Language: C++

#include<bits/stdc++.h>
using namespace std;
#define N 5005

int n,ans;
int a[3],b[3];
int dp[N*N*2];

int main()
{
	
	cin>>n;
	cin>>a[0]>>a[1]>>a[2];
	cin>>b[0]>>b[1]>>b[2];
	for(int i=0;i<=n;i++)
		dp[i]=i;
	for(int i=0;i<=n;i++)
	for(int j=0;j<3;j++)
		if(i+a[j]<=n) dp[i+a[j]]=max(dp[i+a[j]],dp[i]+b[j]);
	long long mx=0;
	for(int i=0;i<=n;i++)
		mx=max(mx,dp[i]+n-i);
	
	n=mx;
	for(int i=0;i<=n;i++)
		dp[i]=i;
	for(int i=0;i<=n;i++)
	for(int j=0;j<3;j++)
		if(i+b[j]<=n) dp[i+b[j]]=max(dp[i+b[j]],dp[i]+a[j]);
	long long mx2=0;
	for(int i=0;i<=n;i++)
		mx2=max(mx2,dp[i]+n-i);
	cout<<mx2<<'\n';
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:23: error: no matching function for call to 'max(long long int&, int)'
   22 |                 mx=max(mx,dp[i]+n-i);
      |                    ~~~^~~~~~~~~~~~~~
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:22:23: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   22 |                 mx=max(mx,dp[i]+n-i);
      |                    ~~~^~~~~~~~~~~~~~
/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:22:23: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   22 |                 mx=max(mx,dp[i]+n-i);
      |                    ~~~^~~~~~~~~~~~~~
a.cc:32:24: error: no matching function for call to 'max(long long int&, int)'
   32 |                 mx2=max(mx2,dp[i]+n-i);
      |                     ~~~^~~~~~~~~~~~~~~
/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:32:24: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   32 |                 mx2=max(mx2,dp[i]+n-i);
      |                     ~~~^~~~~~~~~~~~~~~
/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
/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:32:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   32 |                 mx2=max(mx2,dp[i]+n-i);
      |                     ~~~^~~~~~~~~~~~~~~