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

#include<iostream>
using namespace std;
int main(){
    int N;
    cin>>N;
    signed int A[N];
    int m=0;
    for(int i=0;i<N;i++){
        cin>>A[i];
        A[i]=A[i]-i;
        m=m+A[i];
    }
    m=(m+(N/2))/N;
    int d=0;
    int a;
    fot(int j=m-1;j<m+2;j++){
        d=0;
        for(int i=0;i<N;i++){
            d=d+abs(A[i]-j);
            if(i==m-1)a=d;
        }
        if(a>d)a=d;
    }
    cout<<d<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: expected primary-expression before 'int'
   16 |     fot(int j=m-1;j<m+2;j++){
      |         ^~~
a.cc:16:19: error: 'j' was not declared in this scope
   16 |     fot(int j=m-1;j<m+2;j++){
      |                   ^
Language: C

#include <stdio.h>
#include <stdlib.h>

int cmp_int(const void* v1, const void* v2)
{
  const int _v1 = *((const int*)v1);
  const int _v2 = *((const int*)v2);

  if ( _v1 > _v2 ) {
    return 1;
  } else if ( _v1 < _v2 ) {
    return -1;
  } else {
    return 0;
  }
}

int main(void)
{
  int N,n,i,j,b;
  int ans;
  int A[150], num[150],tmp[150];
  scanf("%d", &N);
  for(i = 0;i < N;i++){
      scanf("%d", &A[i]);
  }
  for(n = 0;n < N;n++){
    num[n] = A[n]-(n+1);
  }

  qsort(num, N, sizeof(int), cmp_int);

  long long int ans1=0,ans2=0;
    if (n%2==0){
        for (int i=0; i<n; i++){
            ans1+=abs(b[i]-b[n/2-1]);
            ans2+=abs(b[i]-b[n/2]);
        }
        if (ans1<ans2){
            printf ("%lld\n",ans1);
        } else {
            printf ("%lld\n",ans2);
        }
    } else {
        for (int i=0; i<n; i++){
            ans1+=abs(b[i]-b[(n+1)/2-1]) ;
        }
        printf ("%lld\n",ans1) ;
    }
	return 0 ;
}


Compiler output:
main.c: In function 'main':
main.c:36:24: error: subscripted value is neither array nor pointer nor vector
   36 |             ans1+=abs(b[i]-b[n/2-1]);
      |                        ^
main.c:36:29: error: subscripted value is neither array nor pointer nor vector
   36 |             ans1+=abs(b[i]-b[n/2-1]);
      |                             ^
main.c:37:24: error: subscripted value is neither array nor pointer nor vector
   37 |             ans2+=abs(b[i]-b[n/2]);
      |                        ^
main.c:37:29: error: subscripted value is neither array nor pointer nor vector
   37 |             ans2+=abs(b[i]-b[n/2]);
      |                             ^
main.c:46:24: error: subscripted value is neither array nor pointer nor vector
   46 |             ans1+=abs(b[i]-b[(n+1)/2-1]) ;
      |                        ^
main.c:46:29: error: subscripted value is neither array nor pointer nor vector
   46 |             ans1+=abs(b[i]-b[(n+1)/2-1]) ;
      |                             ^
Language: Java

import java.util.Arrays;
import java.util.Scanner;
public class Amed {

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

		for(int i=0; i<N; i++) {
			A[i] = sc.nextInt();
			A[i] -= i+1;
		}Arrays.sort(A);

		float amed = 0;
		if(N%2==0) {
			amed = A[N/2];
		}else {
			amed = (A[N/2] + A[N/2+1])/2;
		}

		int ans = 0;
		for(int j=0; j<N; j++) {
				ans += Math.abs(amed - A[j]);
		}

		System.out.println(ans);

	}

}


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

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

int main(){
  int N;
  vector<int>A;
  cin >>N;

  for (int i = 0; i<N;i++){
    int x;
    cin >>x;
    A.push_back(x-i);
  }

  sort(A.begin(),A.end());
  long long int ans= 0;

  int B = A[n/2+1];

  for (int i = 0; i< N;i++){
    ans += A[i]-b;
  }
  cout <<ans<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:13: error: 'n' was not declared in this scope
   18 |   int B = A[n/2+1];
      |             ^
a.cc:21:17: error: 'b' was not declared in this scope
   21 |     ans += A[i]-b;
      |                 ^
Language: C++

//
///
//
//
///
//

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll
#define ri(a,b,c) for(int a=(b);a<(c);++a)

#define fcout cout << fixed << setprecision(10)
int main(){
    //cin.tie(0);
    //ios::sync_with_stdio(false);

    int b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z;
    cin>>n;
    int a[n];
    ri(i,0,n){
        cin>>p;
        a[i]=p-i;
    }
    
    q=0;
    p=a[(n-1)/2];
        ri(i,0,n){
            q+=abs(a[i]-p);
        }
        ++m;
    cout<<q<<"\n";

    return 0;
}


Compiler output:
a.cc:11:13: error: '::main' must return 'int'
   11 | #define int ll
      |             ^~
a.cc:15:1: note: in expansion of macro 'int'
   15 | int main(){
      | ^~~
Language: C++

//
///
//
//
///
//

#include <bits/stdc++.h>
using namespace std;
#define int (long long)
#define ri(a,b,c) for(int a=(b);a<(c);++a)
typedef long long ll;
#define fcout cout << fixed << setprecision(10)
int main(){
    //cin.tie(0);
    //ios::sync_with_stdio(false);

    int b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z;
    cin>>n;
    int a[n];
    ri(i,0,n){
        cin>>p;
        a[i]=p-i;
    }
    
    q=0;
    p=a[(n-1)/2];
        ri(i,0,n){
            q+=abs(a[i]-p);
        }
        ++m;
    cout<<q<<"\n";

    return 0;
}


Compiler output:
a.cc:10:14: error: expected unqualified-id before 'long'
   10 | #define int (long long)
      |              ^~~~
a.cc:14:1: note: in expansion of macro 'int'
   14 | int main(){
      | ^~~
a.cc:10:14: error: expected ')' before 'long'
   10 | #define int (long long)
      |             ~^~~~
a.cc:14:1: note: in expansion of macro 'int'
   14 | int main(){
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  long n,s=0;
  vector<int> v;
  cin>>n;
  v.resize(n);
  for(int i=0;i<n;i++){cin>>v[i];v[i]-=i+1;}
  sort(v.begin(),v.end());
  for(int i=0;i<n;i++)sum+=abs(v[i]-v[n/2]);
  cout<<sum<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:23: error: 'sum' was not declared in this scope
   10 |   for(int i=0;i<n;i++)sum+=abs(v[i]-v[n/2]);
      |                       ^~~
a.cc:11:9: error: 'sum' was not declared in this scope
   11 |   cout<<sum<<endl;
      |         ^~~
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;
int a[200001];
int abs(int n) {
    if( n >= 0)
        return n;
    return -n;
}

int abssum(int n, int b) {
    int sum = 0;
    for (int i = 1; i <= n; i++)
        sum = sum + abs(a[i] - b);
    return sum;
}

int main()
{
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        a[i] =  a[i] - i;
    }
    std::sort(a + 1, a + n + 1);

    if (n % 2 == 1) {
        cout << abssum(n, a[n / 2 + 1]);
    }
    else {
        int x = a[n/2];
        int y = a[(n + 1) / 2]
        int k = std::min(x,y);
        int j = std::max(x,y);
        int b = k;
        int summin = abssum(n, k);
        for (int i = k + 1; i <= j; i++) {
            if (summin > abssum(n, i)) {
                b = i;
                summin = abssum(n, i);
            }
        }
        cout << abssum(n, b);
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:9: error: expected ',' or ';' before 'int'
   34 |         int k = std::min(x,y);
      |         ^~~
a.cc:36:17: error: 'k' was not declared in this scope
   36 |         int b = k;
      |                 ^
Language: C++

#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <set>
#include <stack>

#define REP(i,n) for(int i = 0; i < (n); ++i)
#define REPC(x,c) for(auto x:(c))
#define FOR(i, b, e) for(int i = (b); i < (e); ++i)
#define VS vector<string>
#define VI vector<int>
#define VVI vector<vector<int>>

#define ll long long

using namespace std;

int main() {
	int n;
	cin >> n;
	VI v(n);
	ll sum = 0;
	REP(i, n) {
		cin >> v[i];
		v[i] -= (i + 1);
		sum += v[i];
	}

	sort(v.begin(), v.end());
	int mid = n / 2;
	VI l = { v[mid-1], v[mid], v[mid+1]};
	

	ll mn = -1;
	REPC(c, l) {
		ll sum = 0;
		REPC(x, v) {
			sum += abs(x - c);
		}
		if (mn < 0) { mn = sum; }
		else { mn = min(sum, mn) };
	}
	cout << mn << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:43:41: error: expected ';' before '}' token
   43 |                 else { mn = min(sum, mn) };
      |                                         ^~
      |                                         ;
Language: C++

#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <set>
#include <stack>

#define REP(i,n) for(int i = 0; i < (n); ++i)
#define REPC(x,c) for(auto x:(c))
#define FOR(i, b, e) for(int i = (b); i < (e); ++i)
#define VS vector<string>
#define VI vector<int>
#define VVI vector<vector<int>>

#define ll long long

using namespace std;

int main() {
	int n;
	cin >> n;
	VI v(n);
	ll sum = 0;
	REP(i, n) {
		cin >> v[i];
		v[i] -= (i + 1);
		sum += v[i];
	}

	sort(v.begin(), v.end());
	int mid = n / 2;
	VI l = { v[mid-1], v[mid], v[mid+1]};
	

	ll mn = LONG_MAX;
	REPC(c, l) {
		ll sum = 0;
		REPC(x, v) {
			sum += abs(x - c);
		}
		mn = min(sum, mn);
	}
	cout << mn << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:17: error: 'LONG_MAX' was not declared in this scope
   36 |         ll mn = LONG_MAX;
      |                 ^~~~~~~~
a.cc:8:1: note: 'LONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    7 | #include <stack>
  +++ |+#include <climits>
    8 |
Language: Java

package codes;

import FastIO.InputReader;
import FastIO.OutputWriter;

import java.util.Arrays;

class Task3 {
    public void solve(int testNumber, InputReader in, OutputWriter out) {
        int N = in.nextInt();
        int a[] = in.nextIntArray(N);

        //Remove the incrementation from given array(the +1,+2,+3 part)
        for (int i = 0; i < N; i++) {
            a[i] -= (i+1);
        }

        //Sort the array
        Arrays.sort(a);
        int sumFromLeftSide[] = Arrays.copyOf(a,N);  //Summation of array a from left side
        for (int i = 1; i < N; i++) {
            sumFromLeftSide[i] += sumFromLeftSide[i-1];
        }
        int sumFromRightSide[] = Arrays.copyOf(a,N);  //Summation of array a from right side
        for (int i = N-2; i >= 0; i--) {
            sumFromRightSide[i] += sumFromRightSide[i+1];
        }

        //Divide the array into two parts and calculate minimum possible value of eqn A_1 - (b+1),  A_2 - (b+2)..
        long minAns = Integer.MAX_VALUE;
        for (int i = 0; i < N; i++) {
            int left = ((i+1)*a[i])-sumFromLeftSide[i];
            if(left < 0)
                throw new ArithmeticException("");
            int right = sumFromRightSide[i]-((N - i)*a[i]);
            minAns = Math.min(left+right,minAns);
        }
        out.println(minAns);
    }
}


Compiler output:
Main.java:3: error: package FastIO does not exist
import FastIO.InputReader;
             ^
Main.java:4: error: package FastIO does not exist
import FastIO.OutputWriter;
             ^
Main.java:9: error: cannot find symbol
    public void solve(int testNumber, InputReader in, OutputWriter out) {
                                      ^
  symbol:   class InputReader
  location: class Task3
Main.java:9: error: cannot find symbol
    public void solve(int testNumber, InputReader in, OutputWriter out) {
                                                      ^
  symbol:   class OutputWriter
  location: class Task3
4 errors
Language: C++

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

template <class Itr>
auto Median(Itr first,Itr last){
    typename iterator_traits<Itr>::difference_type n = distance(first, last);
    sort(first,last);
    if(n % 2 == 1){
        return *(first+n/2);
    } else {
        return ((*(first+n/2)+*(first+n/2-1))/2;
    }
}

signed main(){
    int n; cin >> n;
    vector<int>v(n);
    int ofs = 1;
    for(auto &i :v)
        cin >> i,i-=ofs++;
    int m = Median(v.begin(), v.end());
    int ans = 0;
    for(auto i :v)ans += abs(i-m);
    cout << ans << endl;
}




Compiler output:
a.cc:6:6: error: too many template-parameter-lists
    6 | auto Median(Itr first,Itr last){
      |      ^~~~~~
a.cc: In function 'int main()':
a.cc:22:13: error: 'Median' was not declared in this scope
   22 |     int m = Median(v.begin(), v.end());
      |             ^~~~~~
Language: C++

Snuke has an integer sequence A of length N.

He will freely choose an integer b. Here, he will get sad if Ai and b+i are far from each other. More specifically, the sadness of Snuke is calculated as follows:

abs(A1−(b+1))+abs(A2−(b+2))+…+abs(AN−(b+N))
Here, abs(x) is a function that returns the absolute value of x.

Find the minimum possible sadness of Snuke.


Compiler output:
a.cc:5:5: error: extended character − is not valid in an identifier
    5 | abs(A1−(b+1))+abs(A2−(b+2))+…+abs(AN−(b+N))
      |     ^
a.cc:5:19: error: extended character − is not valid in an identifier
    5 | abs(A1−(b+1))+abs(A2−(b+2))+…+abs(AN−(b+N))
      |                   ^
a.cc:5:29: error: extended character … is not valid in an identifier
    5 | abs(A1−(b+1))+abs(A2−(b+2))+…+abs(AN−(b+N))
      |                             ^
a.cc:5:35: error: extended character − is not valid in an identifier
    5 | abs(A1−(b+1))+abs(A2−(b+2))+…+abs(AN−(b+N))
      |                                   ^
a.cc:1:1: error: 'Snuke' does not name a type
    1 | Snuke has an integer sequence A of length N.
      | ^~~~~
Language: Java

import java.util.*;

public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int a[] = new int[n];
    for (int i=0;i<n;i++) {
      a[i] = sc.nextInt() - i - 1;
    }
    Arrays.sort(a);
    int s = 0;
    int t = 0;
    int b = a[n/2-(~(n%2))];
    for (int i=0;i<n;i++) {
      s += Math.abs(a[i] - b]);
    }
    System.out.println(s);
  }
}


Compiler output:
Main.java:16: error: ')' or ',' expected
      s += Math.abs(a[i] - b]);
                            ^
1 error
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <algorithm>
 
using namespace std;
 
int ans(vector<int> v, int b){
  int sum = 0;
  for(int i = 0; i < v.size(); i++){
    sum += abs(v[i] - b);
  }
  return sum;
}
 
int main(){
  int b;
  vector<long long> v;
  long long a, t, n;
  
  cin >> n;
  for(int i = 0; i < n; i++){ cin >> t; v.push_back(t - i - 1); }
  sort(v.begin(), v.end());
  b = v[n / 2];
  a = ans(v, b);
  cout << a << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:11: error: could not convert 'v' from 'vector<long long int>' to 'vector<int>'
   26 |   a = ans(v, b);
      |           ^
      |           |
      |           vector<long long int>
Language: C++

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

int main(int argc, char const *argv[])
{
    int  N;
    cin >> N;

    vector<int> A(N);

    for(int i=0; i<N; i++){
        cin >> A[i];
        A[i] -= (i+1);
    }
    long long ans = 0;

    sort(A.begin, A.end);

    int b = A[N/2];

    for(int i=0; i<N; i++){
        ans += abs(A[i] - b);
    }

    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:20:9: error: no matching function for call to 'sort(<unresolved overloaded function type>, <unresolved overloaded function type>)'
   20 |     sort(A.begin, A.end);
      |     ~~~~^~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:4:
/usr/include/c++/14/bits/stl_algo.h:4762:5: note: candidate: 'template<class _RAIter> void std::sort(_RAIter, _RAIter)'
 4762 |     sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~
/usr/include/c++/14/bits/stl_algo.h:4762:5: note:   template argument deduction/substitution failed:
a.cc:20:9: note:   couldn't deduce template parameter '_RAIter'
   20 |     sort(A.begin, A.end);
      |     ~~~~^~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:4793:5: note: candidate: 'template<class _RAIter, class _Compare> void std::sort(_RAIter, _RAIter, _Compare)'
 4793 |     sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
      |     ^~~~
/usr/include/c++/14/bits/stl_algo.h:4793:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:292:1: note: candidate: 'template<class _ExecutionPolicy, class _RandomAccessIterator, class _Compare> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::sort(_ExecutionPolicy&&, _RandomAccessIterator, _RandomAccessIterator, _Compare)'
  292 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp);
      | ^~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:292:1: note:   candidate expects 4 arguments, 2 provided
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note: candidate: 'template<class _ExecutionPolicy, class _RandomAccessIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::sort(_ExecutionPolicy&&, _RandomAccessIterator, _RandomAccessIterator)'
  296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last);
      | ^~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <algorithm>
 
using namespace std;
 
int ans(vector<int> v, int b){
  int sum = 0;
  for(int i = 0; i < v.size(); i++){
    sum += abs(v.at(i) - b);
  }
  return sum;
}
 
int main(){
  int mid;
  int n;
  int t, sum = 0;
  int index, a, b;
  
  vector<int> v;
  cin >> n;
  for(int i = 0; i < n; i++){
    cin >> t; v.push_back(t - (i + 1));
  }
  sort(v.begin(), v.end());
  if(v.size() % 2 != 0){
    index = v.at(v.size() / 2);
  }
  else {
    index = (v.at(v.size() / 2) + v.at(v.size() / 2 + 1) ) / 2;
  }
  a = ans(v, index);
  for (i = -2; i < 3; i++) {
    t = ans(v, index + i);
    a = a > t ? t : a;
  }
  cout << a << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:8: error: 'i' was not declared in this scope
   36 |   for (i = -2; i < 3; i++) {
      |        ^
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <algorithm>
 
using namespace std;
 
int ans(vector<int> v, int b){
  int sum = 0;
  for(int i = 0; i < v.size(); i++){
    sum += abs(v.at(i) - b);
  }
  return sum;
}
 
int main(){
  int mid;
  int n;
  int t, sum = 0;
  int index, a, b;
  
  vector<int> v;
  cin >> n;
  for(int i = 0; i < n; i++){
    cin >> t; v.push_back(t - (i + 1));
  }
  sort(v.begin(), v.end());
  if(v.size() % 2 != 0){
    index = v.at(v.size() / 2);
  }
  else {
    index = (v.at(v.size() / 2) + v.at(v.size() / 2 + 1) ) / 2;
  }
  a = ans(v, index)
  for (i = -2; i < 3; i++) {
    t = ans(v, index + i);
    a = a > t ? t : a;
  }
  cout << a << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:35:20: error: expected ';' before 'for'
   35 |   a = ans(v, index)
      |                    ^
      |                    ;
   36 |   for (i = -2; i < 3; i++) {
      |   ~~~               
a.cc:36:16: error: 'i' was not declared in this scope
   36 |   for (i = -2; i < 3; i++) {
      |                ^
Language: C++

#include<bitset>
#include<math.h>
#include<limits.h>
#include<iostream>
#include<string>
#include<vector>
#include<cstdio>
#include<sstream>
#include<list>
#include<queue>
#include<algorithm>
#include<functional>
#include<map>
#include<set>
#include<utility>
#include<initializer_list>
#include<tuple>
#include<regex>
using namespace std;
#define ull unsigned long long
#define ll long long
#define rep(i, a, n) for(int i=(a);i<(int)(n);i++)
#define repc(i, a, n) for(int i=(a);i<=(int)(n);i++)
#define all(t) t.begin(), t.end()
#define rall(t) t.rbegin(), t.rend()
#define mat(type, row, col, init) vector<vector<type>>(row, vector<type>(col, init));
#define Yes(cond) cout<<(cond? "Yes":"No")<<endl;
#define YES(cond) cout<<(cond? "YES":"NO")<<endl;
#define DBG(str) cerr<<(str)<<endl;


int main() {
	int n;
	cin >> n;
	vector<ll>a(n);
	ll sum = 0;
	rep(i, 0, n) {
		cin >> a[i];
		a[i] -= (i + 1);
		sum += a[i];
	}
	sort(all(a));
	int b = a[n / 2];
	ll sum = 0;
	rep(i, 0, n) {
		sum += abs(a[i] - b);

	}
	cout << sum;



	return 0;
}





Compiler output:
a.cc: In function 'int main()':
a.cc:44:12: error: redeclaration of 'long long int sum'
   44 |         ll sum = 0;
      |            ^~~
a.cc:36:12: note: 'long long int sum' previously declared here
   36 |         ll sum = 0;
      |            ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
int n;
  int mil=INT_MAX;
  int mal=INT_MIN;
  cin >> n;
  int a[n];
  for(int i=0;i<n;i++){
  	cin >> a[i];
  }
  double b=0;
  long long int xi=0,yi=0,ans=INT_MAX;
  for (int i=0;i<n;i++){
  		xi+=i+1;
    	yi+=a[i];
  	}
  b = floor((yi - xi)/n);
  for (int l=0;l<3;l++){
    int k=0;
  for (int i=0;i<n;i++){
  	k+= abs(a[i]- i-1 - round(b) +l );
  }
   ans =min(ans,k); 
  }
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:12: error: no matching function for call to 'min(long long int&, int&)'
   24 |    ans =min(ans,k);
      |         ~~~^~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:24:12: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   24 |    ans =min(ans,k);
      |         ~~~^~~~~~~
/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, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:24:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   24 |    ans =min(ans,k);
      |         ~~~^~~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int N;
long long int A[200005];

long long int kanashisa(int b) {
    long long int ret = 0;
    for (int i = 0; i < N; i++) {
        ret += abs(A[i]-(b+i+1));
    }
    return ret;
}

int main() {
    cin >> N;

    for (int i = 0; i < N; i++) { cin >> A[i]; }

    long long int high = int(2e9);
    long long int low = int(-2e9);

    int cnt = 0;
    int x = 0;

    while (true) {
        long long int mid = (high+low) / 2;
        long long int a = kanashisa(high);
        long long int b = kanashisa(low);
        long long int c = kanashisa(mid);

        if (a >= b && b <= c) {
            high = mid;
            low = low;
        }
        else if (a >= b && b >= c) {
            high = low;
            low = mid;
        }
        else if (b >= a && a <= c) {
            high = mid;
            low = high;
        }
        else if (b >= a && a >= c) {
            high = high;
            low = mid;
        }

        cnt++;

        else if (cnt == 100) {
            x = c;
            break;
        }
    }
    long long ans;
	for (int i = -10; i <= 10; i++) {
	    long long cur = kanashisa(x+i);
        if (i == -10) { ans = cur; };
        else { ans = min(ans, cur); }
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:54:9: error: 'else' without a previous 'if'
   54 |         else if (cnt == 100) {
      |         ^~~~
a.cc:63:9: error: 'else' without a previous 'if'
   63 |         else { ans = min(ans, cur); }
      |         ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <algorithm>
 
using namespace std;

int ans(vector<int> v, int b){
  int sum = 0;
  for(int i = 0; i < v.size(); i++){
    sum += abs(v.at(i) - b);
  }
  return sum;
}

int main(){
  int mid;
  int n;
  int t, sum = 0;
  int index, a, b;
  
  vector<int> v;
  cin >> n;
  for(int i = 0; i < n; i++){
    cin >> t; v.push_back(t - (i + 1));
  }
  sort(v.begin(), v.end());
  index = v.at(v.size() / 2);
  a = ans(v, index) 
  if(v.size() % 2 == 0) {
    index = v.at(v.size() / 2 + 1);
    b = ans(v, index)
    a = a > b ? b : a;
  }
  cout << a << endl;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:20: error: expected ';' before 'if'
   30 |   a = ans(v, index)
      |                    ^
      |                    ;
   31 |   if(v.size() % 2 == 0) {
      |   ~~
Language: C++

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

int a[200001];
int b[200001];

int main(void){
	int n;
	cin >> n;
		
	for(int i = 0; i < n; i++){
		cin >> a[i];
	}
	
	for(int i = 0; i < n; i++){
		b[i] = a[i] - (i + 1);
	}
	stable_sort(b, b + n);

	int _b = b[n / 2];

	int cost = 0, _cost = 0;
	for(int i = 0; i < n; i++){
		cost += a[i] - (_b + i + 1);
		__cost += a[i] - (_b - 1 + i + 1);
	}
	
	cost = min(_cost, cost);
	std::cout << cost << std::endl;


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:17: error: '__cost' was not declared in this scope; did you mean '_cost'?
   26 |                 __cost += a[i] - (_b - 1 + i + 1);
      |                 ^~~~~~
      |                 _cost
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <algorithm>
 
using namespace std;

int ans(vector<int> v, int b){
  int sum = 0;
  for(int i = 0; i < v.size(); i++){
    sum += abs(v.at(i) - (b + i + 1));
  }
  return sum;
}

int main(){
  int mid;
  int n;
  int t, sum = 0;
  int val;
  
  vector<int> v;
  cin >> n;
  for(int i = 0; i < n; i++){
    cin >> t; v.push_back(t - (i + 1));
  }
  sort(v.begin(), v.end());
  /*
  for (int i = -1; i < 2; i++){
  
  }
  */
  val = v.at(v.size() / 2);
  cout << ans(v, cout) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:35:18: error: cannot convert 'std::ostream' {aka 'std::basic_ostream<char>'} to 'int'
   35 |   cout << ans(v, cout) << endl;
      |                  ^~~~
      |                  |
      |                  std::ostream {aka std::basic_ostream<char>}
a.cc:9:28: note:   initializing argument 2 of 'int ans(std::vector<int>, int)'
    9 | int ans(vector<int> v, int b){
      |                        ~~~~^
Language: C++

#include <iostream>
#include <vector>
#include <math.h>
#include <algorithm>
using namespace std;
int main(int argc, char* argv[])
{
	int N,i;
	cin>>N;
	vector<int> A(N+1),B(N+1);
	int SumA=0;
	for (i=1;i<=N;i++){
		cin>>A[i];
		B[i]=A[i]-i;
	}
	//sort(B.begin(),B.end());
	int minV=INT_MAX;
	for (int j=1;j<=N;j++){
		int b=B[j];
		int Sum=0;
		for (i=1;i<=N;i++){
			Sum+=abs(A[i]-(b+i));
		}
		if (minV>Sum){
			minV=Sum;
		}
	}
	cout<<minV<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:17:18: error: 'INT_MAX' was not declared in this scope
   17 |         int minV=INT_MAX;
      |                  ^~~~~~~
a.cc:5:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    4 | #include <algorithm>
  +++ |+#include <climits>
    5 | using namespace std;
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>

using namespace std;

int main() {
  int N;
  cin >> N;
  vector<int> A(N);
  for (int i = 0; i < N; ++i) {
    cin >> A[i];
    A[i] -= (i + 1);
  }

  sort(A.begin(), A.end());
  
  int med1 = A[N/2], A[N/2 + 1];
  int result1 = 0, result2 = 0;
  for (int i = 0; i < N; ++i) {
    result1 += abs(A[i] - med1);
    result2 += abs(A[i] - med2);
  }

  if (result1 < result2) cout << result1 << endl;
  else cout << result2 << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:22: error: conflicting declaration 'int A [((N / 2) + 1)]'
   19 |   int med1 = A[N/2], A[N/2 + 1];
      |                      ^
a.cc:11:15: note: previous declaration as 'std::vector<int> A'
   11 |   vector<int> A(N);
      |               ^
a.cc:23:27: error: 'med2' was not declared in this scope; did you mean 'med1'?
   23 |     result2 += abs(A[i] - med2);
      |                           ^~~~
      |                           med1
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n,i,b,sum=0
  long long ans1=0;
  cin>>n;
  int a[n];
  for (i = 0; i < n; i++) {
    cin>>a[i];
    a[i]-=i;
    sum+=a[i];
  }
  sort(a,a+n);
  /*if(n%2==0)b=(a[n/2]+a[(n/2)-1])/2;
  else */b=a[(n-1)/2];
  for (i = 0; i < n; i++) {
    ans1+=abs(a[i]-b);
  }
  cout<<ans1<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: expected ',' or ';' before 'long'
    5 |   long long ans1=0;
      |   ^~~~
a.cc:17:5: error: 'ans1' was not declared in this scope
   17 |     ans1+=abs(a[i]-b);
      |     ^~~~
a.cc:19:9: error: 'ans1' was not declared in this scope
   19 |   cout<<ans1<<endl;
      |         ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <algorithm>
 
using namespace std;

 
int main(){
  int max = 30;
  int min = -30;
  int mid;
  int n;
  int t, sum = 0;
  
  vector<int> v;
  cin >> n;
  for(int i = 0; i < n; i++){
    cin >> t; v.push_back(abs(t - (i + 1)));
  }
  sort(v.begin(), v.end());
  for(i = 0; i < v.size(); i++){
    sum += v.at(i);
  }
  cout << sum / i << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:7: error: 'i' was not declared in this scope
   23 |   for(i = 0; i < v.size(); i++){
      |       ^
a.cc:26:17: error: 'i' was not declared in this scope
   26 |   cout << sum / i << endl;
      |                 ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
    // 1行目
    int n;
    cin >> n;
    
    int a[n];
    int c[n];
	a[0] = 0;
	c[0] = 0;	
	int b = 0;
	int d = 0;
	
    for (int i = 1; i < n + 1; i++) {
        a[i] = 0;
    	cin >> a[i];
	
    	c[i] = a[i] - b - i
    	if(c[i] < 0){
    		d = d - c[i]
    	}
    	else{
    		d = d + c[i]
    	}
    }
	
	// 結果
	cout << d << endl;
    
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:28: error: expected ';' before 'if'
   20 |         c[i] = a[i] - b - i
      |                            ^
      |                            ;
   21 |         if(c[i] < 0){
      |         ~~                  
a.cc:24:9: error: 'else' without a previous 'if'
   24 |         else{
      |         ^~~~
a.cc:25:29: error: expected ';' before '}' token
   25 |                 d = d + c[i]
      |                             ^
      |                             ;
   26 |         }
      |         ~
Language: C++

#include <iostream>
using namespace std;

int main()
{
	// 入力 
	int n;
	int a[200001];
	int b[200001];
	long long b_t = 0;

	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		b[i] = a[i] - i;
		b_t += b[i];
	}

	int ave;
	ave = (int)round((double)b_t / n);

	long long result = 0;
	for (int i = 1; i <= n; i++) {
		result = result + abs(b[i] - ave);
	}


	cout << result << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:20: error: 'round' was not declared in this scope
   20 |         ave = (int)round((double)b_t / n);
      |                    ^~~~~
Language: Java

import java.util.*;
 
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] array = new int[n];
        int[] array2 = new int[n];
        long ans = 0;
        long ans1 = 0;
        long ans2 = 0;
        long ans3 = 0;
        for (int i = 0; i < n; i++) {
            array[i] = sc.nextInt() - (i + 1);
            array2[i] = array[i];
        }
        Arrays.sort(array2);
        long med = array2[n / 2];
        for (int i = 0; i < n; i++) {
            ans1 += Math.abs(array[i] - (ave - 1));
        }
        for (int i = 0; i < n; i++) {
            ans2 += Math.abs(array[i] - ave);
        }
        for (int i = 0; i < n; i++) {
            ans3 += Math.abs(array[i] - (ave + 1));
        }
        ans = Math.min(ans1, ans2);
        ans = Math.min(ans, ans3);
        System.out.println(ans);
    }    
}

Compiler output:
Main.java:20: error: cannot find symbol
            ans1 += Math.abs(array[i] - (ave - 1));
                                         ^
  symbol:   variable ave
  location: class Main
Main.java:23: error: cannot find symbol
            ans2 += Math.abs(array[i] - ave);
                                        ^
  symbol:   variable ave
  location: class Main
Main.java:26: error: cannot find symbol
            ans3 += Math.abs(array[i] - (ave + 1));
                                         ^
  symbol:   variable ave
  location: class Main
3 errors
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main2() {
	int N, i, k, i2, keepmax, keepnumber;
	vector<int>A;
	vector<int>B;

	

	A.push_back(0);
	B.push_back(0);


	cin >> N;
	for (i = 1; i < N+1; i++) {
		
		cin >> k;
		A.push_back(k-i);
		B.push_back(1);

		
	    A[i] = k - i;

		if (i > 0) {
			for (i2 = 1; i2 < i; i2++) {
				if (A[i] == A[i2]) {
					B[i2]++;
					break;

				}

			}
		}


	}
	
	
	cout << "clear" << endl;

	keepmax = 0;
	keepnumber = 0;


	for (i = 1; i < N+1; i++) {
		if (B[i] >= keepmax) {
			keepmax = B[i];
			keepnumber = i;

		}

	}
	int b,sum;
	b = A[keepnumber];

	for (i = 0; i < N; i++) {
		sum = abs(A[i] -  b);

	}
	cout << sum;


	return 0;

}

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: Java

import java.util.*;
 
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] array = new int[n];
        int[] array2 = new int[n];
        long sum = 0;
        long ans = 0;
        long ans1 = 0;
        long ans2 = 0;
        long ans3 = 0;
        for (int i = 0; i < n; i++) {
            array[i] = sc.nextInt() - (i + 1);
            array2[i] = array[i];
            sum += array[i];
        }
        Array.sort(array2);
        long ave = array2[n / 2];
        for (int i = 0; i < n; i++) {
            ans1 += Math.abs(array[i] - (ave - 1));
        }
        for (int i = 0; i < n; i++) {
            ans2 += Math.abs(array[i] - ave);
        }
        for (int i = 0; i < n; i++) {
            ans3 += Math.abs(array[i] - (ave + 1));
        }
        ans = Math.min(ans1, ans2);
        ans = Math.min(ans, ans3);
        System.out.println(ans);
    }    
}

Compiler output:
Main.java:19: error: cannot find symbol
        Array.sort(array2);
        ^
  symbol:   variable Array
  location: class Main
1 error
Language: C

#include <stdio.h>

int main(void){
  int N, i, sum=0;
  scanf("%d", &N);
  int array[N];
  for(i=0; i<N; i++){
    scanf("%d", &array[i]);
  }
  for(i=0; i<N; i++){
    array[i] -= (i+1);
  }
  for(i=0; i<N; i++){
    if(array[i] < 0){
        array[i] = 0-array[i];
    }
  }
  for(i=0; i<N; i++){
    sum += array[i];
  }
  int temp = sum;
  while(1){
    if(array[i] <= 0){
        sum += 1;
    }else{
      sum -= 1
    }
    if(sum == temp){
      break;
    }
  }
  printf("%d", sum);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:26:15: error: expected ';' before '}' token
   26 |       sum -= 1
      |               ^
      |               ;
   27 |     }
      |     ~
Language: C++

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

int main(){
    int N;
    cin >> N;
    int tmp=0, ans=INT_MAX;
    int b= -N, i;
    int max = 0;
    int a=0;
    int max = INT_MIN;
    bool flag = true;

    int A[N];
    for(i=0;i< N;i++){
        cin >> A[i];
        if (max < A[i]){
            max = A[i];
        }
    }

    while(flag){
        flag = false;
        tmp = 0;
        for(i= 0; i<N; i++){
            a = A[i] - i - 1 - b;
            if(a < 0){
                flag = true;
                a = abs(a);
            }
            tmp += a;
        }
        if (ans > tmp){
            ans = tmp;
        }
        b++;

    }
    cout << ans << endl;
    return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: redeclaration of 'int max'
   13 |     int max = INT_MIN;
      |         ^~~
a.cc:11:9: note: 'int max' previously declared here
   11 |     int max = 0;
      |         ^~~
Language: C

#include <stdio.h>
int main (void){
  int n, x = 0,xx = 0, tmp, b,kanashimi, a[20000] = {};

  scanf("%d", &n);

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

  for(int j = -20000; j < 20000;j++);
  b = j;

  
  for(int i = 0; i < n; i++){
    x += (a[i]-(b+i+1));
  }

  do{
      kanashimi = x;
    }while(xx == 1);
  
  if(x < kanashimi){
    kanashimi = x;
  }
}
  printf("%d\n", kanashimi);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:12:7: error: 'j' undeclared (first use in this function)
   12 |   b = j;
      |       ^
main.c:12:7: note: each undeclared identifier is reported only once for each function it appears in
main.c: At top level:
main.c:27:10: error: expected declaration specifiers or '...' before string constant
   27 |   printf("%d\n", kanashimi);
      |          ^~~~~~
main.c:27:18: error: unknown type name 'kanashimi'
   27 |   printf("%d\n", kanashimi);
      |                  ^~~~~~~~~
main.c:28:5: error: expected identifier or '(' before 'return'
   28 |     return 0;
      |     ^~~~~~
main.c:29:1: error: expected identifier or '(' before '}' token
   29 | }
      | ^
Language: C++


#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>
#include <numeric>

#define rep(i, n) for(int i=0;i<(int)(n);i++)
#define pb(a) push_back(a)
#define MAX(a, b) ((a < b)?b:a)
#define MIN(a, b) ((a > b)?b:a)

typedef long long int ll;
typedef ungigned long long int ull;

using namespace std;

int n;
vector<int> a;
int sum_a;

ull snuke_pm(int b)
{
	ull sum_a = 0;

	rep(i, n)
	{
		sum_a += abs(a[i] - (b));
	}

	return sum_a;
}

int main()
{
	cin >> n;

	sum_a = 0;
	a.reserve(n);
	rep(i, n)
	{
		int value;
		cin >> value;
		a.pb(value - i - 1);
	}
	auto ave = std::accumulate(std::begin(a), std::end(a), 0.0) / a.size();

	//for(int i = a[0]; i <= a[n - 1] / 2; i++)
	//{
	//	ll sum = snuke_pm(i);
	//	if ( min > sum ) min = sum;
	//}

	cout << MIN(MIN(snuke_pm((int)ave), snuke_pm((int)ave + 1)), snuke_pm((int)ave - 1)) << endl;

	return 0;
}


Compiler output:
a.cc:15:9: error: 'ungigned' does not name a type; did you mean 'unsigned'?
   15 | typedef ungigned long long int ull;
      |         ^~~~~~~~
      |         unsigned
a.cc:23:1: error: 'ull' does not name a type; did you mean 'll'?
   23 | ull snuke_pm(int b)
      | ^~~
      | ll
a.cc: In function 'int main()':
a.cc:55:25: error: 'snuke_pm' was not declared in this scope
   55 |         cout << MIN(MIN(snuke_pm((int)ave), snuke_pm((int)ave + 1)), snuke_pm((int)ave - 1)) << endl;
      |                         ^~~~~~~~
a.cc:12:21: note: in definition of macro 'MIN'
   12 | #define MIN(a, b) ((a > b)?b:a)
      |                     ^
a.cc:55:21: note: in expansion of macro 'MIN'
   55 |         cout << MIN(MIN(snuke_pm((int)ave), snuke_pm((int)ave + 1)), snuke_pm((int)ave - 1)) << endl;
      |                     ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int a[200000];
 
int main(){
        int x;
        int n;
        int m=0;
        int sum=0;
        cin>>n;
        for(int i=0;i<n;i++){
                cin>>a[i];
                a[i]-=(i+1);
                if(a[i]<0){
                        m++;
                }
                sum+=a[i];
        }
        int b=sum/n;
        m=0;
        sum=0;
        for(int i=0;i<n;i++){
               a[i]-=b;
               if(a[i]<0){
                       m++;
              }
             sum+=abs(a[i]);
        }
        k=n-m-m;
        
        if(k>0){
        while(k>0){
                int s=0;
                m=0;
                for(int i=0;i<n;i++){
                        a[i]--;
                        if(a[i]<0){
                                m++;
                        }
                        s+=abs(a[i]);
                }
                k=n-m-m;
                if(s<sum){
                        sum=s;
                }
    }
        cout<<sum;
        }
        else{
        while(k<0){
                int s=0;
                m=0;
                for(int i=0;i<n;i++){
                        a[i]++;
                        if(a[i]<0){
                                m++;
                        }
                        s+=abs(a[i]);
                }
                k=n-m-m;
                if(s<sum){
                        sum=s;
                }
    }
        cout<<sum;
        }
 
        return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:9: error: 'k' was not declared in this scope
   29 |         k=n-m-m;
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(void){
    // Your code here!
    int n,j;
    int a[300000];
    cin >> n;
    int t=0;
    for(j=1;j<n+1;++j){
        cin >> a[j];
        t+=a[j]-j;
    }
     int num[1000000000] = {0}; 
    for (int i = 1; i < n; ++i) {
        num[a[i]-i+200000]++;  
    }
    int l=0,h=0;
    for (int i = -200000 i < 1000000000; ++i) {
        if(num[i]>l){
            l=num[i];
            h=num[i];
        }   
    }

    int t1,t2,t3,t4,t5,t6,s,m;
    s=t/n;
    t1=0;t2=0;t3=0;t4=0;t5=0;
    for(j=1;j<n+1;j++){
        t1+=abs(a[j]-j-1-s);
        t2+=abs(a[j]-j-s);
        t3+=abs(a[j]-j-s+1);
        t4+=abs(a[j]-j-s+2);
        t5+=abs(a[j]-j-s-2);
        t6+=abs(a[j]-j-h+200000);
    }
    m=t1;
    if(t2<m) m=t2;
    if(t3<m) m=t3;
    if(t4<m) m=t4;
    if(t5<m) m=t5;
    if(t6<m) m=t6;
    cout << int(m) <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:25: error: expected ';' before 'i'
   18 |     for (int i = -200000 i < 1000000000; ++i) {
      |                         ^~
      |                         ;
Language: C++

#include <bits/stdc++.h>
#define int long long

using namespace std;
using LL = long long;
using P = pair<int, int>;

#define FOR(i, a, n) for(int i = (int)(a); i < (int)(n); ++i)
#define REP(i, n) FOR(i, 0, n)

#define pb(a) push_back(a)
#define all(x) (x).begin(),(x).end()

const int INF = (int)1e9;
const LL INFL = (LL)1e15;
const int MOD = 1e9 + 7;

int dy[]={0, 0, 1, -1, 0};
int dx[]={1, -1, 0, 0, 0};

signed main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n;
    cin >> n;
    vector<int> a(n), b(n);
    REP(i, n) cin >> a[i];

    REP(i, n) {
        b[i] = (a[i] - (i+1));
    }
    
    int sum = 0;
    REP(i, n) sum += b[i];
    
    vector<int> ave(3);
    int ave[0] = sum / n, ave[1] = ceil((double)sum / n), ave[2] = floor((double)sum / n);
    sort(all(ave));
    ave.pb(ave[0]-1);
    ave.pb(ave[2]+1);
    int ans1 = 0, ans2 = 0, ans3 = 0, ans4 = 0, ans5 = 0;
    REP(i, n) ans1 += abs(b[i] - ave[0]);
    REP(i, n) ans2 += abs(b[i] - ave[1]);
    REP(i, n) ans3 += abs(b[i] - ave[2]);
    REP(i, n) ans4 += abs(b[i] - ave[3]);
    REP(i, n) ans5 += abs(b[i] - ave[4]);
    cout << min({ans1, ans2, ans3, ans4, ans5}) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:38:9: error: conflicting declaration 'long long int ave [0]'
   38 |     int ave[0] = sum / n, ave[1] = ceil((double)sum / n), ave[2] = floor((double)sum / n);
      |         ^~~
a.cc:37:17: note: previous declaration as 'std::vector<long long int> ave'
   37 |     vector<int> ave(3);
      |                 ^~~
a.cc:38:27: error: conflicting declaration 'long long int ave [1]'
   38 |     int ave[0] = sum / n, ave[1] = ceil((double)sum / n), ave[2] = floor((double)sum / n);
      |                           ^~~
a.cc:37:17: note: previous declaration as 'std::vector<long long int> ave'
   37 |     vector<int> ave(3);
      |                 ^~~
a.cc:38:59: error: conflicting declaration 'long long int ave [2]'
   38 |     int ave[0] = sum / n, ave[1] = ceil((double)sum / n), ave[2] = floor((double)sum / n);
      |                                                           ^~~
a.cc:37:17: note: previous declaration as 'std::vector<long long int> ave'
   37 |     vector<int> ave(3);
      |                 ^~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int N;
long long int A[200005];

long long int kanashisa(int b) {
    long long int ret = 0;
    for (int i = 0; i < N; i++) {
        ret += abs(A[i]-(b+i+1));
    }
    return ret;
}

int main() {
    cin >> N;

    for (int i = 0; i < N; i++) { cin >> A[i]; }

    long long int high = 2e9, low = -2e9;

    int cnt = 0;

    while (true) {
        long long int mid = (high+low) / 2;
        long long int a = kanashisa(high);
        long long int b = kanashisa(low);
        long long int c = kanashisa(mid);

        if (a >= b && b <= c) {
            high = mid;
            low = low;
        }
        else if (a >= b && b >= c) {
            high = low;
            low = mid;
        }
        else if (b => a && a <= c) {
            high = mid;
            low = high;
        }
        else if (b => a && a >= c) {
            high = high;
            low = mid;
        }

        cnt++;
        if (a == 0 || b == 0 || c == 0) {
            cout << "0" << endl;
            break;
        }
        else if (cnt == 1000) {
            cout << min(a, min(b, c)) << endl;
            break;
        }
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:41:21: error: expected primary-expression before '>' token
   41 |         else if (b => a && a <= c) {
      |                     ^
a.cc:45:21: error: expected primary-expression before '>' token
   45 |         else if (b => a && a >= c) {
      |                     ^