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

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define max3(x,y,z) max(x,max(y,z))
ll dp[100009]= {-1};
ll inf = -1*1e9;
ll n;
ll arr[100009];


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

cout<<dp[n-1];

}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:69: error: expected ']' before ')' token
   23 |    dp[i]=min(dp[i-1]+abs(arr[i-1]-arr[i],dp[i-2]+abs(arr[i[-arr[i-2])))
      |                                                                     ^
      |                                                                     ]
a.cc:23:59: error: invalid types 'int[long long int]' for array subscript
   23 |    dp[i]=min(dp[i-1]+abs(arr[i-1]-arr[i],dp[i-2]+abs(arr[i[-arr[i-2])))
      |                                                           ^
a.cc:23:69: error: expected ']' before ')' token
   23 |    dp[i]=min(dp[i-1]+abs(arr[i-1]-arr[i],dp[i-2]+abs(arr[i[-arr[i-2])))
      |                                                                     ^
      |                                                                     ]
Language: C++

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

int main(){
  
  int n; 
  int a[n][3];
  
  for(int i = 0; i<n; i++)
    for(int j =0; j<3; j++)
      cin>>a[i][j];
  
  int dp[n+1][3];
  
  dp[0][0] = a[0][0];
  dp[0][1] = a[0][1];
  dp[0][2] = a[0][2];
  
  for(int i =1; i<n; i++){
    for(int j = 0; j<3; j++){
      if(j == 0)
        dp[i][j] = a[i-1][j] + max(dp[i-1][1], dp[i-1][2])
      if(j == 1)
        dp[i][j] = a[i-1][j] + max(dp[i-1][0], dp[i-1][2])
      if(j == 2)
        dp[i][j] = a[i-1][j] + max(dp[i-1][0], dp[i-1][1])
    }
  }
  int ans = max(dp[n-1][0], max(dp[n-1][1],dp[n-1][2]));
  cout<<ans<<endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:59: error: expected ';' before 'if'
   22 |         dp[i][j] = a[i-1][j] + max(dp[i-1][1], dp[i-1][2])
      |                                                           ^
      |                                                           ;
   23 |       if(j == 1)
      |       ~~
Language: C++

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

int main(){
  
  int n; 
  int a[n][3];
  
  for(int i = 0; i<n; i++)
    for(int j =0; j<3; j++)
      cin>>a[i][j];
  
  int dp[n+1][3];
  
  dp[0][0] = a[0][0];
  dp[0][1] = a[0][1];
  dp[0][2] = a[0][2];
  
  for(int i =1; i<n; i++){
    for(int j = 0; j<3; j++){
      if(j == 0)
        dp[i][j] = a[i][j] + max(dp[i-1][1], dp[i-1][2])
      if(j == 1)
        dp[i][j] = a[i][j] + max(dp[i-1][0], dp[i-1][2])
      if(j == 2)
        dp[i][j] = a[i][j] + max(dp[i-1][0], dp[i-1][1])
    }
  }
  int ans = max(dp[n-1][0], max(dp[n-1][1],dp[n-1][2]));
  cout<<ans<<endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:57: error: expected ';' before 'if'
   22 |         dp[i][j] = a[i][j] + max(dp[i-1][1], dp[i-1][2])
      |                                                         ^
      |                                                         ;
   23 |       if(j == 1)
      |       ~~
Language: C++

const int value = 99999;
int main()
{
    int n;
    cin >> n;
    vector<int> p(n);
    for( int &x : p){
     cin >> x;   
    }
    vector<int> dp(n,value);
    dp[0] = 0;
    for ( int i = 0; i < n-1; i++){
        for ( int j : {i +1 , i+2}){
            dp[j] =  min(dp[j],dp[i] + abs(p[i] - p[j]));
        }
    }
    cout << dp[n-1];
}

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:6:5: error: 'vector' was not declared in this scope
    6 |     vector<int> p(n);
      |     ^~~~~~
a.cc:6:12: error: expected primary-expression before 'int'
    6 |     vector<int> p(n);
      |            ^~~
a.cc:7:19: error: 'p' was not declared in this scope
    7 |     for( int &x : p){
      |                   ^
a.cc:10:12: error: expected primary-expression before 'int'
   10 |     vector<int> dp(n,value);
      |            ^~~
a.cc:11:5: error: 'dp' was not declared in this scope
   11 |     dp[0] = 0;
      |     ^~
a.cc:13:34: error: deducing from brace-enclosed initializer list requires '#include <initializer_list>'
  +++ |+#include <initializer_list>
    1 | const int value = 99999;
......
   13 |         for ( int j : {i +1 , i+2}){
      |                                  ^
a.cc:14:44: error: 'p' was not declared in this scope
   14 |             dp[j] =  min(dp[j],dp[i] + abs(p[i] - p[j]));
      |                                            ^
a.cc:14:40: error: 'abs' was not declared in this scope
   14 |             dp[j] =  min(dp[j],dp[i] + abs(p[i] - p[j]));
      |                                        ^~~
a.cc:14:22: error: 'min' was not declared in this scope; did you mean 'main'?
   14 |             dp[j] =  min(dp[j],dp[i] + abs(p[i] - p[j]));
      |                      ^~~
      |                      main
a.cc:17:5: error: 'cout' was not declared in this scope
   17 |     cout << dp[n-1];
      |     ^~~~
Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <utility>
#include <map>
#include <algorithm>
#include <queue>
#include <cmath>
#include <numeric>
#include <set>

using namespace std;
struct aaa{aaa(){cin.tie(nullptr); ios::sync_with_stdio(false); cout<<fixed<<setprecision(20);};}aaa;
template <class T>ostream &operator<<(ostream &o,const vector<T>&v){o<<"{";for(int i=0;i<(int)v.size();i++)o<<(i>0?", ":"")<<v[i];o<<"}";return o;}
#define debug(v) {cerr<<"\033[1;36m[debug]\033[m "<<#v<<" : "<<v<<endl;}

using int64 = long long;

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

    vector<int64> dp(n, INT_MAX);
    dp[0] = 0;
    dp[1] = abs(h[0] - h[1]);

    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]));
    }

    debug(dp);
    cout << dp[n-1] << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:25: error: 'INT_MAX' was not declared in this scope
   25 |     vector<int64> dp(n, INT_MAX);
      |                         ^~~~~~~
a.cc:11:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   10 | #include <set>
  +++ |+#include <climits>
   11 |
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long dp[1001][1000001],a[10001],b[10001],i,j,n,w;
long long cal(long long i, long long j)
{
    if (i>n)  return 0;
    if (dp[i][j]!=-1) return dp[i][j];
    else dp[i][j]=0;
    if (j+a[i]<=w) dp[i][j]=max(cal(i+1,j),cal(i+1,j+a[i])+b[i]);
    else dp[i][j]=cal(i+1,j);
    return dp[i][j];
}
int main()
{
    cin>>n>>w;
    for (i=1;i<=n;i++) cin>>a[i]>>b[i];
    for (i=1;i<=n;i++)
        for (j=0;j<=1000000;j++)
        dp[i][j]=-1;
    cout<<cal(1,0);
}


Compiler output:
/tmp/cccDpnSw.o: in function `cal(long long, long long)':
a.cc:(.text+0x13): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0xb4): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0xc6): relocation truncated to fit: R_X86_64_PC32 against symbol `w' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0xe2): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0x113): relocation truncated to fit: R_X86_64_PC32 against symbol `b' defined in .bss section in /tmp/cccDpnSw.o
/tmp/cccDpnSw.o: in function `main':
a.cc:(.text+0x1e4): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0x200): relocation truncated to fit: R_X86_64_PC32 against symbol `w' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0x212): relocation truncated to fit: R_X86_64_PC32 against symbol `i' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0x21f): relocation truncated to fit: R_X86_64_PC32 against symbol `i' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0x22e): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/cccDpnSw.o
a.cc:(.text+0x24d): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0; i <(n) ; ++i)
#define rrep(i,n) for(int i = (n-1); i>=0; --i)
#define PI 3.14159265
#define INF 1e9
#define LINF 1e18
using namespace std;
using ll = long long;
void self_max(int &a,int b){
	a = max(a,b);
}
void self_min(int &a,int b){
	a = min(a,b);
}

int main(){
	string s,t; cin >> s >> t;

	if(s.size()> t.size()){
		strint tmp = s;
		s = t;
		t = tmp;
	}
	
	int n = s.size(), m =t.size();

	vector<vector<int>> dp(n+1,vector<int> (m+1));

	rep(i,n+1) rep(j,m+1){
		if(i==0 or j==0 ){
			dp[i][j] = 0;
		}else{
			if(s[i-1] == t[j-1]){
				dp[i][j] = dp[i-1][j-1] + 1;
			}else{
				dp[i][j] = max(dp[i-1][j],dp[i][j-1]);
			}
		}
	}

	int i = n,j=m;
	stack<int> st;
	while(i>=1&&j>=1){
		if(dp[i][j] == dp[i-1][j-1] +1){
			st.push((int)s[i-1]);
			i--;
			j--;
		}else if(dp[i][j] == dp[i-1][j]){
			i--;
		}else if(dp[i][j] == dp[i][j-1]){
			j--;
		}
	}

	while(!st.empty()){
		cout<< (char)st.top();
		st.pop();
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:17: error: 'strint' was not declared in this scope; did you mean 'strcat'?
   20 |                 strint tmp = s;
      |                 ^~~~~~
      |                 strcat
a.cc:22:21: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   22 |                 t = tmp;
      |                     ^~~
      |                     tm
Language: C++

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

const int nax = 1e5+3;
int n;
int array[nax];
int array1[nax];
int f(int i){
	if (i==n-1) return 0;
	if(array[i]!=-1) return array[i];
	int ans = abs(array1[i]-array1[i+1])+f(i+1);
	if(i!=n-2) ans = min(ans, abs(array1[i]-array1[i+2])+f(i+2));
	return array[i]=ans;
}
int main(){
	cin>>n;
	for(int i=0; i<n; i++) 
        cin>>array1[i];
	memset(array, -1, sizeof array);
	cout<<f(0)<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int f(int)':
a.cc:10:12: error: reference to 'array' is ambiguous
   10 |         if(array[i]!=-1) return array[i];
      |            ^~~~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 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_pair.h:99:12: note: candidates are: 'template<class _Tp, long unsigned int _Nm> struct std::array'
   99 |     struct array;
      |            ^~~~~
a.cc:6:5: note:                 'int array [100003]'
    6 | int array[nax];
      |     ^~~~~
a.cc:10:33: error: reference to 'array' is ambiguous
   10 |         if(array[i]!=-1) return array[i];
      |                                 ^~~~~
/usr/include/c++/14/bits/stl_pair.h:99:12: note: candidates are: 'template<class _Tp, long unsigned int _Nm> struct std::array'
   99 |     struct array;
      |            ^~~~~
a.cc:6:5: note:                 'int array [100003]'
    6 | int array[nax];
      |     ^~~~~
a.cc:13:16: error: reference to 'array' is ambiguous
   13 |         return array[i]=ans;
      |                ^~~~~
/usr/include/c++/14/bits/stl_pair.h:99:12: note: candidates are: 'template<class _Tp, long unsigned int _Nm> struct std::array'
   99 |     struct array;
      |            ^~~~~
a.cc:6:5: note:                 'int array [100003]'
    6 | int array[nax];
      |     ^~~~~
a.cc: In function 'int main()':
a.cc:19:16: error: reference to 'array' is ambiguous
   19 |         memset(array, -1, sizeof array);
      |                ^~~~~
/usr/include/c++/14/bits/stl_pair.h:99:12: note: candidates are: 'template<class _Tp, long unsigned int _Nm> struct std::array'
   99 |     struct array;
      |            ^~~~~
a.cc:6:5: note:                 'int array [100003]'
    6 | int array[nax];
      |     ^~~~~
a.cc:19:34: error: reference to 'array' is ambiguous
   19 |         memset(array, -1, sizeof array);
      |                                  ^~~~~
/usr/include/c++/14/bits/stl_pair.h:99:12: note: candidates are: 'template<class _Tp, long unsigned int _Nm> struct std::array'
   99 |     struct array;
      |            ^~~~~
a.cc:6:5: note:                 'int array [100003]'
    6 | int array[nax];
      |     ^~~~~
Language: C++

typedef long long int lli;
typedef long double ld;
const int oo = 1e9;
const int mod = 1e9+9;
/*ll gcd(ll x, ll y){return (y ? gcd(y, x%y) : x); }
*ll lcm(ll x, ll y){return x*(y/gcd(x,y));}
*void exEuclid(int a, int b){
	if(b==0){x = 1; y=0; d=a; return ;}
	exEuclid(b, a%b);
	int x1=y;
	int y1=x-(a/b)*y;
	x=x1;
	y=y1;
} 
* */
//===========================================================//
const int nax = 1e5+3;
int n;
int arr[nax];
int a[nax];
int f(int i){
	if (i==n-1) return 0;
	if(arr[i]!=-1) return arr[i];
	int ans = abs(a[i]-a[i+1])+f(i+1);
	if(i!=n-2) ans = min(ans, abs(a[i]-a[i+2])+f(i+2));
	return arr[i]=ans;
}
int main(){
	cin>>n;
	for(int i=0; i<n; i++) cin>>a[i];
	memset(arr, -1, sizeof arr);
	cout<<f(0)<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int f(int)':
a.cc:24:19: error: 'abs' was not declared in this scope; did you mean 'ans'?
   24 |         int ans = abs(a[i]-a[i+1])+f(i+1);
      |                   ^~~
      |                   ans
a.cc:25:26: error: 'min' was not declared in this scope
   25 |         if(i!=n-2) ans = min(ans, abs(a[i]-a[i+2])+f(i+2));
      |                          ^~~
a.cc: In function 'int main()':
a.cc:29:9: error: 'cin' was not declared in this scope
   29 |         cin>>n;
      |         ^~~
a.cc:31:9: error: 'memset' was not declared in this scope
   31 |         memset(arr, -1, sizeof arr);
      |         ^~~~~~
a.cc:1:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
  +++ |+#include <cstring>
    1 | typedef long long int lli;
a.cc:32:9: error: 'cout' was not declared in this scope
   32 |         cout<<f(0)<<endl;
      |         ^~~~
a.cc:32:21: error: 'endl' was not declared in this scope
   32 |         cout<<f(0)<<endl;
      |                     ^~~~
Language: C++

#include<bits/stdc++.h>

template<typename First, typename Second, typename Third>
struct triple {
   First first;
   Second second;
   Third third;
};

using namespace std;

bool comp(pair<int,int>a,pair<int,int>b){
       return a.second < b.second;
}
const int n=1e8;
const int INF=INT_MAX;
int dp[n]={INF};
int res(vector<int>&v){
     dp[0]=0;
     dp[1]=abs(v[1]-v[0]);
    for(int i=2;i<v.size();i++){
        dp[i] = min(dp[i-2]+abs(v[i]-v[i-2]),dp[i-1]+abs(v[i]-v[i-1]));
    }
    return dp[v.size()-1];
}
void solve(){
    int x;
    cin>>x;
    vector<int>v(x);
    for(int i=0;i<x;i++){
        cin>>v[i];
    }
    cout<<res(v);
}

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


Compiler output:
g++: internal compiler error: File size limit exceeded signal terminated program as
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See <file:///usr/share/doc/gcc-14/README.Bugs> for instructions.
Language: C++

#include<iostream>
#include<vector>
using namespace std;
 
int dp[100010];
int n;
int conti;
boolean pasa;
int main(){
     cin >> n;
    vector<int> h(n);
    for(int i=0; i<n; i++){
        conti ++;
        cin >> h[i];
        if(conti > 0){
        conti--;
        pasa = true;
       //printf("prueba")
}
    }
    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:8:1: error: 'boolean' does not name a type; did you mean 'bool'?
    8 | boolean pasa;
      | ^~~~~~~
      | bool
a.cc: In function 'int main()':
a.cc:17:9: error: 'pasa' was not declared in this scope
   17 |         pasa = true;
      |         ^~~~
Language: Java

/**
 *
 * @author Ivan
 */
public class Main {
    
   
    
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        
        int size = scan.nextInt();
        int[] status = new int[size];
        int[] jumps = new int[size];
        
        scan.nextLine();
        String[] input = scan.nextLine().split(" ");
        
        for(int i = 0; i < size; i++) jumps[i] = Integer.parseInt(input[i]);
        
        status[0] = 0;
        status[1] = Math.abs(jumps[0] - jumps[1]);
        
        for(int i = 2; i < size; i++)
            status[i] = Math.min(Math.abs(jumps[i] - jumps[i - 1]) + status[i - 1], Math.abs(jumps[i] - jumps[i - 2]) + status[i - 2]);
        System.out.println(status[size - 1]);
    }
    
}

Compiler output:
Main.java:10: error: cannot find symbol
        Scanner scan = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:10: error: cannot find symbol
        Scanner scan = new Scanner(System.in);
                           ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

import java.util.Scanner;

/**
 *
 * @author German le yo
 */
public class Main{
    
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        
        int N = scan.nextInt();
        int[] state = new int[N];
        int[] stones = new int[N];
        
        scan.nextLine();
        String[] input = scan.nextLine().split(" ");
        
        for(int i = 0; i < N; i++) stones[i] = Integer.parseInt(input[i]);
        
        state[0] = 0;
        state[1] = Math.abs(stones[0] - stones[1]);
        
        for(int i = 2; i < N; i++)
            state[i] = Math.min(Math.abs(stones[i] - stones[i - 1]) + state[i - 1], Math.abs(stones[i] - stones[i - 2]) + state[i - 2]);
        
        System.out.println(state[N - 1]);
        scan.close();
    }
    
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:7:1: error: expected unqualified-id before 'public'
    7 | public class Main{
      | ^~~~~~
Language: C++

#include <iostream>
#include <stdlib.h>
#include <algorithm>
using namespace std;

int main()
{
    int nn;
    cin>>nn;
    int h[nn], hmm[nn];
    int minh;
    for (int i = 0; i<nn;i++) {
        cin>>h[i];
    }

    for (int i = 0; i<nn-1;i++) {
        if(i==0)
        {
            hmm[i+1]=abs(h[i]-h[i+1]);
            hmm[i+2]=abs(h[i]-h[i+2]);
            minh=min(hm[i+1], hmm[i+2]);
        }
        else if(i==nn-2)
        {
            hmm[i+1]=min(abs(h[i]-h[i+1])+hmm[i], hmm[i+1]);
            minh=hmm[i+1];
        }
        else
        {
            hmm[i+1]=min(abs(h[i]-h[i+1])+hmm[i], hmm[i+1]);
            hmm[i+2]=abs(h[i]-h[i+2])+hmm[i];
            minh=min(hmm[i+1], hmm[i+2]);
        }
    }

    cout << minh;
    return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:22: error: 'hm' was not declared in this scope; did you mean 'hmm'?
   21 |             minh=min(hm[i+1], hmm[i+2]);
      |                      ^~
      |                      hmm
Language: Java

import java.util.*;
public class Frog1 {

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

	}

}


Compiler output:
Main.java:2: error: class Frog1 is public, should be declared in a file named Frog1.java
public class Frog1 {
       ^
1 error
Language: Java

import java.util.*;
public class Frog {

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

	}

}


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

import java.util.*;
public class frog {

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

	}

}


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

public class Frog {

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

	}

}


Compiler output:
Main.java:1: error: class Frog is public, should be declared in a file named Frog.java
public class Frog {
       ^
Main.java:5: error: cannot find symbol
		Scanner in = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Frog
Main.java:5: error: cannot find symbol
		Scanner in = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Frog
3 errors
Language: C++

#include <iostream>
using namespace std;

int n,h[maxn],f[maxn];
int main(){   
    scanf("%d",&n);
    for(int i=1;i<=n;i++){
        scanf("%d",&h[i]);
    }
    f[1]=0;
    f[2]=abs(h[1]-h[2]);
    for(int i=3;i<=n;i++){
        f[i]=min(f[i-1]+abs(h[i]-h[i-1]),f[i-2]+abs(h[i]-h[i-2]));
    } 
    printf("%d",f[n]);    
    return 0;
}

Compiler output:
a.cc:4:9: error: 'maxn' was not declared in this scope
    4 | int n,h[maxn],f[maxn];
      |         ^~~~
a.cc:4:17: error: 'maxn' was not declared in this scope
    4 | int n,h[maxn],f[maxn];
      |                 ^~~~
a.cc: In function 'int main()':
a.cc:8:21: error: 'h' was not declared in this scope
    8 |         scanf("%d",&h[i]);
      |                     ^
a.cc:10:5: error: 'f' was not declared in this scope
   10 |     f[1]=0;
      |     ^
a.cc:11:14: error: 'h' was not declared in this scope
   11 |     f[2]=abs(h[1]-h[2]);
      |              ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
const int nax = 1e5+3;
int number;
int dyn[nax];
int a[nax];
int op1(int i){
	iop1 (i==number-1) return 0;
	iop1(dyn[i]!=-1) return dyn[i];
	int res = abs(a[i]-a[i+1])+op1(i+1);
	iop1(i!=number-2) res = min(res, abs(a[i]-a[i+2])+op1(i+2));
	return dyn[i]=res;
}
int main(){
	cin>>number;
	op1or(int i=0; i<number; i++) cin>>a[i];
	memset(dyn, -1, sizeoop1 dyn);
	cout<<op1(0)<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'int op1(int)':
a.cc:8:9: error: 'iop1' was not declared in this scope; did you mean 'op1'?
    8 |         iop1 (i==number-1) return 0;
      |         ^~~~
      |         op1
a.cc: In function 'int main()':
a.cc:16:15: error: expected primary-expression before 'int'
   16 |         op1or(int i=0; i<number; i++) cin>>a[i];
      |               ^~~
a.cc:16:24: error: 'i' was not declared in this scope
   16 |         op1or(int i=0; i<number; i++) cin>>a[i];
      |                        ^
a.cc:17:25: error: 'sizeoop1' was not declared in this scope
   17 |         memset(dyn, -1, sizeoop1 dyn);
      |                         ^~~~~~~~
Language: Java

/******************************************
 *  Author : Atul Anand   
 *  Created On : Sat Feb 08 2020
 *  File : A.java
 *******************************************/

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

public class A{
    
    public static void main(String[] args) throws IOException {
        int N=in.nextInt();
        int h[]=new int[N];
        read(h, N);
        int cost[]=new int[N];
        cost[0]=0;
        cost[1]=Math.abs(h[0]-h[1]);
        for(int i=2;i<N;i++){
            cost[i]=Math.min(cost[i-1]+Math.abs(h[i-1]-h[i]), cost[i-2]+Math.abs(h[i-2]-h[i]));
        }
        println(cost[N-1]);
        in.close();
        out.close();
    }

    static int MIN = Integer.MIN_VALUE;
    static int MAX = Integer.MAX_VALUE;
    static Reader in = new Reader();
    static PrintWriter out = new PrintWriter(System.out);
    static void read(int arr[], int N) throws IOException{ for(int i=0;i<N;i++){ arr[i]=in.nextInt(); } }
    static void read(long arr[], int N) throws IOException{ for(int i=0;i<N;i++){ arr[i]=in.nextLong(); } }
    static void read(String arr[], int N) throws IOException{ for(int i=0;i<N;i++){ arr[i]=in.next(); } }
    static void print(Object O){ out.print(O); }
    static void println(Object O){ out.println(O); }
    static void print(int arr[]){ for(int i=0;i<arr.length;i++){ print(arr[i]+" "); } println(""); }
    static void print(int arr[][]){ for(int i=0;i<arr.length;i++){ print(arr[i]); } }
    static void debug(Object O){ System.out.println(O); }
}

class Reader {
    BufferedReader reader;
    StringTokenizer tokenizer;

    Reader() {
        reader = new BufferedReader(new InputStreamReader(System.in));
        tokenizer = new StringTokenizer("");
    }

    String next() throws IOException {
        while (!tokenizer.hasMoreTokens() ) { tokenizer=new StringTokenizer(reader.readLine()); }
        return tokenizer.nextToken();
    }

    int nextInt() throws IOException { return Integer.parseInt(next()); }
    double nextDouble() throws IOException { return Double.parseDouble(next()); }
    long nextLong() throws IOException { return Long.parseLong(next()); }
    String nextLine() throws IOException { return reader.readLine(); }
    void close() throws IOException { reader.close(); }
}

Compiler output:
Main.java:10: 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> vec(N);
  	vector<int> dp(N,0);
  	for(int i=0;i<N;i++)
    {
      	cin>>vec[i];
    }
  	for(int i=1;i<N;i++)
    {
      dp[i]=max(dp[i-1]+abs(vec[i-1]-vec[i]),i>1?dp[i-2]+abs(vec[i-2]-vec[i]}:0);
                }
                cout<<dp[N-1]<<endl;
                }

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'cin' was not declared in this scope
    4 |         cin>>N;
      |         ^~~
a.cc:5:9: error: 'vector' was not declared in this scope
    5 |         vector<int> vec(N);
      |         ^~~~~~
a.cc:5:16: error: expected primary-expression before 'int'
    5 |         vector<int> vec(N);
      |                ^~~
a.cc:6:16: error: expected primary-expression before 'int'
    6 |         vector<int> dp(N,0);
      |                ^~~
a.cc:9:14: error: 'vec' was not declared in this scope
    9 |         cin>>vec[i];
      |              ^~~
a.cc:13:7: error: 'dp' was not declared in this scope
   13 |       dp[i]=max(dp[i-1]+abs(vec[i-1]-vec[i]),i>1?dp[i-2]+abs(vec[i-2]-vec[i]}:0);
      |       ^~
a.cc:13:29: error: 'vec' was not declared in this scope
   13 |       dp[i]=max(dp[i-1]+abs(vec[i-1]-vec[i]),i>1?dp[i-2]+abs(vec[i-2]-vec[i]}:0);
      |                             ^~~
a.cc:13:25: error: 'abs' was not declared in this scope
   13 |       dp[i]=max(dp[i-1]+abs(vec[i-1]-vec[i]),i>1?dp[i-2]+abs(vec[i-2]-vec[i]}:0);
      |                         ^~~
a.cc:13:77: error: expected ':' before '}' token
   13 |       dp[i]=max(dp[i-1]+abs(vec[i-1]-vec[i]),i>1?dp[i-2]+abs(vec[i-2]-vec[i]}:0);
      |                                                                             ^
      |                                                                             :
a.cc:13:77: error: expected primary-expression before '}' token
a.cc:13:78: error: expected primary-expression before ':' token
   13 |       dp[i]=max(dp[i-1]+abs(vec[i-1]-vec[i]),i>1?dp[i-2]+abs(vec[i-2]-vec[i]}:0);
      |                                                                              ^
a.cc: At global scope:
a.cc:15:17: error: 'cout' does not name a type
   15 |                 cout<<dp[N-1]<<endl;
      |                 ^~~~
a.cc:16:17: error: expected declaration before '}' token
   16 |                 }
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std
  
int mood(int a){
if(a>0)return a;
a=a*(-1);
return a;
}
  
  int main(){
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;i++)cin>>arr[i];
int cost [n];
cost[0]=0;
cost[1]=mood(arr[0]-arr[1]);
for(int i=2;i<n;i++)cost[i]=min( cost[i-1]+mood(arr[i]-arr[i-1])  ,  cost[i-2]+mood(arr[i]-arr[i-2]) );
cout<<cost[n-1];
 
}

Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | int mood(int a){
      | ~~~
Language: C++

#include <bits/stdc++.h>
using namespace std
  
int mood(int a){
if(a>0)return a;
a=a*(-1);
return a;
}
  
  int main(){
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;i++)cin>>arr[i];
int cost [n];
cost[0]=0;
cost[1]=mood(arr[0]-arr[1]);
for(int i=2;i<n;i++)cost[i]=min( cost[i-1]+mood(arr[i]-arr[i-1])  ,  cost[i-2]+mood(arr[i]-arr[i-2]) );
cout<<cost[n-1];

}

Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | int mood(int a){
      | ~~~
Language: Java

public class solution {
  public int minimuCost(int n, int[] hights) {
    if (n == 0 || n == 1) {
      return 0;
    }

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

    return minimumCostMemo[n - 1];
  }
}


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

public void minimuCost(int n, int[] hights) {
  if (n == 0 || n == 1) {
    return 0;
  }
  
  int[] minimumCostMemo = new int[n];
  minimumCostMemo[0] = 0;
  minimumCostMemo[1] = Math.abs(hights[0] - hights[1]);
  for (int i = 2; i < n; i++) {
    minimumCostMemo[i] = Math.min(
      (hights[i] - hights[i-2] + minimumCostMemo[i - 2]),
      (hights[i] - hights[i-1] + minimumCostMemo[i - 1]));
  }
  
  return minimumCostMemo[n - 1];
}

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

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

// 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; }

const long long INF = 1LL << 60;
int N;
long long h[100010];
long long dp[100010];

int main(int argc, char const *argv[]){
	int N; cin >> N;
	for(int i = 0; i < N; i++) cin >> h[i];

	dp[0] = 0;

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

	cout << dp[N-1] << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:19:17: error: 'chmin' was not declared in this scope
   19 |                 chmin(dp[i], dp[i-1] + abs(h[i-1]-h[i]));
      |                 ^~~~~
Language: C++

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)

func readInt() int {
	sc.Scan()
	iv, _ := strconv.Atoi(sc.Text())
	return iv
}

func init() {
	sc.Split(bufio.ScanWords)
}

func abs(x int) int {
	if x < 0 {
		return -x
	}
	return x
}

func min(x, y int) int {
	if x < y {
		return x
	}
	return y
}

func main() {
	n := readInt()
	h := make([]int, n)
	for i := range h {
		h[i] = readInt()
	}

	dp := make([]int, n)
	dp[1] = abs(h[1] - h[0])
	for 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]))
	}
	fmt.Println(dp[n-1])
}


Compiler output:
a.cc:1:1: error: 'package' does not name a type
    1 | package main
      | ^~~~~~~
a.cc:18:1: error: 'func' does not name a type
   18 | func init() {
      | ^~~~
a.cc:22:1: error: 'func' does not name a type
   22 | func abs(x int) int {
      | ^~~~
a.cc:29:1: error: 'func' does not name a type
   29 | func min(x, y int) int {
      | ^~~~
a.cc:36:1: error: 'func' does not name a type
   36 | func main() {
      | ^~~~
Language: C++

#include <bits/stdc++.h>
#define fastio()                  \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0)
#define pb push_back
#define show(x) cout << (#x) << " : " << x << endl;
#define ll long long
#define ld long double

#define mp make_pair
#define ff first
#define ss second
#define pii pair<ll, ll>
#define sq(x) ((x) * (x))
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
const ll MOD = 1000 * 1000 * 1000 + 7;
using namespace std;



ll N;



ll p[100005];


ll dp[100005];


ll rec(ll idx,ll D)
{
  
if (idx+1>D-1)
return 0;  

if (dp[idx]!=INT_MAX)
return dp[idx];
else if (idx==N-2) 
return dp[idx]=min(abs(p[idx]-p[idx+1])+rec(idx+1,D),LLONG_MAX));
else
return dp[idx]=min(abs(p[idx]-p[idx+1])+rec(idx+1,D),abs(p[idx]-p[idx+2])+rec(idx+2,D));



}



int main()
{


fastio();

cin>>N;

for (int i=0;i<N;i++)
cin>>p[i];  

fill(dp,dp+N,INT_MAX);

ll k=rec(0, N);

cout<<k;
    
return 0;
}


Compiler output:
a.cc: In function 'long long int rec(long long int, long long int)':
a.cc:42:64: error: expected ';' before ')' token
   42 | return dp[idx]=min(abs(p[idx]-p[idx+1])+rec(idx+1,D),LLONG_MAX));
      |                                                                ^
      |                                                                ;
a.cc:42:64: error: expected primary-expression before ')' token
a.cc:43:1: error: 'else' without a previous 'if'
   43 | else
      | ^~~~
Language: C++

#include <bits/stdc++.h>
#define fastio()                  \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0)
#define pb push_back
#define show(x) cout << (#x) << " : " << x << endl;
#define ll long long
#define ld long double
#define fill(a, val) memset(a, val, sizeof(a))
#define mp make_pair
#define ff first
#define ss second
#define pii pair<ll, ll>
#define sq(x) ((x) * (x))
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
const ll MOD = 1000 * 1000 * 1000 + 7;
using namespace std;



ll N;



ll p[100005];


ll dp[100001];


ll rec(ll idx,ll D)
{
  
if (idx+1>D-1)
return 0;  

if (dp[idx]==INT_MAX)
return dp[idx]=min(abs(p[idx]-p[idx+1])+rec(idx+1,D),abs(p[idx]-p[idx+2])+rec(idx+2,D));
else
return dp[idx];

}



int main()
{


fastio();

cin>>N;

for (int i=0;i<N;i++)
cin>>p[i];  

fill(dp,dp+N,INT_MAX);

ll k=rec(0, N);

cout<<k;
    
return 0;
}


Compiler output:
a.cc:59:21: error: macro "fill" passed 3 arguments, but takes just 2
   59 | fill(dp,dp+N,INT_MAX);
      |                     ^
a.cc:10:9: note: macro "fill" defined here
   10 | #define fill(a, val) memset(a, val, sizeof(a))
      |         ^~~~
a.cc: In function 'int main()':
a.cc:59:22: error: statement cannot resolve address of overloaded function
   59 | fill(dp,dp+N,INT_MAX);
      |                      ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define M 1000000007
#define U 998244353
#define N 1000005
#define int long long
#define sz(c) (int)c.size()
#define fr first
#define ll long long 
#define sc second
#define pb push_back
#define mp make_pair
#define all(a) (a).begin(),(a).end()
#define rep(i,a,n) for(int i=a ; i<n ; i++)
#define r0 return 0;
#define endl '\n'
#define INF (int)1e15
#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
	std::cerr << name << " : " << arg1 << endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
	const char* comma = strchr(names + 1, ',');std::cerr.write(names, comma - names) << " : " << arg1<<" | ";__f(comma+1, args...);
}
int up[N], down[N];
int n,m;
vector<int> g[N];
int dfs1(int u, int p){
	int ans1 = 1, ans2 = 1;
	
	for(auto v:g[u]){
		if(v!=p){
			ans = (ans*(1+dfs(v,u))%m;
		}
	}
	
	down[u] = ans1;
	return ans1;
}
int vis[N];
int tin[N], tout[N];
int timer = 0;
void dfs(int u, int p){
	tin[u] = ++timer;
	
	for(auto v:g[u]){
		if(v!=p)
			dfs(v,u);
	}
	tout[u] = ++timer;
}
bool is_ancestor(int par, int child){
	if(par == 0) return true;
	if(child == 0) return false;
	if(tin[par]<=tin[child] and tout[par]>=tout[child]) return true;
	return false;
}

int dfs2(int u, int p){
	if(vis[u]) return up[u];
	// trace(u);
	vis[u] = 1;
	int ans = 1;
	ans = (ans*up[p])%m;
	for(auto v:g[p]) if(v!=u && !is_ancestor(v,p)) ans = (ans*(1+down[v]))%m;
	// trace(u,ans,up[p],p);
	up[u] = 1+ans;
	for(auto v:g[u]) if(v!=p) dfs2(v,u);
	return 1+ans;
}
signed main()
{
	ios_base::sync_with_stdio(0);
	int TESTS=1;
	// cin>>TESTS;
	while(TESTS--)
	{   
		cin >> n >> m;
		rep(i,0,n-1){
			int a,b;
			cin >> a >> b;
			g[a].pb(b);
			g[b].pb(a);
		}
		dfs(1,0);
		dfs1(1,0);
		dfs2(1,0);
		rep(i,1,n+1) cout<<(up[i]*down[i])%m<<endl;
	}
}


Compiler output:
a.cc: In function 'long long int dfs1(long long int, long long int)':
a.cc:35:25: error: 'ans' was not declared in this scope; did you mean 'ans2'?
   35 |                         ans = (ans*(1+dfs(v,u))%m;
      |                         ^~~
      |                         ans2
a.cc:35:39: error: 'dfs' was not declared in this scope; did you mean 'ffs'?
   35 |                         ans = (ans*(1+dfs(v,u))%m;
      |                                       ^~~
      |                                       ffs
a.cc:35:50: error: expected ')' before ';' token
   35 |                         ans = (ans*(1+dfs(v,u))%m;
      |                               ~                  ^
      |                                                  )
Language: C++

#include<bits/stdc++.h>
using namespace std;
vector<long> v;
int mem(int curr,int c,int ct)
{
    if(curr<v.size()-1)
    {
        ct+=abs(v[curr]-v[c]);
        c=curr;
    }
    else if(curr==v.size()-1)
    {
        ct+=abs(v[curr]-v[c]);
        return ct;
    }
    else
    {
        ct+=abs(v[v.size()-1]-v[c]);
        return ct;
    }
    return min(mem(curr+1,c,ct),mem(curr+2,c,ct));
}
int main()
{
    int n;
    cin>>n;
    for(long i=0;i<n;i++)
    {
        int x;
        cin>>x;
        v.push_back(x);
    }
    cout<<mem(v,0,0,0);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:15: error: cannot convert 'std::vector<long int>' to 'int'
   33 |     cout<<mem(v,0,0,0);
      |               ^
      |               |
      |               std::vector<long int>
a.cc:4:13: note:   initializing argument 1 of 'int mem(int, int, int)'
    4 | int mem(int curr,int c,int ct)
      |         ~~~~^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
const long MAXN=std::numeric_limits<long>::max(); 

int main()
{
	int n,i,j,k;
	cin>>n;
	int h[n+1];
	int dp[n+1];
	for(i=1;i<=n;i++)
		cin>>h[i];

	dp[0]=0;
	dp[1]=0;
	dp[2]=abs(h[2]-h[1]);
	for(i=3;i<=n;i++)
		dp[i]=min(dp[i-1]+abs(h[i-1]-h[i]),dp[i-2]+abs(h[i-2]-h[i]));
	
	cout<dp[n]<<endl;
	
	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:19: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   20 |         cout<dp[n]<<endl;
      |              ~~~~~^~~~~~
Language: Java

class ATCoderSolution {
    // Frog 1
    public int forg1(int[] stones) {
        int[] dp = new int[stones.length];
        dp[0] = 0;
        dp[1] = Math.abs(stones[1] - stones[0]);

        for (int i = 2; i < stones.length; i++) {
            dp[i] = Math.min(dp[i-1]+Math.abs(stones[i-1]-stones[i]),
            dp[i-2]+Math.abs(stones[i-2]-stones[i]));
        }
        return dp[stones.length-1];
    }

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

        int[] arr = new int[N];
        for (int i = 0; i < N; i++) {
            arr[i] = in.nextInt();
        }
        in.close();

        // call function hear
        ATCoderSolution solution = new ATCoderSolution();
        int ret = solution.forg1(arr);
        System.out.print(ret);
    }
}

Compiler output:
Main.java:16: error: cannot find symbol
        Scanner in = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class ATCoderSolution
Main.java:16: error: cannot find symbol
        Scanner in = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class ATCoderSolution
2 errors
Language: C++

#include<iostream>
#include<vector>
using namespace std;
int main(){
  int n; cin >> n;
  vector<int> v(n), dp(n,1001001001);
  for(int&e:v)cin >> e;
  dp[0] = 0;
  for(int i = 0; i < n; ++i){
   	int n1 = min(n - 1,i + 1), n2 = min(n - 1,i + 2);
    int d1 = abs(v[i] - v[n1]), d2 = abs(v[i] - v[n2];
    dp[n1] = min(dp[n1], dp[i] + d1);
   	dp[n2] = min(dp[n2], dp[i] + d2);
  }
  cout << dp[n - 1] << endl;
  return 0;
}	

Compiler output:
a.cc: In function 'int main()':
a.cc:11:54: error: expected ')' before ';' token
   11 |     int d1 = abs(v[i] - v[n1]), d2 = abs(v[i] - v[n2];
      |                                         ~            ^
      |                                                      )
Language: C++

#include<iostream>
using namespace std;
int main(){
  int n; cin >> n;
  vector<int> v(n), dp(n,1001001001);
  for(int&e:v)cin >> e;
  dp[0] = 0;
  for(int i = 0; i < n; ++i){
   	int n1 = min(n - 1,i + 1), n2 = min(n - 1,i + 2);
    int d1 = abs(v[i] - v[n1]), d2 = abs(v[i] - v[n2];
    dp[n1] = min(dp[n1], dp[i] + d1);
   	dp[n2] = min(dp[n2], dp[i] + d2);
  }
  cout << dp[n - 1] << endl;
  return 0;
}	

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'vector' was not declared in this scope
    5 |   vector<int> v(n), dp(n,1001001001);
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:5:10: error: expected primary-expression before 'int'
    5 |   vector<int> v(n), dp(n,1001001001);
      |          ^~~
a.cc:6:13: error: 'v' was not declared in this scope
    6 |   for(int&e:v)cin >> e;
      |             ^
a.cc:7:3: error: 'dp' was not declared in this scope
    7 |   dp[0] = 0;
      |   ^~
a.cc:10:18: error: 'v' was not declared in this scope
   10 |     int d1 = abs(v[i] - v[n1]), d2 = abs(v[i] - v[n2];
      |                  ^
a.cc:12:38: error: 'd2' was not declared in this scope; did you mean 'd1'?
   12 |         dp[n2] = min(dp[n2], dp[i] + d2);
      |                                      ^~
      |                                      d1
Language: C++

#include <iostream>
#include <stdio.h>
#include <set>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <cmath>
#include <limits>
#include <bitset>
#include <stack>

typedef long long int lli;
#define rep(i,s,N) for(int i=s;i<N;i++)
#define MOD 1000000007
using namespace std;


int main(void)
{
	int N; cin >> N;
	vector<int> h(N); rep(i, 0, N)cin >> h[i];
	vector<lli> dp(N, LLONG_MAX);
	dp[0] = 0; 
	rep(i, 1, N) {
		dp[i] = (dp[i] < (dp[i - 1] + abs(h[i] - h[i - 1]))) ? dp[i] : (dp[i - 1] + abs(h[i] - h[i - 1]));
		if (i > 1)dp[i] = (dp[i] < (dp[i - 2] + abs(h[i] - h[i - 2]))) ? dp[i] : (dp[i - 2] + abs(h[i] - h[i - 2]));
	}
	cout << dp[N - 1] << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:27: error: 'LLONG_MAX' was not declared in this scope
   23 |         vector<lli> dp(N, LLONG_MAX);
      |                           ^~~~~~~~~
a.cc:12:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   11 | #include <stack>
  +++ |+#include <climits>
   12 |
Language: C++

n = int(input())
h = [i for i in map(int, input().split())]

DP = [0, abs(h[0]-h[1])]

for i in range(n-2):
    DP += [min(abs(h[i+2]-h[i])+DP[i], abs(h[i+2]-h[i+1])+DP[i+1])]

print(DP[-1])

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n = int(input())
      | ^
Language: Java


import java.util.Scanner;

public class Frog {

    public static void main(String[] args) throws Exception {
        Scanner stdIn = new Scanner(System.in);
        int N = stdIn.nextInt();
        int heights[] = new int[N];

        for (int i = 0; i < N; i++) {
            int h = stdIn.nextInt();
            heights[i] = h;
        }

        System.out.println(solve(heights));
    }

    private static int solve(int[] h) {
        int[] w = new int[h.length];

        w[0] = 0;
        w[1] = Math.abs(h[1] - h[0]);

        for (int i = 2; i < h.length; i++) {
            w[i] = Math.min(w[i - 1] + Math.abs(h[i - 1] - h[i]), w[i - 2] + Math.abs(h[i - 2] - h[i]));
            //w[i] = Math.min(Math.abs(w[i - 1] - h[i]), Math.abs(w[i - 2] - h[i]));
        }

        return w[w.length - 1];
    }
}


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

#include <vector>
#include <iostream>
#include <unordered_map>

using namespace std;

unordered_map<long long, long long> m;

long long proc(vector<long long> vec, long long n) {
  if (n == 0) {
    return 0;
  } else if (n == 1) {
    return abs(vec[1] - vec[0]);
  }

  if (m.find(n) != m.end()) {
    return m.find(n)->second;
  }

  long long a = abs(vec[n] - vec[n-1]) + proc(vec, n-1);
  long long b = abs(vec[n] - vec[n-2]) + proc(vec, n-2);

.//  cout << n << " " << a << " " << b << endl;

  return min(a, b);
}

int main(void) {
  long long n;

  cin >> n;
  vector<long long> vec;

  for (size_t i = 0; i < n; ++i) {
    long long tmp;
    cin >> tmp;
    vec.push_back(tmp);
  }

  long long r = proc(vec, n-1);

  cout << r << endl;
  return 0;
}


Compiler output:
a.cc: In function 'long long int proc(std::vector<long long int>, long long int)':
a.cc:23:1: error: expected primary-expression before '.' token
   23 | .//  cout << n << " " << a << " " << b << endl;
      | ^
a.cc:25:3: error: expected unqualified-id before 'return'
   25 |   return min(a, b);
      |   ^~~~~~
a.cc:21:55: warning: control reaches end of non-void function [-Wreturn-type]
   21 |   long long b = abs(vec[n] - vec[n-2]) + proc(vec, n-2);
      |                                                       ^