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

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

int main() {
  int64_t n;
  cin>>n;
  vector<int64_t> h(n);
  for(int i=0;i<n;i++){
    cin>>h.at(i);
  }
  if(n==2){
    cout<<h.at(1)-h.at(0)<<endl;
  }
  else{
    vector<int64_t> sa1(n-1);
    vector<int64_t> sa2(n-2);
    vector<int64_t> ans(n);
    for(int i=0;i<n-1;i++){
    sa1.at(i)=h.at(i+1)-h.at(i);
  }
    for(int i=0;i<n-2;i++){
    sa2.at(i)=h.at(i+2)-h.at(i);
  }
    ans.at(0)=0;
    ans.at(1)=sa1.at(0);
    for(int i=2;i<n;i++){
    ans.at(i)=min(ans.at(i-2)+sa2.at(i-2),ans.at(i-1)+sa1.at(i-1));
  }
    cout<<ans.at(i-1);
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:18: error: 'i' was not declared in this scope
   29 |     cout<<ans.at(i-1);
      |                  ^
Language: Java

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

public class Solution {
    static int[] height;
    static int[] dp;
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        height = new int[n+1];
        dp = new int[n+1];
        for(int x = 1; x<=n; x++){
            height[x] = sc.nextInt();
        }
        Arrays.fill(dp, Integer.MAX_VALUE);
        System.out.println(frog(n));
        //System.out.println(Arrays.toString(dp));


    }

    public static int frog(int i){
        if(dp[i] != Integer.MAX_VALUE)
            return dp[i];
        if(i == 2){
            return dp[i] = Math.abs(height[2] - height[1]);
        }
        if(i == 1)
            return dp[i] = 0;
        return dp[i] = Math.min(frog(i-1) + Math.abs(height[i] - height[i-1]), frog(i-2)+ Math.abs(height[i] - height[i-2]));

    }
}


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

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

public class Solution {
    static int[] height;
    static int[] dp;
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        height = new int[n+1];
        dp = new int[n+1];
        for(int x = 1; x<=n; x++){
            height[x] = sc.nextInt();
        }
        Arrays.fill(dp, Integer.MAX_VALUE);
        System.out.println(frog(n));
        //System.out.println(Arrays.toString(dp));


    }

    public static int frog(int i){
        if(i == 2){
            return dp[i] = Math.abs(height[2] - height[1]);
        }
        if(i == 1)
            return dp[i] = 0;
        return dp[i] = Math.min(frog(i-1) + Math.abs(height[i] - height[i-1]), frog(i-2)+ Math.abs(height[i] - height[i-2]));

    }
}


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

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

public class Solution {
    static int[] height;
    static int[] dp;
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        height = new int[n+1];
        dp = new int[n+1];
        for(int x = 1; x<=n; x++){
            height[x] = sc.nextInt();
        }
        Arrays.fill(dp, Integer.MAX_VALUE);
        System.out.println(frog(n));
        //System.out.println(Arrays.toString(dp));


    }

    public static int frog(int i){
        if(i == 2){
            return dp[i] = Math.abs(height[2] - height[1]);
        }
        if(i == 1)
            return dp[i] = 0;
        return dp[i] = Math.min(frog(i-1) + Math.abs(height[i] - height[i-1]), frog(i-2)+ Math.abs(height[i] - height[i-2]));

    }
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.io.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.*;
      | ^~~~~~
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 Solution {
      | ^~~~~~
Language: C++

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

#define pb push_back
#define mp make_pair
#define ft first
#define sd second
#define snd sd.ft
#define td sd.sd
#define debug(x) cout<<"### x is: "<<x<<"###"<<endl
#define all(a) a.begin(),a.end()
 
#define ninf -1000000000
#define pinf 1000000000

typedef long long int ll; 
const ll MOD= 1e9+7;
typedef vector<pair<ll,ll> > vecpair;
typedef vector<pair<ll, pair<ll,ll> > > vecpair3;
typedef pair<ll, ll> pi; 

//double mei ye line cout << fixed << setprecision(10); kam mei le 

ll power(ll a, ll b) {ll ret=1;while(b) {if(b&1) ret*=a;a*=a;if(ret>=MOD) ret%=MOD;if(a>=MOD) a%=MOD;b>>=1;}return ret;}

struct subset // disjoint set use subsets.claer and subsets.resize............
{
	int parent,sz;
};
vector< subset> subsets;
int find( int i)
{
    if (subsets[i].parent != i)
        subsets[i].parent = find(subsets[i].parent);
 
    return subsets[i].parent;
}
void uniona(int x, int y){
	if( x == y)
	return ;
    int xroot = find( x);
    int yroot = find( y);
    if (subsets[xroot].sz < subsets[yroot].sz){
        subsets[xroot].parent = yroot;
        subsets[yroot].sz += subsets[xroot].sz;
    }
    else{
        subsets[yroot].parent = xroot;
        subsets[xroot].sz += subsets[yroot].sz;
    }
}
//..............................

int n;
int h[100005],dp[100005]={-1};
ll solve(ll i)
{
	if(i>n)
      return pinf;
  else if(i==n)
    	return 0;
  else if(dp[i]!=-1)
    return dp[i];
  dp[i]=min(abs(h[i]-h[i+1])+solve(i+1),abs(h[i]-h[i+2])+solve(i+2))
    return dp[i];
}
int main()
{
	std:ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	
	cin >> n;
  	for(int i=1;i<=n;i++)
    {
    	cin >> h[i];
    }
  	int ans=solve(1);
	cout << dp[1] << " " << ans;
	return 0;
}

Compiler output:
a.cc: In function 'll solve(ll)':
a.cc:64:69: error: expected ';' before 'return'
   64 |   dp[i]=min(abs(h[i]-h[i+1])+solve(i+1),abs(h[i]-h[i+2])+solve(i+2))
      |                                                                     ^
      |                                                                     ;
   65 |     return dp[i];
      |     ~~~~~~                                                           
a.cc:64:8: warning: control reaches end of non-void function [-Wreturn-type]
   64 |   dp[i]=min(abs(h[i]-h[i+1])+solve(i+1),abs(h[i]-h[i+2])+solve(i+2))
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<iostream>
#include<vector>
#include<cstdlib>

using namespace std;

int main() {

	int N;
	cin >> N;

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

	vector<int> s(N, INT_MAX);
	s[0] = 0;

	for (int i = 0; i < N - 1; i++) {
		int a = s[i] + abs(h[i] - h[i + 1]);
		if (a < s[i + 1]) s[i + 1] = a;
		
		if (i == N - 2) break;

		a = s[i] + abs(h[i] - h[i + 2]);
		if (a < s[i + 2]) s[i + 2] = a;
	}

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

Compiler output:
a.cc: In function 'int main()':
a.cc:16:26: error: 'INT_MAX' was not declared in this scope
   16 |         vector<int> s(N, INT_MAX);
      |                          ^~~~~~~
a.cc:4:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    3 | #include<cstdlib>
  +++ |+#include <climits>
    4 |
Language: C++

#include <bits/stdc++.h>
#define mod 1000000007
#define ll long long
using namespace std;
ll gcd(ll a,ll b,ll &x,ll &y) {
    if(a==0) {
        x = 0;y=1;
        return b;
    }
    ll x1,y1;
    ll g = gcd(b%a,a,x1,y1);
    x = y1 - (b/a)*x1;
    y = x1;
    return g;
}
long long  C(long long int n,long long int r)
{
  if(r>n){
 	        return 0;
 	    }
 	    if(r>n-r)
 	        r = n-r;
 	    ll a=1,b=1;
 	    for(int i=0;i<r;i++) {
 	        a = (a*(n-i))%mod;
 	        b = (b*(i+1))%mod;
 	    }
 	    ll x,y;
 	    gcd(b,mod,x,y);
 	    ll res = (a*(x%mod+mod)%mod)%mod;
 	    return res;
}
int main()
{
long long  int n,k;
  cin>>k>>n;
  long long int A[k],s=0;
  for(int i=0;i<k;i++)
  {
    cin>>A[i];
    s+=A[i];
  }
  long long int ans=0;
  long long int a=n+k-1;
  long long int b=k-1;
  ans=(ans+C(a,b)%mod)%mod;
//cout<<ans<<" ";
  if(s<n)
  {
    ans=0;
  }
  else
  {
    for(int i=0;i<k;i++)
  {
    ans=(ans-C(a-A[i]-1,b)%mod)%mod;
    //cout<<C(a-A[i]-1,b)<<" ";
  }
  }
  cout<<max(0,ans%mod)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:60:12: error: no matching function for call to 'max(int, long long int)'
   60 |   cout<<max(0,ans%mod)<<endl;
      |         ~~~^~~~~~~~~~~
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:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:60:12: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   60 |   cout<<max(0,ans%mod)<<endl;
      |         ~~~^~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:60:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   60 |   cout<<max(0,ans%mod)<<endl;
      |         ~~~^~~~~~~~~~~
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
#include<vector>
#include<map>
#include<cmath>
#include<string>
#include<algorithm>
#include<stack>
#include<queue>
#include<iomanip>
#include<set>
#include<stdio.h>
#include<string.h>

#define ll long long 
#define ull unsigned long long
#define ld long double
#define all(vec) (vec).begin(),(vec).end()
#define allr(vec) (vec).rbegin(),(vec).rend()
#define viewVec(vec) for(auto i:(vec))cout << i << " ";cout << endl
using namespace std;

ll  a, b, c, d, e, f, g, h, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z;
ll  mx = 0, mn = 1e18, sum = 0, cnt = 0, avr = 0, index = -1;
const ll M = 100000000;

map<ll, ll>mp;
map<ll, ll>first;
map<ll, ll>last;
vector<ll>vec;
vector<int>res;
//                                                   gcd/lcm--fuckin--long long

ll dp[100005];
int solved[100005];

ll solve(int i, int ans)
{
	if (i == n-1)
	{
		return ans;
	}
	if (i == n - 2)
	{
		return ans + abs(vec[i] - vec[i + 1]);
	}
	if (!solved[i])
	{
		dp[i] = ans + min(solve(i + 1, abs(vec[i] - vec[i + 1])), solve(i + 2, abs(vec[i] - vec[i + 2])));
		solved[i] = 1;
	}
	return dp[i];
}

int main()
{
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		cin >> x;
		vec.push_back(x);
	}

	cout << solve(0, 0) << endl;
	return 0;
}

Compiler output:
a.cc:24:51: error: 'long long int index' redeclared as different kind of entity
   24 | ll  mx = 0, mn = 1e18, sum = 0, cnt = 0, avr = 0, index = -1;
      |                                                   ^~~~~
In file included from /usr/include/string.h:462,
                 from a.cc:13:
/usr/include/strings.h:50:20: note: previous declaration 'const char* index(const char*, int)'
   50 | extern const char *index (const char *__s, int __c)
      |                    ^~~~~
Language: C++

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

int main()
{
  long long int int n;
  cin >> n;
  vector<long long int> dp(n), input(n);
  fill(dp.begin(), dp.end(), 1e7);
  for (long long int i = 0; i < n; i++)
    cin >> input[i];

  dp[0] = 0;
  dp[1] = abs(input[0] - input[1]);
  if (n == 2)
  {
    cout << dp[1];
    return 0;
  }
  for (long long int i = 2; i < n; i++)
  {
    dp[i] = min(dp[i], min(dp[i - 2] + abs(input[i] - input[i - 2]), dp[i - 1] + abs(input[i] - input[i - 1])));
  }
  cout << dp[n - 1];
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: two or more data types in declaration of 'n'
    9 |   long long int int n;
      |             ^~~
a.cc:10:10: error: 'n' was not declared in this scope; did you mean 'yn'?
   10 |   cin >> n;
      |          ^
      |          yn
Language: C++

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

int main()
{
  long int int n;
  cin >> n;
  vector<long long int> dp(n), input(n);
  fill(dp.begin(), dp.end(), 1e7);
  for (long long int i = 0; i < n; i++)
    cin >> input[i];

  dp[0] = 0;
  dp[1] = abs(input[0] - input[1]);
  if (n == 2)
  {
    cout << dp[1];
    return 0;
  }
  for (long long int i = 2; i < n; i++)
  {
    dp[i] = min(dp[i], min(dp[i - 2] + abs(input[i] - input[i - 2]), dp[i - 1] + abs(input[i] - input[i - 1])));
  }
  cout << dp[n - 1];
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: two or more data types in declaration of 'n'
    9 |   long int int n;
      |        ^~~
a.cc:10:10: error: 'n' was not declared in this scope; did you mean 'yn'?
   10 |   cin >> n;
      |          ^
      |          yn
Language: Java

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

public class Frog1 {

	
	public static int[] readInts(String cad) {
		String read[] = cad.split(" ");
		int res[] = new int[read.length];
		for (int i = 0; i < read.length; i++) {
			res[i] = Integer.parseInt(read[i]);
		}
		return res;
	}
	
	public static void main(String[] args) throws IOException {
		StringBuilder out = new StringBuilder();
		BufferedReader in;
		
			in = new BufferedReader(new InputStreamReader(System.in));

		int n = Integer.parseInt(in.readLine());
		int hi[] = readInts(in.readLine());
		int dp[] = new int[n];
		
		dp[0] = 0;
		dp[1] = Math.abs(hi[0] - hi[1]);
		for( int i = 2; i < n; i++ ) 
			dp[i] = Math.min(Math.abs(hi[i-1] - hi[i]) + dp[i-1], Math.abs(hi[i-2] - hi[i]) + dp[i-2]);
		
		System.out.print(dp[n-1]);

	}
	
}


Compiler output:
Main.java:7: 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.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Frog1 {

	
	public static int[] readInts(String cad) {
		String read[] = cad.split(" ");
		int res[] = new int[read.length];
		for (int i = 0; i < read.length; i++) {
			res[i] = Integer.parseInt(read[i]);
		}
		return res;
	}
	
	public static void main(String[] args) throws IOException {
		StringBuilder out = new StringBuilder();
		BufferedReader in;
		in = new BufferedReader(new InputStreamReader(System.in));

		int n = Integer.parseInt(in.readLine());
		int hi[] = readInts(in.readLine());
		int dp[] = new int[n];
		
		dp[0] = 0;
		dp[1] = Math.abs(hi[0] - hi[1]);
		for( int i = 2; i < n; i++ ) 
			dp[i] = Math.min(Math.abs(hi[i-1] - hi[i]) + dp[i-1], Math.abs(hi[i-2] - hi[i]) + dp[i-2]);
		
		System.out.print(dp[n-1]);

	}
	
}


Compiler output:
Main.java:7: error: class Frog1 is public, should be declared in a file named Frog1.java
public class Frog1 {
       ^
1 error
Language: Java



import java.util.Arrays;
import java.util.Scanner;

public class A {

	private static Scanner in;
	private static int n;
	private static int[] h;
	private static long[] dp;
	
	public static void main(String[] args) {
		in = new Scanner(System.in);
		n = in.nextInt();
		h = new int[n];
		
		for(int i=0; i<n; i++) {
			h[i] = in.nextInt();
		}
		dp = new long[n+1];
		
		Arrays.fill(dp, -1);
		
		System.out.println(solve(0));
		

	}
	
	private static long solve(int i) {
		if (i==n-1) return 0;
		
		if (dp[i]!=-1) return dp[i];
		
		return dp[i]=Math.min(Math.abs(h[i]-h[i+1])+solve(i+1), 
				(i+2<n?Math.abs(h[i]-h[i+2])+solve(i+2):(long)1e15));
	}

}


Compiler output:
Main.java:6: error: class A is public, should be declared in a file named A.java
public class A {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  if(n==1){
    cout<<0;
    return;
  }
  int h1, h2, prev1, prev2, curr;
  prev2 = 0;
  int y;
  cin>>h2>>h1;
  prev1 = abs(h2-h1);
  if(n==2){
    cout<<prev1;
    return;
  }
  while(n>2){
    cin>>y;
    curr = min(prev1+abs(y-h1), prev2+abs(y-h2));
    h2 = h1;
    h1= y;
    prev2 = prev1;
    prev1 = curr;
    n--;  
  }
  
  cout<<curr; 
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
    8 |     return;
      |     ^~~~~~
a.cc:17:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   17 |     return;
      |     ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  if(n==1){
    cout<<0;
    return;
  }
  int h1, h2, prev1, prev2, curr;
  prev2 = 0;
  int y;
  cin>>h2>>h1;
  prev1 = abs(h2-h1);
  if(n==2){
    cout<<prev1;
    return;
  }
  while(n>2){
    cin>>y;
    curr = min(prev1+abs(y-h1), prev2+abs(y-h2));
    h2 = h1;
    h1= y;
    prev2 = prev1;
    prev1 = curr;
    n--;  
  }
  
  cout<<curr; 
  
}
#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  int h1, h2, prev1, prev2, curr;
  prev2 = 0;
  int y;
  cin>>h2>>h1;
  prev1 = abs(h2-h1);
  while(n>2){
    cin>>y;
    curr = min(prev1+abs(y-h1), prev2+abs(y-h2));
    h2 = h1;
    h1= y;
    prev2 = prev1;
    prev1 = curr;
    n--;  
  }
  
  cout<<curr; 
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
    8 |     return;
      |     ^~~~~~
a.cc:17:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   17 |     return;
      |     ^~~~~~
a.cc: At global scope:
a.cc:34:5: error: redefinition of 'int main()'
   34 | int main(){
      |     ^~~~
a.cc:3:5: note: 'int main()' previously defined here
    3 | int main(){
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
const int N = 100005;
#define ll long long
int arr[N];
int dp[N];

int ABS(int a){return max(a,-a)};

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

  ios::sync_with_stdio(0);
  cin.tie(0);

  int t;
  cin>>t;

  while(t--)
  {
    int n;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
      cin>>arr[i];
      dp[i]=INT_MAX;
    }

    dp[1]=0;
    for(int i=1;i<=n;i++)
    {
      if(i+1<=n)
        dp[i+1] = min(dp[i+1],ABS(arr[i]-arr[i+1]));
      if(i+2<=n)
        dp[i+2] = min(dp[i+2],ABS(arr[i]-arr[i+2]));
    }

    cout<<dp[n];
  }

}

Compiler output:
a.cc: In function 'int ABS(int)':
a.cc:8:32: error: expected ';' before '}' token
    8 | int ABS(int a){return max(a,-a)};
      |                                ^
      |                                ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define all(v) v.begin(),v.end()
#define fio() ios::sync_with_stdio(0);cin.tie(0);
#define forn(i,a,n) for(ll i=a;i<n;i++)
#define fornn(i,a,n) for(ll i=a;i<=n;i++)
#define pb push_back
#define MAXN 100005LL
#define INF 1000000005LL
inline void solve(){
	ll n;
	cin>>n;
	ll h[n];
	for(ll i=0;i<n;i++)
		cin>>h[i];
	ll dp[n];
	dp[0]=0;
	dp[1]=abs(h[1]-h[0]);
	for(ll 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];
}
int main(){
	#ifndef ONLINE_JUDGE
	#freopen("output.txt","w",stdout);
	#freopen("input.txt","r",stdin);
	#endif
	fio();
	ll t=1;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

Compiler output:
a.cc:27:10: error: invalid preprocessing directive #freopen
   27 |         #freopen("output.txt","w",stdout);
      |          ^~~~~~~
a.cc:28:10: error: invalid preprocessing directive #freopen
   28 |         #freopen("input.txt","r",stdin);
      |          ^~~~~~~
Language: C++

#include <iostream>
using namespace std;
const long long INF = 1LL << 60;
int N;
long long H[100010];
long long dp[100010];
long long rec(int i){
  if (dp[i]<INF)return dp[i];
  if (i==0)return 0;
  long long res=INF;
  if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
  if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
  return dp[i]=res;
}
int main(){
  int N;cin>>N;
  long long H[N];
  for (int i=0;i<N;++i){
    cin>>H[i];
  }
  long long dp[N];
  dp[0]=0;
  for (int i=1;i<N;++i){
    dp[i]=INF;
  }
  cout<<rec(n-1)<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:13: error: 'n' was not declared in this scope
   26 |   cout<<rec(n-1)<<endl;
      |             ^
Language: C++

#include <iostream>
using namespace std;
const long long INF = 1LL << 60;
int N;
long long H[100010];

long long rec(int i){
  if (dp[i]<INF)return dp[i];
  if (i==0)return 0;
  long long res=INF;
  if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
  if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
  return dp[i]=res;
}
int main(){
  int N;cin>>N;
  long long H[N];
  for (int i=0;i<N;++i){
    cin>>H[i];
  }
  long long dp[N];
  dp[0]=0;
  for (int i=1;i<N;++i){
    dp[i]=INF;
  }
  cout<<rec(n-1)<<endl;
}


Compiler output:
a.cc: In function 'long long int rec(int)':
a.cc:8:7: error: 'dp' was not declared in this scope
    8 |   if (dp[i]<INF)return dp[i];
      |       ^~
a.cc:11:7: error: 'dp' was not declared in this scope
   11 |   if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
      |       ^~
a.cc:12:7: error: 'dp' was not declared in this scope
   12 |   if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
      |       ^~
a.cc:13:10: error: 'dp' was not declared in this scope
   13 |   return dp[i]=res;
      |          ^~
a.cc: In function 'int main()':
a.cc:26:13: error: 'n' was not declared in this scope
   26 |   cout<<rec(n-1)<<endl;
      |             ^
Language: C++

#include <iostream>
using namespace std;
const long long INF = 1LL << 60;
long long rec(int i){
  if (dp[i]<INF)return dp[i];
  if (i==0)return 0;
  long long res=INF;
  if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
  if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
  return dp[i]=res;
}
int main(){
  int N;cin>>N;
  long long H[N];
  for (int i=0;i<N;++i){
    cin>>H[i];
  }
  long long dp[N];
  dp[0]=0;
  for (int i=1;i<N;++i){
    dp[i]=INF;
  }
  for (int i=0;i<N;++i){
    if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
    if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
  }
  cout<<dp[N-1]<<endl;
}


Compiler output:
a.cc: In function 'long long int rec(int)':
a.cc:5:7: error: 'dp' was not declared in this scope
    5 |   if (dp[i]<INF)return dp[i];
      |       ^~
a.cc:8:7: error: 'dp' was not declared in this scope
    8 |   if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
      |       ^~
a.cc:8:25: error: 'H' was not declared in this scope
    8 |   if (dp[i+1]>dp[i]+abs(H[i]-H[i+1]))dp[i+1]=dp[i]+abs(H[i]-H[i+1]);
      |                         ^
a.cc:9:7: error: 'dp' was not declared in this scope
    9 |   if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
      |       ^~
a.cc:9:25: error: 'H' was not declared in this scope
    9 |   if (dp[i+2]>dp[i]+abs(H[i]-H[i+2]))dp[i+2]=dp[i]+abs(H[i]-H[i+2]);
      |                         ^
a.cc:10:10: error: 'dp' was not declared in this scope
   10 |   return dp[i]=res;
      |          ^~
Language: C++

#include <iostream>
using namespace std;
int main(){
  int N;cin>>N;
  int H[N];
  for (int i=0;i<N;++i){
    cin>>H[i];
  }
  int dp[N];
  for (int i=0;i<N;++i){
    H[i]=1000000000;
  }
  for (int i=0;i<N;++i){
    if (dp[i+1]>dp[i]+H[i])dp[i+1]=dp[i]+H[i];
    if (i!=){
      if (dp[i+2]>dp[i]+H[i+1])dp[i+2]=dp[i]+H[i+1];
    }
  }
  cout<<dp[N-1]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:12: error: expected primary-expression before ')' token
   15 |     if (i!=){
      |            ^
Language: Java

import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;

public class Main {
    private static final int INF = (int) 1e9 + 5;

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        PrintWriter writer = new PrintWriter(System.out);
        TaskA.solve2(scanner, writer);
        scanner.close();
        writer.close();
    }
}

public class TaskA {
    public static void solve(Scanner scanner, PrintWriter writer) {
        int n = scanner.nextInt();
        int[] stones = new int[n];
        for (int i = 0; i < n; i++) {
            stones[i] = scanner.nextInt();
        }


        int[] dp = new int[n];
        for (int i = 1; i < n; i++) {
            dp[i] = Math.min(dp[i - 1] + Math.abs(stones[i] - stones[i - 1]), (i - 2 < 0) ? Integer.MAX_VALUE : dp[i - 2] + Math.abs(stones[i] - stones[i - 2]));
        }

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

    public static void solve2(Scanner scanner, PrintWriter writer) {
        int n = scanner.nextInt();
        int[] stones = new int[n];
        for (int i = 0; i < n; i++) {
            stones[i] = scanner.nextInt();
        }

        int[] dp = new int[n];
        Arrays.fill(dp, Integer.MAX_VALUE);
        dp[0] = 0;

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

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

Compiler output:
Main.java:17: error: class TaskA is public, should be declared in a file named TaskA.java
public class TaskA {
       ^
1 error
Language: Java

import java.io.PrintWriter;
import java.util.Scanner;

public class JavaClasses {
    private static final int INF = (int) 1e9 + 5;

    private static void solve(Scanner scanner, PrintWriter writer) {
        int n = scanner.nextInt();
        int[] stones = new int[n];
        for (int i = 0; i < n; i++) {
            stones[i] = scanner.nextInt();
        }


        int[] dp = new int[n];
        for (int i = 1; i < n; i++) {
            dp[i] = Math.min(dp[i - 1] + Math.abs(stones[i] - stones[i - 1]), (i - 2 < 0) ? Integer.MAX_VALUE : dp[i - 2] + Math.abs(stones[i] - stones[i - 2]));
        }

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

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        PrintWriter writer = new PrintWriter(System.out);
        solve(scanner, writer);
        scanner.close();
        writer.close();
    }
}


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

import java.util.Arrays;
import java.util.Scanner;

public class Forg1 {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int t = sc.nextInt();
    while (t-- > 0){
      int n = sc.nextInt();
      int[] h = new int[n + 1];
      for (int i = 1; i <= n; i++) h[i] = sc.nextInt();
      int[] dp = new int[n + 1];
      Arrays.fill(dp,1,n + 1, Integer.MAX_VALUE);
      dp[1] = 0;
      for (int i = 1; i < n; i++){
        if (i + 2 <= n) {
          dp[i + 2] = Math.min(dp[i + 2], dp[i] + Math.abs(h[i] - h[i + 2]));
        }
        dp[i + 1] = Math.min(dp[i + 1], dp[i] + Math.abs(h[i] - h[i + 1]));

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


Compiler output:
Main.java:4: error: class Forg1 is public, should be declared in a file named Forg1.java
public class Forg1 {
       ^
1 error
Language: C++

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

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

	long long dp[n+1];
	dp[0]=0;
	if(n<0){
      cout<<"0"<<endl;
    else{
		for(int i=1;i<n;i++){
			dp[i]=min(dp[i-1]+abs(a[i]-a[i-1]),abs(a[i]-a[i-2])+dp[i-2]);
    	}
	
	cout<<dp[n-1]<<endl;
    }

}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:5: error: expected '}' before 'else'
   16 |     else{
      |     ^~~~
a.cc:14:16: note: to match this '{'
   14 |         if(n<0){
      |                ^
Language: C++

#include<iostream>
#include<bits/stdc++.h>
#define MOD 1000000007
using namespace std;
int main()
 {
	
	
	    int n;
	    cin>>n;
	    int arr[n];
	    for(int i=0; i<n; i++){
	        cin>>arr[i];
	    }
	    if(n<2){
	    	cout<<"0"<<endl;
		}
	    else{
			long long int dp[n]={0};
		    
		    dp[0]=0;
		    dp[1]=abs(arr[1]-arr[0]);
		    
		    for(int i=2; i<n; i++){
		    	int n1 = dp[i-2] + abs(vec[i-2] - vec[i]);
		        int n2 = dp[i-1] + abs(vec[i-1] - vec[i]);
		        dp[i] = min(n1, n2);
			}
			
			cout<<dp[n-1]<<endl;
		}
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:48: error: 'vec' was not declared in this scope
   25 |                         int n1 = dp[i-2] + abs(vec[i-2] - vec[i]);
      |                                                ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < (n); ++i)
typedef long long ll;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1;} return 0;}
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1;} return 0;}
const ll INF = 1LL << 60;

int main(){
	int n;
	cin >> n;
	ll h[100010];
	ll dp[100010];

	rep(i, n) cin >> h[i];
	rep(i, n) dp[i] = INF;
	dp[0] = 0;

	rep(i, n){
		chmin((dp[i], dp[i-1] + abs(h[i] - h[i-1])));
		if(i > 1) chmin(dp[i],dp[i-2]+ abs(h[i] - h[i-2]));
	}
	cout << dp[n-1] << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:22: error: no matching function for call to 'chmin(ll)'
   20 |                 chmin((dp[i], dp[i-1] + abs(h[i] - h[i-1])));
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:5:31: note: candidate: 'template<class T> bool chmin(T&, T)'
    5 | template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1;} return 0;}
      |                               ^~~~~
a.cc:5:31: note:   candidate expects 2 arguments, 1 provided
Language: C++

#include<iostream>
using namespace std;

int diff(int a,int b)
{
  if(a>b)
    return a-b;
  return b-a;
}

int min(int a,int b)
{
  if(a<b)
    return a;
  return b;
}

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

Compiler output:
a.cc: In function 'int total_cost(int*, int)':
a.cc:26:80: error: expected ')' before ';' token
   26 |      sol[i] =min( sol[i-2]+diff(arr[i-2],arr[i]),sol[i-1]+diff(arr[i-1],arr[i]);
      |                 ~                                                              ^
      |                                                                                )
Language: C++

#include<iostream>
using namespace std;

int diff(int a,int b)
{
  if(a>b)
    return a-b;
  return b-a;
}

int min(int a,int b)
{
  return a>b??b::a;
}

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

Compiler output:
a.cc: In function 'int min(int, int)':
a.cc:13:14: error: expected primary-expression before '?' token
   13 |   return a>b??b::a;
      |              ^
a.cc:13:15: error: 'b' is not a class, namespace, or enumeration
   13 |   return a>b??b::a;
      |               ^
a.cc:13:19: error: expected ':' before ';' token
   13 |   return a>b??b::a;
      |                   ^
      |                   :
a.cc:13:19: error: expected primary-expression before ';' token
a.cc:13:19: error: expected ':' before ';' token
   13 |   return a>b??b::a;
      |                   ^
      |                   :
a.cc:13:19: error: expected primary-expression before ';' token
a.cc: In function 'int total_cost(int*, int)':
a.cc:24:80: error: expected ')' before ';' token
   24 |      sol[i] =min( sol[i-2]+diff(arr[i-2],arr[i]),sol[i-1]+diff(arr[i-1],arr[i]);
      |                 ~                                                              ^
      |                                                                                )
Language: C++

#include<iostream>
#include<vector>

using namespace std;
vector<int> a;
int n;
const int inf = INT_MAX;
vector<int> dp;
int go(int i) {
    if (i == n-1) {
        return 0;
    }

    int ans = dp[i];
    if (ans != -1) {
        return ans;
    }

    int x = inf, y = inf;
    if (i+1 < n)
        x = go(i+1) + abs(a[i] - a[i+1]);
    if (i+2 < n)
        y = go(i+2) + abs(a[i] - a[i+2]);
    ans = min(x, y);
    dp[i] = ans;
    return ans;
}

int main() {

    cin >> n;
    a.resize(n);
    dp.resize(n+1, -1);
    for (int i = 0 ; i < n ; ++i) {
        cin >> a[i];
    }

    cout  << go(0) << endl;
    return 0;
}


Compiler output:
a.cc:7:17: error: 'INT_MAX' was not declared in this scope
    7 | const int inf = INT_MAX;
      |                 ^~~~~~~
a.cc:3:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    2 | #include<vector>
  +++ |+#include <climits>
    3 |
Language: C++

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

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

}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namsespace'
    2 | using namsespace std;
      |       ^~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:10: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |    int n;cin>>n;
      |          ^~~
      |          std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:3: error: 'vector' was not declared in this scope
   10 |   vector<int>dp(n,INT_MAX);
      |   ^~~~~~
a.cc:10:3: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53:
/usr/include/c++/14/bits/stl_vector.h:428:11: note:   'std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/14/vector:93:13: note:   'std::pmr::vector'
   93 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
a.cc:10:10: error: expected primary-expression before 'int'
   10 |   vector<int>dp(n,INT_MAX);
      |          ^~~
a.cc:11:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   11 |   dp[0]=0;
      |   ^~
      |   dup
a.cc:15:13: error: 'min' was not declared in this scope; did you mean 'std::min'?
   15 |     dp[i+1]=min(dp[i+1],dp[i]+abs(h[i+1]-h[i]));
      |             ^~~
      |             std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:17:13: error: 'min' was not declared in this scope; did you mean 'std::min'?
   17 |     dp[i+2]=min(dp[i+2],dp[i]+abs(h[i+2]-h[i]));
      |             ^~~
      |             std::min
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:20:2: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   20 |  cout<<dp[n-1];
      |  ^~~~
      |  std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: Java

import java.util.Scanner;

public class Frog1 {


    public static int totalCostIncurred(int[] height) {
        return totalCostHelper(0, height);
    }

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

        int cost1 = Math.abs(height[i+1]-height[i]) + totalCostHelper(i+1,height);
        int cost2 = i+2 < height.length ? Math.abs(height[i+2]-height[i]) + totalCostHelper(i+2,height): Integer.MAX_VALUE;
        return Math.min(cost1, cost2);
    }

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

        for(int i=0; i<height.length; i++)
            height[i] = scanner.nextInt();
        System.out.println(totalCostIncurred(height));
    }
}


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

#include<bits/stdc++.h>

#define ll long long 
using namespace std;



main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	map<ll,ll> mp;
	multimap<ll,ll>mp1;
	ll test,n,i,j,area,flag=0,a[100000*2],d=0,m,amt,r,a2[100000*2],x,y,k,K,I,m1,m2,m3,o,o1,o2,o3,dp[100000*2],dp2[100000*2];
	
	cin>>n;
	for(i=1;i<=n;++i)
		cin>>a[i];
	
	dp[0]=dp[1]=0;
	
	for(i=2;i<=n;++i){
		dp[i]=min(dp[i-1]+abs(a[i-1]-a[i]),dp[i-2]+abs(a[i-2]-a[i]));}
		
	cout<<dp[n]<<endl;
	
	}}
		
	





Compiler output:
a.cc:8:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | main(){
      | ^~~~
a.cc:26:10: error: expected declaration before '}' token
   26 |         }}
      |          ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
    int n;
    cin>>n
    int arr[n];
    for(int i=0;i<n;i++)    cin>>arr[i];
    int prev=arr[0];
    int ans=0;
    for(int i=1;i<n-1;i++){
        int yes=abs(prev-arr[i]) + abs(arr[i]-arr[i+1]);
        int no=abs(prev-arr[i+1]);
        if(yes < no)ans+=yes;
        else ans+=no;
        prev=arr[i+1];
    }
    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: expected ';' before 'int'
    7 |     cin>>n
      |           ^
      |           ;
    8 |     int arr[n];
      |     ~~~    
a.cc:9:34: error: 'arr' was not declared in this scope
    9 |     for(int i=0;i<n;i++)    cin>>arr[i];
      |                                  ^~~
a.cc:10:14: error: 'arr' was not declared in this scope
   10 |     int prev=arr[0];
      |              ^~~
Language: C++

def A(w, v, n,V):
    mem=[0 for i in range(V+1)]
    if n == 0 or V == 0:
        return 0
 
    for i in range(n):
        for j in range(V,w[i]-1,-1):
            mem[j] = max(mem[j], v[i]+ mem[j - w[i]])
    return mem[V]
n,V=input().split()
n,V=int(n),int(V)
 
w=[0]*n
v=[0]*n
for i in range(n):
  x,y=input().split()
  w[i],v[i]=int(x),int(y)
 
print(A(w,v,n,V))

Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def A(w, v, n,V):
      | ^~~
Language: Java

import java.util.*;
public class MyClass {
    
    static int frog(int[] arr, int n){
        
        int result[] = new int[n];
        result[1] = Math.abs(arr[1]-arr[0]);
        result[0] = arr[0];
        for(int i=2; i<n; i++){
            result[i] = Math.min(result[i-1]+Math.abs(arr[i]-arr[i-1]),result[i-2]+Math.abs(arr[i]-arr[i-2]));
        }
        
      
        return result[n-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();
        }
        
        
        
        
      

    int result = frog(arr,n);
    System.out.println(result);
     
    }
}

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

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

int gcd(long long a, long long b){
  long long M = max(a, b), m = min(a, b);
  while(m != 0){
  	long long r = M%m;
    M = m; m = r;
  }
  return M;
}

int digit_sum(long long n){
  long long ans;
  while(n != 0){
  	ans += n%10;
  	n /= 10;
  }
  return ans;
}

int main(){
  int n;
  cin >> n;
  vector<int> h(n);
  for(int i = 0; i < n; i++){
  	cin >> h.at(i);
  }
  
  vector<int> dp(n);
  dp.at(0) = 0; dp.at(1) = abs(h.at(1) - h.at(0));
  
  if(n >= 3){
  	for(int i = 2; i < n; i++){
  		dp.at(i) = min(abs(h.at(i) - h.at(i-1)), abs(h.at(i) - h.at(i-2)));
  }
  }
  cout << dp(n-1) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:13: error: no match for call to '(std::vector<int>) (int)'
   38 |   cout << dp(n-1) << endl;
      |           ~~^~~~~
Language: C++

#include<iostream>
#include<math.h>
using namespace std;
int main() {
  int n;cin>>n;
  vector<int> stones;
  vector<int> dp;// = new int[n];
  int tmp=0;
  for(int i=0;i<n;i++){cin>>tmp;stones.push_back(tmp);}
  dp.push_back(0);
  dp.push_back(abs(stones[1]-stones[0]));
  for(int i=2;i<n;i++) {
  	dp.push_back(min(dp[i-1]+abs(stones[i]-stones[i-1]),dp[i-2]+abs(stones[i-2]-stones[i])));
  }
  if(n>=1)cout<<dp[n-1]<<endl;
  else cout<<0<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'vector' was not declared in this scope
    6 |   vector<int> stones;
      |   ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include<math.h>
  +++ |+#include <vector>
    3 | using namespace std;
a.cc:6:10: error: expected primary-expression before 'int'
    6 |   vector<int> stones;
      |          ^~~
a.cc:7:10: error: expected primary-expression before 'int'
    7 |   vector<int> dp;// = new int[n];
      |          ^~~
a.cc:9:33: error: 'stones' was not declared in this scope
    9 |   for(int i=0;i<n;i++){cin>>tmp;stones.push_back(tmp);}
      |                                 ^~~~~~
a.cc:10:3: error: 'dp' was not declared in this scope
   10 |   dp.push_back(0);
      |   ^~
a.cc:11:20: error: 'stones' was not declared in this scope
   11 |   dp.push_back(abs(stones[1]-stones[0]));
      |                    ^~~~~~
Language: C++

#include<iostream>
#inlcude<math.h>
using namespace std;
int main() {
  int n;cin>>n;
  int* stones = new int[n];
  int* dp = new int[n];
  if(n>=1)cin>>stones[0];
  if(n>=2)cin>>stones[1];
  dp[0]=0;
  dp[1]=abs(stones[1]-stones[2]);
  for(int i=2;i<n;i++) {
    cin>>stones[i];
  	dp[i]=min(dp[i-1]+abs(stones[i]-stones[i-1]),dp[i-2]+abs(stones[i-2]-stones[i]));
  }
  if(n>=1)cout<<dp[n-1]<<endl;
  else cout<<0<<endl;
  return 0;
}

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    2 | #inlcude<math.h>
      |  ^~~~~~~
      |  include
Language: C++

#include<iostream>
#inlcude<math.h>
using namespace std;
int main() {
  int n;cin>>n;
  int* stones = new int[n];
  int* dp = new int[n];
  if(n>=1)cin>>stones[0];
  if(n>=2)cin>>stones[1];
  dp[0]=0;
  dp[1]=abs(stones[1]-stones[2]);
  for(int i=2;i<n;i++) {
    cin>>stones[i];
  	dp[i]=min(dp[i-1]+abs(stones[i]-stones[i-1]),dp[i-2]+min(stones[i-2]-stones[i]));
  }
  if(n>=1)cout<<dp[n-1]<<endl;
  else cout<<0<<endl;
  return 0;
}

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    2 | #inlcude<math.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:14:65: error: no matching function for call to 'min(int)'
   14 |         dp[i]=min(dp[i-1]+abs(stones[i]-stones[i-1]),dp[i-2]+min(stones[i-2]-stones[i]));
      |                                                              ~~~^~~~~~~~~~~~~~~~~~~~~~~
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: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
Language: C++

#include<iostream>
using namespace std;
int main() {
  int n;cin>>n;
  int* stones = new int[n];
  int* dp = new int[n];
  if(n>=1)cin>>stones[0];
  if(n>=2)cin>>stones[1];
  dp[0]=0;
  dp[1]=abs(stones[1]-stones[2]);
  for(int i=1;i<n;i++) {
    cin>>stones[i];
  	dp[i]=min(dp[i-1]+abs(stones[i]-stones[i-1]),dp[i-2]+min(stones[i-2]-stones[i]));
  }
  if(n>=1)cout<<dp[n-1]<<endl;
  else cout<<0<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:65: error: no matching function for call to 'min(int)'
   13 |         dp[i]=min(dp[i-1]+abs(stones[i]-stones[i-1]),dp[i-2]+min(stones[i-2]-stones[i]));
      |                                                              ~~~^~~~~~~~~~~~~~~~~~~~~~~
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: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