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

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
//#include <string>

int compare_int(const void *a, const void *b)
{
	if ((*(long long*)a - *(long long*)b) > 0) {
		return 1;
	}
	else if (*(long long*)a - *(long long*)b == 0){
		return 0;
	}
	else {
		return -1;
	}
}

int main(void) {
	int n, i;
	double ave = 0.0;
	long long A[200000], min = 100000000, max = 0;
	scanf("%d", &n);
	for (i = 0; i < n; i++) {
		scanf("%lld", &A[i]);
		A[i] = A[i] - i - 1;
		//sub[i] = A[i] - i;
		/*if (min > A[i]) {
			min = A[i];
		}
		if (max < A[i]) {
			max = A[i];
		}*/

		//ave = ((i * ave) + (A[i]-i-1)) / (i + 1);
	}
	qsort(A, n, sizeof(long long), compare_int);
	long long q;
    int po;
	if (n % 2) {//even
		q = (A[n / 2] + A[n / 2 - 1]) / 2;
        po = (A[n / 2] + A[n / 2 - 1]) % 2;
		if (A[n / 2] % 2 && A[n / 2 - 1] % 2) {
			if (A[n / 2] < 0 && A[n / 2 - 1] < 0) {
				q--;
			}
			else {
				q++;
			}
		}
	}
	else {//odd
		q = A[n / 2];
	}
		/*
	long long avez = (long long)ave;
	if (ave < 0)avez--;
	double small = ave - (double)avez;
	if (avez > 0) {
		if (small >= 0.5) {
			avez++;
		}
	}
	else {
		if (small >= 0.5) {
			avez--;
		}
	}
	/*if ((1.0 - small) > 0.5) {
		avez++;
	}
	
	long long sum = 0;
	for (i = 0; i < n; i++) {
		sum += abs(A[i] - i - 1 - avez);
	}*/
    long long ans = 1145148931919810;
    for(int j = 0; j < po + 1; j++){
      long long sum = 0;
      for (i = 0; i < n; i++) {
        sum += abs(A[i] - (q + j));
      }
      if(ans > sum){
        ans = sum;
      }
    }
    printf("%lld\n", sum);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:87:22: error: 'sum' was not declared in this scope
   87 |     printf("%lld\n", sum);
      |                      ^~~
Language: C++

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
//#include <string>

int compare_int(const void *a, const void *b)
{
	if ((*(long long*)a - *(long long*)b) > 0) {
		return 1;
	}
	else if (*(long long*)a - *(long long*)b == 0){
		return 0;
	}
	else {
		return -1;
	}
}

int main(void) {
	int n, i;
	double ave = 0.0;
	long long A[200000], min = 100000000, max = 0;
	scanf("%d", &n);
	for (i = 0; i < n; i++) {
		scanf("%lld", &A[i]);
		A[i] = A[i] - i - 1;
		//sub[i] = A[i] - i;
		/*if (min > A[i]) {
			min = A[i];
		}
		if (max < A[i]) {
			max = A[i];
		}*/

		//ave = ((i * ave) + (A[i]-i-1)) / (i + 1);
	}
	qsort(A, n, sizeof(long long), compare_int);
	long long q;
    int po;
	if (n % 2) {//even
		q = (A[n / 2] + A[n / 2 - 1]) / 2;
        po = (A[n / 2] + A[n / 2 - 1]) % 2
		if (A[n / 2] % 2 && A[n / 2 - 1] % 2) {
			if (A[n / 2] < 0 && A[n / 2 - 1] < 0) {
				q--;
			}
			else {
				q++;
			}
		}
	}
	else {//odd
		q = A[n / 2];
	}
		/*
	long long avez = (long long)ave;
	if (ave < 0)avez--;
	double small = ave - (double)avez;
	if (avez > 0) {
		if (small >= 0.5) {
			avez++;
		}
	}
	else {
		if (small >= 0.5) {
			avez--;
		}
	}
	/*if ((1.0 - small) > 0.5) {
		avez++;
	}
	
	long long sum = 0;
	for (i = 0; i < n; i++) {
		sum += abs(A[i] - i - 1 - avez);
	}*/
    long long ans = 1145148931919810;
    for(int j = 0; j < po + 1; j++){
      long long sum = 0;
      for (i = 0; i < n; i++) {
          sum += abs(A[i] - (q + j));
      }
      if(ans > sum) ans = sum;
    }
	printf("%lld\n", sum);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:42:43: error: expected ';' before 'if'
   42 |         po = (A[n / 2] + A[n / 2 - 1]) % 2
      |                                           ^
      |                                           ;
   43 |                 if (A[n / 2] % 2 && A[n / 2 - 1] % 2) {
      |                 ~~                         
a.cc:85:26: error: 'sum' was not declared in this scope
   85 |         printf("%lld\n", sum);
      |                          ^~~
Language: C++

/*
 * parasol 
 */
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <algorithm>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <time.h>
using namespace std;
#define ll long long
const ll maxn = 2e5+5;
const ll mod = 1e9+7;
const double eps = 1e-9;
const double pi = acos(-1.0);
const ll inf = 0x3f3f3f3f;

ll a[maxn];
ll n;

int main() {
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    cin >> n;
    ll sum = 0;
    for(ll i = 1; i <= n; i++){
        scanf("%lld", &a[i]);
        a[i] -= i;
        sum += a[i];
    }    
    
    ll x = sum/n;
    //printf("+++ %lld \n", sum);
    
    for(ll i = x-1000; i <= x+1000; i++){
        ll s = 0;
        for(ll j = 1; j <= n; j++){
            s += abs(a[j]-i);
        }    
        ans = min(ans, s);
    } 
    printf("%lld\n", ans);
    
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:47:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   47 |         ans = min(ans, s);
      |         ^~~
      |         abs
a.cc:49:22: error: 'ans' was not declared in this scope; did you mean 'abs'?
   49 |     printf("%lld\n", ans);
      |                      ^~~
      |                      abs
Language: C++

#include<bits/stdc++.h>
const int MAXN = 3e5;
int N;
int A[MAXN];
int main() {
scanf("%d", &N);
for (int i = 0; i < N; i++) scanf("%d", &A[i]);
for (int i = 0; i < N; i++) A[i] -= i;
std::sort(A, A + N);
int b = A[N / 2];
long long r = 0;
for (int i = 0; i < N; i++) r += abs(A[i] - b);
std::cout << res << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:14: error: 'res' was not declared in this scope
   13 | std::cout << res << '\n';
      |              ^~~
Language: C++

#include<bits/stdc++.h>
const int MAXN = 3e5;
int N;
int A[MAXN];
int main() {
scanf("%d", &N);
for (int i = 0; i < N; i++) scanf("%d", &A[i]);
for (int i = 0; i < N; i++) A[i] -= i;
sort(A, A + N);
int b = A[N / 2];
long long r = 0;
for (int i = 0; i < N; i++) r += abs(A[i] - b);
std::cout << res << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:1: error: 'sort' was not declared in this scope; did you mean 'std::sort'?
    9 | sort(A, A + N);
      | ^~~~
      | std::sort
In file included from /usr/include/c++/14/algorithm:86,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note: 'std::sort' declared here
  296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last);
      | ^~~~
a.cc:13:14: error: 'res' was not declared in this scope
   13 | std::cout << res << '\n';
      |              ^~~
Language: C++

#include<bits/stdc++.h>
const int MAXN = 3e5;
int N;
int A[MAXN];
int main() {
scanf("%d", &N);
for (int i = 0; i < N; i++) scanf("%d", &A[i]);
for (int i = 0; i < N; i++) A[i] -= i;
sort(A, A + N);
int b = A[N // 2];
long long r = 0;
for (int i = 0; i < N; i++) r += abs(A[i] - b);
std::cout << res << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:1: error: 'sort' was not declared in this scope; did you mean 'std::sort'?
    9 | sort(A, A + N);
      | ^~~~
      | std::sort
In file included from /usr/include/c++/14/algorithm:86,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note: 'std::sort' declared here
  296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last);
      | ^~~~
a.cc:10:12: error: expected ']' before 'long'
   10 | int b = A[N // 2];
      |            ^
      |            ]
   11 | long long r = 0;
      | ~~~~        
a.cc:11:1: error: expected ',' or ';' before 'long'
   11 | long long r = 0;
      | ^~~~
a.cc:12:29: error: 'r' was not declared in this scope
   12 | for (int i = 0; i < N; i++) r += abs(A[i] - b);
      |                             ^
a.cc:13:14: error: 'res' was not declared in this scope
   13 | std::cout << res << '\n';
      |              ^~~
Language: C++

#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;    
int main()
{
    int n;
    cin>>n;
    int a[n];
    int x=-1;
    int ss=0;
    int c;
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
        c=a[0];
        c=max(c,a[i-1]);
    }
    int cnt[n];
    memset(cnt,0,sizeof(cnt));
    while(x<=c)
    {
        x++;
        for(int i=1;i<=n;i++)
        {
                cnt[ss]+=abs(a[i-1]-(x+i));
        }
        ss++;
    }
    sort(cnt,cnt+n);
    cout<<cnt[0]<<endl;
    //system("pause");
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:5: error: 'memset' was not declared in this scope
   39 |     memset(cnt,0,sizeof(cnt));
      |     ^~~~~~
a.cc:23:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
   22 | #include <iterator>
  +++ |+#include <cstring>
   23 | using namespace std;
Language: C++

#include <bits/stdc++.h>
#define MAX 500111
#define mod 1000000007
const long long  inf = 2000000000000;
using namespace std;

long long a[MAX] = {0},n,mn = inf;

long long get(long long x){
    long long ans = 0 ;
    for(int i = 0; i < n; i++) ans += abs(x - a[i]);
    return ans;
}
int main(){ 
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);  
    cin>>n;
    for(int i = 0; i  < n ; i++){cin>>a[i];a[i] -= (i+1);}
    sort(a,a+n);
    for(int i = max(n/2 - 1,0)  ; i <= min(n/2 + 1,n-1) ; i++)mn = min(get(a[i]),mn);
    cout<<mn;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:20: error: no matching function for call to 'max(long long int, int)'
   19 |     for(int i = max(n/2 - 1,0)  ; i <= min(n/2 + 1,n-1) ; i++)mn = min(get(a[i]),mn);
      |                 ~~~^~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:19:20: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   19 |     for(int i = max(n/2 - 1,0)  ; i <= min(n/2 + 1,n-1) ; i++)mn = min(get(a[i]),mn);
      |                 ~~~^~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:19:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   19 |     for(int i = max(n/2 - 1,0)  ; i <= min(n/2 + 1,n-1) ; i++)mn = min(get(a[i]),mn);
      |                 ~~~^~~~~~~~~~~
Language: C++

#include<iostream>

int main(){
    int n;
    std::cin >> n;
    long long a[n];
    for(int i=0;i<n;i++){
        std::cin >> a[i];
        a[i] -= i+1;
    }
    std::sort(a, a+n);
    long long b = a[n/2], ans = 0LL;
    for(int i=0;i<n;i++){
        ans += abs(a[i] - b);
    }
    std::cout << ans << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:10: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   11 |     std::sort(a, a+n);
      |          ^~~~
      |          qsort
Language: C++

#include <string.h>
#include <algorithm>
#include <set>
#include <iostream>
#include <map>
#include <queue>
#include <bitset>
#include <time.h>
#include <vector>

using namespace std;

const int maxN = 2e5 + 6, MOD = 998244353, lg = 23;
typedef long long ll;
typedef pair<ll, ll> ii;
typedef pair<ll, ii> iii;
#define fi first
#define se second
#define th second.second

int n;
ll arr[maxN];
ll ac[maxN];

int main() {
    ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
    
    cin >> n;
    
    for(int i= 0; i < n; i++){
        cin >> arr[i];
        arr[i] -= i + 1;
    }
    
    ll bes = LLONG_MAX;
    
    sort(arr, arr + n);
    
    for(int i = n - 1; i >= 0; i--){
        ac[i] = arr[i];
        ac[i] += ac[i + 1];
    }
    
    ll negs = 0;
    
    for(int i = 0; i < n; i++){
        ll cur = abs(arr[i] * i - negs) + ac[i] - (arr[i] * (n - i));
        bes = min(bes, cur);
        negs += arr[i];
    }
    
    cout << bes << '\n';
}



Compiler output:
a.cc: In function 'int main()':
a.cc:35:14: error: 'LLONG_MAX' was not declared in this scope
   35 |     ll bes = LLONG_MAX;
      |              ^~~~~~~~~
a.cc:8:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    7 | #include <bitset>
  +++ |+#include <climits>
    8 | #include <time.h>
Language: Java

import java.util.Scanner;
public class LinearApproximation {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		int[] a = new int[n];
		for(int i = 0; i < n; i++) {
			a[i] = scan.nextInt();
		}
		int max = 0;
		for(int value : a) {
			if(max < value)
				max = value;
		}
		int ans = 0;
		for(int i = 0; i < n; i++) {

			ans += Math.abs(a[i] - (-1 * Math.abs(max - n) + (i+1)));
		}
		System.out.println(ans);
	}
}


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

import java.util.Scanner;
public class LinearApproximation {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		int[] a = new int[n];
		for(int i = 0; i < n; i++) {
			a[i] = scan.nextInt();
		}
		int max = 0;
		for(int value : a) {
			if(max < value)
				max = value;
		}
		int ans = 0;
		for(int i = 0; i < n; i++) {
			ans += Math.abs(a[i] - ((max - n) + i+1));
		}
		System.out.println(ans);
	}
}


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

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

#define int long int

using namespace std;

int main()
{
    int b;
    int ans = 0;

    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());

    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:6:18: error: '::main' must return 'int'
    6 | #define int long int
      |                  ^~~
a.cc:10:1: note: in expansion of macro 'int'
   10 | int main()
      | ^~~
Language: C++

#include <cmath>
#include <iostream>
#include <vector>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <stack>
#include <tuple>
#include <bitset>
#include <algorithm>
#include <utility>
#include <iomanip>

#define int long long int
#define rep(i, n) for(int i = 0; i < (n); ++i)

using namespace std;

typedef pair<int, int> P;

const int INF = 1e15;
const int MOD = 1e9+7;

int f(const vector<int>& a, int b){
    int x = 0;
    rep(i, (int)a.size()){
        x += abs(a[i] - (b + i+1));
    }
    return x;
}

signed main(){
    int n;
    cin >> n;

    vector<int> a(n);
    rep(i, n){
        cin >> a[i];
    }

    int l = -300000;
    int r = 300000;
    while(r - l > 1){
        int m = (r + l) / 2;
        int x1 = f(a, m);
        int x2 = f(a, m - 1);
        if(x1 - x2 > 0){
            l = m1;
        }else{
            r = m1;
        }
    }
    int ans = f(a, l);
    cout << ans << endl

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:49:17: error: 'm1' was not declared in this scope; did you mean 'x1'?
   49 |             l = m1;
      |                 ^~
      |                 x1
a.cc:51:17: error: 'm1' was not declared in this scope; did you mean 'x1'?
   51 |             r = m1;
      |                 ^~
      |                 x1
a.cc:55:24: error: expected ';' before 'return'
   55 |     cout << ans << endl
      |                        ^
      |                        ;
   56 | 
   57 |     return 0;
      |     ~~~~~~
Language: C++

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
#define rep(i,l,r) for(ll i=(l);i<(r);i++)
int main(){
    int n;
    cin>>n;
    int a[n];
    rep(i,0,n){
        cin>>a[i];
        a[i]-=i;//あらかじめiを引いておきましょう
    }
    sort(a,a+n);
    int median;
    median=a[(n-1)/2];
    cnt=0;
    rep(i,0,n)cnt+=abs(a[i]-median);//絶対値abs
    cout<<cnt;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:5: error: 'cnt' was not declared in this scope; did you mean 'int'?
   16 |     cnt=0;
      |     ^~~
      |     int
Language: C++

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

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

    sort(A.begin(), A.end());
    int center = A[N/2];
    int ans = 0;
    for (int i = 0 ; i < N ; i++) {
        ans += abs(center - A[i]);
    }
    
    cout<<ans<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |     sort(A.begin(), A.end());
      |     ^~~~
      |     short
Language: C++

#include <bits/stdc++.h>
using namespace std;
int n, a[200005]; 
int main() {
	scanf ("%d", &n); 
	for (int i = 0; i < n; i ++) {
		cin >> a[i]; 
		a[i] -= i + 1; 
	}
	sort (a, a + n); 
	ll ans = 0;
	for (int i = 0; i < n; i ++)
		ans += abs(a[i] - a[n >> 1]); 
	printf ("%lld\n", ans);
	return 0; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'll' was not declared in this scope
   11 |         ll ans = 0;
      |         ^~
a.cc:13:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   13 |                 ans += abs(a[i] - a[n >> 1]);
      |                 ^~~
      |                 abs
a.cc:14:27: error: 'ans' was not declared in this scope; did you mean 'abs'?
   14 |         printf ("%lld\n", ans);
      |                           ^~~
      |                           abs
Language: Java

import java.util.*;
 
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int length = sc.nextInt();
        ArrayList list = new ArrayList();
        while(sc.hasNext()){
            list.add(sc.nextInt());
        }
        System.out.println(calculateAnswer(length,list));
    }
    private static int calculateAnswer(int length,ArrayList<Integer> list){
        ArrayList<Integer> newlist = new ArrayList<Integer>();
        long result = 0;
        for(int i = 1;i<=length;i++){
            newlist.add((list.get(i-1))-i);
        }
        Collections.sort(newlist);
        int b = newlist.get(length/2);
        for(int i = 1;i<=length;i++){
            result += Math.abs(list.get(i-1)-(b+i));
        }
        return result;
    }
}

Compiler output:
Main.java:24: error: incompatible types: possible lossy conversion from long to int
        return result;
               ^
Note: Main.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
Language: C++

#include <algorithm>
#include <string>
#include <vector>
#include <queue>
#include <stack>
#include <map>
#include <utility>
#include <cmath>
using namespace std;

using ll = long long;

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

  sort(a, a+n);
 
  ll m = (n%2 == 1)? (ll)((a[n/2] + a[n/2-1])/2 + 0.5): a[n/2];

  ll s = 0;
  for(int i=0; i<n; i++){
    s += abs(a[i]-m);
  }

  cout << s << endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:10: error: 'cin' was not declared in this scope
   14 |   int n; cin >> n;
      |          ^~~
a.cc:9:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    8 | #include <cmath>
  +++ |+#include <iostream>
    9 | using namespace std;
a.cc:30:3: error: 'cout' was not declared in this scope
   30 |   cout << s << endl;
      |   ^~~~
a.cc:30:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:30:16: error: 'endl' was not declared in this scope
   30 |   cout << s << endl;
      |                ^~~~
a.cc:9:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    8 | #include <cmath>
  +++ |+#include <ostream>
    9 | using namespace std;
Language: C++

lude <bits/stdc++.h>

using namespace std;

#define rep(i, n) for (int i = 0; i < n; i++)
#define reps(i, n, m) for (int i = n; i < m; i++)

int N;
long long A[200000];
long long sum[200001];

inline long long cu(long long x)
{
	int pos = lower_bound(A, A + N, x) - A;
	long long t = pos * x - sum[pos];
	t += sum[N] - sum[pos] - (N - pos) * x;
	return t;
}



int main()
{
	cin >> N;
	rep (i, N) {
		cin >> A[i];
		A[i] -= i - N;
	}
	sort(A, A + N);
	reps(i, 1, N + 1) {
		sum[i] = sum[i-1] + A[i-1];
	}
	long long mi = LLONG_MAX;
	long long i = 1;
	for (;;i+=100000) {
		long long t = cu(i);
		if (mi > t) mi = t;
		else break;
	}
	i-=100000;
	for (;;i++) {
		long long t = cu(i);
		if (mi >= t) mi = t;
		else break;
	}
	cout << mi << endl;
	return 0;
}

Compiler output:
a.cc:1:1: error: 'lude' does not name a type
    1 | lude <bits/stdc++.h>
      | ^~~~
a.cc: In function 'long long int cu(long long int)':
a.cc:14:19: error: 'lower_bound' was not declared in this scope
   14 |         int pos = lower_bound(A, A + N, x) - A;
      |                   ^~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:24:9: error: 'cin' was not declared in this scope
   24 |         cin >> N;
      |         ^~~
a.cc:29:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   29 |         sort(A, A + N);
      |         ^~~~
      |         short
a.cc:33:24: error: 'LLONG_MAX' was not declared in this scope
   33 |         long long mi = LLONG_MAX;
      |                        ^~~~~~~~~
a.cc:1:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
  +++ |+#include <climits>
    1 | lude <bits/stdc++.h>
a.cc:46:9: error: 'cout' was not declared in this scope; did you mean 'cu'?
   46 |         cout << mi << endl;
      |         ^~~~
      |         cu
a.cc:46:23: error: 'endl' was not declared in this scope
   46 |         cout << mi << endl;
      |                       ^~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

ll calc(vector<ll>& a, ll b) {
    ll res = 0;
    for (ll x : a) {
        res += abs(x - b);
    }
    return res;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    vector<ll> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        a[i] -= i + 1;
    }
    //cout << sum << endl;

    ll L = *min_element(a.begin(), a.end()) - 1, R = *max_element(a.begin(), a.end()) + 1;
    while (R - L > 1) {
        ll mid = (R + L) / 2;
        if (calc(a, mid) - calc(a, mid - 1) > 0) {
            L = mid;
        } else {
            R = mid;
        }
    }
    cout << min(calc(L), calc(R)) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:22: error: invalid initialization of reference of type 'std::vector<long long int>&' from expression of type 'll' {aka 'long long int'}
   36 |     cout << min(calc(L), calc(R)) << endl;
      |                      ^
a.cc:7:21: note: in passing argument 1 of 'll calc(std::vector<long long int>&, ll)'
    7 | ll calc(vector<ll>& a, ll b) {
      |         ~~~~~~~~~~~~^
a.cc:36:31: error: invalid initialization of reference of type 'std::vector<long long int>&' from expression of type 'll' {aka 'long long int'}
   36 |     cout << min(calc(L), calc(R)) << endl;
      |                               ^
a.cc:7:21: note: in passing argument 1 of 'll calc(std::vector<long long int>&, ll)'
    7 | ll calc(vector<ll>& a, ll b) {
      |         ~~~~~~~~~~~~^
Language: C++

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

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

  if (n == 1) {
    cout << 0 << endl;
    return;
  }

  sort(begin(a), end(a));
  for (int i = n - 1; i >= 0; i--) {
    a[i] -= a[0];
  }
  for (int i = 0; i < n - 1; i++) {
    a[i + 1] += a[i];
  }
  /*
  for (auto e : a) {
    cerr << e << " ";
  }
  cerr << endl;
  */
  ll m = 1e15;
  for (int i = 0; i < n - 1; i++) {
    m = min(m, ((i + 1) * (a[i + 1] - a[i]) - a[i]) + (a[n - 1] - a[i] - (n - i - 1) * (a[i + 1] - a[i])));
  }
  cout << m << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   16 |     return;
      |     ^~~~~~
Language: C++


#include <cstdlib>
using namespace std;

int main()
{
    vector<int> a;
    int sum = 0;
    int mid, max, min, b;
    int tmp, ans;

    int N;
    cin >> N;

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

    a = A;
    sort(a.begin(), a.end());
    mid = a[N/2];

    // mid = sum / N;
    max = mid + 2;
    min = mid - 2;

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

        //cout << b << " : " << tmp << endl;
    }

    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'vector' was not declared in this scope
    7 |     vector<int> a;
      |     ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include <cstdlib>
  +++ |+#include <vector>
    3 | using namespace std;
a.cc:7:12: error: expected primary-expression before 'int'
    7 |     vector<int> a;
      |            ^~~
a.cc:13:5: error: 'cin' was not declared in this scope
   13 |     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:15:12: error: expected primary-expression before 'int'
   15 |     vector<int> A(N);
      |            ^~~
a.cc:17:16: error: 'A' was not declared in this scope
   17 |         cin >> A[i];
      |                ^
a.cc:22:5: error: 'a' was not declared in this scope
   22 |     a = A;
      |     ^
a.cc:22:9: error: 'A' was not declared in this scope
   22 |     a = A;
      |         ^
a.cc:23:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   23 |     sort(a.begin(), a.end());
      |     ^~~~
      |     short
a.cc:41:5: error: 'cout' was not declared in this scope
   41 |     cout << ans << endl;
      |     ^~~~
a.cc:41:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:41:20: error: 'endl' was not declared in this scope
   41 |     cout << ans << 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;

int main()
{
    vector<int> a;
    int sum = 0;
    int mid, max, min, b;
    int tmp, ans;

    int N;
    cin >> N;

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

    a = A;
    sort(a.begin(), a.end());
    mid = a[N/2];

    // mid = sum / N;
    max = mid + 2;
    min = mid - 2;

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

        //cout << b << " : " << tmp << endl;
    }

    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   24 |     sort(a.begin(), a.end());
      |     ^~~~
      |     short
Language: C++

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

int main(){
  long long int n;
  cin>>n;
  vector<long long int> a(n);
  long long int p=0;
  for(int i=0;i<n;i++){
    cin>>a[i];
    a[i]-=(i+1);
  }
  long long int ans=1e9;

  long long int l=-1e12;
  long long int r=1e12;
  while(abs(r-l)>2){
    long long int mid=(l*2+r)/3;
    long long int mid2=(l+r*2)/3;
    long long int tmp=0;
    for(int i=0;i<n;i++)tmp+=abs(a[i]+mid);
    long long int tmp2=0;
    for(int i=0;i<n;i++)tmp2+=abs(a[i]+mid2);
    //cout<<l<<" "<<r<<endl;
    if(tmp<tmp2){
      r=mid2;
    }else{
      l=mid;
    }
    ans=min(ans,min(tmp,tmp2));
  }

  for(int i=l;i<r+1;i++){
    tmp=0;
    for(int j=0;j<n;j++)tmp+=abs(a[i]+i);
    ans=min(ans,tmp);
  }

  cout<<ans<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:5: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   34 |     tmp=0;
      |     ^~~
      |     tm
Language: C++

 <bits/stdc++.h>

using namespace std;

#define rep(i, n) for (int i = 0; i < n; i++)
#define reps(i, n, m) for (int i = n; i < m; i++)

int N;
long long A[200000];
long long sum;

inline long long cu(long long x)
{
	long long res = 0;
	rep(i, N) {
		res += abs(A[i] - x);
	}
	return res;
}



int main()
{
	cin >> N;
	rep (i, N) {
		cin >> A[i];
		A[i] -= i;
		sum += A[i];
	}
	long long mi = LLONG_MAX;
	long long i = 1;
	for (;;i+=100000) {
		long long t = cu(i);
		if (mi > t) mi = t;
		else break;
	}
	i-=100000;
	for (;;i++) {
		long long t = cu(i);
		if (mi > t) mi = t;
		else break;
	}
	cout << mi << endl;
	return 0;
}

Compiler output:
a.cc:1:2: error: expected unqualified-id before '<' token
    1 |  <bits/stdc++.h>
      |  ^
a.cc: In function 'long long int cu(long long int)':
a.cc:16:24: error: 'abs' was not declared in this scope
   16 |                 res += abs(A[i] - x);
      |                        ^~~
a.cc: In function 'int main()':
a.cc:25:9: error: 'cin' was not declared in this scope
   25 |         cin >> N;
      |         ^~~
a.cc:31:24: error: 'LLONG_MAX' was not declared in this scope
   31 |         long long mi = LLONG_MAX;
      |                        ^~~~~~~~~
a.cc:1:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
  +++ |+#include <climits>
    1 |  <bits/stdc++.h>
a.cc:44:9: error: 'cout' was not declared in this scope; did you mean 'cu'?
   44 |         cout << mi << endl;
      |         ^~~~
      |         cu
a.cc:44:23: error: 'endl' was not declared in this scope
   44 |         cout << mi << endl;
      |                       ^~~~
Language: C++

#include <iostream>
#include <cmath>
#include <vector>
#include <numeric>
#define r(i, n) for (int i = 0; i < n; i++)
using namespace std;
int main()
{
    int n, b, s, ans = 1e9;
    cin >> n;
    vector<int> a(n);
    r(i, n)
    {
        std::cin >> a[i];
        a[i] -= (i + 1);
    }
    sort(a.begin(), a.edn());
    s = a[n / 2];
    for (int i = s - 1e5; i <= s + 1e5; i++)
    {
        int c = 0;
        r(j, n) c += abs(a[j] - i);
        ans = (ans > c) ? c : ans;
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:23: error: 'class std::vector<int>' has no member named 'edn'; did you mean 'end'?
   17 |     sort(a.begin(), a.edn());
      |                       ^~~
      |                       end
a.cc:17:5: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   17 |     sort(a.begin(), a.edn());
      |     ^~~~
      |     sqrt
Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
using namespace std;
typedef long long ll;
const int maxn=(1<<19)+10;
ll a[maxn];
ll ans[maxn];
int main()
{
    int n;
    while (scanf("%d",&n)!=EOF) {
        for(int i=0;i<(1<<n);i++)
            scanf("%lld",a+i);
        memset(ans, 0, sizeof(ans));
        for(int i=0;i<(1<<n)-1;i++)
            for(int j=0;j<(1<<n)-1;j++)
                if(i!=j)
                    ans[(i|j)]=max(ans[i|j],a[i]+a[j]);
        for(int i=2;i<(1<<n);i++)
            ans[i]=max(ans[i],ans[i-1]);
            for(int i=1;i<(1<<n);i++)printf("%lld\n",ans[i]);
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'memset' was not declared in this scope
   16 |         memset(ans, 0, sizeof(ans));
      |         ^~~~~~
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 <iomanip>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <cstdlib>
#include <algorithm>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <functional>
#include <utility>
#include <tuple>
#include <cctype>
#include <bitset>
#include <complex>
#include <cmath>
#include <array>
using namespace std;
int main()
{

Compiler output:
a.cc: In function 'int main()':
a.cc:24:2: error: expected '}' at end of input
   24 | {
      | ~^
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long a[200001],n;
void qsort(int l,int r)
{
	int i=l,j=r,mid=(l+r)/2,step=0;
	while(i<j)
	{
		while(a[i]<a[mid])++i;
		while(a[j]>a[mid])--j;
		if(i<j)
		{step=a[i];a[i]=a[j];a[j]=step;}
	}
	if(i<r)qsort(i,r);
	if(j>l)qsort(l,j);
}
int main()
{
	double z,total=0;
	cin>>n;
	for(int i=1;i<=n;++i)
	{
		cin>>a[i];
		a[i]-=i;
	}
	qsort(1,n);
	if(n%2==0)
	{
		z=(a[n/2]+a[n/2+1])/2
		for(int i=1;i<=n;++i)
		total+=a[i]-z;
	}
	else
	{
		z=a[(n+1)/2];
		for(int i=1;i<=n;++i)
		total+=a[i]-z;
	}
	cout<<total<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:38: error: expected ';' before 'for'
   29 |                 z=(a[n/2]+a[n/2+1])/2
      |                                      ^
      |                                      ;
   30 |                 for(int i=1;i<=n;++i)
      |                 ~~~                   
a.cc:30:29: error: 'i' was not declared in this scope
   30 |                 for(int i=1;i<=n;++i)
      |                             ^
Language: C++

#include"bits/stdc++.h"
using namespace std;
using ll = int64_t;

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

    auto f = [&](ll b) {
        ll result = 0;
        for (ll i = 0; i < N; i++) {
            result += abs(A[i] - (b + i + 1));
        }
        return result;
    };

    ll ok = LONG_MIND, ng = LONG_MAX;
    while (ok + 2 < ng) {
        ll left = (2 * ok + ng) / 3;
        ll right = (ok + 2 * ng) / 3;
        assert(left <= right);

        ll left_value = f(left);
        ll right_value = f(right);

        if (left_value < right_value) {
            ng = right;
        } else {
            ok = left;
        }
    }

    ll ans = INT_MAX;
    for (ll j = ok - 1e2; j <= ng + 1e2; j++) {
        ans = min(ans, f(j));
    }

    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:13: error: 'LONG_MIND' was not declared in this scope; did you mean 'LONG_MIN'?
   21 |     ll ok = LONG_MIND, ng = LONG_MAX;
      |             ^~~~~~~~~
      |             LONG_MIN
a.cc:22:21: error: 'ng' was not declared in this scope
   22 |     while (ok + 2 < ng) {
      |                     ^~
a.cc:38:32: error: 'ng' was not declared in this scope
   38 |     for (ll j = ok - 1e2; j <= ng + 1e2; j++) {
      |                                ^~
Language: Java

public class Main
{

  public static void main(String[] args) throws IOException
  {
    BufferedReader r = new BufferedReader(new InputStreamReader(System.in), 1);
    String s = r.readLine();
    int n = Integer.parseInt(s);
    s = r.readLine();
    long a[] = new long[200001];
    String[] sl = s.split("[\\s]+");
    for(int i = 0; i < n; i++)
    {
      a[i] = Long.parseLong(sl[i]);
    }

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

    //System.out.println(Arrays.toString(a));

    long m = 0;
    for(int i = 0; i < n; i++)
    {
      m += a[i];
    }
    m /= n;

    long min = Long.MAX_VALUE;

    for(int j = -7; j <= 7; j++)
    {
      long t = 0;
      for(int i = 0; i < n; i++)
      {
        t += Math.abs(a[i] - m + j);
      }
      min = Math.min(min, t);
    }

    System.out.println(min);
  }

}

Compiler output:
Main.java:4: error: cannot find symbol
  public static void main(String[] args) throws IOException
                                                ^
  symbol:   class IOException
  location: class Main
Main.java:6: error: cannot find symbol
    BufferedReader r = new BufferedReader(new InputStreamReader(System.in), 1);
    ^
  symbol:   class BufferedReader
  location: class Main
Main.java:6: error: cannot find symbol
    BufferedReader r = new BufferedReader(new InputStreamReader(System.in), 1);
                           ^
  symbol:   class BufferedReader
  location: class Main
Main.java:6: error: cannot find symbol
    BufferedReader r = new BufferedReader(new InputStreamReader(System.in), 1);
                                              ^
  symbol:   class InputStreamReader
  location: class Main
4 errors
Language: C++

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


int main(){
    ll n;
    cin >> n;
    vector<ll> a(n);
    for(int i = 0; i < n; i++){
        cin >> a[i];
    }
    ll ans = 1000000000000000;
    ll left = -1000000000;
    ll right = 1000000000;
    while(abs(right - left)>1){
        ll mid = (left+right)/2;
        //cout <<"l r mid "<<left <<" "<<right<<" "<<mid<<endl;
        ll tmpsuml = 0;
        ll tmpsumr = 0;
        for(int i = 0; i < n; i++){
            tmpsuml += abs(a[i]-(mid+i+1));
            tmpsumr += abs(a[i]-(mid+i+2));
        }
        //cout << "suml sumr "<<tmpsuml<<" "<<tmpsumr<<endl;
        if(tmpsuml<tmpsumr){
            right = mid;
            ans = min(tmpsuml, ans);
        }else if(tmpsuml>tmpsumr){
            left = mid;
            ans = min(tmpsumr, ans);
        }else{
            ans = min(tmpsumr, ans);
            break;
        }
    }

    ll tmpsum = 0;
    for(int i = 0; i < 10; i++){
        tmpsum += abs(a[i]-(mid+i-4));
    }
    ans = min(tmpsum, ans);

    cout << ans << endl;
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:29: error: 'mid' was not declared in this scope
   42 |         tmpsum += abs(a[i]-(mid+i-4));
      |                             ^~~
Language: C++

#define _USE_MATH_DEFINES
#include<cstdio>
#include<iostream>
#include<sstream>
#include<fstream>
#include<iomanip>
#include<algorithm>
#include<cmath>
#include<complex>
#include<string>
#include<vector>
#include<list>
#include<queue>
#include<stack>
#include<set>
#include<map>
#include<bitset>
#include<numeric>
#include<limits>
#include<climits>
#include<cfloat>
#include<functional>
#include<iterator>
using namespace std;
bool(abs)
{
int i;
	if(i<0)		
		i=0-i;
	else
		i=i;	
} 
int main()
{
int n;
int cnt=0;
int a[n];
cin>>n>>a[n];
sort(a,a+n);
for(int b=1;b<=n;b++)
{
	for(int c=1;c<=n;c++)
	{
		cnt=cnt+abs(a[c]-b);
	}
}
cout<<cnt;
return 0;
}

Compiler output:
a.cc:25:9: error: 'bool abs' redeclared as different kind of entity
   25 | bool(abs)
      |         ^
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/c++/14/ext/string_conversions.h:43,
                 from /usr/include/c++/14/bits/basic_string.h:4154,
                 from /usr/include/c++/14/string:54,
                 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:3:
/usr/include/stdlib.h:980:12: note: previous declaration 'int abs(int)'
  980 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
a.cc:27:1: error: expected primary-expression before 'int'
   27 | int i;
      | ^~~
a.cc:27:1: error: expected '}' before 'int'
a.cc:26:1: note: to match this '{'
   26 | {
      | ^
a.cc:28:9: error: expected unqualified-id before 'if'
   28 |         if(i<0)
      |         ^~
a.cc:30:9: error: expected unqualified-id before 'else'
   30 |         else
      |         ^~~~
a.cc:32:1: error: expected declaration before '}' token
   32 | }
      | ^
Language: C++

#include <iostream>
#include <cmath>
#include <vector>
#define r(i, n) for (int i = 0; i < n; i++)
using namespace std;
int main()
{
    int n, b, ans = 1e9;
    cin >> n;
    vector<int> a(n);
    r(i, n)
    {
        std::cin >> a[i];
        a[i] -= (i + 1);
    }
    for (int i = *min_element(a.begin(), a.end()); i <= *max_element(a.begin(), a.end()); i++)
    {
        int c = 0;
        r(j, n) c += abs(a[j] - i);
        ans = (ans > c) ? c : ans;
    }
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:19: error: 'min_element' was not declared in this scope
   16 |     for (int i = *min_element(a.begin(), a.end()); i <= *max_element(a.begin(), a.end()); i++)
      |                   ^~~~~~~~~~~
a.cc:16:58: error: 'max_element' was not declared in this scope
   16 |     for (int i = *min_element(a.begin(), a.end()); i <= *max_element(a.begin(), a.end()); i++)
      |                                                          ^~~~~~~~~~~
Language: C++

#include <iostream>
#include <cstring>
#include <cstdio>
#include <cmath>
using namespace std;
typedef long long ll;
const int N = 2e5+5;

int A[N];
int main() {
	int n;
	while(~scanf("%d", &n)) {
		for(int i = 0; i < n; ++i) {
			scanf("%d", &A[i]);
			A[i] -= i;
		}
		sort(A, A+n);
		int mid = (A[n/2] + A[(n-1)/2]) / 2;
		ll ans = 0;
		for(int i = 0; i < n; ++i) {
			ans += abs(A[i] - mid);
		} 
		printf("%lld\n", ans);
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   17 |                 sort(A, A+n);
      |                 ^~~~
      |                 sqrt
Language: C++

#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <string>
#include <cmath>
#include <utility>
#include <queue>

#define ll long long int
#define INF 1e9

using namespace std;
typedef pair<int, int> P;

int *a;
int n;

int main(int argc, char const* argv[])
{
	cin >> n;
	a = new int[n];
	ll *sum = new ll[n];
	for(int i = 0; i < n; i++){
			cin >> a[i];
			a[i] = a[i] - i - 1;
	}
	sort(a, a + n);
	for(int i = 0; i < n; i++){
			if(i == 0)sum[i] = a[i];
			else sum[i] = sum[i - 1] + a[i];
	}
	ll min = INF;
	for(int i = 0; i < n - 1; i++){
			ll res = 0;
			res = sum[n - 1] - sum[i] * 2;
			int x;
			if(n - 2 * i - 2 > 0){
					x = a[i + 1];
			}else{
					x = a[i];
			}
			res += - x * (n - 2 * i - 2);
			if(res < min)min = res;
	}
	cout << min << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:28:9: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   28 |         sort(a, a + n);
      |         ^~~~
      |         sqrt
Language: C++

/**********************************************************************/
/********                                                      ********/
/********                     Writer:孙~~                      ********/
/********                       Lang:C++                       ********/
/********                     Status:Unknow                    ********/
/********                                                      ********/
/**********************************************************************/
#include <iostream>
#include <string>
#include <cstdio>
#include <vector>
#include <queue>
#include <list>
#include <cstdlib>
//#include <algorithm>
#include <set>
#include <map>
#include <deque>
#include <cstring>
#include <cmath>
//#include<bits/stdc++.h>
using namespace std;

const int INF=0x3f3f3f3f;
const int SIZE=100005;

long long a[SIZE];

int main(){
	int n;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		scanf("%d",a+i);
		a[i]-=i+1;
	}
	sort(a,a+n);
	if(n==1){
		puts("0");
	}
	else if(n%2==0){
		long long tmp=0;
		for(int i=0;i<n;i++){
			tmp+=abs(a[i]-a[n/2]);
		}
		long long tmp2=0;
		for(int i=0;i<n;i++){
			tmp2+=abs(a[i]-a[n/2-1]);
		}
		printf("%lld\n",min(tmp,tmp2));
	}
	else{
		long long tmp=0;
		for(int i=0;i<n;i++){
			tmp+=abs(a[i]-a[n/2]);
		}
		printf("%lld\n",tmp);
	}
	return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:36:9: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   36 |         sort(a,a+n);
      |         ^~~~
      |         sqrt
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define lo long
const int lmax=1999999999;
const long long lmx=1999999999999999999;
long long k,n,a[200003],sum[200004],ans,k1,k2,ans1,ans2;
int main(){std::ios::sync_with_stdio(false);
cin>>n;
for(int i=1;i<=n;i++)
{
	cin>>a[i];
	a[i]-=i;
	sum[i]+=abs(abs(a[i])+sum[i-1]);
}
ans=lmx;
for(int i=1;i<=n;i++)
{
	k=abs(sum[n]-2LL*sum[i]);
	if(i+1<=n)k=abs(sum[n]-2LL*sum[i])+abs(a[i+1]-a[i])
	k1=abs(a[i]);
	k2=k1*n;
	ans=min(ans,abs(k-k2));
}
cout<<ans<<endl;
}
/*

                   *         *
                  * *       * *
                 *   *     *   *
                *     *   *     *
               *       * *       *
               *        *        *
                *               *
                 *             *
                  *           *
                   *         *
                    *       *
                     *     *
                      *   *
                       * *
                        *



*/





Compiler output:
a.cc: In function 'int main()':
a.cc:19:60: error: expected ';' before 'k1'
   19 |         if(i+1<=n)k=abs(sum[n]-2LL*sum[i])+abs(a[i+1]-a[i])
      |                                                            ^
      |                                                            ;
   20 |         k1=abs(a[i]);
      |         ~~