

		long[][] arr = new long[n][m];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {

				arr[i][j] = sc.nextInt();
			}
		}
		return arr;
	}

	static BufferedReader in;
	static FastScanner sc;
	static PrintWriter out;

	static 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 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:11: error: class a is public, should be declared in a file named a.java
public class a {
       ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
void max_new(ll& a,ll b)
{
  a = max(a,b);
}
int main()
{
  ll n,w;
  cin >> n >> w;
  vector<ll> dp(w+1);
  for(int i=0;i<n;i++)
  {
    int weight,val; 
    cin >> weight >> val;
    for(int j = w - weight;j>=0;j--)
    {
      max_new(dp[j+weight],dp[j]+val);
    }
  }
  int ans = 0;
  for(int i=0;i<=w;i++)
  {
    max_new(ans,dp[i]);
  }
  
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:13: error: cannot bind non-const lvalue reference of type 'll&' {aka 'long long int&'} to a value of type 'int'
   25 |     max_new(ans,dp[i]);
      |             ^~~
a.cc:4:18: note:   initializing argument 1 of 'void max_new(ll&, ll)'
    4 | void max_new(ll& a,ll b)
      |              ~~~~^
Language: C++

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

int ans(int n){
    if (cost[n] != -1)
        return cost[n];
    cost[n] = min(ans(n-1) + abs(h[n] - h[n-1]),
                  ans(n-2) + abs(h[n] - h[n-2]));
    return cost[n];
}

int main(){
    int n; cin>>n;
	vector<int> h(100001);
	vector<int> cost(100001);
  	rep(i,n){
        cin >> h[i];
        cost[i] = -1;
    }
    cost[0] = 0;
    cost[1] = abs(h[1] - h[0]);
    cout << ans(n-1) << endl;
}

Compiler output:
a.cc: In function 'int ans(int)':
a.cc:6:9: error: 'cost' was not declared in this scope; did you mean 'cosl'?
    6 |     if (cost[n] != -1)
      |         ^~~~
      |         cosl
a.cc:8:5: error: 'cost' was not declared in this scope; did you mean 'cosl'?
    8 |     cost[n] = min(ans(n-1) + abs(h[n] - h[n-1]),
      |     ^~~~
      |     cosl
a.cc:8:34: error: 'h' was not declared in this scope
    8 |     cost[n] = min(ans(n-1) + abs(h[n] - h[n-1]),
      |                                  ^
Language: Java

import java.util.*;
public class Main
{
  public static void main(String[] args )
  {
    Scanner scn = new Sacnner(System.in) ;
    
    int n = scn.nextInt() ;
    
    int[] arr =new int[n] ;
    
    for(int i =0 ; i < n; i++ ) arr[i] = scn.nextInt() ;
    
    
    if( n== 1 )
    {
     System.out.print(0) ; 
    }
    else{
    long[] dp = new long[n];
    
      dp[0] =  0 ; 
      dp[1] =  (long)Math.abs(arr[1] - arr[0] ) ;
      
      for(int i =2 ; i < n; i++ )
      {
        
         long opt1  =  dp[i-1] + (long)Math.abs(arr[i] - arr[i-1] ) ;
        
         long opt2  =  dp[i-2] + (long)Math.abs(arr[i] - arr[i-2] ) ;
       
        dp[i] =  Math.min(opt1 , opt2 ) ; 
        
        
     }
      
      System.out.println(dp[n-1]) ;
    
    }
    
    
    
  }
  
  
}

Compiler output:
Main.java:6: error: cannot find symbol
    Scanner scn = new Sacnner(System.in) ;
                      ^
  symbol:   class Sacnner
  location: class Main
1 error
Language: C++

@include<bits/stdc++.h>
using namespace std;
int abs(int num){
  return num<0?-num:num;
}
int main(){
  int n;cin>>n;
  int a[n];
  for(int i=0;i<n;i++)	cin>>a[i];
  int dp[n];
  dp[0]=0;
  dp[1]=abs(a[1]-a[0]);
  for(int i=2;i<n;i++){
    dp[i]=min(dp[i-1]+abs(a[i]-a[i-1]),dp[i-2]+abs(a[i]-a[i-2]));
  }
  cout<<dp[n-1]<<endl;
  return 0;
}

Compiler output:
a.cc:1:1: error: stray '@' in program
    1 | @include<bits/stdc++.h>
      | ^
a.cc:1:2: error: 'include' does not name a type
    1 | @include<bits/stdc++.h>
      |  ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:9: error: 'cin' was not declared in this scope
    7 |   int n;cin>>n;
      |         ^~~
a.cc:14:11: error: 'min' was not declared in this scope; did you mean 'main'?
   14 |     dp[i]=min(dp[i-1]+abs(a[i]-a[i-1]),dp[i-2]+abs(a[i]-a[i-2]));
      |           ^~~
      |           main
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout<<dp[n-1]<<endl;
      |   ^~~~
a.cc:16:18: error: 'endl' was not declared in this scope
   16 |   cout<<dp[n-1]<<endl;
      |                  ^~~~
Language: C++

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

int main()
{
  int n;
  cin>>n;
  int a[n+1];
  for(int i=1;i<=n;i++)
  {
	cin>>a[i];
  }
  int dp[n+1];
  dp[0] = 0;
  dp[1] = abs(a[1] - a[0])
  for(int i=3;i<=n;i++)
  {
	dp[i] = min(dp[i-1] + abs(a[i]-a[i-1]),dp[i-2] + abs(a[i]-a[i-2]));
  }
  cout<<dp[n]<<endl;
} 


Compiler output:
a.cc: In function 'int main()':
a.cc:15:27: error: expected ';' before 'for'
   15 |   dp[1] = abs(a[1] - a[0])
      |                           ^
      |                           ;
   16 |   for(int i=3;i<=n;i++)
      |   ~~~                      
a.cc:16:15: error: 'i' was not declared in this scope
   16 |   for(int i=3;i<=n;i++)
      |               ^
Language: C++

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

int main()
{
  int n;
  cin>>n;
  int a[n+1];
  for(int i=1;i<=n;i++)
  {
	cin>>a[i];
  }
  dp[n+1];
  dp[1] = 0;
  dp[2] = abs(a[1] - a[0])
  for(int i=3;i<=n;i++)
  {
	dp[i] = min(dp[i-1] + abs(a[i]-a[i-1]),dp[i-2] + abs(a[i]-a[i-2]));
  }
  cout<<dp[n]<<endl;
} 


Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   13 |   dp[n+1];
      |   ^~
      |   dup
a.cc:16:15: error: 'i' was not declared in this scope
   16 |   for(int i=3;i<=n;i++)
      |               ^
Language: C++

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

int main()
{
  int n;
  cin>>n;
  int a[n+1];
  for(int i=1;i<=n;i++)
  {
	cin>>a[i];
  }
  dp[0] = 0;
  dp[1] = abs(a[1] - a[0])
  for(int i=3;i<=n;i++)
  {
	dp[i] = min(dp[i-1] + abs(a[i]-a[i-1]),dp[i-2] + abs(a[i]-a[i-2]));
  }
  cout<<dp[n]<<endl;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   13 |   dp[0] = 0;
      |   ^~
      |   dup
a.cc:15:15: error: 'i' was not declared in this scope
   15 |   for(int i=3;i<=n;i++)
      |               ^
Language: C++

#include <bits/stdc++.h>

using namespace std;


// Bismilahir Rahmanir Rahim


typedef unsigned int ui;
typedef long long int lli;
typedef unsigned long long int ulli;
typedef short int si;
typedef unsigned short int usi;
typedef pair <int, int> pii;


#define CASE false
#define TEST false
#define BUFFER true
#define TIME false
#define DEBUG true
#define SET_GEN false
#define _ << " " <<
#define __ << "\n"
#define ff first
#define ss second
#define RANGE(a, b) (rand() % (b-a+1) + a)


const double pi = acos(-1.);
const double eps = 1e-7;
const int high = 2e9;
const int inf = 2147483647;
const int _inf = -2147483648;
const lli INF = 1e18;
const int mod = 1e9+7;


void delay(int sec); // DEBUG

const int maxn = 1e5 + 1;
int n;
int height[maxn];
int cost[maxn];

void solution(void)
{	
	cin >> n;
	
	memset(cost, -1, sizeof(cost));
	
	for(int i = 1; i <= n; ++i) 
		cin >> height[i];
	
	
	cout << dp(1);
	

    return ;
}

int main(int argc, char *arv[])
{
    #if BUFFER
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    #endif

    #if SET_GEN
    srand((unsigned int) time(0));
    #endif

    int t = 1;

    #if CASE
    int cnt = 1;
    #endif

    #if TEST
    cin >> t;
    #endif

    #if TIME
    clock_t start_time, end_time;
    double time_elapsed;
    #endif


    while(t--) {

        #if TIME
        start_time = clock();
        #endif

        #if CASE
        cout << "Case " << cnt++ << ": ";
        #endif

        solution();

        #if TIME
        end_time = clock();

        time_elapsed = (double) (end_time - start_time) / CLOCKS_PER_SEC;

        cout << "\nRuntime: " << fixed << setprecision(7) << time_elapsed << "\n";
        #endif
    }


    return 0;
}

void delay(int sec)
{
    int mili_sec = 1000 * sec;

    clock_t start_time = clock();

    while (clock() < start_time + mili_sec);

    return ;
}


Compiler output:
a.cc: In function 'void solution()':
a.cc:56:17: error: 'dp' was not declared in this scope; did you mean 'dup'?
   56 |         cout << dp(1);
      |                 ^~
      |                 dup
Language: C++

#include<iostream>
using namespace std;
#define inf 1e9
int n;
int solve(int* arr, int n)
{
	vector<int>dp(n + 1);
	dp[1] = 0;
	if(n==2)return dp[2] = abs(arr[2] - arr[1]);
	for(int i = 2; i <= n; i++){
		int option1 = abs(arr[i] - arr[i-1]) + dp[i - 1];
		int option2 = (i==2)?inf:abs(arr[i] - arr[i-2]) + dp[i - 2];
		dp[i] = min(option1, option2);
	}
	return dp[n];
}
int main()
{
	cin >> n;
	int arr[n + 1];
	for(int i = 1; i <= n; i++)cin >> arr[i];
	cout << solve(arr, n);
	return 0;
}

Compiler output:
a.cc: In function 'int solve(int*, int)':
a.cc:7:9: error: 'vector' was not declared in this scope
    7 |         vector<int>dp(n + 1);
      |         ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:7:16: error: expected primary-expression before 'int'
    7 |         vector<int>dp(n + 1);
      |                ^~~
a.cc:8:9: error: 'dp' was not declared in this scope
    8 |         dp[1] = 0;
      |         ^~
Language: C++

#include<iostream>
using namespace std;
#define inf 1e9
int n;
int solve(int* arr, int n)
{
	vector<int>dp(n + 1);
	dp[1] = 0;
	if(n==2)return dp[2] = abs(arr[2] - arr[1]);
	for(int i = 2; i <= n; i++){
		int option1 = abs(arr[i] - arr[i-1]) + dp[i - 1];
		int option2 = (i==2)?inf:abs(arr[i] - arr[i-2]) + dp[i - 2];
		dp[i] = min(option1, option2);
	}
	return dp[n];
}
int main()
{
	cin >> n;
	int arr[n + 1];
	for(int i = 1; i <= n; i++)cin >> arr[i];
	cout << solve(arr, n, dp);
	return 0;
}

Compiler output:
a.cc: In function 'int solve(int*, int)':
a.cc:7:9: error: 'vector' was not declared in this scope
    7 |         vector<int>dp(n + 1);
      |         ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:7:16: error: expected primary-expression before 'int'
    7 |         vector<int>dp(n + 1);
      |                ^~~
a.cc:8:9: error: 'dp' was not declared in this scope
    8 |         dp[1] = 0;
      |         ^~
a.cc: In function 'int main()':
a.cc:22:31: error: 'dp' was not declared in this scope
   22 |         cout << solve(arr, n, dp);
      |                               ^~
Language: C++

#include<iostream>
using namespace std;
#define inf 1e9
int n;
int solve(int* arr, int n, int* dp)
{
	vector<int>dp(n + 1);
	dp[1] = 0;
	if(n==2)return dp[2] = abs(arr[2] - arr[1]);
	for(int i = 2; i <= n; i++){
		int option1 = abs(arr[i] - arr[i-1]) + dp[i - 1];
		int option2 = (i==2)?inf:abs(arr[i] - arr[i-2]) + dp[i - 2];
		dp[i] = min(option1, option2);
	}
	return dp[n];
}
int main()
{
	cin >> n;
	int arr[n + 1];
	for(int i = 1; i <= n; i++)cin >> arr[i];
	cout << solve(arr, n, dp);
	return 0;
}

Compiler output:
a.cc: In function 'int solve(int*, int, int*)':
a.cc:7:9: error: 'vector' was not declared in this scope
    7 |         vector<int>dp(n + 1);
      |         ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:7:16: error: expected primary-expression before 'int'
    7 |         vector<int>dp(n + 1);
      |                ^~~
a.cc: In function 'int main()':
a.cc:22:31: error: 'dp' was not declared in this scope
   22 |         cout << solve(arr, n, dp);
      |                               ^~
Language: Java

import java.util.*;
 
class solution{
  public static void main(String[] args){
    Sanner scn = new Scanner(System.in);
    int n = scn.nextInt();
    int[] arr = new int[n];
    for(int i = 0 ; i < n ; i++) arr[i] = scn.nextInt();
    int[] dp = new int[n];
    Arrays.fill(dp , Integer.MAX_VALUE);
    for(int i = n - 1 ; i > 1 ; i--){
      for(int j = i - 1 ; j >= i - 2 ; j--){
        dp[j] = Math.min(dp[j] , dp[i] + Math.abs(arr[i] - arr[j]));
      }
    }System.out.println(Math.min(dp[0] , dp[1]));
  }
}

Compiler output:
Main.java:5: error: cannot find symbol
    Sanner scn = new Scanner(System.in);
    ^
  symbol:   class Sanner
  location: class solution
1 error
Language: Java

import java.util.*;
 
class solution{
  public static void main(String[] args){
    Sanner scn = new Scanner(System.in);
    int n = scn.nextInt();
    int[] arr = new int[n];
    for(int i = 0 ; i < n ; i++) arr[i] = scn.nextInt();
    int[] dp = new int[n];
    Arrays.fill(dp , Integer.MAX_VALUE);
    for(int i = n - 1 ; i > 1 ; i--){
      for(int j = i - 1 ; j >= i - 2 ; j--){
        dp[j] = Math.min(dp[j] , dp[i] + Math.abs(arr[i] - arr[j]));
      }
    }return Math.min(dp[0] , dp[1]);
  }
}

Compiler output:
Main.java:5: error: cannot find symbol
    Sanner scn = new Scanner(System.in);
    ^
  symbol:   class Sanner
  location: class solution
Main.java:15: error: incompatible types: unexpected return value
    }return Math.min(dp[0] , dp[1]);
                    ^
2 errors
Language: Java

import java.util.*;

class solution{
  public static void main(String[] args){
    Sanner scn = new Scanner(System.in);
    int n = scn.nextInt();
    int[] arr = new int[n];
    for(int i = 0 ; i < n ; i++) arr[i] = scn.nextInt();
    int[] dp = new int[n];
    Arrays.fill(dp , Integer.MAX_VALUE);
    for(int i = n - 1 ; i > 1 ; i--){
      for(int j = i - 1 ; j > = i - 2 ; j--){
        dp[j] = Math.min(dp[j] , dp[i] + Math.abs(arr[i] - arr[j]));
      }
    }return Math.min(dp[0] , dp[1]);
  }
}

Compiler output:
Main.java:12: error: illegal start of expression
      for(int j = i - 1 ; j > = i - 2 ; j--){
                              ^
1 error
Language: C++

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

ll solve(ll arr[] , int size){
    ll dp[size];
    dp[0] = 0 , dp[1] = abs(arr[1] - arr[0]);
    for(int i = 2;i < size;i++){
        dp[i] = min(abs(arr[i] - arr[i - 2]) + dp[i - 2] , abs(arr[i] - arr[i - 1]) + dp[i - 1]);
    }
    ll ans = dp[size - 1];
    return ans;
}

int main(){
    int n;
    cin >> n;
    ll arr[n];
    for(int i = 0;i < n;i++)
        cin >> arr[i];
    ll ans = solve(arr , n);
    cout << ans << "\n";
}

Compiler output:
a.cc:3:1: error: 'typdef' does not name a type; did you mean 'typedef'?
    3 | typdef long long int ll;
      | ^~~~~~
      | typedef
a.cc:5:1: error: 'll' does not name a type
    5 | ll solve(ll arr[] , int size){
      | ^~
a.cc: In function 'int main()':
a.cc:18:5: error: 'll' was not declared in this scope
   18 |     ll arr[n];
      |     ^~
a.cc:20:16: error: 'arr' was not declared in this scope
   20 |         cin >> arr[i];
      |                ^~~
a.cc:21:7: error: expected ';' before 'ans'
   21 |     ll ans = solve(arr , n);
      |       ^~~~
      |       ;
a.cc:22:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   22 |     cout << ans << "\n";
      |             ^~~
      |             abs