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

#include<stdio.h>
#include<bits/stdc++.h>
#include<string>
#include<math.h>
#include<vector>
#include <iostream>
#include <algorithm>

using namespace std;
const long long int INF=1e+5;

int main(){
    long long int N;
    cin>>N;
    vector<long long int>h(N);
    for(long long int i=0;i<N;i++)
        cin>>h[i];
    vector<long long int> dp(N,INF);
    dp[0]=0;
    for(long long int i=0;i<N;i++){
        for(long long int j=i+1;j<=i+2;j++){
            if(j<N){
                dp[j]=min(dp[j],dp[i]+abs(h[i]-h[j]));
            }
        }
    }
    cout<<dp[N-1];
    return 0;
}
#include<stdio.h>
#include<bits/stdc++.h>
#include<string>
#include<math.h>
#include<vector>
#include <iostream>
#include <algorithm>

using namespace std;
const long long int INF=1e+5;

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


Compiler output:
a.cc:39:21: error: redefinition of 'const long long int INF'
   39 | const long long int INF=1e+5;
      |                     ^~~
a.cc:10:21: note: 'const long long int INF' previously defined here
   10 | const long long int INF=1e+5;
      |                     ^~~
a.cc:41:5: error: redefinition of 'int main()'
   41 | int main(){
      |     ^~~~
a.cc:12:5: note: 'int main()' previously defined here
   12 | int main(){
      |     ^~~~
Language: C++

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

#define int long long

int arr[1000];
int dp[1000];

int f(int n)
{
	if(n==1)
	{
		return 0;
	}
	if(n<=0)
	{
	return INT_MAX;
	}
	if(dp[n]!=-1)
	{
		return dp[n];
	}
	int ans1 = INT_MAX, ans2= INT_MAX;
	ans1 = abs(arr[n] - arr[n-1] + fun(n-1));
	if(n>2)
	{
		ans2  = abs(arr[n]-arr[n-2]+fun(n-2));
	}
	dp[n] =  min(ans1,ans2);
	return dp[n];
}

int32_t main()
{
	int n;
	cin>>n;
	memset(dp,-1,sizeof(dp));
	for(int i=0;i<n;i++)	cin>>arr[i];
	cout<<f(n-1);
	return 0;
}

Compiler output:
a.cc: In function 'long long int f(long long int)':
a.cc:24:40: error: 'fun' was not declared in this scope
   24 |         ans1 = abs(arr[n] - arr[n-1] + fun(n-1));
      |                                        ^~~
Language: C++

#include<bits/stdc++.h> 
int main() 
{ int t; 
  cin>>t; 
while(t--) 
{ int n; 
  cin>>n; 
  int a[n]; 
  int s[n+1]={0};
  for(int i=0;i<n;++i) 
  { cin>>a[i]; 
  } 
s[2]=abs(a[1]-a[0]);
for(int i=3;i<=n;++i) 
{ int a=s[i-1]+abs(a[i-1]-a[i-2]); 
  int b=s[i-2]+abs(a[i-3]-a[i-1]); 
  int c=s[i-2]+abs(a[i-3]-a[i-2])+abs(a[i-2]-a[i-1]); 
  s[i]=max(max(a,b),c); 
} 
cout<<s[n]<<'\n'; 
} 
return 0; 
} 


Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |   cin>>t;
      |   ^~~
      |   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:15:21: error: invalid types 'int[int]' for array subscript
   15 | { int a=s[i-1]+abs(a[i-1]-a[i-2]);
      |                     ^
a.cc:15:28: error: invalid types 'int[int]' for array subscript
   15 | { int a=s[i-1]+abs(a[i-1]-a[i-2]);
      |                            ^
a.cc:16:21: error: invalid types 'int[int]' for array subscript
   16 |   int b=s[i-2]+abs(a[i-3]-a[i-1]);
      |                     ^
a.cc:16:28: error: invalid types 'int[int]' for array subscript
   16 |   int b=s[i-2]+abs(a[i-3]-a[i-1]);
      |                            ^
a.cc:17:21: error: invalid types 'int[int]' for array subscript
   17 |   int c=s[i-2]+abs(a[i-3]-a[i-2])+abs(a[i-2]-a[i-1]);
      |                     ^
a.cc:17:28: error: invalid types 'int[int]' for array subscript
   17 |   int c=s[i-2]+abs(a[i-3]-a[i-2])+abs(a[i-2]-a[i-1]);
      |                            ^
a.cc:17:40: error: invalid types 'int[int]' for array subscript
   17 |   int c=s[i-2]+abs(a[i-3]-a[i-2])+abs(a[i-2]-a[i-1]);
      |                                        ^
a.cc:17:47: error: invalid types 'int[int]' for array subscript
   17 |   int c=s[i-2]+abs(a[i-3]-a[i-2])+abs(a[i-2]-a[i-1]);
      |                                               ^
a.cc:18:12: error: 'max' was not declared in this scope; did you mean 'std::max'?
   18 |   s[i]=max(max(a,b),c);
      |            ^~~
      |            std::max
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:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:18:8: error: 'max' was not declared in this scope; did you mean 'std::max'?
   18 |   s[i]=max(max(a,b),c);
      |        ^~~
      |        std::max
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: 'std::max' declared here
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:20:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   20 | cout<<s[n]<<'\n';
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <cstdlib>
using namespace std;
bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

const long long INF = 1LL << 60;
long long dp[10100];
int main(void){
    for(int i=0;i<10100;i++)dp[i]=INF;
    int N;cin>>N;
    int h[N];
    for(int i=0;i<N;i++)cin>>h[i];
    dp[0]=0;
    for(int i=1;i<N;i++){
        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;
    return 0;
}


Compiler output:
a.cc:5:12: error: 'T' was not declared in this scope
    5 | bool chmin(T& a, T b) {
      |            ^
a.cc:5:15: error: 'a' was not declared in this scope
    5 | bool chmin(T& a, T b) {
      |               ^
a.cc:5:18: error: 'T' was not declared in this scope
    5 | bool chmin(T& a, T b) {
      |                  ^
a.cc:5:21: error: expression list treated as compound expression in initializer [-fpermissive]
    5 | bool chmin(T& a, T b) {
      |                     ^
a.cc: In function 'int main()':
a.cc:22:14: error: 'chmin' cannot be used as a function
   22 |         chmin(dp[i],dp[i-1]+abs(h[i]-h[i-1]));
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:23:21: error: 'chmin' cannot be used as a function
   23 |         if(i>1)chmin(dp[i],dp[i-2]+abs(h[i]-h[i-2]));
      |                ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std ;
int main (){
long long  int t=0, sum=0, n,a[1000000];
  
  cin>>n;
  for(long long int i=0;i<n;i++){
  cin>>a[i];
   }
 
  while(t<n){
 if((abs(a[t]-a[t+2]))>=(abs(a[t]-a[t+1])+abs(a[t+1]-a[t+2])))
 {sum=sum+(abs(a[t]-a[t+1])+abs(a[t+1]-a[t+2]);
           t=t+2}else {sum=sum+abs(a[t]-a[t+2]);
                      t=t+1;}
            }
         cout<<sum<<endl;   
  
  
return 0;  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:47: error: expected ')' before ';' token
   13 |  {sum=sum+(abs(a[t]-a[t+1])+abs(a[t+1]-a[t+2]);
      |           ~                                   ^
      |                                               )
a.cc:14:17: error: expected ';' before '}' token
   14 |            t=t+2}else {sum=sum+abs(a[t]-a[t+2]);
      |                 ^
      |                 ;
Language: C++

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

int check(LL a[],LL n)
{
    LL tot_cost=0;
    LL i=1;
    while(i<=n)
    {   LL cost1=INT_MAX,cost2=INT_MAX;
        if(i==n)
            break;
        if(i+1<=n)
            cost1=abs(a[i]-a[i+1]);
        if(i+2<=n)
            cost2=abs(a[i]-a[i+2]);

        if(cost1>=cost2)
        {
            tot_cost+=cost2;
            i=i+2;
        }
        else
        {
            tot_cost+=cost1;
            i=i+1;
        }//cout<<tot_cost<<endl;
    }
    return tot_cost;
}


int main()
{
    LL n;
    cin>>n;
    LL a[n+1];
    for(LL i=1;i=<n;i++)
        cin>>a[i];
    cout<<check(a,n)<<endl;

    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:38:18: error: expected primary-expression before '<' token
   38 |     for(LL i=1;i=<n;i++)
      |                  ^
Language: C++

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

int check(LL a[],LL n)
{
    LL tot_cost=0;
    LL i=n;
    while(i>=1)
    {   LL cost1=INT_MAX,cost2=INT_MAX;
        if(i==1)
            break;
        if(i-1>=1)
            cost1=abs(a[i]-a[i-1]);
        if(i-2>=1)
            cost2=abs(a[i]-a[i-2]);

        if(cost1>=cost2)
        {
            tot_cost+=cost2;
            i=i-2;
        }
        else
        {
            tot_cost+=cost1;
            i=i-1;
        }//cout<<tot_cost<<endl;
    }
    return tot_cost;
}


int main()
{
    LL n;
    cin>>n;
    LL a[n+1];
    for(LL i=1;i=<n;i++)
        cin>>a[i];
    cout<<check(a,n)<<endl;

    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:38:18: error: expected primary-expression before '<' token
   38 |     for(LL i=1;i=<n;i++)
      |                  ^
Language: C++

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

int check(LL a[],LL n)
{
    LL tot_cost=0;
    LL i=n;
    while(i>=1)
    {   LL cost1=INT_MAX,cost2=INT_MAX;
        if(i==1)
            break;
        if(i-1>=1)
            cost1=abs(a[i]-a[i-1]);
        if(i-2>=1)
            cost2=abs(a[i]-a[i-2]);

        if(cost1>=cost2)
        {
            tot_cost+=cost2;
            i=i-2;
        }
        else
        {
            tot_cost+=cost1;
            i=i-1;
        }//cout<<tot_cost<<endl;
    }
    return tot_cost;
}


int main()
{
    LL n;
    cin>>n;
    LL a[n];
    for(LL i=1;i=<n;i++)
        cin>>a[i];
    cout<<check(a,n)<<endl;

    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:38:18: error: expected primary-expression before '<' token
   38 |     for(LL i=1;i=<n;i++)
      |                  ^
Language: C++

#include<iostream>
#include<cmath>
#include<map>
#include<algorithm>
using namespace std;
typedef long long ll;
int n, a[100009], dp[100009];
int f(int i, int s) {
	if (i > n)return 1e9;
	else if (i == n)return s;
	if (dp[i] != -1)return dp[i];
	return dp[i] = min(f(i + 1, s + abs(a[i] - a[i + 1])), f(i + 2, s + abs(a[i] - a[i + 2])));
}
int main() {
	memset(dp, -1, sizeof dp);
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> a[i];
	cout << f(1, 0) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:9: error: 'memset' was not declared in this scope
   15 |         memset(dp, -1, sizeof dp);
      |         ^~~~~~
a.cc:5:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include<algorithm>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

#include <iostream>
#include <vector>
#include <cstdlib>
#include <string.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 N; cin >> N;
  for (int i = 0; i < N; ++i) cin >> h[i];
  
  memset(h, INF, sizeof(h))
  
  dp[0] = 0;
  
  for (int i = 1; i < N; ++i) {
    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:20:13: warning: overflow in conversion from 'long long int' to 'int' changes value from '1152921504606846976' to '0' [-Woverflow]
   20 |   memset(h, INF, sizeof(h))
      |             ^~~
a.cc:20:28: error: expected ';' before 'dp'
   20 |   memset(h, INF, sizeof(h))
      |                            ^
      |                            ;
   21 | 
   22 |   dp[0] = 0;
      |   ~~
Language: C++

#include <iostream>
#include <stdio.h>
#include <vector>
#include <cstdlib>
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 N; cin >> N;
  for (int i = 0; i < N; ++i) cin >> h[i];
  
  memset(h, INF, sizeof(h))
  
  dp[0] = 0;
  
  for (int i = 1; i < N; ++i) {
    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:20:3: error: 'memset' was not declared in this scope
   20 |   memset(h, INF, sizeof(h))
      |   ^~~~~~
a.cc:5:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include <cstdlib>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

#include <iostream>
#include <vector>
#include <cstdlib>
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 N; cin >> N;
  for (int i = 0; i < N; ++i) cin >> h[i];
  
  memset(h, INF, sizeof(h))
  
  dp[0] = 0;
  
  for (int i = 1; i < N; ++i) {
    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:19:3: error: 'memset' was not declared in this scope
   19 |   memset(h, INF, sizeof(h))
      |   ^~~~~~
a.cc:4:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    3 | #include <cstdlib>
  +++ |+#include <cstring>
    4 | using namespace std;
Language: C++

#include <vector>
#include <cstdlib>
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 N; cin >> N;
  for (int i = 0; i < N; ++i) cin >> h[i];
  
  dp[0] = 0;
  
  for (int i = 1; i < N; ++i) {
    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:15:10: error: 'cin' was not declared in this scope
   15 |   int N; cin >> N;
      |          ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <cstdlib>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:24:3: error: 'cout' was not declared in this scope
   24 |   cout << dp[N-1] << endl;
      |   ^~~~
a.cc:24:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:24:22: error: 'endl' was not declared in this scope
   24 |   cout << dp[N-1] << endl;
      |                      ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include <cstdlib>
  +++ |+#include <ostream>
    3 | using namespace std;
Language: C++

#include <iostream>
#include <vector>
#include <cstdlib>
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 N; cin >> N;
  for (int i = 0;; i < N; i++) cin >> h[i];
  
  dp[0] = 0;
  
  for (int i = 1; i < N; i++) {
    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:17:25: error: expected ')' before ';' token
   17 |   for (int i = 0;; i < N; i++) cin >> h[i];
      |       ~                 ^
      |                         )
a.cc:17:27: error: 'i' was not declared in this scope
   17 |   for (int i = 0;; i < N; i++) cin >> h[i];
      |                           ^
Language: C++

#include <iostream>
#include <vector>
#include <cstdlib>
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 N; cin >> N;
  for (int i = 0;; i < N, i++) cin >> h[i];
  
  dp[0] = 0;
  
  for (int i = 1; i < N, i++) {
    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:21:29: error: expected ';' before ')' token
   21 |   for (int i = 1; i < N, i++) {
      |                             ^
      |                             ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
//int dp[104][100005];
long long dp[(1e+9)+5];
int main()
{
  long long n,we,i,j;
  cin>>n>>we;
  long long w[n+1],v[n+1];
  for(i=1;i<=n;i++)
  {
    cin>>w[i]>>v[i];
  }
 
  for(i=1;i<=n;i++){
		for(j=we;j>=w[i];j--){
			dp[j] = max(dp[j],dp[j-w[i]]+v[i]);
		}
	}
cout<<dp[we];
  return 0;
}


Compiler output:
a.cc:4:20: error: conversion from 'double' to 'long unsigned int' in a converted constant expression
    4 | long long dp[(1e+9)+5];
      |              ~~~~~~^~
a.cc:4:20: error: could not convert '(1.0e+9 + (double)5)' from 'double' to 'long unsigned int'
    4 | long long dp[(1e+9)+5];
      |              ~~~~~~^~
      |                    |
      |                    double
a.cc:4:20: error: size of array 'dp' has non-integral type 'double'
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll calmin(ll a[],ll i,ll n)
{
  ll k=-1,l=-1;
  if(i-1>=0)
  {
    k=a[i]-a[i-1];
      abs(k);
  }
  if(i-2>=0)
  {
    l=a[i]-a[i-2];
    abs(l);
  }
  if(k>l)
    return (i-1);
  else 
    return(i-2);
}
int main()
{
  ll n,m,i,j,k,l;
  cin>>n;
  ll a[n],b[n];
  for(i=0;i<n;i++)
    cin>>a[i];
  if(n==2)
    cout<<abs(a[1]-a[0]);
  ll jump=0;
  dp[n-1]=0;
  for(i=m-1;i>=0;)
  {
    ll t=a[i];
    i=calmin(a,i,n);
    jump+=abs(t-a[i]);
  }
    cout<<jump;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   32 |   dp[n-1]=0;
      |   ^~
      |   dup
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll calmin(ll a[],ll i,ll n)
{
  ll k=-1,m=-1;
  if(i-1>=0)
  {
    k=a[i]-a[i-1];
      abs(k);
  }
  if(i-2>=0)
  {
    l=a[i]-a[i-2];
    abs(l);
  }
  if(k>l)
    return (i-1);
  else 
    return(i-2);
}
int main()
{
  ll n,m,i,j,k,l;
  cin>>n;
  ll a[n],b[n];
  for(i=0;i<n;i++)
    cin>>a[i];
  if(n==2)
    cout<<abs(a[1]-a[0]);
  ll jump=0;
  dp[n-1]=0;
  for(i=m-1;i>=0;)
  {
    ll t=a[i];
    i=calmin(a,i,n);
    jump+=abs(t-a[i]);
  }
    cout<<jump;
}

Compiler output:
a.cc: In function 'll calmin(ll*, ll, ll)':
a.cc:14:5: error: 'l' was not declared in this scope
   14 |     l=a[i]-a[i-2];
      |     ^
a.cc:17:8: error: 'l' was not declared in this scope
   17 |   if(k>l)
      |        ^
a.cc: In function 'int main()':
a.cc:32:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   32 |   dp[n-1]=0;
      |   ^~
      |   dup
a.cc: In function 'll calmin(ll*, ll, ll)':
a.cc:21:1: warning: control reaches end of non-void function [-Wreturn-type]
   21 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll calmin(ll a,ll i,ll n)
{
  ll k=-1,m=-1;
  if(i-1>=0)
  {
    k=a[i]-a[i-1];
      abs(k);
  }
  if(i-2>=0)
  {
    l=a[i]-a[i-2];
    abs(l);
  }
  if(k>l)
    return (i-1);
  else 
    return(i-2);
}
int main()
{
  ll n,m,i,j,k,l;
  cin>>n;
  ll a[n],b[n];
  for(i=0;i<n;i++)
    cin>>a[i];
  if(n==2)
    cout<<abs(a[1]-a[0]);
  ll jump=0;
  dp[n-1]=0;
  for(i=m-1;i>=0;)
  {
    ll t=a[i];
    i=calmin(a,i,n);
    jump+=abs(t-a[i]);
  }
    cout<<jump;
}

Compiler output:
a.cc: In function 'll calmin(ll, ll, ll)':
a.cc:9:8: error: invalid types 'll {aka long long int}[ll {aka long long int}]' for array subscript
    9 |     k=a[i]-a[i-1];
      |        ^
a.cc:9:13: error: invalid types 'll {aka long long int}[ll {aka long long int}]' for array subscript
    9 |     k=a[i]-a[i-1];
      |             ^
a.cc:14:5: error: 'l' was not declared in this scope
   14 |     l=a[i]-a[i-2];
      |     ^
a.cc:14:8: error: invalid types 'll {aka long long int}[ll {aka long long int}]' for array subscript
   14 |     l=a[i]-a[i-2];
      |        ^
a.cc:14:13: error: invalid types 'll {aka long long int}[ll {aka long long int}]' for array subscript
   14 |     l=a[i]-a[i-2];
      |             ^
a.cc:17:8: error: 'l' was not declared in this scope
   17 |   if(k>l)
      |        ^
a.cc: In function 'int main()':
a.cc:32:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   32 |   dp[n-1]=0;
      |   ^~
      |   dup
a.cc:36:14: error: invalid conversion from 'll*' {aka 'long long int*'} to 'll' {aka 'long long int'} [-fpermissive]
   36 |     i=calmin(a,i,n);
      |              ^
      |              |
      |              ll* {aka long long int*}
a.cc:4:14: note:   initializing argument 1 of 'll calmin(ll, ll, ll)'
    4 | ll calmin(ll a,ll i,ll n)
      |           ~~~^
a.cc: In function 'll calmin(ll, ll, ll)':
a.cc:21:1: warning: control reaches end of non-void function [-Wreturn-type]
   21 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using nemaspace std;
typedef long long ll;
ll calmin(a,i,n)
{
  ll k=-1,m=-1;
  if(i-1>=0)
  {
    k=a[i]-a[i-1];
      abs(k);
  }
  if(i-2>=0)
  {
    l=a[i]-a[i-2];
    abs(l);
  }
  if(k>l)
    return (i-1);
  else 
    return(i-2);
}
int main()
{
  ll n,m,i,j,k,l;
  cin>>n;
  ll a[n],b[n];
  for(i=0;i<n;i++)
    cin>>a[i];
  if(n==2)
    cout<<abs(a[1]-a[0]);
  ll jump=0;
  dp[n-1]=0;
  for(i=m-1;i>=0;)
  {
    ll t=a[i];
    i=calmin(a,i,n);
    jump+=abs(t-a[i]);
  }
    cout<<jump;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'nemaspace'
    2 | using nemaspace std;
      |       ^~~~~~~~~
a.cc:4:11: error: 'a' was not declared in this scope
    4 | ll calmin(a,i,n)
      |           ^
a.cc:4:13: error: 'i' was not declared in this scope
    4 | ll calmin(a,i,n)
      |             ^
a.cc:4:15: error: 'n' was not declared in this scope; did you mean 'yn'?
    4 | ll calmin(a,i,n)
      |               ^
      |               yn
a.cc:4:16: error: expression list treated as compound expression in initializer [-fpermissive]
    4 | ll calmin(a,i,n)
      |                ^
a.cc: In function 'int main()':
a.cc:25:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
   25 |   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:30:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   30 |     cout<<abs(a[1]-a[0]);
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:32:3: error: 'dp' was not declared in this scope; did you mean 'dup'?
   32 |   dp[n-1]=0;
      |   ^~
      |   dup
a.cc:36:13: error: 'calmin' cannot be used as a function
   36 |     i=calmin(a,i,n);
      |       ~~~~~~^~~~~~~
a.cc:39:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   39 |     cout<<jump;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

import math
import sys
import os

n = int(input())
h = list(input().split())
h = [int(i) for i in h]
dp = [100000]*n
dp[0] = 0
for i in range(1, n):
    dp[i] = min(dp[i], dp[i-1] + abs(h[i]-h[i-1]))
    if i>1:
        dp[i] = min(dp[i], dp[i-2] + abs(h[i]-h[i-2]))

print(dp[n-1])


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import math
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

# import math
# import sys
# import os
# f = open('input.txt', 'r')
# sys.stdin = f

n = int(input())
h = list(input().split())
h = [int(i) for i in h]
dp = [100000]*n
dp[0] = 0
for i in range(1, n):
    dp[i] = min(dp[i], dp[i-1] + abs(h[i]-h[i-1]))
    if i>1:
        dp[i] = min(dp[i], dp[i-2] + abs(h[i]-h[i-2]))

print(dp[n-1])


Compiler output:
a.cc:1:3: warning: #import is a deprecated GCC extension [-Wdeprecated]
    1 | # import math
      |   ^~~~~~
a.cc:1:10: error: #import expects "FILENAME" or <FILENAME>
    1 | # import math
      |          ^~~~
a.cc:2:3: warning: #import is a deprecated GCC extension [-Wdeprecated]
    2 | # import sys
      |   ^~~~~~
a.cc:2:10: error: #import expects "FILENAME" or <FILENAME>
    2 | # import sys
      |          ^~~
a.cc:3:3: warning: #import is a deprecated GCC extension [-Wdeprecated]
    3 | # import os
      |   ^~~~~~
a.cc:3:10: error: #import expects "FILENAME" or <FILENAME>
    3 | # import os
      |          ^~
a.cc:4:3: error: invalid preprocessing directive #f; did you mean #if?
    4 | # f = open('input.txt', 'r')
      |   ^
      |   if
a.cc:5:3: error: invalid preprocessing directive #sys
    5 | # sys.stdin = f
      |   ^~~
a.cc:7:1: error: 'n' does not name a type
    7 | n = int(input())
      | ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:20:34: error: 'a' was not declared in this scope
   20 |     ans[i]=abs(ans[i-1]+abs(v[i]-a[i-1]),ans[i-2]+abs(v[i]-v[i-2]));
      |                                  ^
a.cc:22:18: error: expected '}' at end of input
   22 |   cout<<ans[n-1];
      |                  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include <iostream>
#include <cassert>
#include <cstdlib>
#include <vector>
const int INT_LARGE = 1.0e+9 + 7;

int main() {
  // Input
  int numArray;
  std::cin >> numArray;
  assert(2 <= numArray and numArray <= 1.0e+5);
  std::vector<int> height(1 + numArray + 2);
  for (int i = 1; i <= numArray; ++i) {
    std::cin >> height[i];
    assert(height[i] <= 1.0e+4);
  }

  // Init
  std::vector<int> dp(1 + numArray + 2);
  for (int i = 1; i <= numArray + 2; ++i)
    dp[i] = INT_LARGE;
  dp[0] = 0;

  // DP main
  for (int i = 1; i <= numArray; ++i) {
    dp[i + 1] = min(dp[i + 1], dp[i] + abs(height[i + 1] - height[i]));
    dp[i + 2] = min(dp[i + 2], dp[i] + abs(height[i + 2] - height[i]));
  }

  // Output
  std::cout << dp[numArray] << std::endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:17: error: 'min' was not declared in this scope; did you mean 'std::min'?
   26 |     dp[i + 1] = min(dp[i + 1], dp[i] + abs(height[i + 1] - height[i]));
      |                 ^~~
      |                 std::min
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: 'std::min' declared here
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
Language: C++

#include <bits/stdc++.h>

#define MAX_N 100003

using namespace std;

int N;
int V[MAX_N];


int foo(int i){
    if(i == N-1){
        return 0;
    }
    /*Eins*/
    int a = foo(i+1)+(abs(V[i+1]-V[i]));
    /*Zwei*/
    if(i < N-2){
        int b = foo(i +2)+(abs(V[i+2]- V[i]));
        a = min(a,b);
    }
    return a;
}

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:18:78: error: expected ')' before ';' token
   18 |     cost[i]=min(abs(arr[i]-arr[i-1])+cost[i-1],cost[i-2]+abs(arr[i-2]-arr[i]);}
      |                ~                                                             ^
      |                                                                              )
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:18:35: error: expected ']' before ')' token
   18 |     cost[i]=min(abs(arr[i]-arr[i-1)+cost[i-1],cost[i-2]+abs(arr[i-2]-arr[i]);}
      |                                   ^
      |                                   ]
a.cc:18:77: error: expected ')' before ';' token
   18 |     cost[i]=min(abs(arr[i]-arr[i-1)+cost[i-1],cost[i-2]+abs(arr[i-2]-arr[i]);}
      |                ~                                                            ^
      |                                                                             )
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int t;
  t=1;
  while(t--)
  {
    int n;
    cin>>n;
    vector<int> arr(n);
    for(int i=0;i<n;i++)
      cin>>arr[i];
    vector<int> cost(n,0);
    cost[1]=abs(arr[1]-arr[0]);
    for(i=2;i<n;i++)
    {
    cost[i]=min(abs(arr[i]-arr[i-1)+cost[i-1],cost[i-2]+abs(arr[i-2]-arr[i]);}
    cout<<cost[n-1];
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'vector' was not declared in this scope
   11 |     vector<int> arr(n);
      |     ^~~~~~
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:11:12: error: expected primary-expression before 'int'
   11 |     vector<int> arr(n);
      |            ^~~
a.cc:13:12: error: 'arr' was not declared in this scope
   13 |       cin>>arr[i];
      |            ^~~
a.cc:14:12: error: expected primary-expression before 'int'
   14 |     vector<int> cost(n,0);
      |            ^~~
a.cc:15:5: error: 'cost' was not declared in this scope; did you mean 'const'?
   15 |     cost[1]=abs(arr[1]-arr[0]);
      |     ^~~~
      |     const
a.cc:15:17: error: 'arr' was not declared in this scope
   15 |     cost[1]=abs(arr[1]-arr[0]);
      |                 ^~~
a.cc:16:9: error: 'i' was not declared in this scope
   16 |     for(i=2;i<n;i++)
      |         ^
a.cc:18:35: error: expected ']' before ')' token
   18 |     cost[i]=min(abs(arr[i]-arr[i-1)+cost[i-1],cost[i-2]+abs(arr[i-2]-arr[i]);}
      |                                   ^
      |                                   ]
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  int N;
  cin>>N;
  vector<int> A(N),DP(N);
  for(int i=0;i<N;i++)cin>>A[i];
  DP[0]=0;
  DP[1]=abs(A[0]-A[1]);
  for(int i=2;i<N;i++) {
    DP[i]=min(abs(A[i-1]-A[i]),abs(A[i-2]-A[i]));
  }
  cout<<DP[N-1]<<endl;
  return 0;
}
  
  
}

Compiler output:
a.cc:22:1: error: expected declaration before '}' token
   22 | }
      | ^
Language: C++


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

long long j[100000];
long long a[100000];
memset(j,-1,sizeof(j));

long long jump(long long i,long long N)
{
	if(i > N-1)
		return 999999999;
	if(i == N-1)
		return 0;
	else if(j[i]!=-1)
		return j[i];
	else
	{
		long long mn=min( abs(a[i+1]-a[i])+jump(i+1,N),
			abs(a[i+2]-a[i])+jump(i+2,N) );
		j[i]=mn;
		return mn;
	}

}

int main()
{

	// freopen("/home/karn/in", "r", stdin);
 //    freopen("/home/karn/out", "w", stdout);

    long long n;
    cin>>n;

    for(long long i=0;i<n;i++)
    	cin>>a[i];
    cout<<jump(0,n);
	return 0;
}


Compiler output:
a.cc:7:7: error: expected constructor, destructor, or type conversion before '(' token
    7 | memset(j,-1,sizeof(j));
      |       ^
Language: C++


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

long long j[100000];
long long a[100000];
memset(j,-1,sizeof(j))

long long jump(long long i,long long N)
{
	if(i > N-1)
		return 999999999;
	if(i == N-1)
		return 0;
	else if(j[i]!=-1)
		return j[i];
	else
	{
		long long mn=min( abs(a[i+1]-a[i])+jump(i+1,N),
			abs(a[i+2]-a[i])+jump(i+2,N) );
		j[i]=mn;
		return mn;
	}

}

int main()
{

	// freopen("/home/karn/in", "r", stdin);
 //    freopen("/home/karn/out", "w", stdout);

    long long n;
    cin>>n;

    for(long long i=0;i<n;i++)
    	cin>>a[i];
    cout<<jump(0,n);
	return 0;
}


Compiler output:
a.cc:7:7: error: expected constructor, destructor, or type conversion before '(' token
    7 | memset(j,-1,sizeof(j))
      |       ^
a.cc: In function 'int main()':
a.cc:38:11: error: 'jump' was not declared in this scope
   38 |     cout<<jump(0,n);
      |           ^~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;

int main()
{
  int n,h[n];
  cin>>n;
  for(int i=1;i<=n;++i)
  {
    cin>>h[i];
    dp[i]=0;
  }
  long long dp[n];
  dp[1]=0;
  dp[2]=abs(h[1]-h[2]);
  for(int i=3;i<=n;++i)
  {
    int c1,c2;
    c1=abs(h[i]-h[i-1]);
    c2=abs(h[i]-h[i-2]);
    dp[i]=min(dp[i-1]+c1 , dp[i-2]+c2);
  }
  cout<<dp[n]<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'dp' was not declared in this scope; did you mean 'dup'?
   12 |     dp[i]=0;
      |     ^~
      |     dup
Language: Java

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

public class frog1 {

	static final boolean stdin = true;
	static final String filename = "";
	static FastScanner br;
	static PrintWriter pw;

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

		if (stdin) {
			br = new FastScanner();
			pw = new PrintWriter(new OutputStreamWriter(System.out));
		}

		else {
			br = new FastScanner(filename + ".in");
			pw = new PrintWriter(new FileWriter(filename + ".out"));
		}

		X solver = new X();
		solver.solve(br, pw);
	}

	static class X {
		public void solve(FastScanner br, PrintWriter pw) throws IOException {
			
			int N = br.nextInt();
			
			int[] in = new int[N];
			
			for(int i = 0; i < N; i++) {
				in[i] = br.nextInt();
			}
			
			int[] dp = new int[N];
			
			dp[0] = 0;
			
			for(int i = 1; i < N; i++) {
				if(i == 1) {
					dp[i] = dp[i-1] + dist(i, i-1, in);
				}
				else {
					dp[i] = Math.min(dp[i-1] + dist(i,i-1,in), dp[i-2] + dist(i,i-2,in));
				}
			}
			
			pw.println(dp[N-1]);
			
			pw.close();
		}
		
		public static int dist(int i, int j, int[] in) {
			return Math.abs(in[i] - in[j]);
		}

	}

	//fastscanner class
	public static class FastScanner {
		BufferedReader br;
		StringTokenizer st;

		public FastScanner(String s) {
			try {
				br = new BufferedReader(new FileReader(s));
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}

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

		String nextToken() {
			while (st == null || !st.hasMoreElements()) {
				try {
					st = new StringTokenizer(br.readLine());
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
			return st.nextToken();
		}

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

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

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

}
 



Compiler output:
Main.java:4: error: class frog1 is public, should be declared in a file named frog1.java
public class frog1 {
       ^
1 error
Language: C++

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

int w[100], v[100];
int n, W;
long long dp[100][100001];

long long solve(int i, int j)
{
	if (dp[i][j] != -1)
		return dp[i][j];
	long long res;
	if (i == n)
		res = 0;
	else if (j < w[i])
		res = solve(i + 1, j);
	else 
		res = max(solve(i + 1, j), solve(i + 1, j - w[i])+v[i]);
	return dp[i][j] = res;
}

int main()
{
	cin >> n >> W;
	for (int i = 0; i < n; i++)
		cin >> w[i] >> v[i];
	memset(dp, -1, sizeof(dp));
	long long ans = solve(0, W);
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:9: error: 'memset' was not declared in this scope
   30 |         memset(dp, -1, sizeof(dp));
      |         ^~~~~~
a.cc:5:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include<vector>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

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

int w[100], v[100];
int n, W;
long long dp[100][100001];

long long solve(int i, int j)
{
	if (dp[i][j] != -1)
		return dp[i][j];
	if (i == n)
		dp[i][j] = 0;
	else if (j < w[i])
		dp[i][j]=solve(i + 1, j);
	else 
		dp[i][j] = max(solve(i + 1, j), solve(i + 1, j - w[i])+v[i]);
	return dp[i][j];
}

int main()
{
	cin >> n >> W;
	for (int i = 0; i < n; i++)
		cin >> w[i] >> v[i];
	memset(dp, -1, 100 * 100001);
	long long ans = solve(0, W);
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:9: error: 'memset' was not declared in this scope
   29 |         memset(dp, -1, 100 * 100001);
      |         ^~~~~~
a.cc:5:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include<vector>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

int d[100000],dp[100000];
int dist(int x,int y){
  return (x<y)?(y-x):(x-y);
}
int min(int x,int y){
  return (x<y)?x:y;
}
int main(){
  int n;
  scanf("%d",&n);
  for(int i=0;i<n;i++)scanf("%d",&d[i]);
  dp[0]=0;
  dp[1]=dist(d[0],d[1]);
  for(int i=2;i<n;i++){
    dp[i]=min(dp[i-2]+dist(d[i-2],d[i]),dp[i-1]+dist(d[i-1],d[i]));
  }
  printf("%d",dp[n-1]);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'scanf' was not declared in this scope
   10 |   scanf("%d",&n);
      |   ^~~~~
a.cc:17:3: error: 'printf' was not declared in this scope
   17 |   printf("%d",dp[n-1]);
      |   ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int d[100000],dp[100000];
Language: C

#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <vector>
#define rep(i,x,n) for(int i=x;i<n;i++)
#define repd(i,x,n) for(int i=x;i<=n;i++)
#define pii pair<int,int>
#define pll pair<long long ,long long>
#define gbtb ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define MS0(X) memset((X), 0, sizeof((X)))
#define MSC0(X) memset((X), '\0', sizeof((X)))
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define gg(x) getInt(&x)
using namespace std;
typedef long long ll;
inline void getInt(int* p);
const int maxn=1000010;
const int inf=0x3f3f3f3f;
/*** TEMPLATE CODE * * STARTS HERE ***/
ll n;
ll dp[maxn];
ll a[maxn];
int main()
{
    gbtb;
    cin>>n;
    repd(i,1,n)
    {
        cin>>a[i];
    }
    dp[1]=0;
    dp[0]=0;
    dp[2]=abs(a[2]-a[1]);
    repd(i,3,n)
    {
        dp[i]=min(dp[i-2]+abs(a[i]-a[i-2]),dp[i-1]+abs(a[i]-a[i-1]));

    }
    cout<<dp[n];
    return 0;
}

inline void getInt(int* p) {
    char ch;
    do {
        ch = getchar();
    } while (ch == ' ' || ch == '\n');
    if (ch == '-') {
        *p = -(getchar() - '0');
        while ((ch = getchar()) >= '0' && ch <= '9') {
            *p = *p * 10 - ch + '0';
        }
    }
    else {
        *p = ch - '0';
        while ((ch = getchar()) >= '0' && ch <= '9') {
            *p = *p * 10 + ch - '0';
        }
    }
}

Compiler output:
main.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h> 
  
using namespace std; 
  
// Structure for an item which stores weight and corresponding 
// value of Item 
 #define LL long long
struct Item 
{ 
    int value, weight; 
  
    // Constructor 
    Item(int value, int weight) : value(value), weight(weight) 
    {} 
}; 
  


// Comparison function to sort Item according to val/weight ratio 
bool cmp(struct Item a, struct Item b) 
{ 
    double r1 = (double)a.value / a.weight; 
    double r2 = (double)b.value / b.weight; 
    return r1 > r2; 
} 

double fractionalKnapsack(int W, struct Item arr[], int n) 
{ 
    //    sorting Item on basis of ratio 
    sort(arr, arr + n, cmp); 
  
    //    Uncomment to see new order of Items with their ratio 
    /* 
    for (int i = 0; i < n; i++) 
    { 
        cout << arr[i].value << "  " << arr[i].weight << " : " 
             << ((double)arr[i].value / arr[i].weight) << endl; 
    } 
    */
  
    int curWeight = 0;  // Current weight in knapsack 
    double finalvalue = 0.0; // Result (value in Knapsack) 
  
    // Looping through all Items 
    for (int i = 0; i < n; i++) 
    { 
        // If adding Item won't overflow, add it completely 
        if (curWeight + arr[i].weight <= W) 
        { 
            curWeight += arr[i].weight; 
            finalvalue += arr[i].value; 
        } 
  
        // If we can't add current Item, add fractional part of it 
        else
        { 
            int remain = W - curWeight; 
            finalvalue += arr[i].value * ((double) remain / arr[i].weight); 
            break; 
        } 
    } 
  
    // Returning final value 
    return finalvalue; 
} 
  
// driver program to test above function 
int main() 
{ 
    LL n, w; cin >> n >> W;  //    Weight of knapsack 
    Item arr[n];

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

 //   int n = sizeof(arr) / sizeof(arr[0]); 
  
    cout <<(long long)fractionalKnapsack(W, arr, n); 
    return 0; 
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:70:26: error: 'W' was not declared in this scope
   70 |     LL n, w; cin >> n >> W;  //    Weight of knapsack
      |                          ^
a.cc:71:15: error: no matching function for call to 'Item::Item()'
   71 |     Item arr[n];
      |               ^
a.cc:13:5: note: candidate: 'Item::Item(int, int)'
   13 |     Item(int value, int weight) : value(value), weight(weight)
      |     ^~~~
a.cc:13:5: note:   candidate expects 2 arguments, 0 provided
a.cc:8:8: note: candidate: 'constexpr Item::Item(const Item&)'
    8 | struct Item
      |        ^~~~
a.cc:8:8: note:   candidate expects 1 argument, 0 provided
a.cc:8:8: note: candidate: 'constexpr Item::Item(Item&&)'
a.cc:8:8: note:   candidate expects 1 argument, 0 provided
Language: C++

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

public class Frog1 {
    public static void main(String[] args) {
        FastScanner scanner = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        int N = scanner.nextInt();
        int[] h = new int[N];
        for(int i = 0; i < N; i++) h[i] = scanner.nextInt();
        int[] dp = new int[N+1];
        for(int i = 1; i < N; i++) {
            dp[i] = dp[i-1] + Math.abs(h[i]-h[i-1]);
            if (i-2>=0) dp[i] = Math.min(dp[i], dp[i-2] + Math.abs(h[i]-h[i-2]));
        }
        out.println(dp[N-1]);
        out.flush();
    }
    
    public static class FastScanner {
        BufferedReader br;
        StringTokenizer st;
        
        public FastScanner(Reader in) {
            br = new BufferedReader(in);
        }
        
        public FastScanner() {
            this(new InputStreamReader(System.in));
        }
        
        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }
        
        int nextInt() {
            return Integer.parseInt(next());
        }
        
        long nextLong() {
            return Long.parseLong(next());
        }
        
        double nextDouble() {
            return Double.parseDouble(next());
        }
        
        String readNextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
        
        int[] readIntArray(int n) {
            int[] a = new int[n];
            for (int idx = 0; idx < n; idx++) {
                a[idx] = nextInt();
            }
            return a;
        }
    }
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
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.io.*;
      | ^~~~~~
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 Frog1 {
      | ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int n;
long long` a[100009];
long long dp[100009];
int main(){
	cin>>n;
	for(int i=1;i<=n;i++) cin>>a[i];
	dp[2]=abs(a[2]-a[1]);
	for(int i=3;i<=n;i++){
		dp[i]=min(abs(a[i-1]-a[i])+dp[i-1],abs(a[i-2]-a[i])+dp[i-2]);
	}
	cout<<dp[n]<<endl;
}


Compiler output:
a.cc:4:10: error: stray '`' in program
    4 | long long` a[100009];
      |          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define N 101010
#define inf 99999999
int n ;
long long a[N], dp[N] ;

signed main(){
	scanf("%d", &n) ;
	for (int i = 1; i <= n; i++) scanf("%lld", &a[i]) ;
	for (int i = 0; i <= n; i++) dp[i] = linf ;
	dp[1] = 0ll ;
	for (int i = 2; i <= n; i++)
	dp[i] = min(dp[i], min(dp[i - 1] + abs(a[i] - a[i - 1]), dp[i - 2] + abs(a[i] - a[i - 2]))) ;
	printf("%lld\n", dp[n]) ;
	return 0 ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:46: error: 'linf' was not declared in this scope; did you mean 'sinf'?
   11 |         for (int i = 0; i <= n; i++) dp[i] = linf ;
      |                                              ^~~~
      |                                              sinf