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

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
import java.util.*;
/**
 *
 * @author arvin
 */
public class Frog1 {
    
    static int n,a[];
    static long dp[];
    
    static long rec(int x)
    {
        if(x>=n)
            return 0l;
        long ab,cd;
        int f=Math.min(x+1,n-1);
        int g=Math.min(x+2,n-1);
        if(dp[x+1]==0)
            ab=rec(x+1);
        else
            ab=dp[x+1];
        dp[x+1]=ab;
         if(dp[x+2]==0)
            cd=rec(x+2);
        else
            cd=dp[x+2];
        dp[x+2]=cd;
        return Math.min(ab+Math.abs(a[x]-a[f]),cd+Math.abs(a[x]-a[g]));
    }
    public static void main(String args[])
    {
       Scanner sc=new Scanner(System.in);
       n=sc.nextInt();
       sc.nextLine();
       a=new int[n];
       dp=new long[n+5];
       String abc[]=sc.nextLine().split(" ");
       for(int i=0;i<n;i++)
           a[i]=Integer.parseInt(abc[i]);
       System.out.println(rec(0));
       sc.close();
    }
}


Compiler output:
Main.java:11: error: class Frog1 is public, should be declared in a file named Frog1.java
public class Frog1 {
       ^
1 error
Language: Java

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

public class Solution {
    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(dp[i-2]+Math.abs(a[i]-a[i-2]), dp[i-1]+Math.abs(a[i]-a[i-1]));
        }
        System.out.println(dp[n-1]);
    }
}

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

#include <bits/stdc++.h>
#include <algorithm>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define stdi(in) freopen(in, "r", stdin)
#define stdo(out) freopen(out, "w", stdout)
#define stdio(in, out) stdi(in); stdo(out)
#define mp make_pair
#define pb push_back
#define F first
#define S second
#define MAX 1000007
#define MOD 1000000007
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
//typedef int ittt;
//#define int ll


using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
#define ordered_set tree<int , null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>

const ll inf = 1e18;

ll hit[MAX];
ll dp[MAX];
int n;

ll solve(int i){
	if(i<=1){
		return 0;
	}

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

	ll ans = solve(i-1)+abs(hit[i]-hit[i-1]);

	if(i-2>0){
		ans = min(ans, solve(i-2)+abs(hit[i]-hit[i-2]))
	}

	return dp[i] = ans;

}

int main(){
    #ifndef ONLINE_JUDGE
        stdio("in", "out");
    #endif
    fast;
    cin>>n;

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

    ll ans = solve(n);
    cout<<ans<<'\n';
    
    return 0;
}

Compiler output:
a.cc: In function 'll solve(int)':
a.cc:40:64: error: expected ';' before '}' token
   40 |                 ans = min(ans, solve(i-2)+abs(hit[i]-hit[i-2]))
      |                                                                ^
      |                                                                ;
   41 |         }
      |         ~
Language: C++

#include<bits/stdc++.h>
#define ll long long int
#define pb push_back
#define pf pop_front
#define mp make_pair
using namespace std;


int main()
{
	ios_base::sync_with_stdio(false);
    cin.tie(NULL);
	
	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]<<endl;c
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:29: error: 'c' was not declared in this scope
   24 |         cout<<dp[n-1]<<endl;c
      |                             ^
Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>
#include <vector>
#include <memory.h>
#include <algorithm>
#define case        printf("Case %d: ",++tc);
#define read        freopen("tst.txt","r",stdin)
#define write       freopen("out.txt","w",stdout)
typedef long long ll;
using namespace std;
#define pi acos(-1)
#define mx 100002
vector<int> v;
int dp[mx];

int n;
int fn(int pos){
    if(pos>=n-1)    return 0;

    int p = INT_MAX,q = INT_MAX;

    for(int i = 1;i<=2; i++){
        int h = abs(v[pos+i]-v[pos]);
        p = min(p,h+fn(pos+i));
    }
    return p;
}

int main(){
int t,tc = 0;

scanf("%d",&n);
memset(dp,-1,sizeof dp);
v = vector<int> (n);

for(int i = 0; i<n; i++)    scanf("%d",&v[i]);

int ans = fn(0);
printf("%d\n",ans);

return 0;
}


Compiler output:
a.cc: In function 'int fn(int)':
a.cc:21:13: error: 'INT_MAX' was not declared in this scope
   21 |     int p = INT_MAX,q = INT_MAX;
      |             ^~~~~~~
a.cc:7:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    6 | #include <algorithm>
  +++ |+#include <climits>
    7 | #define case        printf("Case %d: ",++tc);
Language: C++

#include <stdio.h>

int N;
int h[100004];
int c[100004];

int getCost(int x, int y) {
	int c = x - y;
	return c < 0 ? c * -1 : c;
}

int cost(int i) {
	if (i >= N - 1)
		return 0;
	if (c[i] != -1)
		return c[i];
	int a = getCost(h[i], h[i+1]) + cost(i + 1);
	int b = i + 2 < N ? getCost(h[i], h[i+2]) + cost(i + 2) : a+1;
	c[i] = a < b ? a : b;
	return c[i];
}

int main()
{
	scanf_s("%d", &N);
	for (int i = 0; i < N; i++) {
		scanf_s("%d", &h[i]);
		c[i] = -1;
	}

	printf("%d", cost(0));
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
   25 |         scanf_s("%d", &N);
      |         ^~~~~~~
      |         scanf
Language: C++

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

int dp(int i,int a[])
{
    if(i==0)
    return 0;
    if(i==1)
    return (a[0]-a[1]);
    
    a[i]=min((abs(a[i]-a[i-1])+dp(i-1,a)),abs(a[i]-a[i-2])+dp(i-2,a));
    return a[i];
}

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:25:13: error: 'dp' cannot be used as a function
   25 |     cout<<dp(n-1,a);
      |           ~~^~~~~~~
Language: C++

#include<cmath>
#include<algorithm>
using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin >> N;
      |   ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include<algorithm>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:14:3: error: 'cout' was not declared in this scope
   14 |   cout << dp[N] << endl;
      |   ^~~~
a.cc:14:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:14:20: error: 'endl' was not declared in this scope
   14 |   cout << dp[N] << endl;
      |                    ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include<algorithm>
  +++ |+#include <ostream>
    3 | using namespace std;
Language: C++

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

int main()
{
    ll n,x;
    cin>>n;
    ll ar[n+1],dp[n+1];
    for(ll i=1; i<=n; i++ )
    {
        cin>>ar[i];
    }
    dp[n]=0;
    dp[n-1]=abs(ar[n-1]-ar[n]);
    for(ll i=n-2;i>=1;i--)
    {
        y=1e+9;
        for(ll j=1;j<=100&&j<=n-i;j++)
        {
            x=dp[i+j]+abs(ar[i+j]-ar[i]);
            if(x<y)
                y=x;
        }
        dp[i]=x;
    }
    cout<<dp[1];
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: 'y' was not declared in this scope
   18 |         y=1e+9;
      |         ^
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'i' was not declared in this scope
   16 |     for(i=n-2;i>=1;i--)
      |         ^
Language: C++

// slight modification similar logic errichto's code

#include <bits/stdc++.h>

using namespace std;


const int INF = 1e9 + 5;

int main(){

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    
    int n; 
    vector<int> h(n);

    for(int & x: h){
        cin >> 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]));
            }
        }
    }

    cout << dp[n-1] << "\n";
    
    
 
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:28: error: expected ';' before 'i'
   26 |     for(int i = 0; i < n ++i){
      |                            ^
      |                            ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair<int, int>
#define vi vector<int>
#define pb emplace_back
#define sz(x) (int)x.size()
#define all(v) v.begin(), v.end()
#define x first
#define y second
#define rep(i, j, k) for(i=j; i<k; i++)
#define sep(i, j, k) for(i=j; i>k; i--)
const int N = 2e5+5, inf = 1e9+7;
int n, k, i, j;
int A[N];
int dp[N];
signed main()
{
    ios_base::sync_with_stdio(false); cin.tie(0);
    int i, j, a, b, ans = 0;
    cin>>n;
    rep(i, 1, n+1) cin>>A[i];
    dp[n+1] = inf*inf;
    sep(i, n-1, 0) dp[i] = min(dp[i+1], abs(A[i]-A[i+1]), dp[i+2], abs(A[i]-A[i+2]));
    cout<<dp[1];
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:31: error: no matching function for call to 'min(long long int&, long long int, long long int&, long long int)'
   24 |     sep(i, n-1, 0) dp[i] = min(dp[i+1], abs(A[i]-A[i+1]), dp[i+2], abs(A[i]-A[i+2]));
      |                            ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:   candidate expects 2 arguments, 4 provided
/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, 4 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, 4 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:   candidate expects 2 arguments, 4 provided
Language: C++

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

int main(){

    ll n;
    cin>>n;
  	ll k;
  cin>>k;
     ll a[n];
    for( ll i =0 ; i<n ;i++)cin>>a[i];


    ll ans[n+1];
    memset(ans,0,sizeof(ans));
    ans[0]=0;
  	ans[1]= abs(a[1]-a[0]);
    for(ll i=2;i<n;i++)
    {
     	ans[i] = ans[i-1] +abs (a[i]-a[i-1]);
      	for(ll j = 2;  j<k && i-j >=1; j++)
        {
          ans[i] = min(ans[i],ans[i-j] +min(a[i]-a[i-j]));
    }

    cout<<ans[n-1];


}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:44: error: no matching function for call to 'min(ll)'
   24 |           ans[i] = min(ans[i],ans[i-j] +min(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:   candidate expects 2 arguments, 1 provided
/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, 1 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:   template argument deduction/substitution failed:
a.cc:24:44: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   24 |           ans[i] = min(ans[i],ans[i-j] +min(a[i]-a[i-j]));
      |                                         ~~~^~~~~~~~~~~~~
/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:   candidate expects 2 arguments, 1 provided
a.cc:30:2: error: expected '}' at end of input
   30 | }
      |  ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <cmath>

#define ll long long int

ll heights[100000];
ll dp[100000];

ll f(ll i) {
  if (dp[i] != -1) {
    return dp[i];
  }
  dp[i] = min(f(i + 1) + abs(h[i + 1] - h[i]), f(i + 2) + abs(h[i + 2] - h[i]));
  return dp[i];
}

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

Compiler output:
a.cc: In function 'long long int f(long long int)':
a.cc:13:30: error: 'h' was not declared in this scope
   13 |   dp[i] = min(f(i + 1) + abs(h[i + 1] - h[i]), f(i + 2) + abs(h[i + 2] - h[i]));
      |                              ^
a.cc:13:11: error: 'min' was not declared in this scope; did you mean 'std::min'?
   13 |   dp[i] = min(f(i + 1) + abs(h[i + 1] - h[i]), f(i + 2) + abs(h[i + 2] - h[i]));
      |           ^~~
      |           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:19:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   19 |   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:21:12: error: 'h' was not declared in this scope
   21 |     cin >> h[i];
      |            ^
a.cc:25:19: error: 'h' was not declared in this scope
   25 |   dp[n - 1] = abs(h[n] - h[n - 1]);
      |                   ^
a.cc:26:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   26 |   cout << f(1) << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:26:19: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   26 |   cout << f(1) << endl;
      |                   ^~~~
      |                   std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
ll h[150000],dp[150000];

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

main()
{ ll n;
  cin>>n;
  for(ll i=1;i<=n;i++)
  {cin>>h[i];
   dp[i]=-1;}
 dp[n-1] = h[n]-h[n-1];
 dp[n]=0;
 
  cout<<f(1);
}


Compiler output:
a.cc:3:1: error: 'll' does not name a type
    3 | ll h[150000],dp[150000];
      | ^~
a.cc:5:1: error: 'll' does not name a type
    5 | ll f(ll n)
      | ^~
a.cc:13:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   13 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:14:3: error: 'll' was not declared in this scope
   14 | { ll n;
      |   ^~
a.cc:15:8: error: 'n' was not declared in this scope; did you mean 'yn'?
   15 |   cin>>n;
      |        ^
      |        yn
a.cc:16:9: error: expected ';' before 'i'
   16 |   for(ll i=1;i<=n;i++)
      |         ^~
      |         ;
a.cc:16:14: error: 'i' was not declared in this scope
   16 |   for(ll i=1;i<=n;i++)
      |              ^
a.cc:17:9: error: 'h' was not declared in this scope
   17 |   {cin>>h[i];
      |         ^
a.cc:18:4: error: 'dp' was not declared in this scope; did you mean 'dup'?
   18 |    dp[i]=-1;}
      |    ^~
      |    dup
a.cc:19:2: error: 'dp' was not declared in this scope; did you mean 'dup'?
   19 |  dp[n-1] = h[n]-h[n-1];
      |  ^~
      |  dup
a.cc:19:12: error: 'h' was not declared in this scope
   19 |  dp[n-1] = h[n]-h[n-1];
      |            ^
a.cc:22:9: error: 'f' was not declared in this scope
   22 |   cout<<f(1);
      |         ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define MM 1000000000
#define MOD MM+7
#define MAX 10000
#define MAP 110
#define Pair pair<int,int>

int dx[4] = {-1, 0, 1, 0};
int dy[4] = {0, -1, 0, 1};
int dp[h][w];
int main(){
    int N; cin >> N;
    int h[N];
    int dp[N];
    for(int i = 0; i < N; i++){
        cin >> h[i];
    }
    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]),
                dp[i-1] + abs(h[i]-h[i-1]));
    }
    cout << dp[N-1] << endl;
}


Compiler output:
a.cc:12:8: error: 'h' was not declared in this scope
   12 | int dp[h][w];
      |        ^
a.cc:12:11: error: 'w' was not declared in this scope
   12 | int dp[h][w];
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int a[100001],f[100001]
int main()
{
  int i,n;
  scanf("%d",&n);
  for(i=1;i<=n;i++)
    scanf("%d",&a[i]);
  f[0]=a[0];
  f[1]=a[1];
  f[2]=
  for(i=3;i<=n;i++)
  {
    f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
  }
  printf("%d",f[n]);
}

Compiler output:
a.cc:15:18: error: extended character − is not valid in an identifier
   15 |     f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
      |                  ^
a.cc:15:34: error: extended character − is not valid in an identifier
   15 |     f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
      |                                  ^
a.cc:15:40: error: extended character − is not valid in an identifier
   15 |     f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
      |                                        ^
a.cc:15:51: error: extended character − is not valid in an identifier
   15 |     f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
      |                                                   ^
a.cc:15:64: error: extended character − is not valid in an identifier
   15 |     f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
      |                                                                ^
a.cc:15:70: error: extended character − is not valid in an identifier
   15 |     f[i]=min(f[i − 1] + abs(a[i] − a[i − 1]|, f[i − 2] + |a[i] − a[i − 2]|);
      |                                                                      ^
a.cc:4:1: error: expected initializer before 'int'
    4 | int main()
      | ^~~
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;


public class Atcoder1{
	
	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; 
        } 
    }
	public static void main(String[] args) 
	{
		OutputStream outputStream = System.out;
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(outputStream);
        int n = sc.nextInt();
        int h[] = new int[n];
        for(int i = 0; i < n; i++) h[i] = sc.nextInt();
        
        int dp[] = new int[n];
        dp[0] = 0;
        dp[1] = Math.abs(h[1]-h[0]);
        for(int i = 2; i < n; i++)
        {
        	dp[i] = Math.min(dp[i-1]+Math.abs(h[i]-h[i-1]),dp[i-2]+Math.abs(h[i]-h[i-2]));
        }
        out.println(dp[n-1]);
        out.close();
	}

}


Compiler output:
Main.java:9: error: class Atcoder1 is public, should be declared in a file named Atcoder1.java
public class Atcoder1{
       ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define mod 1000000007

int main() {
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    //ios_base::sync_with_stdio(0); cin.tie(NULL);
    int n;
    cin >> n;
    int arr[n];
    for (int i=0; i<n; i++) {
        cin >> arr[i];
    }
    const int INF = 1e5+9;
    int dp[n];
    dp[0] = 0;
    dp[1]=abs(a[1]-a[0]);
    
    for(int i=2;i<n;i++)
        dp[i]=min(dp[i-1]+abs(a[i]-a[i-1]),dp[i-2]+abs(a[i]-a[i-2]));
    cout<<dp[n-1]; 
    printf("%d", dp[n-1]);
    //return 0;
}   

Compiler output:
a.cc: In function 'int main()':
a.cc:19:15: error: 'a' was not declared in this scope
   19 |     dp[1]=abs(a[1]-a[0]);
      |               ^
Language: Java

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

public class A {

    public static void main(String[] args) throws IOException {
        init();

        int N = nextInt();

        int[] h = new int[N];

        for (int i = 0; i < h.length; i++) h[i] = nextInt();

        int[] dp = new int[N];

        for (int i = N - 1; i >= 0; i--) {
            if (i == N - 1) dp[i] = 0;
            if (i + 1 < dp.length) dp[i] = dp[i + 1] + Math.abs(h[i + 1] - h[i]);
            if (i + 2 < dp.length) dp[i] = Math.min(dp[i], dp[i + 2] + Math.abs(h[i + 2] - h[i]));
        }

        System.out.println(dp[0]);
    }

    //Input Reader
    private static BufferedReader reader;
    private static StringTokenizer tokenizer;

    private static void init() {
        reader = new BufferedReader(new InputStreamReader(System.in));
        tokenizer = new StringTokenizer("");
    }

    private static String next() throws IOException {
        String read;
        while (!tokenizer.hasMoreTokens()) {
            read = reader.readLine();
            if (read == null || read.equals(""))
                return "-1";
            tokenizer = new StringTokenizer(read);
        }

        return tokenizer.nextToken();
    }

    private static int nextInt() throws IOException {
        return Integer.parseInt(next());
    }
}

Compiler output:
Main.java:4: error: class A is public, should be declared in a file named A.java
public class A {
       ^
1 error
Language: C++

int main(){
 	
    int N;
    
    cin>>N;
    
    vector<int> h(N);
    
  	for(int i=0;i<N;i++){
      cin>>h[i];
    }
    
    int dp[N];
    
    dp[0]=h[0];
    dp[1]=abs(h[0]-h[1]);
    dp[2]=abs(h[0]-h[2]);
    
    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-1]<<endl;
   
  	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     cin>>N;
      |     ^~~
a.cc:7:5: error: 'vector' was not declared in this scope
    7 |     vector<int> h(N);
      |     ^~~~~~
a.cc:7:12: error: expected primary-expression before 'int'
    7 |     vector<int> h(N);
      |            ^~~
a.cc:10:12: error: 'h' was not declared in this scope
   10 |       cin>>h[i];
      |            ^
a.cc:15:11: error: 'h' was not declared in this scope
   15 |     dp[0]=h[0];
      |           ^
a.cc:16:11: error: 'abs' was not declared in this scope
   16 |     dp[1]=abs(h[0]-h[1]);
      |           ^~~
a.cc:20:15: error: 'min' was not declared in this scope; did you mean 'main'?
   20 |         dp[i]=min(dp[i-1]+abs(h[i]-h[i-1]),dp[i-2]+abs(h[i]-h[i-2]));
      |               ^~~
      |               main
a.cc:23:5: error: 'cout' was not declared in this scope
   23 |     cout<<dp[N-1]<<endl;
      |     ^~~~
a.cc:23:20: error: 'endl' was not declared in this scope
   23 |     cout<<dp[N-1]<<endl;
      |                    ^~~~
Language: Java


import java.util.Scanner;


public class Frog1 {
    
    public static void main(String[] args) {
        
        Scanner input = new Scanner (System.in);
        
        int n = input.nextInt();
        
        int [] array1 = new int [n];
        
        for(int i = 0 ; i < n ; i++)
            array1[i] = input.nextInt();
        
        int [] array2 = new int [n];
        
        array2[0] = 0;
        array2[1] = Math.abs(array1[0] - array1[1]);
        
        for(int i = 2 ; i < n ; i++)
        {
            int temp1 = Math.abs(array1[i-1] - array1[i]) + array2[i-1];
            int temp2 = Math.abs(array1[i-2] - array1[i]) + array2[i-2];
            
            array2[i] = Math.min(temp1 , temp2);
        }
        
        System.out.println(array2[n-1]);
    }
        
        
    
}


Compiler output:
Main.java:5: error: class Frog1 is public, should be declared in a file named Frog1.java
public class Frog1 {
       ^
1 error
Language: Java

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


public class test {


    public static void main(String[] args) {
        FastReader in = new FastReader();
        int n = in.nextInt();
        int arr[] = new int[n];
        for(int i=0;i<n;i++){
            arr[i] = in.nextInt();
        }
        int a = 0;
        int b = Math.abs(arr[1] - arr[0]);
        for(int i=3;i<=n;i++){
            int temp = b;
            b = Math.min(Math.abs(arr[i-1]-arr[i-2])+b , Math.abs(arr[i-1]-arr[i-3]) + a );
            a = temp;
        }
        System.out.println(b);


    }



    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:8: error: class test is public, should be declared in a file named test.java
public class test {
       ^
1 error
Language: Java


import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;

public class Dp1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		out=new PrintWriter (new BufferedOutputStream(System.out));
		FastReader s=new FastReader();
		int n=s.nextInt();
		int[] arr=new int[n];
		for(int i=0;i<n;i++) {
			arr[i]=s.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]=Integer.min(dp[i-1]+Math.abs(arr[i]-arr[i-1]), dp[i-2]+Math.abs(arr[i]-arr[i-2]));
		}
		out.println(dp[n-1]);
		out.close();
	}
	
	public static PrintWriter out;
	
	public static class FastReader {
		BufferedReader br;
		StringTokenizer st;
		//it reads the data about the specified point and divide the data about it ,it is quite fast
		//than using direct 

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

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

		int nextInt() {
			return Integer.parseInt(next());//converts string to integer
		}

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

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

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

}


Compiler output:
Main.java:8: error: class Dp1 is public, should be declared in a file named Dp1.java
public class Dp1 {
       ^
1 error
Language: Java

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


public class Frog1 {

    private static InputStreamReader isr = new InputStreamReader(System.in);
    private static BufferedReader br = new BufferedReader(isr);

    private static int minCost(int[] height, int[] dp, int i) {
        if (i == height.length - 1) return 0;

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

        if (i + 1 >= height.length) {
            dp[i] = minCost(height, dp, i);
            return dp[i];
        }

        if (i + 2 >= height.length) {
            dp[i] = Math.abs(height[i] - height[i+1]) + minCost(height, dp, i+1);
            return dp[i];
        }

        int oneStep = Math.abs(height[i] - height[i+1]) + minCost(height, dp, i+1);
        int twoStep = Math.abs(height[i] - height[i+2]) + minCost(height, dp, i+2);
        dp[i] = Math.min(oneStep, twoStep);
        return dp[i];
    }

    public static void main(String[] argv) throws IOException {
        int n = Integer.parseInt(br.readLine());
        int height[] = Arrays.stream(br.readLine().split(" "))
            .mapToInt(Integer::parseInt).toArray();
        int[] dp = new int[n];
        Arrays.fill(dp, -1);
        System.out.println(minCost(height, dp, 0));
    }
}


Compiler output:
Main.java:5: 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 IO ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)
const int maxn = 1e5 + 4;
long long n, dp[maxn], arr[maxn];

long long solve(int indx)
{
    if(indx >= n)
        return INT_MAX;
    if(indx == n - 1)
        return 0;
    if(dp[indx] != -1)
        return dp[indx];
    long long ans1 = 0, ans2 = 0, ans;
    ans1 += solve(indx + 1) + abs(arr[indx] - arr[indx + 1]);
    ans2 += solve(indx + 2) + abs(arr[indx] - arr[indx + 2]);
    ans = min(ans1, ans2);
    return dp[indx] = ans;
}

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


Compiler output:
main.c:1:10: 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;

const int Max = 1e5 + 5;
int h[Max], dp[Max];

int solve(int n){
	if (!dp[n]){
		if (n == 2)
			return abs(h[2] - h[1]);
		if (n == 3)
			return min(abs(h[3] - h[2]), abs(h[3] - h[1]));
		int jump1step = abs(h[n] - h[n - 1]) + solve(n - 1);
		int jump2steps = abs(h[n] - h[n - 2]) + solve(n - 2);
		int res = min(jump1step, jump2steps);
		dp[n] = res;
		return res;
	}
}

int main() {
	int n;
	cin >> n;
	for (int i = 1; i <= n; ++i)
		cin >> h[i];
	cout << solve(n);
	return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:28:18: error: expected '}' at end of input
   28 |         return 0;
      |                  ^
a.cc:22:12: note: to match this '{'
   22 | int main() {
      |            ^
a.cc: In function 'int solve(int)':
a.cc:20:1: warning: control reaches end of non-void function [-Wreturn-type]
   20 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:16:32: error: 'a' was not declared in this scope
   16 |    dp[i] = min(dp[i - 1] + abs(a[i] - a[i - 1]), dp[i - 2] + abs(a[i] - a[i - 2]));
      |                                ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:17:11: error: incompatible types in assignment of 'const int' to 'int [(n + 1)]'
   17 |       ans = min(ans[i], ans[i-1]+abs(h[i-1]-h[i]));
      |       ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:19:11: error: incompatible types in assignment of 'const int' to 'int [(n + 1)]'
   19 |       ans = min(ans[i], ans[i-2]+abs(h[i-2]-h[i]));
      |       ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

/*

Author: @karngyan
Team: BlundersPride

*/

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

typedef long long ll;

#define fast ios_base::sync_with_stdio(false),cin.tie(NULL),cout.tie(NULL)
#define endl '\n'
#define pb push_back
#define INF 99999999999999999
vector<ll> a;

ll n;
ll cache[100010];
ll go(ll i)
{

	if(i == n-1)
	{
		return 0;
	}

    ll &ans = dp[i];
    if(ans != -1)
        return ans;
    
	if(i == n-2)
	{
		ans = abs(a[n-1] - a[n-2]);
		return ans;
	}
	ans = min(abs(a[i+1] - a[i]) + go(i+1) , abs(a[i+2] - a[i]) + go(i+2)  );
	return ans;
}

signed main()
{

	fast;
////////////////////////////////////////////////////////////////////////////////////////////
	memset(cache , -1, sizeof cache);
    
	cin >> n;
	a.resize(n);
	for(ll i = 0 ; i<n ; ++i)
	{
		cin >> a[i];
	}

	// cout<<0<<endl;
	cout<<go(0)<<endl;





	
	return 0;
}


Compiler output:
a.cc: In function 'll go(ll)':
a.cc:29:15: error: 'dp' was not declared in this scope; did you mean 'dup'?
   29 |     ll &ans = dp[i];
      |               ^~
      |               dup
Language: C++

#include<iostream>
#include<algorithm>
#include<cmath>
#include<math.h>
#include<vector>
#include<memory>
using namespace std;
int n,m,a[100005],dp[100005];
int sol(int x){
	if(x>=n-1)return 0;
	if(dp[x]!=-1){
		return dp[x];
	}else {
		int t=0,y=0;
		if(x<n){
			y=sol(x+1)+abs(a[x+1]-a[x]);
		}if(x<n-1){
			t=sol(x+2)+abs(a[x+2]-a[x]);
		}
		dp[x]= min(y,t);
		return dp[x];
	}
}
int main(){
	memset(dp,-1,sizeof a);
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i];
	}
	cout<<sol(0);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:9: error: 'memset' was not declared in this scope
   25 |         memset(dp,-1,sizeof a);
      |         ^~~~~~
a.cc:7:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    6 | #include<memory>
  +++ |+#include <cstring>
    7 | using namespace std;
Language: Java

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

public class mymy
{

	static int[] dp,a;
	static int n;
	

	static int find(int i)
	{
		if(i>=n)
			return Integer.MAX_VALUE;
		if(i==n-1)
			return 0;
		if(dp[i]!=0)
			return dp[i];
		if(i+1<=n-1 && i+2<=n-1)
			return dp[i]=Math.min(Math.abs(a[i+1]-a[i])+find(i+1),Math.abs(a[i+2]-a[i])+find(i+2));
		if(i+1<=n-1)
			return dp[i]=Math.abs(a[i+1]-a[i])+find(i+1);
		return dp[i]=Math.abs(a[i+2]-a[i])+find(i+2);

	}

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

			BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		

			// int t=Integer.parseInt(br.readLine());

			
			n=Integer.parseInt(br.readLine());
			dp=new int[n];a=new int[n];
			String[] s=br.readLine().split(" ");

			for(int i=0;i<n;i++)
				a[i]=Integer.parseInt(s[i]);
			
			System.out.println(find(0));





			

	}
	
}







Compiler output:
Main.java:4: error: class mymy is public, should be declared in a file named mymy.java
public class mymy
       ^
1 error
Language: C++

#include<iostream>
using namespace std;
int main(){
  int n;
  cin >> n;
  int hs[n];
  for(int i = 0; i < n; ++i){
    cin >> hs[i];
  }
  ans = solve(n, hs);
  cout << ans << endl;
  return 0;
}

int solve(int n, int h[]){
  int dp[n];
  dp[0] = 0;
  dp[1] = abs(h[1] - h[0]);
  for(int i = 1; i < n; ++i){
    dp[i] = min(dp[i-1] + abs(h[i] - h[i-1]), dp[i-2] + abs(h[i] - h[i-2]));
  }
  return dp[n]
}
                

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
   10 |   ans = solve(n, hs);
      |   ^~~
      |   abs
a.cc:10:9: error: 'solve' was not declared in this scope
   10 |   ans = solve(n, hs);
      |         ^~~~~
a.cc: In function 'int solve(int, int*)':
a.cc:22:15: error: expected ';' before '}' token
   22 |   return dp[n]
      |               ^
      |               ;
   23 | }
      | ~
Language: C++

INF = pow(10, 9)


def chmin(a, b):
    """

    :rtype: (int, boolean)
    """
    if a > b:
        return b, True
    return a, False


N = int(input())
H = [int(h) for h in input().split()]

dp = [INF for _ in range(N)]


if __name__ == '__main__':
    dp[0] = 0
    for i in range(1, N):
        dp[i], _ = chmin(dp[i], dp[i-1] + abs(H[i] - H[i - 1]))
        if i > 1:
            dp[i], _ = chmin(dp[i], dp[i - 2] + abs(H[i] - H[i - 2]))
    print(dp[-1])


Compiler output:
a.cc:5:7: warning: missing terminating " character
    5 |     """
      |       ^
a.cc:5:7: error: missing terminating " character
a.cc:8:7: warning: missing terminating " character
    8 |     """
      |       ^
a.cc:8:7: error: missing terminating " character
a.cc:20:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
   20 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:1:1: error: 'INF' does not name a type
    1 | INF = pow(10, 9)
      | ^~~
Language: C++


import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		dPA();

	}

	private static void dPA() {
		Scanner scanner = null;
		int numFlog = 0;

		try {
			scanner = new Scanner(System.in);
			numFlog = scanner.nextInt();
			int[] heightArray = new int[numFlog];

			for (int i = 0; i < numFlog; i++) {
				heightArray[i] = scanner.nextInt();
			}

			int[] koufukuArray = new int[numFlog];
			for (int i = 0; i < koufukuArray.length; i++) {
				if (i != 0 && i != 1) {
					koufukuArray[i] = Math.abs(heightArray[i] - heightArray[i - 1]) < Math
							.abs(heightArray[i] - heightArray[i - 2])
									? koufukuArray[i - 1] + Math.abs(heightArray[i] - heightArray[i - 1])
									: koufukuArray[i - 2] + Math.abs(heightArray[i] - heightArray[i - 2]);
				} else if (i == 0) {
					koufukuArray[i] = 0;
				} else if (i == 1) {
					koufukuArray[i] = koufukuArray[i - 1] + Math.abs(heightArray[i] - heightArray[i - 1]);
				}

			}
			System.out.println(koufukuArray[koufukuArray.length - 1]);

		} finally {
			if (scanner != null) {
				scanner.close();
			}
		}
	}
}

Compiler output:
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.Scanner;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: expected unqualified-id before 'public'
    4 | public class Main {
      | ^~~~~~
Language: C++

#include <iostream>
#include <cstdlib> //絶対値abs
#include <algorithm> //minmax
using namespace std;
int N;
long long h[100010];
long long dp[100010];
const long long INF = 1LL << 62;
int main(){
	cin >> N;
	for (int i = 0; i < N; ++i){
		cin >> h[i];
	}
	for (int i = 0; i < 100010; ++i) dp[i] = INF;

	dp[0] = 0;
	dp[1] = abs(h[i]-h[i-1])+dp[i-1];

	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: In function 'int main()':
a.cc:17:23: error: 'i' was not declared in this scope
   17 |         dp[1] = abs(h[i]-h[i-1])+dp[i-1];
      |                       ^
Language: C++

#include <algorithm>
#include <fstream>
#include <iostream>
#include <vector>
#include <cmath>
#include <iterator>
#include <map>
#include <set>
#ifndef ONLINE_JUDGE
#include <prettyprint/prettyprint.hpp>
#endif

#define FOR(i, n) for(int i = 0; i < n; ++i)
#define TEST int T; std::cin >> T; while(T--)
#define ALL(v) v.begin(), v.end()

using ll = long long;
using ull = unsigned long long;
using vi = std::vector<int>;
using vll = std::vector<ll>;
using vull = std::vector<ull>;
using pii = std::pair<int, int>;
using pll = std::pair<ll, ll>;

using namespace std;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
#ifndef ONLINE_JUDGE
	ifstream fin("in.txt");
	ofstream fout("out.txt");
	auto cinbuf = cin.rdbuf(fin.rdbuf());    // save and redirect
	auto coutbuf = cout.rdbuf(fout.rdbuf()); // save and redirect
#endif	
	int n;
	cin >> n;

	vector<int> costs(n), heights(n);

	for(auto& e : heights) {
		cin >> e;
	}

	costs[n - 1] = 0;
	if(n - 2 >= 0) {
		costs[n - 2] = abs(heights[n - 1] - heights[n - 2]);
	}

	for(int i = n - 3; i >= 0; --i) {
		costs[i] = min(costs[i + 1] + abs(heights[i] - heights[i + 1]),
					   costs[i + 2] + abs(heights[i] - heights[i + 2]));
	}

	cout << costs[0] << endl;
#ifndef ONLINE_JUDGE
	cin.rdbuf(cinbuf);    // restore
	cout.rdbuf(coutbuf); // restore
#endif	
}


Compiler output:
a.cc:10:10: fatal error: prettyprint/prettyprint.hpp: No such file or directory
   10 | #include <prettyprint/prettyprint.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: Java

// 作者：杨成瑞先生
import java.io.*;
import java.util.*;

public class frog1 {

	static class FastScanner {
        BufferedReader br;
        StringTokenizer st;

        public FastScanner() {
            try {
                br = new BufferedReader(new InputStreamReader(System.in));
                st = new StringTokenizer(br.readLine());
            } catch (Exception e){e.printStackTrace();}
        }

        public String next() {
            if (st.hasMoreTokens()) return st.nextToken();
            try {st = new StringTokenizer(br.readLine());}
            catch (Exception e) {e.printStackTrace();}
            return st.nextToken();
        }

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

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

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

        public String nextLine() {
            String line = "";
            if(st.hasMoreTokens()) line = st.nextToken();
            else try {return br.readLine();}catch(IOException e){e.printStackTrace();}
            while(st.hasMoreTokens()) line += " "+st.nextToken();
            return line;
        }
    }

	public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter pw = new PrintWriter(System.out);

        int n = sc.nextInt();
        long[] h = new long[n];
        for(int i=0;i<n;i++) h[i] = sc.nextLong();
        pw.println(Arrays.toString(h));

        long[] dp = new long[n];
        dp[n-2] = Math.abs(h[n-2] - h[n-1]);
        for(int i=n-3;i>=0;i--) {
            dp[i] = Math.min(Math.abs(h[i] - h[i+1]) + dp[i+1], Math.abs(h[i] - h[i+2]) + dp[i+2]);
        }
        
        pw.println(dp[0]);
        pw.close();
	}

}

Compiler output:
Main.java:5: 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
#define pb  push_back
#define F  first
#define S  second
#define mak make_pair
const int N=1e5+3,mod=1e8;
int n,h,a[N];
ll oo=-1e9;
int mem[N];
dp(int i)
{
    if (i==n)return 0;
    if (i>n)return oo;
    int &ret=mem[a[i]];
    if (ret!=-1)return ret;

    int x1=abs(dp(i+1))+abs(a[i]-a[i+1]);
    int x2=abs(dp(i+2))+abs(a[i]-a[i+2]);
    return ret=min(x1,x2);


}


int main ()
{
 ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
 memset(mem,-1,sizeof mem);
 cin>>n;
 for (int i=1;i<=n;i++)
    cin>>a[i];
    cout<<dp(1);

}


Compiler output:
a.cc:12:1: error: ISO C++ forbids declaration of 'dp' with no type [-fpermissive]
   12 | dp(int i)
      | ^~
Language: C++

// In the Name of Allah. Ya Ali!
#include<bits/stdc++.h>
typedef long long ll;
const ll MAX_N = 1e5+5;
const ll MOD = 1e9+7;
using namespace std;

int dp[MAX_N];
int h[MAX_N];
int n;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:18:17: error: 'a' was not declared in this scope
   18 |     dp[2] = abs(a[2]-a[1]);
      |                 ^