criyle/codenet-compile-errors huggingface dataset:
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;

public class Main2 {
    public int minJumps(int[] heights) {
		return dfs(heights, 0);
	}
	private int dfs(int[] heights, int currPos) {
		int n = heights.length;
		if (currPos + 1 >= n) {
			return 0;
		}
		int oneJump = Math.abs(heights[currPos] - heights[currPos + 1]) + dfs(heights, currPos + 1);
		int twoJumps = Integer.MAX_VALUE;
		if (currPos + 2 < n) {
			twoJumps = Math.abs(heights[currPos] - heights[currPos + 2]) + dfs(heights, currPos + 2);
		}
		return Math.min(oneJump, twoJumps);
	}

    public static void main(String[] args)  {
        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
            int n = Integer.parseInt(br.readLine());
            String heightsStr = br.readLine();
            String[] split = heightsStr.split(" ");
          	int[] heights = new int[n];
            for (int i = 0; i < n; i++) {
              	heights[i] = Integer.parseInt(split[i]);
            }
          	Main app = new Main();
            int result = app.minJumps(heights);
            System.out.println(result);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}


Compiler output:
Main.java:6: error: class Main2 is public, should be declared in a file named Main2.java
public class Main2 {
       ^
Main.java:32: error: cannot access Main
          	Main app = new Main();
          	^
  bad source file: ./Main.java
    file does not contain class Main
    Please remove or make sure it appears in the correct subdirectory of the sourcepath.
2 errors
Language: Java

import java.util.*;
public class frog1
{
public static void main(String args[])
{
Scanner sc= new Scanner(System.in);
  int n=sc.nextInt();
  int a[]=new int[n];
  for(int i=0;i<n;i++)
  a[i]=sc.nextInt();
  int dp[]=new int[n];
  dp[0]=0;
  dp[1]=Math.abs(a[1]-a[0]);
  for(int i=2;i<n;i++)
    dp[i]=Math.min(Math.abs(a[i]-a[i-2])+dp[i-2],Math.abs(a[i]-a[i-1])+dp[i-1]);
  System.out.println(dp[n-1]);
}
}

Compiler output:
Main.java:2: error: class frog1 is public, should be declared in a file named frog1.java
public class frog1
       ^
1 error
Language: C++

h#include<bits/stdc++.h>
using namespace std;
#define ll long long 
int main (){

ll n,a[100009],dp[100009];
cin>>n;
for(int i=0;i<n;i++)cin>>a[i];
dp[n-2]=abs(a[n-1]-a[n-2]);
dp[n-1]=0;
for(int i=n-3;i>=0;i--)
dp[i]=min(abs(a[i+2]-a[i])+dp[i+2],abs(a[i+1]-a[i])+dp[i+1]);

cout<<dp[0]<<endl;
}

Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | h#include<bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'h' does not name a type
    1 | h#include<bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:7:1: error: 'cin' was not declared in this scope
    7 | cin>>n;
      | ^~~
a.cc:9:9: error: 'abs' was not declared in this scope
    9 | dp[n-2]=abs(a[n-1]-a[n-2]);
      |         ^~~
a.cc:12:7: error: 'min' was not declared in this scope; did you mean 'main'?
   12 | dp[i]=min(abs(a[i+2]-a[i])+dp[i+2],abs(a[i+1]-a[i])+dp[i+1]);
      |       ^~~
      |       main
a.cc:14:1: error: 'cout' was not declared in this scope
   14 | cout<<dp[0]<<endl;
      | ^~~~
a.cc:14:14: error: 'endl' was not declared in this scope
   14 | cout<<dp[0]<<endl;
      |              ^~~~
Language: Java

import java.util.*;
class frog1
{
public static void main(String args[])
{
Scanner sc= new Scanner(System.in);
  int n=sc.nextInt();
  int a[]=new int[n];
  for(int i=0;i<n;i++)
  a[i]=sc.nextInt();
  int dp[]=new int[n];
  dp[0]=0;
  dp[1]=Math.abs(a[1]-a[0]);
  for(int i=2;i<n;i++)
    dp[i]=Math.min(Math.abs(a[i]-a[i-2])+dp[i-2],Math.abs(a[i]-a[i-1])+dp[i-1]);
  System.out.println(dp[n-1]);

Compiler output:
Main.java:16: error: reached end of file while parsing
  System.out.println(dp[n-1]);
                              ^
1 error
Language: Java

import java.util.*
import java.io.*
public class Sol{
	public static void main(String[] args) throws IOException{
    	Scanner sc = new Scanner;
    	int n = sc.nextInt();
        int frog[] = new int[n];
        int dp[] = new int[n];
    	for(int i=0; i<n; i++) {
    		frog[i] = sc.nextInt();
        }
        dp[0] = 0;
        dp[i] = Math.abs(frog[1]-frog[0]);
        for(int i=2; i<n; i++) {
        	first = Math.abs(frog[i]-frog[i-2]);
            second = Math.abs(frog[i]-frog[i-1]);
            dp[i] = Math.min(dp[i-2]+second, dp[i-1]+first);
        }
    }
}


Compiler output:
Main.java:1: error: ';' expected
import java.util.*
                  ^
Main.java:2: error: ';' expected
import java.io.*
                ^
Main.java:5: error: '(' or '[' expected
    	Scanner sc = new Scanner;
    	                        ^
3 errors
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;

public class Main {
	int min;
	public int minJumps(int[] heights) {
		min = Integer.MAX_VALUE;
		dfs(heights, 0, 0);
		return min;
	}
	private int dfs(int[] heights, int position, int distanceSoFar) {
		int n = height.length;
		if (position == n - 1) {
			min = Math.min(min, distanceSoFar);
			return;
		}
		if (position >= n) {
			return;
		}
		dfs(heights, position + 1, distanceSoFar + heights[position]);
dfs(heights, position + 2, distanceSoFar + heights[position]); 
	}


    public static void main(String[] args)  {
        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
            int n = Integer.parseInt(br.readLine()));
            String heightsStr = br.readLine();
            String[] split = heights.split(" ");
          	int[] heights = new int[n];
            for (int i = 0; i < n; i++) {
              	heights[i] = Integer.parseInt(split[i]);
            }
          	Main app = new Main();
            int result = app.minJumps(heights);
            System.out.println(result);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}


Compiler output:
Main.java:30: error: ';' expected
            int n = Integer.parseInt(br.readLine()));
                                                   ^
1 error
Language: Java

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

public final class Main
{
    public static void main (String[] args) throws java.lang.Exception {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] arr = new int[n];
      for(int i =0; i< n; i++)
        arr[i]= in.nextInt();
        
        int[] dp = new int[n];
        dp[0] =0;
         dp[1]= Math.abs(arr[1]-arr[0]);
      for(int i =2; i< n ; i++) {
         dp[i] = Math.min(Math.abs(arr[i]-arr[i-1])+ dp[i-1], 
                         Math.abs(arr[i]- arr[i-2])+ dp[i-2]);
      }
      return dp[n-1];
    }
}


Compiler output:
Main.java:21: error: incompatible types: unexpected return value
      return dp[n-1];
               ^
1 error
Language: Java

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

public final class Main
{
    public static void main (String[] args) throws java.lang.Exception {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] arr = new int[n];
      for(int i =0; i< n; i++)
        arr[i]= in.nextInt()';
        
        int[] dp = new int[n];
        dp[0] =0;
         dp[1]= Math.abs(arr[1]-arr[0]);
      for(int i =2; i< n ; i++) {
         dp[i] = Math.min(Math.abs(arr[i]-arr[i-1])+ dp[i-1], 
                         Math.abs(arr[i]- arr[i-2])+ dp[i-2]);
      }
      return dp[n-1];
    }
}

Compiler output:
Main.java:12: error: unclosed character literal
        arr[i]= in.nextInt()';
                            ^
1 error
Language: C++

[8:10 PM, 4/7/2020] +20 101 325 6072: #include <bits/stdc++.h>
using namespace std;
int n;vector<int>v;
int ans(int i){
	if(i>=n)return sum;
	if(i==n-2)return abs(v[i]-v[n-1]);
	if(i==n-3)return abs(v[i]-v[n-1]);
int &ret=dp;
	if(ret!=2e9)return 2e9;
	ret = min(ret,ans(i+1)+abs(v[i]-v[i+1]));
	ret = min(ret,ans(i+2)+abs(v[i]-v[i+2]));
	return ret;
}
int main() {
v.resize(n+1);
fill(dp,dp+n+1,2e9);
for(auto &t:v)cin>>t;
cout<<ans(0)<<endl;
return 0;
}

Compiler output:
a.cc:1:39: error: stray '#' in program
    1 | [8:10 PM, 4/7/2020] +20 101 325 6072: #include <bits/stdc++.h>
      |                                       ^
a.cc:1:1: error: expected unqualified-id before '[' token
    1 | [8:10 PM, 4/7/2020] +20 101 325 6072: #include <bits/stdc++.h>
      | ^
a.cc:3:7: error: 'vector' does not name a type
    3 | int n;vector<int>v;
      |       ^~~~~~
a.cc: In function 'int ans(int)':
a.cc:5:24: error: 'sum' was not declared in this scope
    5 |         if(i>=n)return sum;
      |                        ^~~
a.cc:6:30: error: 'v' was not declared in this scope
    6 |         if(i==n-2)return abs(v[i]-v[n-1]);
      |                              ^
a.cc:6:26: error: 'abs' was not declared in this scope; did you mean 'ans'?
    6 |         if(i==n-2)return abs(v[i]-v[n-1]);
      |                          ^~~
      |                          ans
a.cc:7:30: error: 'v' was not declared in this scope
    7 |         if(i==n-3)return abs(v[i]-v[n-1]);
      |                              ^
a.cc:7:26: error: 'abs' was not declared in this scope; did you mean 'ans'?
    7 |         if(i==n-3)return abs(v[i]-v[n-1]);
      |                          ^~~
      |                          ans
a.cc:8:10: error: 'dp' was not declared in this scope
    8 | int &ret=dp;
      |          ^~
a.cc:10:36: error: 'v' was not declared in this scope
   10 |         ret = min(ret,ans(i+1)+abs(v[i]-v[i+1]));
      |                                    ^
a.cc:10:32: error: 'abs' was not declared in this scope; did you mean 'ans'?
   10 |         ret = min(ret,ans(i+1)+abs(v[i]-v[i+1]));
      |                                ^~~
      |                                ans
a.cc:10:15: error: 'min' was not declared in this scope
   10 |         ret = min(ret,ans(i+1)+abs(v[i]-v[i+1]));
      |               ^~~
a.cc: In function 'int main()':
a.cc:15:1: error: 'v' was not declared in this scope
   15 | v.resize(n+1);
      | ^
a.cc:16:6: error: 'dp' was not declared in this scope
   16 | fill(dp,dp+n+1,2e9);
      |      ^~
a.cc:16:1: error: 'fill' was not declared in this scope
   16 | fill(dp,dp+n+1,2e9);
      | ^~~~
a.cc:17:15: error: 'cin' was not declared in this scope
   17 | for(auto &t:v)cin>>t;
      |               ^~~
a.cc:18:1: error: 'cout' was not declared in this scope
   18 | cout<<ans(0)<<endl;
      | ^~~~
a.cc:18:15: error: 'endl' was not declared in this scope
   18 | cout<<ans(0)<<endl;
      |               ^~~~
Language: C++

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


int findcost(int n,vector<int> h){
    int dp[n+1];

   dp[1] = 0;
   dp[2] = abs(h[2]-h[1]);
   dp[3] = abs(h[3]-h[1]);

    for(int j=4;j<=n;j++){
        dp[j] = min(dp[j-1]+abs(h[j-1]-h[j]),dp[j-2]+abs(h[j-2]-h[j]));
    }
    return dp[n];
}


int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin>>n;
    vector<int> h(n+1);
    for(int i=1;i<=n;i++)
        cin>>h[i];

    if(n == 1){
        cout<<0<<endl;
        return;
    }
    if(n == 2){
        cout<<abs(h[2]-h[1])<<endl;
        return;
    }
    cout<<findcost(n,h)<<endl;


    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   30 |         return;
      |         ^~~~~~
a.cc:34:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   34 |         return;
      |         ^~~~~~
Language: Java

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

public class AFrog1{

    static BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
    static StringBuilder sb = new StringBuilder();
    static StringTokenizer stk = new StringTokenizer("");

    public static void main(String args[]){
        try{
            int N = Integer.parseInt(bf.readLine());
            stk = new StringTokenizer(bf.readLine());
            int arr[] = new int[N];
            for(int i=0;i<N;i++){
                arr[i] = Integer.parseInt(stk.nextToken());
            }

            System.out.println(solver(arr,N));
            bf.close();
        }catch(Exception e){
            e.printStackTrace();
        }
    }

    public static int solver(int[] arr,int N){
        if(N <= 1)
            return 0;
            
        int dp[]  = new int[N];
        dp[0] = 0;

        for(int i=1;i<N;i++){
            dp[i] = Math.min(dp[i-1] + Math.abs(arr[i] - arr[i-1]) , (i-2 >= 0) ? (dp[i-2] + Math.abs(arr[i] - arr[i-2])) : Integer.MAX_VALUE );
        }
        return dp[N-1];
    }
}

Compiler output:
Main.java:5: error: class AFrog1 is public, should be declared in a file named AFrog1.java
public class AFrog1{
       ^
1 error
Language: Java

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

public class Main{

    static BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
    static StringBuilder sb = new StringBuilder();
    static StringTokenizer stk = new StringTokenizer("");

    public static void main(String args[]){
        try{
            int N = Integer.parseInt(bf.readLine());
            stk = new StringTokenizer(bf.readLine());
            int arr[] = new int[N];
            for(int i=0;i<N;i++){
                arr[i] = Integer.parseInt(stk.nextToken());
            }

            System.out.println(solver(arr,N));
            bf.close();
        }catch(Exception e){
            e.printStackTrace();
        }
    }

    public static int solver(int[] arr,int N){
        if(N <= 1)
            retrun 0;
            
        int dp[]  = new int[N];
        dp[0] = 0;

        for(int i=1;i<N;i++){
            dp[i] = Math.min(dp[i-1] + Math.abs(arr[i] - arr[i-1]) , (i-2 >= 0) ? (dp[i-2] + Math.abs(arr[i] - arr[i-2])) : Integer.MAX_VALUE );
        }
        return dp[N-1];
    }
}

Compiler output:
Main.java:29: error: not a statement
            retrun 0;
            ^
Main.java:29: error: ';' expected
            retrun 0;
                  ^
2 errors
Language: C++

using namespace std;
#include<iostream>
#include<vector>
#include<queue>
#include<map>
#include <unordered_set>
#include <set>
#include <unordered_map>

#define INT_MIN     (-2147483647 - 1)
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL);
#define rep(c) for(int i = 0; i <(c); ++i)
#define rrep(n) for(int i = (n) ; i >=0 ; --i)
#define fora(i, s, c) for(int i = (s); i < (c); ++i)
#define forr(i, s, c) for(int i = (s); i > (c); --i)
#define endl "\n"
#define ret(n) return n
#define pb push_back
#define eb emplace_back
#define ff first;
#define ss second;
#define mp make_pair;
#define all(p) p.begin(),p.end()
#define mid(s,e) (s+(e-s)/2)

vi dp;
int mincost(vi& ht, int n, int idx)
{
	if (idx == n - 1)
		return 0; //reached
	if (dp[idx] != -1)
		return dp[idx];
	if (idx + 2 < n)
	{
		int jump_one = abs(ht[idx + 1] - ht[idx]) + mincost(ht, n, idx + 1);

		int jump_two = abs(ht[idx + 2] - ht[idx]) + mincost(ht, n, idx + 2);

		dp[idx] =  min(jump_one, jump_two);
		return dp[idx];
	}
	else if (idx + 1 < n)
	{
		dp[idx] = abs(ht[idx + 1] - ht[idx]) + mincost(ht, n, idx + 1);
		return dp[idx];
	}
	
}

int main()
{
	int n;
	cin >> n;
	vi ht(n);
	rep(n)
		cin >> ht[i];
	dp.resize(n, -1);
	auto ans = mincost(ht, n, 0);
	cout << ans;
	ret(0);
}

Compiler output:
a.cc:26:1: error: 'vi' does not name a type; did you mean 'void'?
   26 | vi dp;
      | ^~
      | void
a.cc:27:13: error: 'vi' was not declared in this scope; did you mean 'void'?
   27 | int mincost(vi& ht, int n, int idx)
      |             ^~
      |             void
a.cc:27:17: error: 'ht' was not declared in this scope
   27 | int mincost(vi& ht, int n, int idx)
      |                 ^~
a.cc:27:21: error: expected primary-expression before 'int'
   27 | int mincost(vi& ht, int n, int idx)
      |                     ^~~
a.cc:27:28: error: expected primary-expression before 'int'
   27 | int mincost(vi& ht, int n, int idx)
      |                            ^~~
a.cc:27:35: error: expression list treated as compound expression in initializer [-fpermissive]
   27 | int mincost(vi& ht, int n, int idx)
      |                                   ^
a.cc: In function 'int main()':
a.cc:54:9: error: 'vi' was not declared in this scope
   54 |         vi ht(n);
      |         ^~
a.cc:56:24: error: 'ht' was not declared in this scope
   56 |                 cin >> ht[i];
      |                        ^~
a.cc:57:9: error: 'dp' was not declared in this scope; did you mean 'mp'?
   57 |         dp.resize(n, -1);
      |         ^~
      |         mp
a.cc:58:28: error: 'ht' was not declared in this scope
   58 |         auto ans = mincost(ht, n, 0);
      |                            ^~
a.cc:58:27: error: 'mincost' cannot be used as a function
   58 |         auto ans = mincost(ht, n, 0);
      |                    ~~~~~~~^~~~~~~~~~
Language: C++

#include <iostream>
#include <string>
#include <iterator>
#include <unordered_set>
#include <unordered_map>
#include <algorithm>
#include <sstream> 
#include <vector>
#include <cmath>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <functional>
#pragma GCC optimize("O3")
using namespace std;
#define fast ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define ll long long
#define sp system("pause");
#define MOD 998244353 
#define mxN 2005


int main()
{
	fast;
	ll n;
	cin >> n;
	vector<int> h(n);
	for (int i = 0; i < n; i++)
	{
		cin >> h[i];
	}
	vector<ll> dp(n, INT_MAX);
	dp[0] = 0;
	for (int i = 0; i < n; i++)
	{
		for (int j : {i + 1, i + 2})
		{
			if (j < n)
			{
				dp[j] = min(dp[j], dp[i] + abs(h[i] - h[j]));
			}
		}
	}
	cout << min(dp[n-1],dp[n-2]);
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:26: error: 'INT_MAX' was not declared in this scope
   34 |         vector<ll> dp(n, INT_MAX);
      |                          ^~~~~~~
a.cc:15:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   14 | #include <functional>
  +++ |+#include <climits>
   15 | #pragma GCC optimize("O3")
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin>>n;
  vector<int>vec(n+1);
  vetor<int>dp(n+1);
  dp[0]=0;
  dp[1]=0;
  dp[2]=abs(vec[2]-vec[1]);
  for(int i=1;i<=n;i++)
    cin>>vec[i];
  
  for(int i=3;i<=n;i++)
    dp[i]=min(dp[i-1],dp[i-2]);
  
  cout<<dp[n]<<endl;
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'vetor' was not declared in this scope
    7 |   vetor<int>dp(n+1);
      |   ^~~~~
a.cc:7:9: error: expected primary-expression before 'int'
    7 |   vetor<int>dp(n+1);
      |         ^~~
a.cc:8:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
    8 |   dp[0]=0;
      |   ^~
      |   dup
a.cc:17:21: error: expected '}' at end of input
   17 |   cout<<dp[n]<<endl;
      |                     ^
a.cc:3:12: note: to match this '{'
    3 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <vector>

using namespace std;

void print_arr(vector<int> arr) {
  for(int i=0;i<arr.size();++i) {
    cout << arr[i] << " ";
  }
  cout << "\n";
}

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

  vector<int> dp(n,INT_MAX);
  dp[0] = 0;
  for(int i=0;i<n;++i) {
    for(int j=i+1 ; j<=i+2; ++j) {
      if(j < n){
	dp[j] = min(dp[j], dp[i]+abs(arr[i]-arr[j]));
      }
    }
  }
  //  print_arr(dp);
  cout << dp[n-1] << "\n";
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:20: error: 'INT_MAX' was not declared in this scope
   21 |   vector<int> dp(n,INT_MAX);
      |                    ^~~~~~~
a.cc:3:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    2 | #include <vector>
  +++ |+#include <climits>
    3 |
Language: C++

#include<bits/stdc++.h>
#define vi vector<int>
#include <algorithm>
#include <iterator>
#include<iostream>

using namespace std;

string s;
int main()
{
   int a[10000];
   int n;
   scanf("%d", &n);
   
   for(int i=0;i<n;i++)scanf("%d", &a[i]);
   
   dp[1] = 0;
   dp[2] = abs(a[0]- a[1]);
    
   vector<int> dp(n);
   for(int i =2;i<n;i++)
   {
     dp[i] = min(abs(a[i] - dp[i-1]), abs(a[i] - dp[i-2])); 
   }
  	
   cout<<dp[n-1];
    
   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:4: error: 'dp' was not declared in this scope; did you mean 'dup'?
   18 |    dp[1] = 0;
      |    ^~
      |    dup
Language: C++

dp[n-1] = 0;
	dp[n-2] = abs(a[n-2] - a[n-1]);

Compiler output:
a.cc:1:1: error: 'dp' does not name a type
    1 | dp[n-1] = 0;
      | ^~
a.cc:2:9: error: 'dp' does not name a type
    2 |         dp[n-2] = abs(a[n-2] - a[n-1]);
      |         ^~
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:27:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   27 |   cout << ans(a,n-1,n,dp)<<endl;
      |           ^~~
      |           abs
Language: C++

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

  cout << ans(a,n-1,n,dp)<<endl;
}


Compiler output:
a.cc: In function 'int ans(std::vector<int>, int, int, std::vector<int>)':
a.cc:11:25: error: too few arguments to function 'int ans(std::vector<int>, int, int, std::vector<int>)'
   11 |   return dp[i] = min(ans(a,i-1,n)+abs(a[i]-a[i-1]), ans(a,i-2,n)+abs(a[i]-a[i-2]) );
      |                      ~~~^~~~~~~~~
a.cc:3:5: note: declared here
    3 | int ans(vector<int> a,int i,int n,vector<int> dp){
      |     ^~~
a.cc:11:56: error: too few arguments to function 'int ans(std::vector<int>, int, int, std::vector<int>)'
   11 |   return dp[i] = min(ans(a,i-1,n)+abs(a[i]-a[i-1]), ans(a,i-2,n)+abs(a[i]-a[i-2]) );
      |                                                     ~~~^~~~~~~~~
a.cc:3:5: note: declared here
    3 | int ans(vector<int> a,int i,int n,vector<int> dp){
      |     ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int ans(vector<int> a,int i,int n){
	if(i==0){
    	return 0;
    }
  if(i==1){
  	return abs(a[1]-a[0]);
  }
  else{
  	return max(ans(a,i-1,n)+abs(a[i]-a[i-1]), ans(a,i-2,n)+abs(a[i]-a[i-2]) );
  }
}
int main(){
	int n;
	cin>>n;
  vector<int> a(n);
  for(int i=0;i<n;i++){
  	cin>>a[i];
  }
  cout<<answer(a,n-1,n)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:9: error: 'answer' was not declared in this scope
   21 |   cout<<answer(a,n-1,n)<<endl;
      |         ^~~~~~
Language: C++

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

int main()
{
	int n,k;
	long long int best;
	cin>>n>>k;
	int a[n];
	for(int i=0;i<n;i++)
	{
		cin>>a[i];
	}


	int c[n];
	c[0]=0;
	c[1]=abs(a[1]-a[0]);

	for(int i=2;i<n;i++)
	{
		best=100000;
		for(int j=1;j<=k;j++)
		{
			best=min(best,c[i-j]+abs(a[i]-a[i-j]));
		}
		c[i]=best;
	}
	cout<<c[n-1]<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:33: error: no matching function for call to 'min(long long int&, int)'
   25 |                         best=min(best,c[i-j]+abs(a[i]-a[i-j]));
      |                              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:25:33: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   25 |                         best=min(best,c[i-j]+abs(a[i]-a[i-j]));
      |                              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:25:33: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   25 |                         best=min(best,c[i-j]+abs(a[i]-a[i-j]));
      |                              ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i ,n) for(int i=0;i<(int)(n);++i)
using namespace std;
typedef long long int int64;
typedef unsigned long long uint64;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:15:44: error: 'db' was not declared in this scope; did you mean 'dp'?
   15 |         dp[i]=min(dp[i-2]+abs(h[i]-h[i-2]),db[i-1]+abs(h[i]-h[i-1]));
      |                                            ^~
      |                                            dp
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Temp {

    public static void main(String[] args) throws IOException, NumberFormatException {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(br.readLine().trim());
        int[] arr = new int[n];
        String[] s = br.readLine().trim().split("\\s+");
        for(int i=0 ; i<n ; i++)
            arr[i] = Integer.parseInt(s[i]);

        int[] dp = new int[n];
        dp[0] = 0;
        dp[1] = Math.abs(arr[0] - arr[1]);
        for(int i=2 ; i<n ; i++)
        {
            int x = dp[i-1] + Math.abs(arr[i] - arr[i-1]);
            int y = dp[i-2] + Math.abs(arr[i] - arr[i-2]);
            dp[i] = Math.min(x, y);
        }

        System.out.println(dp[n-1]);
    }
}


Compiler output:
Main.java:5: error: class Temp is public, should be declared in a file named Temp.java
public class Temp {
       ^
1 error
Language: C++

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

#define ll long long int


int main()
{
	ll n;
	cin>>n;
	ll h[n+1];
	for(int i=1; i<=n; i++) cin>>h[i];
	ll dp[n+1];
// dp [i] denotes the cost to reach step i.
	dp[1] = 0;
	dp[2] = abs(h[2]-h[1]);
	dp[3] = abs(h[3]-h[1]));

	for(int i=4; i<=n; i++)
	{
		dp[i] = min (abs(h[i]-h[i-1])+dp[i-1],abs(h[i]-h[i-2])+dp[i-2]);
	}

//	for(int i=1; i<=n; i++) cout<<dp[i]<<"\t";
//	cout<<endl;
	cout<<dp[n];

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:31: error: expected ';' before ')' token
   17 |         dp[3] = abs(h[3]-h[1]));
      |                               ^
      |                               ;
Language: C++

#include<iostream>
int main()
{
  int n;
  cin>>n;
  int a[n+1],b[n+1];
  
  for(int i=1;i<=n;i++)
    cin>>a[i];
  for(int i=1;i<=n;i++)
    b[i]=INT_MAX;
  b[0]=0;
  for(int i=1;i<=n-1;i++)
  {
    for(int j=i+1;j<=i+2 && j<=n;j++)
    {
      b[i]=min(b[i],abs(a[j]-a[i]);
    }
  }
  cout<<b[n]<<endl;
}
               

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>n;
      |   ^~~
      |   std::cin
In file included 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:11:10: error: 'INT_MAX' was not declared in this scope
   11 |     b[i]=INT_MAX;
      |          ^~~~~~~
a.cc:2:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    1 | #include<iostream>
  +++ |+#include <climits>
    2 | int main()
a.cc:17:35: error: expected ')' before ';' token
   17 |       b[i]=min(b[i],abs(a[j]-a[i]);
      |               ~                   ^
      |                                   )
a.cc:20:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   20 |   cout<<b[n]<<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:20:15: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   20 |   cout<<b[n]<<endl;
      |               ^~~~
      |               std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include<iostream.h>
#include<algorithm.h>
int mincost(int *,int);
int main(){
int n;
  cin>>n;
  int *height=new int[n];
  for(int i=0;i<n;i++){
     cin>>height[i];  
  }
  cout<<mincost(height,n);
}

int mincost(int height[],int n){
   int *output=new int[n];
  output[n-1]=height[n-1];
  output[n-2]=|height[n-1]-height[n-2]|;
  for(int i=n-3;i>=0;i--){
    int a=|height[i]-height[i+1]|+output[i+1];
    int b=|height[i]-height[i+2]|+output[i+2];
    output[i]=min(a,b);
  }
  return output[0];
}

Compiler output:
a.cc:1:9: fatal error: iostream.h: No such file or directory
    1 | #include<iostream.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: Java

static BufferedReader br  = new BufferedReader(new InputStreamReader(System.in));
static PrintWriter pw =new PrintWriter(new OutputStreamWriter(System.out));
static StringTokenizer st;
static int N =0;
static int INF = (int) (1e9+5);
    public static void main(String[] args) throws IOException {
	// write your code here
        N = Integer.parseInt(br.readLine());
        st = new StringTokenizer(br.readLine());
        int [] arr =new int[N];
        for (int i=0;i<N;i++)
            arr[i]  = Integer.parseInt(st.nextToken());
        int [] dp =new int[N];
        for (int i=0;i<N;i++)
            dp[i] = INF;
        dp[0] = 0;
        pw.println(INF+1000);
        for (int i=0;i<N;i++){
           for (int j=1;j<=2;j++) {
               int k= j+i;
               if (k<N) {
                   int u = dp[i] + Math.abs(arr[i] - arr[k]);
                   int v = dp[k];
                   System.out.println(u+ " "+v);
                   dp[k] = Math.min(u, v);
               }
           }

        }
        pw.println(dp[N-1]);
        pw.flush();
    }
}


Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
static BufferedReader br  = new BufferedReader(new InputStreamReader(System.in));
       ^
  (use --enable-preview to enable unnamed classes)
Main.java:33: error: class, interface, enum, or record expected
}
^
2 errors
Language: C++

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

#define ll long long
#define ar array

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

    vector <int> height(no_of_stones + 1, 0);
    for(int i = 1; i <= no_of_stones; i++)
        cin >> height[i];

    vector <int> minimum_cost(no_of_stones + 1);
    minimum_cost[2] = abs(height[2] - height[1]);
    for(int i = 3; i <= no_of_stones; i++)
        minimum_cost[i] = min(minimum_cost[i - 1] + abs(height[i] - height[i - 1]),
                              minimum_cost[i - 2] + abs(height[i] - height[i - 2]));
    }
    cout << minimum_cost[no_of_stones];
    return 0;
}

Compiler output:
a.cc:23:5: error: 'cout' does not name a type
   23 |     cout << minimum_cost[no_of_stones];
      |     ^~~~
a.cc:24:5: error: expected unqualified-id before 'return'
   24 |     return 0;
      |     ^~~~~~
a.cc:25:1: error: expected declaration before '}' token
   25 | }
      | ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
		string s,t;
		cin>>s>>t;
		int s1=s.size(),t1=t.size();
		string dp[s1+1][t1+1];
		for(int i=0;i<=s1;++i)
			dp[i][0]="";
		for(int i=0;i<=t1;++i)
			dp[0][i]="";

		for(int i=1;i<=s1;++i)
		{
			for(int j=1;j<=t1;++j)
			{
				if(s[i - 1] == t[j - 1]){
                    dp[i][j] = dp[i - 1][j - 1];
                    dp[i][j] += s[i - 1];
                }
                else{
                    if(dp[i][j - 1].length() > dp[i - 1][j].length()){
                        dp[i][j] = dp[i][j - 1];
                    }
                    else dp[i][j] = dp[i - 1][j];
			}
		}
		cout<<dp[s1][t1];
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:2: error: expected '}' at end of input
   30 | }
      |  ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<unordered_map>
using namespace std;
//<DEFINE>
void Fast() {
	ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
}
void File() {
#ifndef ONLINE_JUDGE
	freopen("Input.txt", "r", stdin);
	freopen("Output.txt", "w", stdout);
#endif
}
#define ll long long
#define ull unsigned long long
#define mod 1000000007
ll gcd(ll a, ll b) {
	return!b ? a : gcd(b, a % b);
}
#define fix(n) cout << fixed << setprecision(n);
#define numOfOnes(n) __builtin_popcount(n)
#define all(a) a.begin(), a.end()
#define skip continue
#define stop(n) return cout<<n,0
#define pi  acos(-1)
#define endl "\n"
#define ceil(x,y) (x+y-1)/y
//</DEFINE>
int n;
vector<int>v;
int res[100001];
//<FUNCTIONS>
ll solve(int idx = 0) {
	ll res1, res2;
	if (idx == n - 1)return 0;
	if (~(res[idx]))return res[idx];
	res1 = 1e18;
	if (idx + 2 < n)res1 = solve(idx + 2) + abs(v[idx] - v[idx+2]);
	res2 = solve(idx + 1) + abs(v[idx] - v[idx+1]);
	return res[idx] = min(res1, res2);
}
//</FUNCTIONS>	
int main() {
	Fast()//, File();
	cin >> n;
	for (int i = 0; i <= n; i++)
		res[i] = -1;
	v.resize(n);
	for (int i = 0; i < n; i++)cin >> v[i];
	cout << solve();
}


Compiler output:
a.cc: In function 'int main()':
a.cc:45:15: error: expected ';' before 'cin'
   45 |         Fast()//, File();
      |               ^
      |               ;
   46 |         cin >> n;
      |         ~~~
Language: Java

import java.util.Scanner;

public class FrogP1 {
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] h = new int[n];
        for (int i = 0 ; i < n ; i++) {
            h[i] = in.nextInt();
        }
        if (n == 1) {
            System.out.println(0); return;
        } else if (n == 2) {
            System.out.println(Math.abs(h[1] - h[0]));
            return;
        }
        int[] min = new int[n];
        min[0] = 0;
        min[1] = Math.abs(h[1] - h[0]);
        min[2] = Math.min(min[1] + Math.abs(h[2] - h[1]), Math.abs(h[2] - h[0]));
        for (int i = 3 ; i < n ; i++) {
            min[i] = Math.min(min[i-1] + Math.abs(h[i] - h[i-1]), min[i-2] + Math.abs(h[i] - h[i-2]));
        }
        System.out.println(min[n-1]);
    }
}


Compiler output:
Main.java:3: error: class FrogP1 is public, should be declared in a file named FrogP1.java
public class FrogP1 {
       ^
1 error
Language: C++

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

int main()
{
  ll n ;
  cin>> n ;
  vector <ll> v(n,0) ;
  for(ll i=0;i<n;i++)
  {
    cin>> v[i] ;
  }
  vector <ll> a(n,0) ;
  a[0]=0 ;
  a[1]= abs(v[1]-v[0]) ;
  for(ll i=2;i<n;i++)
  {
   a[i]= min(a[i-1]+abs(v[i]-v[i-1]),a[i-2]+abs(v[i]-v[i-2])) ; 
  }
  cout<< a[n-1] ;
	return 0 ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'll' was not declared in this scope
    7 |   ll n ;
      |   ^~
a.cc:8:9: error: 'n' was not declared in this scope; did you mean 'yn'?
    8 |   cin>> n ;
      |         ^
      |         yn
a.cc:9:13: error: template argument 2 is invalid
    9 |   vector <ll> v(n,0) ;
      |             ^
a.cc:9:20: error: expression list treated as compound expression in initializer [-fpermissive]
    9 |   vector <ll> v(n,0) ;
      |                    ^
a.cc:10:9: error: expected ';' before 'i'
   10 |   for(ll i=0;i<n;i++)
      |         ^~
      |         ;
a.cc:10:14: error: 'i' was not declared in this scope
   10 |   for(ll i=0;i<n;i++)
      |              ^
a.cc:14:13: error: template argument 2 is invalid
   14 |   vector <ll> a(n,0) ;
      |             ^
a.cc:14:20: error: expression list treated as compound expression in initializer [-fpermissive]
   14 |   vector <ll> a(n,0) ;
      |                    ^
a.cc:15:4: error: invalid types 'int[int]' for array subscript
   15 |   a[0]=0 ;
      |    ^
a.cc:16:4: error: invalid types 'int[int]' for array subscript
   16 |   a[1]= abs(v[1]-v[0]) ;
      |    ^
a.cc:16:14: error: invalid types 'int[int]' for array subscript
   16 |   a[1]= abs(v[1]-v[0]) ;
      |              ^
a.cc:16:19: error: invalid types 'int[int]' for array subscript
   16 |   a[1]= abs(v[1]-v[0]) ;
      |                   ^
a.cc:17:9: error: expected ';' before 'i'
   17 |   for(ll i=2;i<n;i++)
      |         ^~
      |         ;
a.cc:17:14: error: 'i' was not declared in this scope
   17 |   for(ll i=2;i<n;i++)
      |              ^
Language: C++

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

int main()
{
  ll n ;
  cin>> n ;
  vector <ll> v(n,0) ;
  for(ll i=0;i<n;i++)
  {
    cin>> v[i] ;
  }
  vector <ll> a(n,0) ;
  a[0]=0 ;
  a[1]= abs(v[1]-v[0]) ;
  for(ll i=2;i<n;i++)
  {
   a[i]= min(a[i-1]+abs(v[i]-v[i-1]),a[i-2]+abs(v[i]-v[i-2])) ; 
  }
  cout<< a[n-1] ;
	return 0 ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'll' was not declared in this scope
    7 |   ll n ;
      |   ^~
a.cc:8:9: error: 'n' was not declared in this scope; did you mean 'yn'?
    8 |   cin>> n ;
      |         ^
      |         yn
a.cc:9:13: error: template argument 2 is invalid
    9 |   vector <ll> v(n,0) ;
      |             ^
a.cc:9:20: error: expression list treated as compound expression in initializer [-fpermissive]
    9 |   vector <ll> v(n,0) ;
      |                    ^
a.cc:10:9: error: expected ';' before 'i'
   10 |   for(ll i=0;i<n;i++)
      |         ^~
      |         ;
a.cc:10:14: error: 'i' was not declared in this scope
   10 |   for(ll i=0;i<n;i++)
      |              ^
a.cc:14:13: error: template argument 2 is invalid
   14 |   vector <ll> a(n,0) ;
      |             ^
a.cc:14:20: error: expression list treated as compound expression in initializer [-fpermissive]
   14 |   vector <ll> a(n,0) ;
      |                    ^
a.cc:15:4: error: invalid types 'int[int]' for array subscript
   15 |   a[0]=0 ;
      |    ^
a.cc:16:4: error: invalid types 'int[int]' for array subscript
   16 |   a[1]= abs(v[1]-v[0]) ;
      |    ^
a.cc:16:14: error: invalid types 'int[int]' for array subscript
   16 |   a[1]= abs(v[1]-v[0]) ;
      |              ^
a.cc:16:19: error: invalid types 'int[int]' for array subscript
   16 |   a[1]= abs(v[1]-v[0]) ;
      |                   ^
a.cc:17:9: error: expected ';' before 'i'
   17 |   for(ll i=2;i<n;i++)
      |         ^~
      |         ;
a.cc:17:14: error: 'i' was not declared in this scope
   17 |   for(ll i=2;i<n;i++)
      |              ^
Language: Java

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int N = in.nextInt();
		int K = in.nextInt();
		int[] h = new int[N];
		for (int i = 0; i < N; i++) {
			h[i] = in.nextInt();
		}
		int[] dp = new int[N];
		Arrays.fill(dp, Integer.MAX_VALUE);
		dp[0] = 0;
		for (int i = 1; i < N; i++) {
			for (int j = Math.max(0, i - K); j < i; j++) {
				if (dp[j] == Integer.MAX_VALUE) continue;
				dp[i] = Math.min(dp[i], dp[j] + Math.abs(h[j] - h[i]));
			}
		}
		System.out.println(dp[N - 1]);
	}
}

Compiler output:
Main.java:3: error: cannot find symbol
		Scanner in = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
		Scanner in = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
Main.java:11: error: cannot find symbol
		Arrays.fill(dp, Integer.MAX_VALUE);
		^
  symbol:   variable Arrays
  location: class Main
3 errors
Language: Java

class Solution{   
private static int helper(int[] nums, int[] cache, int i){

        if(cache[i] != -1)
            return cache[i];
        if(i==0)
            return cache[0] = 0;
        if(i==1)
            return cache[1] = Math.abs(nums[1] - nums[0]);

        cache[i] = Math.min(
            Math.abs(nums[i] - nums[i-1]) + helper(nums, i-1),
            Math.abs(nums[i] - nums[i-2]) + helper(nums, i-2));
        
        return cache[i];
    }

    private static void initCache(int[] cache){
        for(int i = 0; i < cache.length; i++) cache[i] = -1;
    }

    private static int[] retrieveInput(){
        
        Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        String a = in.next();
        String b = in.next();
        String[] str = b.split(" ");
        int[] nums = new int[str.length];
        for(int i = 0; i < nums.length; i++)
            nums[i] = Integer.valueOf(str[i]);
        
        return nums;
    }

    public static void main(String[] args) {
        
        int[] nums = retrieveInput();
        int[] cache = new int[nums.length];
        initCache(cache);

        System.out.println(helper(nums, cache, nums.length-1));
    }
}

Compiler output:
Main.java:12: error: method helper in class Solution cannot be applied to given types;
            Math.abs(nums[i] - nums[i-1]) + helper(nums, i-1),
                                            ^
  required: int[],int[],int
  found:    int[],int
  reason: actual and formal argument lists differ in length
Main.java:13: error: method helper in class Solution cannot be applied to given types;
            Math.abs(nums[i] - nums[i-2]) + helper(nums, i-2));
                                            ^
  required: int[],int[],int
  found:    int[],int
  reason: actual and formal argument lists differ in length
Main.java:24: error: cannot find symbol
        Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
        ^
  symbol:   class Scanner
  location: class Solution
Main.java:24: error: cannot find symbol
        Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
                         ^
  symbol:   class Scanner
  location: class Solution
Main.java:24: error: cannot find symbol
        Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
                                     ^
  symbol:   class BufferedReader
  location: class Solution
Main.java:24: error: cannot find symbol
        Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
                                                        ^
  symbol:   class InputStreamReader
  location: class Solution
6 errors
Language: C

#include<bits/stdc++.h>
using namespace std;   //author: madmin2619/mintu_agarwal
     
#define nfs() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define int long long int
#define endl "\n"
#define pb push_back
#define pf push_front
#define forin(i, n) for(int i=0;i<n;i++)
#define tr(c, it) for(auto it=c.begin();it!=c.end();it++)
#define sz(c) c.size()
#define all(c) c.begin(),c.end()
#define ff first
#define ss second
#define m_p(x, y) make_pair(x, y)
     
const int M = 1e9 + 7;
     
int32_t main(){
    nfs()
    int t, n, i, j, k;
    cin >> n;
    vector<int> h(n);
    forin(i, n)	cin >> h[i];
    vector<int> dp(n, M);
    dp[0]=0;
    dp[1]=abs(h[1]-h[0]);
    for(i=2;i<n;i++){
    	dp[i]=min(dp[i], dp[i-1]+abs(h[i]-h[i-1]));
    	dp[i]=min(dp[i], dp[i-2]+abs(h[i]-h[i-2]));
    }
    cout << dp[n-1] << "\n";
    return 0;
}

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

#include <bits/stdc++.h>

using namespace std;

int N;
int h[10010];
int dp[100005];

int solve(int idx)
{
    int &ret = dp[idx];
    if(~ret)
        return ret;
    ret = 0;
    if(idx<=N-2)
        ret = abs(h[idx+1]-h[idx])+solve(idx+1);
    if(idx<=N-3)
        ret = min(ret,abs(h[idx+2]-h[idx])+solve(idx+2));
    return ret;
}



int main()
{
    fastio
    #ifndef ONLINE_JUDGE
        //freopen("input.txt","r",stdin);
        //freopen("out.txt","w",stdout);
    #endif

    memset(dp , -1 , sizeof(dp));
    cin>>N;
    for(int i=0; i<N; i++)
    {
        cin>>h[i];
    }

    cout<<solve(0);

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:5: error: 'fastio' was not declared in this scope
   26 |     fastio
      |     ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
	int n;
  	cin >> n;
  	int a[n], dp[n];
  	for(int i=0; i<n;++i ) cin >> a[i];
  	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 ] ;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:32: error: 'h' was not declared in this scope
    8 |         dp[0]= 0 , dp[1] = abs(h[1]- h[0] ) ;
      |                                ^