Language: C++


#include<iostream>
#include<vector>
#include<cinttypes>
#include<limits>
#include<algorithm>
#include<numeric>

//2≤ N ≤10^5
//0≤ a[i] ≤10^9
//0≤ x ≤10^9


using n_type = std::uint32_t;
using a_type = std::int64_t;
using x_type = std::uint32_t;
using veca = std::vector<a_type>;

template<class T>
void print(std::vector<T>& vec) {
	for (const auto&v : vec) {
		std::cout << v << ", ";
	}std::cout << "\n";
}

int main() {
	//std::cout << std::numeric_limits<std::uint32_t>::max() << "\n";
	n_type N{};
	x_type x{};
	std::cin >> N >> x;

	veca v;
	v.reserve(N);
	a_type t1{ 0 };
	for (size_t i{ 0 }; i < N ; i++) {
		std::cin >> t1;
		v.push_back(t1);
	}
	//	print(v);
	std::uintmax_t count_{};
	for (size_t i{ 1 }; i < v.size() ; i++) {
		std::int64_t t = v[i-1] + v[i ] - x;
		if (t > 0) {
			v[i] = std::max( 0LL,v[i]- t);//
			count_ += t;
		}

		//std::cout << t << ", ";
	}
	//std::cout << "\n";
	std::cout << count_ << "\n";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:40: error: no matching function for call to 'max(long long int, __gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type)'
   44 |                         v[i] = std::max( 0LL,v[i]- t);//
      |                                ~~~~~~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:2:
/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:44:40: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and '__gnu_cxx::__alloc_traits<std::allocator<long int>, long int>::value_type' {aka 'long int'})
   44 |                         v[i] = std::max( 0LL,v[i]- t);//
      |                                ~~~~~~~~^~~~~~~~~~~~~~
/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,
                 from a.cc:6:
/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:44:40: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   44 |                         v[i] = std::max( 0LL,v[i]- t);//
      |                                ~~~~~~~~^~~~~~~~~~~~~~