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


using namespace std;

int Recursion(int arr[],int n)
{
	if(n==0)
		return 0;
	if(n==1)
		return abs(arr[n]-arr[n-1]);
	int k=n-1;
	if(abs(arr[n]-arr[n-1]) > abs(arr[n]-arr[n-2]))
	{
		k=n-2;
	}
	cout<<k<<" "<<abs(arr[n]-arr[k])<<endl;
	return abs(arr[n]-arr[k])+Recursion(arr,k);
}

int main()
{
	#ifndef ONLINE_JUDGE
	freopen("input1.txt","r",stdin);
	freopen("output1.txt","w",stdout);
	#endif
	int n;
	cin>>n;
	int arr[n];
	int i=0;
	for(i=0;i<n;i++)
	{
		cin>>arr[i];
	}	
	// int z = my_sizeof(arr)/my_sizeof(arr[0]); 
	
	cout<<Recursion(arr,n-1)<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'int Recursion(int*, int)':
a.cc:9:24: error: 'abs' was not declared in this scope
    9 |                 return abs(arr[n]-arr[n-1]);
      |                        ^~~
a.cc:11:12: error: 'abs' was not declared in this scope
   11 |         if(abs(arr[n]-arr[n-1]) > abs(arr[n]-arr[n-2]))
      |            ^~~
a.cc:15:9: error: 'cout' was not declared in this scope
   15 |         cout<<k<<" "<<abs(arr[n]-arr[k])<<endl;
      |         ^~~~
a.cc:1:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | 
a.cc:15:23: error: 'abs' was not declared in this scope
   15 |         cout<<k<<" "<<abs(arr[n]-arr[k])<<endl;
      |                       ^~~
a.cc:15:43: error: 'endl' was not declared in this scope
   15 |         cout<<k<<" "<<abs(arr[n]-arr[k])<<endl;
      |                                           ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | 
a.cc: In function 'int main()':
a.cc:22:34: error: 'stdin' was not declared in this scope
   22 |         freopen("input1.txt","r",stdin);
      |                                  ^~~~~
a.cc:1:1: note: 'stdin' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | 
a.cc:22:9: error: 'freopen' was not declared in this scope
   22 |         freopen("input1.txt","r",stdin);
      |         ^~~~~~~
a.cc:23:35: error: 'stdout' was not declared in this scope
   23 |         freopen("output1.txt","w",stdout);
      |                                   ^~~~~~
a.cc:23:35: note: 'stdout' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
a.cc:26:9: error: 'cin' was not declared in this scope
   26 |         cin>>n;
      |         ^~~
a.cc:26:9: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:35:9: error: 'cout' was not declared in this scope
   35 |         cout<<Recursion(arr,n-1)<<endl;
      |         ^~~~
a.cc:35:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:35:35: error: 'endl' was not declared in this scope
   35 |         cout<<Recursion(arr,n-1)<<endl;
      |                                   ^~~~
a.cc:35:35: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

#include <bits/stdc++.h>
#define maxx 1e9
using namespace std;
int x,arr[maxx],dp[maxx];

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

Compiler output:
a.cc:2:14: error: conversion from 'double' to 'long unsigned int' in a converted constant expression
    2 | #define maxx 1e9
      |              ^~~
a.cc:4:11: note: in expansion of macro 'maxx'
    4 | int x,arr[maxx],dp[maxx];
      |           ^~~~
a.cc:2:14: error: could not convert '1.0e+9' from 'double' to 'long unsigned int'
    2 | #define maxx 1e9
      |              ^~~
      |              |
      |              double
a.cc:4:11: note: in expansion of macro 'maxx'
    4 | int x,arr[maxx],dp[maxx];
      |           ^~~~
a.cc:2:14: error: size of array 'arr' has non-integral type 'double'
    2 | #define maxx 1e9
      |              ^~~
a.cc:4:11: note: in expansion of macro 'maxx'
    4 | int x,arr[maxx],dp[maxx];
      |           ^~~~
a.cc:2:14: error: conversion from 'double' to 'long unsigned int' in a converted constant expression
    2 | #define maxx 1e9
      |              ^~~
a.cc:4:20: note: in expansion of macro 'maxx'
    4 | int x,arr[maxx],dp[maxx];
      |                    ^~~~
a.cc:2:14: error: could not convert '1.0e+9' from 'double' to 'long unsigned int'
    2 | #define maxx 1e9
      |              ^~~
      |              |
      |              double
a.cc:4:20: note: in expansion of macro 'maxx'
    4 | int x,arr[maxx],dp[maxx];
      |                    ^~~~
a.cc:2:14: error: size of array 'dp' has non-integral type 'double'
    2 | #define maxx 1e9
      |              ^~~
a.cc:4:20: note: in expansion of macro 'maxx'
    4 | int x,arr[maxx],dp[maxx];
      |                    ^~~~
Language: Java


//package cf;
import java.io.*;
import java.util.*;
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;
public class main {
    static int p=1000000007;
    static int dp[]=new int[100000];
    public static void main(String[] args) throws Exception{
        BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(java.io.FileDescriptor.out), "ASCII"), 512);
        FastReader sc=new FastReader();
        int tc=sc.nextInt();
        int ar[]=new int[tc];
        for(int i=0;i<tc;i++)
            ar[i]=sc.nextInt();
        int dp1[]=new int[tc];
        dp1[0]=0;
        //dp1[1]=Math.abs(ar[1]-ar[0]);
        for(int i=1;i<tc;i++)
        {
            dp1[i]=Math.min((Math.abs(ar[i]-ar[i-1]))+dp1[i-1],i-2<0?Integer.MAX_VALUE:(Math.abs(ar[i]-ar[i-2])+dp1[i-2]));
        }
      //  System.out.println(Arrays.toString(dp1));

        //Arrays.fill(dp,-1);

        //System.out.println(frog(ar,0)+" "+Arrays.toString(dp));

        out.write(dp1[tc-1]+"");
        out.flush();
    }
    public static  int frog(int ar[],int i)
    {
        if(i==ar.length-1)
            return 0;
        if(i>=ar.length)
            return Integer.MAX_VALUE;
        if(dp[i]!=-1)
            return dp[i];

        int r1=Math.abs(ar[i]-ar[i+1])+frog(ar,i+1);
        int r2=i+2>=ar.length?Integer.MAX_VALUE:(Math.abs(ar[i]-ar[i+2])+frog(ar,i+2));

            dp[i]=Math.min(r1,r2);
            //System.out.println(i+" "+dp[i]+" "+frog(ar,i+1));
            return dp[i];
    }






///////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////
    static class FastReader {

        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }


}


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

    #include<bits/stdc++.h>
     
    using namespace std;
     
    int inf = 1000000007
    int n;
    int h[101010];
     
    int dp[101010];
     
    int f(int n) {
      if (n < 1) return inf;
      if (n == 1) return 0;
      
      if (dp[n] != -1) return dp[n];
      dp[n] = min(f(n-1) + abs(h[n] - h[n-1]), f(n-2) + abs(h[n] - h[n-2]));
      return dp[n];
      
    }
     
    int main() {
      	memset(dp, -1, sizeof(dp));
      
      	cin >> n;
      	for(int i = 1; i <= n; i++) cin >> h[i];
      
      	cout << f(n);
      
     	return 0; 
    }

Compiler output:
a.cc:6:5: error: expected ',' or ';' before 'int'
    6 |     int n;
      |     ^~~
a.cc: In function 'int main()':
a.cc:24:16: error: 'n' was not declared in this scope; did you mean 'yn'?
   24 |         cin >> n;
      |                ^
      |                yn
Language: C++

#include<bits/stdc++.h>

using namespace std;

int inf = 1000000007
int n;
int h[101010];

int dp[101010];

int f(int n) {
  if (n < 1) return inf;
  if (n == 1) return 0;
  
  if (dp[n] != -1) return dp[n];
  dp[n] = min(f(n-1) + abs(h[n] - h[n-1]), f(n-2) + abs(h[n] - h[n-2]));
  return dp[n];
  
}

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

Compiler output:
a.cc:6:1: error: expected ',' or ';' before 'int'
    6 | int n;
      | ^~~
a.cc: In function 'int main()':
a.cc:22:35: error: expected ';' before 'cin'
   22 |         memset(dp, -1, sizeof(dp))
      |                                   ^
      |                                   ;
   23 | 
   24 |         cin >> n;
      |         ~~~                        
a.cc:25:29: error: 'n' was not declared in this scope
   25 |         for(int i = 1; i <= n; i++) cin >> h[i];
      |                             ^
a.cc:27:19: error: 'n' was not declared in this scope; did you mean 'yn'?
   27 |         cout << f(n);
      |                   ^
      |                   yn
Language: C++

#define rep(i, n) for(ll i = 0; i < (int)(n); i++)
#define int long long
#define ll long long
using namespace std;
int dp[1000010];
int n,h[100010];
signed main(){
    cin>>n;
    rep(i,n){
        cin>>h[i];
    }
    rep(i,n){
        if(i==0)dp[0]=0;
        else if(i==1)dp[1]=abs(h[1]-h[0]);
        else{
            dp[i]=min(dp[i-2]+abs(h[i]-h[i-2]),dp[i-1]+abs(h[i]-h[i-1]));
        }
    }
    cout<<dp[n-1]<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'cin' was not declared in this scope
    8 |     cin>>n;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #define rep(i, n) for(ll i = 0; i < (int)(n); i++)
a.cc:14:28: error: 'abs' was not declared in this scope
   14 |         else if(i==1)dp[1]=abs(h[1]-h[0]);
      |                            ^~~
a.cc:16:31: error: 'abs' was not declared in this scope
   16 |             dp[i]=min(dp[i-2]+abs(h[i]-h[i-2]),dp[i-1]+abs(h[i]-h[i-1]));
      |                               ^~~
a.cc:16:19: error: 'min' was not declared in this scope; did you mean 'main'?
   16 |             dp[i]=min(dp[i-2]+abs(h[i]-h[i-2]),dp[i-1]+abs(h[i]-h[i-1]));
      |                   ^~~
      |                   main
a.cc:19:5: error: 'cout' was not declared in this scope
   19 |     cout<<dp[n-1]<<endl;
      |     ^~~~
a.cc:19:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:19:20: error: 'endl' was not declared in this scope
   19 |     cout<<dp[n-1]<<endl;
      |                    ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #define rep(i, n) for(ll i = 0; i < (int)(n); i++)
Language: C++

#include <iostream>
using namespace std;
int ab(int a, int b)
{ if(a >= b) return a-b;
  else return b-a; }
int main()
{  int n, a[100000];
  cin >> n;
  for(int i=1; i<=n; i++)
   cin >> a[i];
  int dp[n];
  dp[0]=0; dp[1]=0; dp[2]=ab(a[2], a[1]); 
  for(int i=3; i<=n; i++)
  {
     dp[i] = min(dp[i-1] + ab(a[i], a[i-1]), dp[i-2] + ab(a[i], a[i-2]);
     }
     cout << dp[n] << endl;
     }


Compiler output:
a.cc: In function 'int main()':
a.cc:15:72: error: expected ')' before ';' token
   15 |      dp[i] = min(dp[i-1] + ab(a[i], a[i-1]), dp[i-2] + ab(a[i], a[i-2]);
      |                 ~                                                      ^
      |                                                                        )
Language: C++

#include <iostream>
using namespace std
int ab(int a, int b)
{ if(a >= b) return a-b;
  else return b-a; }
int main()
{  int n, a[100000];
  cin >> n;
  for(int i=1; i<=n; i++)
   cin >> a[i];
  int dp[n];
  dp[0]=0; dp[1]=0; dp[2]=ab(a[i], a[i-1]); 
  for(int i=3; i<=n; i++)
  {
     dp[i] = min(dp[i-1] + ab(a[i], a[i-1]), dp[i-2] + ab(a[i], a[i-2]);
     }
     cout << dp[n] << endl;
     }

Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | int ab(int a, int b)
      | ~~~                 
a.cc: In function 'int main()':
a.cc:12:32: error: 'i' was not declared in this scope
   12 |   dp[0]=0; dp[1]=0; dp[2]=ab(a[i], a[i-1]);
      |                                ^
a.cc:15:72: error: expected ')' before ';' token
   15 |      dp[i] = min(dp[i-1] + ab(a[i], a[i-1]), dp[i-2] + ab(a[i], a[i-2]);
      |                 ~                                                      ^
      |                                                                        )
Language: Java


//package cf;
import java.io.*;
import java.util.*;
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;
public class atcoder1 {
    static int p=1000000007;
    static int dp[]=new int[100000];
    public static void main(String[] args) throws Exception{
        BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(java.io.FileDescriptor.out), "ASCII"), 512);
        FastReader sc=new FastReader();
        int tc=sc.nextInt();
        int ar[]=new int[tc];
        for(int i=0;i<tc;i++)
            ar[i]=sc.nextInt();

        Arrays.fill(dp,-1);

        //System.out.println(frog(ar,0)+" "+Arrays.toString(dp));

        out.write(""+((frog(ar,0))));
        out.flush();
    }
    public static  int frog(int ar[],int i)
    {
        if(i==ar.length-1)
            return 0;
        if(i>=ar.length)
            return Integer.MAX_VALUE;
        if(dp[i]!=-1)
            return dp[i];

        int r1=Math.abs(ar[i]-ar[i+1])+frog(ar,i+1);
        int r2=i+2>=ar.length?Integer.MAX_VALUE:(Math.abs(ar[i]-ar[i+2])+frog(ar,i+2));

            dp[i]=Math.min(r1,r2);
            //System.out.println(i+" "+dp[i]+" "+frog(ar,i+1));
            return dp[i];
    }






    ///////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////
    static class FastReader {

        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }


}


Compiler output:
Main.java:11: error: class atcoder1 is public, should be declared in a file named atcoder1.java
public class atcoder1 {
       ^
1 error
Language: Java


//package cf;
import java.io.*;
import java.util.*;
public class atcoder1 {
    static int p=1000000007;
    static int dp[]=new int[100000];
    public static void main(String[] args) throws Exception{
        BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(java.io.FileDescriptor.out), "ASCII"), 512);
        FastReader sc=new FastReader();
        int tc=sc.nextInt();
        int ar[]=new int[tc];
        for(int i=0;i<tc;i++)
            ar[i]=sc.nextInt();

        Arrays.fill(dp,-1);

        //System.out.println(frog(ar,0)+" "+Arrays.toString(dp));

        out.write(""+((frog(ar,0))));
        out.flush();
    }
    public static  int frog(int ar[],int i)
    {
        if(i==ar.length-1)
            return 0;
        if(i>=ar.length)
            return Integer.MAX_VALUE;
        if(dp[i]!=-1)
            return dp[i];

        int r1=Math.abs(ar[i]-ar[i+1])+frog(ar,i+1);
        int r2=i+2>=ar.length?Integer.MAX_VALUE:(Math.abs(ar[i]-ar[i+2])+frog(ar,i+2));

            dp[i]=Math.min(r1,r2);
            //System.out.println(i+" "+dp[i]+" "+frog(ar,i+1));
            return dp[i];
    }






    ///////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////
    static class FastReader {

        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }


}


Compiler output:
Main.java:5: error: class atcoder1 is public, should be declared in a file named atcoder1.java
public class atcoder1 {
       ^
1 error
Language: C++

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

#define ll long long

ll n = 0;
ll a[1000009] = 0;
ll b[100009] = 0;
ll c[1000009] = 0;
ll dp[100009];

ll solve(int i,int prev)
{
    if(i == n)
        return 0;

    ll ans;
    ans = INT_MIN;

    if(dp[i] != -1)
        return dp[i];

    if(prev == 0)
    {
        ans = max(b[i] + solve(i+1,1),ans);
        ans = max(c[i] + solve(i+1,2),ans);
    }

   else if(prev == 1)
    {
        ans = max(a[i] + solve(i+1,0),ans);
        ans = max(c[i] + solve(i+1,2),ans);
    }

    else if(prev == 2)
    {
        ans = max(a[i] + solve(i+1,0),ans);
        ans = max(b[i] + solve(i+1,1),ans);
    }
    else
    {
        ans = max(a[i] + solve(i+1,0),ans);
        ans = max(b[i] + solve(i+1,1),ans);
        ans = max(c[i] + solve(i+1,2),ans);
    }
    return dp[i] = ans;
}



int main()
{
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
        cin>>b[i];
        cin>>c[i];
    }
    memset(dp,-1,sizeof(dp));
    cout<<"\n"<<solve(0,3);
    return 0;

}


Compiler output:
a.cc:9:17: error: array must be initialized with a brace-enclosed initializer
    9 | ll a[1000009] = 0;
      |                 ^
a.cc:10:16: error: array must be initialized with a brace-enclosed initializer
   10 | ll b[100009] = 0;
      |                ^
a.cc:11:17: error: array must be initialized with a brace-enclosed initializer
   11 | ll c[1000009] = 0;
      |                 ^
Language: C++

https://t.me/proxy?server=116.203.74.157&port=543&secret=7tUjYJ3_tQEXFDECBbw2qJB3d3ctY2RuLndoYXRzYXBwLm5ldA

Compiler output:
a.cc:1:1: error: 'https' does not name a type
    1 | https://t.me/proxy?server=116.203.74.157&port=543&secret=7tUjYJ3_tQEXFDECBbw2qJB3d3ctY2RuLndoYXRzYXBwLm5ldA
      | ^~~~~
Language: C++

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

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

int main()
{
  int n;
  int k;
  cin>>n;
  cin>>k;
  vector<int> nums(n);
  for(int i=0;i<n;i++)
  {
    int x;
    cin>>x;
    nums[i]=x;
  }
    vector<int> dp(n,0);
    dp[0]=0;
    dp[1]=abs(nums[0]-nums[1]);
    for(int i=2;i<n;i++)
    {  
      dp[i]=INT_MAX;
  		for(int j=1;(i-j)>=0 && (i-j)<=k;j++)
          dp[i]=min(dp[i],dp[i-j]+abs(nums[i]-nums[i-j]));
    }
    cout<<dp[n-1]<<endl;
  return 0;
}

Compiler output:
a.cc:21:25: error: stray '#' in program
   21 |     for(int i=2;i<n;i++)#include<bits/stdc++.h>
      |                         ^
a.cc: In function 'int main()':
a.cc:21:26: error: 'include' was not declared in this scope
   21 |     for(int i=2;i<n;i++)#include<bits/stdc++.h>
      |                          ^~~~~~~
a.cc:21:34: error: 'bits' was not declared in this scope
   21 |     for(int i=2;i<n;i++)#include<bits/stdc++.h>
      |                                  ^~~~
a.cc:21:39: error: 'stdc' was not declared in this scope; did you mean 'std'?
   21 |     for(int i=2;i<n;i++)#include<bits/stdc++.h>
      |                                       ^~~~
      |                                       std
a.cc:23:1: error: expected primary-expression before 'using'
   23 | using namespace std;
      | ^~~~~
a.cc:25:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   25 | int main()
      |         ^~
a.cc:25:9: note: remove parentheses to default-initialize a variable
   25 | int main()
      |         ^~
      |         --
a.cc:25:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:26:1: error: a function-definition is not allowed here before '{' token
   26 | {
      | ^
a.cc:49:2: error: expected '}' at end of input
   49 | }
      |  ^
a.cc:6:1: note: to match this '{'
    6 | {
      | ^
Language: C++

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

int main()
{
  int n;
  int k;
  cin>>n;
  cin>>k;
  vector<int> nums(n);
  for(int i=0;i<n;i++)
  {
    int x;
    cin>>x;
    nums[i]=x;
  }
    vector<int> dp(n,0);
    dp[0]=0;
    dp[1]=abs(nums[0]-nums[1]);
    for(int i=2;i<n;i++)
    {  
      dp[i]=INT_MAX;
  		for(int j=1;j<=k && (i-j)>=0 && && (i-j)<=k;j++)
          dp[i]=min(dp[i],dp[i-j]+abs(nums[i]-nums[i-j]));
    }
    cout<<dp[n-1]<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:52: error: expected identifier before '(' token
   24 |                 for(int j=1;j<=k && (i-j)>=0 && && (i-j)<=k;j++)
      |                                                    ^
a.cc:24:51: error: expected ';' before '(' token
   24 |                 for(int j=1;j<=k && (i-j)>=0 && && (i-j)<=k;j++)
      |                                                   ^~
      |                                                   ;
a.cc:24:60: error: expected ')' before ';' token
   24 |                 for(int j=1;j<=k && (i-j)>=0 && && (i-j)<=k;j++)
      |                    ~                                       ^
      |                                                            )
a.cc:24:61: error: 'j' was not declared in this scope
   24 |                 for(int j=1;j<=k && (i-j)>=0 && && (i-j)<=k;j++)
      |                                                             ^
Language: C++

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

int main(){
  int n;cin >> n;
  int h[n];rep(i,n)cin >> h[i];
  int dp[n+1];
  dp[0] = 0;
  dp[1] = abs(h[1]-h[0]);
  for(int i=2;i<n;++i){
    dp[i] = min(abs(h[i]-h[i-1]) + dp[i-1],abs(h[i]-h[i-2]) + dp[i-2]);
  }
  cout << dp[n-1] << endl;
  return 0;
}
#include<bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(n);++i)
using namespace std;
typedef long long ll;

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


Compiler output:
a.cc:23:5: error: redefinition of 'int main()'
   23 | int main(){
      |     ^~~~
a.cc:6:5: note: 'int main()' previously defined here
    6 | int main(){
      |     ^~~~
Language: C++

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

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue<bits/stdc++.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin>>n;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incldue<bits/stdc++.h>
a.cc:14:12: error: 'abs' was not declared in this scope
   14 |       sum+=abs(a[i+1]-a[i]);
      |            ^~~
a.cc:17:12: error: 'abs' was not declared in this scope
   17 |       sum+=abs(a[i+2]-a[i]);
      |            ^~~
a.cc:21:3: error: 'cout' was not declared in this scope
   21 |   cout<<sum;
      |   ^~~~
a.cc:21:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: Java

import java.util.*;

public class Frog1 {
    public static long solve(int arr[], int n) {
        long ans[] = new long[n + 1];

        ans[1] = 0;
        ans[2] = Math.abs(arr[1] - arr[2]);

        for (int i = 3; i <= n; i++) {
            ans[i] = Math.min(Math.abs(arr[i] - arr[i - 1]) + ans[i - 1], Math.abs(arr[i] - arr[i - 2]) + ans[i - 2]);
        }

        return ans[n];
    }

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

        int arr[] = new int[n + 1];
        for (int i = 1; i <= n; i++) {
            arr[i] = sc.nextInt();
        }
        System.out.println(solve(arr, n));
    }
}

Compiler output:
Main.java:3: error: class Frog1 is public, should be declared in a file named Frog1.java
public class Frog1 {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
    ll n,k;
    cin>>n;
    ll h[n];
    k=2;
    for(ll i=0;i<n;i++){
        cin>>h[i];
    }
    ll dp[n];
    memset(dp,1e9+5,sizeof(dp));
    dp[0]=0;
    for(ll i=0;i<n;i++){
        for(ll j=i+1;j<=i+k;j++){
            if(j<n){
                dp[j]=min(dp[j],dp[i]+abs(h[j]-h[i]));
            }
        }
    }
    cout<<dp[n-1]<<endl;


Compiler output:
a.cc: In function 'int main()':
a.cc:23:25: error: expected '}' at end of input
   23 |     cout<<dp[n-1]<<endl;
      |                         ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: Java

import java.util.Scanner;
import java.util.Arrays;
public class Main1 {
        public static void main(String[] args) {
                Scanner scanner = new Scanner(System.in);
                int N = Integer.parseInt(scanner.nextLine());
                int[] costs = new int[N];
                int[] cache = new int[N];
                String[] c = scanner.nextLine().split(" ");
                for(int i = 0 ; i < N ; i++) {
                        costs[i] = Integer.parseInt(c[i]);
                        cache[i] = 1000000;
                }
                cache[0] = 0;
                //cache[1] = Math.abs(costs[1] - costs[0]);
                System.out.println(jump(costs, 2, cache));
                return;
        }
        private static int jump(int[] costs, int k, int[] cache) {
                for(int i = 0 ; i < costs.length ; i++) {
                        // for every i - check the next k cells and update if the cost from current cell is better.
                        for(int j = i-1 ; j >= i-k ; j--) {
                                //ith cell of cache will have min of i-jth cell + its cost from coming there.
                                // if it has already lower value, lets keep that as is.
                                if(j >= 0)
                                        cache[j] = Math.min(cache[i], cache[j]+Math.abs(costs[j] - costs[i]));
                        }
                        //System.out.println(Arrays.toString(cache));
                }
                return cache[costs.length-1];
        }
}

Compiler output:
Main.java:3: error: class Main1 is public, should be declared in a file named Main1.java
public class Main1 {
       ^
1 error
Language: Java

import java.util.Arrays;
public class Main {
        public static void main(String[] args) {
                Scanner scanner = new Scanner(System.in);
                int N = Integer.parseInt(scanner.nextLine());
                int[] costs = new int[N];
                int[] cache = new int[N];
                String[] c = scanner.nextLine().split(" ");
                for(int i = 0 ; i < N ; i++) {
                        costs[i] = Integer.parseInt(c[i]);
                        cache[i] = 1000000;
                }
                cache[0] = 0;
                //cache[1] = Math.abs(costs[1] - costs[0]);
                System.out.println(jump(costs, 2, cache));
                return;
        }
        private static int jump(int[] costs, int k, int[] cache) {
                for(int i = 0 ; i < costs.length ; i++) {
                        // for every i - check the next k cells and update if the cost from current cell is better.
                        for(int j = i-1 ; j >= i-k ; j--) {
                                //ith cell of cache will have min of i-jth cell + its cost from coming there.
                                // if it has already lower value, lets keep that as is.
                                if(j >= 0)
                                        cache[j] = Math.min(cache[i], cache[j]+Math.abs(costs[j] - costs[i]));
                        }
                        //System.out.println(Arrays.toString(cache));
                }
                return cache[costs.length-1];
        }
}

Compiler output:
Main.java:4: error: cannot find symbol
                Scanner scanner = new Scanner(System.in);
                ^
  symbol:   class Scanner
  location: class Main
Main.java:4: error: cannot find symbol
                Scanner scanner = new Scanner(System.in);
                                      ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mx = LLONG_MAX;

int main(){
int n;
vector<ll> h, dp;
cin>>n;
h.resize(n);
dp.resize(n);
for(int i=0;i<n;i++){
cin>>h[i];
}
int dp[n];
dp[0]=0;
dp[1]=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]));
}
ll res=dp[n-1];
cout<<res<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:5: error: conflicting declaration 'int dp [n]'
   15 | int dp[n];
      |     ^~
a.cc:8:15: note: previous declaration as 'std::vector<long long int> dp'
    8 | vector<ll> h, dp;
      |               ^~
Language: C++

#include<iostream>
#include<iomanip>
#include<math>
#include<string>

using namespace std;

#define IOS ios_base::sync_with_stdio(false); cin.tie(NULL)
#define ll long long
#define INF 1000000007
#define ull unsigned long long
#define PI 3.141592653589793238
#define pb push_back
#define max3(x, y, z) Max(x, Max(y, z))
#define min3(x, y, z) Min(x, Min(y, z))
#define mp make_pair
#define pre(a,b) cout << fixed << setprecision(a) << b  //a for precision b for answer
#define MAX 1e18
#define all(x) (x).begin(), (x).end()
#define lb lower_bound //lower_bound(first_iterator, last_iterator, x) – returns an iterator pointing to the first element in the range [first,last) which has a value not less than ‘x’.
#define ub upper_bound //upper_bound(first_iterator, last_iterator, x) – returns an iterator pointing to the first element in the range [first,last) which has a value greater than ‘x’.
#define maxe *max_element
#define mine *min_element
#define acc(x) accumulate(x.begin(), x.end(), 0)
#define dst distance
#define sz(x) (int)x.size()

template <typename T>
inline T const& Max (T const& a, T const& b)
{ 
	return a < b ? b:a; 
}

template <typename T>
inline T const& Min (T const& a, T const& b) { 
   return a < b ? a:b; 
}

ll power(ll x, ll y) 
{ 
    if (y == 0) 
        return 1; 
    else if (y % 2 == 0) 
        return power(x, y / 2) * power(x, y / 2); 
    else
        return x * power(x, y / 2) * power(x, y / 2); 
}

ll SieveOfEratosthenes(int n) 
{  
    bool prime[n+1]; 
    memset(prime, true, sizeof(prime)); 
  
    for (int p=2; p*p<=n; p++) 
    {  
        if (prime[p] == true) 
        {   
            for (int i=p*p; i<=n; i += p) 
                prime[i] = false; 
        } 
    } 
  
    // Print all prime numbers 
    /*for (int p=2; p<=n; p++) 
       if (prime[p]) 
          cout << p << " "; */
    return prime[n + 1];
}

int main()
{
	IOS;
    int n;
    cin >> n;
    int h[n];
    for (int i = 0; i < n; i++)
    {
        cin >> h[i];
    }	
    int 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] << '\n';
	return 0;
}


Compiler output:
a.cc:3:9: fatal error: math: No such file or directory
    3 | #include<math>
      |         ^~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<iomanip>
#include<conio>
#include<math>
#include<string>

using namespace std;

#define IOS ios_base::sync_with_stdio(false); cin.tie(NULL)
#define ll long long
#define INF 1000000007
#define ull unsigned long long
#define PI 3.141592653589793238
#define pb push_back
#define max3(x, y, z) Max(x, Max(y, z))
#define min3(x, y, z) Min(x, Min(y, z))
#define mp make_pair
#define pre(a,b) cout << fixed << setprecision(a) << b  //a for precision b for answer
#define MAX 1e18
#define all(x) (x).begin(), (x).end()
#define lb lower_bound //lower_bound(first_iterator, last_iterator, x) – returns an iterator pointing to the first element in the range [first,last) which has a value not less than ‘x’.
#define ub upper_bound //upper_bound(first_iterator, last_iterator, x) – returns an iterator pointing to the first element in the range [first,last) which has a value greater than ‘x’.
#define maxe *max_element
#define mine *min_element
#define acc(x) accumulate(x.begin(), x.end(), 0)
#define dst distance
#define sz(x) (int)x.size()

template <typename T>
inline T const& Max (T const& a, T const& b)
{ 
	return a < b ? b:a; 
}

template <typename T>
inline T const& Min (T const& a, T const& b) { 
   return a < b ? a:b; 
}

ll power(ll x, ll y) 
{ 
    if (y == 0) 
        return 1; 
    else if (y % 2 == 0) 
        return power(x, y / 2) * power(x, y / 2); 
    else
        return x * power(x, y / 2) * power(x, y / 2); 
}

ll SieveOfEratosthenes(int n) 
{  
    bool prime[n+1]; 
    memset(prime, true, sizeof(prime)); 
  
    for (int p=2; p*p<=n; p++) 
    {  
        if (prime[p] == true) 
        {   
            for (int i=p*p; i<=n; i += p) 
                prime[i] = false; 
        } 
    } 
  
    // Print all prime numbers 
    /*for (int p=2; p<=n; p++) 
       if (prime[p]) 
          cout << p << " "; */
    return prime[n + 1];
}

int main()
{
	IOS;
    int n;
    cin >> n;
    int h[n];
    for (int i = 0; i < n; i++)
    {
        cin >> h[i];
    }	
    int 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] << '\n';
	return 0;
}


Compiler output:
a.cc:3:9: fatal error: conio: No such file or directory
    3 | #include<conio>
      |         ^~~~~~~
compilation terminated.
Language: C++

#include<iostream.h>
#include<iomanip.h>
#include<conio.h>
#include<math.h>
#include<string.h>

using namespace std;

#define IOS ios_base::sync_with_stdio(false); cin.tie(NULL)
#define ll long long
#define INF 1000000007
#define ull unsigned long long
#define PI 3.141592653589793238
#define pb push_back
#define max3(x, y, z) Max(x, Max(y, z))
#define min3(x, y, z) Min(x, Min(y, z))
#define mp make_pair
#define pre(a,b) cout << fixed << setprecision(a) << b  //a for precision b for answer
#define MAX 1e18
#define all(x) (x).begin(), (x).end()
#define lb lower_bound //lower_bound(first_iterator, last_iterator, x) – returns an iterator pointing to the first element in the range [first,last) which has a value not less than ‘x’.
#define ub upper_bound //upper_bound(first_iterator, last_iterator, x) – returns an iterator pointing to the first element in the range [first,last) which has a value greater than ‘x’.
#define maxe *max_element
#define mine *min_element
#define acc(x) accumulate(x.begin(), x.end(), 0)
#define dst distance
#define sz(x) (int)x.size()

template <typename T>
inline T const& Max (T const& a, T const& b)
{ 
	return a < b ? b:a; 
}

template <typename T>
inline T const& Min (T const& a, T const& b) { 
   return a < b ? a:b; 
}

ll power(ll x, ll y) 
{ 
    if (y == 0) 
        return 1; 
    else if (y % 2 == 0) 
        return power(x, y / 2) * power(x, y / 2); 
    else
        return x * power(x, y / 2) * power(x, y / 2); 
}

ll SieveOfEratosthenes(int n) 
{  
    bool prime[n+1]; 
    memset(prime, true, sizeof(prime)); 
  
    for (int p=2; p*p<=n; p++) 
    {  
        if (prime[p] == true) 
        {   
            for (int i=p*p; i<=n; i += p) 
                prime[i] = false; 
        } 
    } 
  
    // Print all prime numbers 
    /*for (int p=2; p<=n; p++) 
       if (prime[p]) 
          cout << p << " "; */
    return prime[n + 1];
}

int main()
{
	IOS;
    int n;
    cin >> n;
    int h[n];
    for (int i = 0; i < n; i++)
    {
        cin >> h[i];
    }	
    int 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] << '\n';
	return 0;
}


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

#include <iostream>
#include <climits>
#include <cstring>
int n, arr[100005], dp[100005];

int frog(int i)
{
    if (i == n - 1)
        return 0;
    if (i >= n)
        return INT_MAX;
    if (dp[i] != -1)
        return dp[i];   
    int left = abs(arr[i] - arr[i + 1]) + frog(i + 1);
    int right;
    if (i + 2 < n)
    {
        right = abs(arr[i] - arr[i + 2]) + frog(i + 2);
    }

    return dp[i] min(left, right);
}

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

    return 0;
}

Compiler output:
a.cc: In function 'int frog(int)':
a.cc:21:17: error: expected ';' before 'min'
   21 |     return dp[i] min(left, right);
      |                 ^~~~
      |                 ;
a.cc:21:18: error: 'min' was not declared in this scope; did you mean 'std::min'?
   21 |     return dp[i] min(left, right);
      |                  ^~~
      |                  std::min
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: 'std::min' declared here
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
a.cc: In function 'int main()':
a.cc:26:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   26 |     cin >> n;
      |     ^~~
      |     std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:32:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   32 |     cout << frog(0);
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
    int n;
    scanf("%d", &n);
    vector<int> h(n);
    for(int& x : h) {
        scanf("%d", &x);
    }
    vector<int> dp(n, INF);
    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]));
            }
        }
    }
    printf("%d\n", dp[n-1]);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:23: error: 'INF' was not declared in this scope
   10 |     vector<int> dp(n, INF);
      |                       ^~~
Language: Java

package compilers;

import java.util.Scanner;

public class Atcoderdp1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in=new Scanner(System.in);
		int n=in.nextInt();
		int []arr=new int[n];
		int []dp= new int[n];
		for(int i=0;i<n;i++)
			arr[i]=in.nextInt();
		dp[0]=0;
		for(int i=1;i<n;i++) {
			if(i-2>=0) {
				dp[i]=Math.min(dp[i-1]+Math.abs(arr[i]-arr[i-1]),dp[i-2]+Math.abs(arr[i]-arr[i-2]));
			}
			else
				dp[i]=dp[i-1]+Math.abs(arr[i]-arr[i-1]);
		}
		System.out.println(dp[n-1]);
	}

}


Compiler output:
Main.java:5: error: class Atcoderdp1 is public, should be declared in a file named Atcoderdp1.java
public class Atcoderdp1 {
       ^
1 error
Language: C++

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

int n;

int dp[100100];
int h[100100]; 
 
int main() {

  cin >> n;
  for(int i = 1; i <= n; ++i) cin >> h[i];
 
  dp[1] = 0;
  dp[2] = abs(h[2]-h[1]);
 
  //DPループ
  for(int i = 3; 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] << endl;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: Java

public static int Main(int n,int[] height){
		
		int result=0;
		//height[n]=0;height[n+1]=0;
		int[] dp=new int[n+2];
		result=getCost(0,height,dp,n);
		
		return result;
	}

	private static int getCost(int i, int[] height, int[] dp, int n) {

		if (i >= n - 1)
			return dp[i] = 0;

		if (dp[i] == 0) {
			dp[i] = Math.min(
					Math.abs(height[i] - height[i + 1])
							+ getCost(i + 1, height, dp, n),
					Math.abs(height[i] - height[i + 2])
							+ getCost(i + 2, height, dp, n));
		}

		return dp[i];
	}

Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
public static int Main(int n,int[] height){
              ^
  (use --enable-preview to enable unnamed classes)
1 error
Language: Java

public class Frog {

	//top down approach.
	public static int getMinCost(int n,int[] height){
		
		int result=0;
		//height[n]=0;height[n+1]=0;
		int[] dp=new int[n+2];
		result=getCost(0,height,dp,n);
		
		return result;
	}

	private static int getCost(int i, int[] height, int[] dp, int n) {

		if (i >= n - 1)
			return dp[i] = 0;

		if (dp[i] == 0) {
			dp[i] = Math.min(
					Math.abs(height[i] - height[i + 1])
							+ getCost(i + 1, height, dp, n),
					Math.abs(height[i] - height[i + 2])
							+ getCost(i + 2, height, dp, n));
		}

		return dp[i];
	}
	
	
	/*public static void main(String[] args) {
		int n=6;
		int[] arr={30,10,60,10,60,50};
		int[] arrTpDn={30,10,60,10,60,50,0};
		System.out.println(getMinCostBtUp(n, arr));
	}
	
	//bottom up approach
	
	public static int getMinCostBtUp(int n, int[] height) {

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

		}

		return dp[n - 1];
	}*/


	
}

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

#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll dp[100005]={0};
ll n;
int main(){
    cin>>n;
    ll cost[n];
    for(ll i=0;i<n;i++){
        cin>>cost[i];
    }
     
    
    for(ll i=0;i<n;i++){
        if(i==0){
            dp[i]=cost[i];
        }
        else if(i==1){
            dp[i]=abs(cost[i]-dp[i-1]);
        }
        else if(i==2){
            dp[i]=min(abs(cost[i]-cost[i-1]),abs(cost[i]-cost[i-2]));
        }
        else{
            dp[i]=min(dp[i-1]+abs(cost[i]-cost[i-1]),dp[i-2]+abs(cost[i]-cost[i-2]));
        }

    }
  if(i==1) cout<<0<<endl;
  else         
    cout<<dp[n-1]<<endl;

    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:6: error: 'i' was not declared in this scope
   29 |   if(i==1) cout<<0<<endl;
      |      ^
Language: C++

#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)   FOR(i,0,n)
#define ALL(obj)   (obj).begin(),(obj).end()

#define debug(var)  do{std::cout << __LINE__ << "> " << #var << ": ";view(var);}while(0)
template<typename T> void view(T e){std::cout << e << std::endl;}
template<typename T> void view(const std::vector<T>& v){for(const auto& e : v){ std::cout << e << " "; } std::cout << std::endl;}
template<typename T> void view(const std::vector<std::vector<T> >& vv){ for(const auto& v : vv){ view(v); } }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

using namespace std;
using ll = long long;
using vi = vector<int>;
using vl = vector<ll>;
using vvi = vector<vector<int>>;
using vvl = vector<vector<ll>>;

void Main() {
	int N; cin >> N;
	vi H(N);
	REP(i,N) cin >> H[i];
	vl dp(N);
	dp[0] = 0;
	FOR(i, 1, N) {
		if (i == 1) {
			dp[i] = dp[i - 1] + abs(H[i] - H[i - 1]);
		} else {
			dp[i] = min(dp[i - 1] + abs(H[i] - H[i - 1]), dp[i - 2] + abs(H[i] - H[i - 2]), dp[i]);
		}
	}
	cout << dp[N - 1] << endl;
}

int main() {
    cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	cout << fixed << setprecision(15);
	Main();
}


Compiler output:
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: In instantiation of 'constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare) [with _Tp = long long int; _Compare = long long int]':
a.cc:30:15:   required from here
   30 |                         dp[i] = min(dp[i - 1] + abs(H[i] - H[i - 1]), dp[i - 2] + abs(H[i] - H[i - 2]), dp[i]);
      |                                 ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:284:17: error: '__comp' cannot be used as a function
  284 |       if (__comp(__b, __a))
      |           ~~~~~~^~~~~~~~~~