Language: C++

#pragma once
#include <sstream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <utility>
#include <set>
#include <cctype>
#include <queue>
#include <stack>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <deque>
#include <numeric>
#include <iomanip>
#define M_PI acos(-1)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 1000000007;
const int MAX_V = 201;
int now = 0;

const int MAX = 200000;
const int MOD = 1000000007;

long long fac[MAX], finv[MAX], inv[MAX];

// テーブルを作る前処理
void COMinit() {
	fac[0] = fac[1] = 1;
	finv[0] = finv[1] = 1;
	inv[1] = 1;
	for (int i = 2; i < MAX; i++) {
		fac[i] = fac[i - 1] * i % MOD;
		inv[i] = MOD - inv[MOD%i] * (MOD / i) % MOD;
		finv[i] = finv[i - 1] * inv[i] % MOD;
	}
}

// 二項係数計算
long long COM(int n, int k) {
	if (n < k) return 0;
	if (n < 0 || k < 0) return 0;
	return fac[n] * (finv[k] * finv[n - k] % MOD) % MOD;
}
struct edge {
	int t;
	ll cost;
	edge(int _t, ll _cost) : t(_t)
		, cost(_cost) {
	}
};
bool isPrime(int n) {

	if (n == 1) return false;
	for (ll i = 2; i * i <= n; i++)
	{
		if (n % i == 0) return false;
	}
	return true;
}
void Solve() {
	
	int n;
	ll x;
	cin >> n >> x;
	ll a[2010];
	for (size_t i = 0; i < n; i++)
	{
		cin >> a[i];
	}
	ll res = 0;
	ll aval = 0;
	for (size_t i = 0; i < n; i++)
	{
		ll val = a[i];
		int iv = i + n;
		int in = i;
		for (size_t j = 0; j < n; j++)
		{
			if (i == j) continue;
			ll tv;
			if (j < i) {
				tv = min((i - j) * x + a[j], val);
			}
			else {
				tv = min((iv - j) * x + a[j], val);
			}
			if (tv < val) {
				in = j;
				val = tv;
			}
		}
		aval += a[in];
		res = max(val - a[in],res);
	}
		

	cout << (res + aval) << endl;
}
int main() {
	Solve();
	return 0;
}



Compiler output:
a.cc:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
a.cc:19:9: warning: "M_PI" redefined
   19 | #define M_PI acos(-1)
      |         ^~~~
In file included from /usr/include/c++/14/cmath:47,
                 from a.cc:15:
/usr/include/math.h:1121:10: note: this is the location of the previous definition
 1121 | # define M_PI           3.14159265358979323846  /* pi */
      |          ^~~~
a.cc: In function 'void Solve()':
a.cc:88:41: error: no matching function for call to 'min(long long unsigned int, ll&)'
   88 |                                 tv = min((i - j) * x + a[j], val);
      |                                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/istream:40,
                 from /usr/include/c++/14/sstream:40,
                 from a.cc:2:
/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:88:41: note:   deduced conflicting types for parameter 'const _Tp' ('long long unsigned int' and 'll' {aka 'long long int'})
   88 |                                 tv = min((i - j) * x + a[j], val);
      |                                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/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,
                 from a.cc:6:
/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:88:41: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long unsigned int'
   88 |                                 tv = min((i - j) * x + a[j], val);
      |                                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:91:41: error: no matching function for call to 'min(long long unsigned int, ll&)'
   91 |                                 tv = min((iv - j) * x + a[j], val);
      |                                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/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:91:41: note:   deduced conflicting types for parameter 'const _Tp' ('long long unsigned int' and 'll' {aka 'long long int'})
   91 |                                 tv = min((iv - j) * x + a[j], val);
      |                                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
/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
/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:91:41: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long unsigned int'
   91 |                                 tv = min((iv - j) * x + a[j], val);
      |                                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~