Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
short int a[1000 + 100][2], b[10 + 100][1000000000+100] = { 0 };
long long sol(int n, int i, int j)
{
	if (i == n - 1)
	{
		long long m = -8;
		for(int t = 0; t < 3; t++)
		{
			if (t != j)
				m = max(m, a[i][t]);
			
		}
		return m;
	}
	long long m = -8,s=0;
	for (int t = 0; t < 3; t++)
	{
		if (t != j)
		{
			if (m < a[i][t])
				s = t;
			m = max(m, a[i][t]);

		}

	}
	if(b[i][s]==-1)
	b[i][s]= m + sol(n, i + 1, s);
	return b[i][s];
}
int main()
{
	
	int n,w;
	cin >> n>>w;
	for (int i = 1; i <= n; i++)
		for (int j = 0; j < 2; j++)
		{
			cin >> a[i][j];
			
		}
	
	for (int i = 1; i <= n; i++)
	{
		for (int j = 1; j <= w; j++)
		{
			if (j - a[i][0] > -1)
			{
				b[i][j] = max(a[i][1] + b[i-1][j - a[i][0]],b[i-1][j]);
			}
			else b[i][j] = b[i - 1][j];
			
		}
		
	}
	cout << b[n][w]<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'long long int sol(int, int, int)':
a.cc:14:40: error: no matching function for call to 'max(long long int&, short int&)'
   14 |                                 m = max(m, a[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: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:14:40: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'short int')
   14 |                                 m = max(m, a[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:2:
/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:14:40: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   14 |                                 m = max(m, a[i][t]);
      |                                     ~~~^~~~~~~~~~~~
a.cc:26:32: error: no matching function for call to 'max(long long int&, short int&)'
   26 |                         m = max(m, a[i][t]);
      |                             ~~~^~~~~~~~~~~~
/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:26:32: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'short int')
   26 |                         m = max(m, a[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
/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:26:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   26 |                         m = max(m, a[i][t]);
      |                             ~~~^~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:53:46: error: no matching function for call to 'max(int, short int&)'
   53 |                                 b[i][j] = max(a[i][1] + b[i-1][j - a[i][0]],b[i-1][j]);
      |                                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:53:46: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'short int')
   53 |                                 b[i][j] = max(a[i][1] + b[i-1][j - a[i][0]],b[i-1][j]);
      |                                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:53:46: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   53 |                                 b[i][j] = max(a[i][1] + b[i-1][j - a[i][0]],b[i-1][j]);
      |                                           ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~