Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
using namespace std;
#define int long long
int DP[101][101][1000];

signed main() {
	int N, W; cin >> N >> W;
	vector<int>w(N), v(N);
	for (int i = 0; i < N; i++) {
		cin >> w[i] >> v[i];
	}
	int w0 = w[0];
	for (int i = 0; i < N; i++) w[i] -= w0;

	for (int i = 0; i <= N; i++)for (int j = 0; j <= N; j++)for (int k = 0; k < 1000; k++)DP[i][j][k] = -1;

	DP[0][0][0] = 0;

	for (int i = 0; i < N; i++) {
		for (int j = 0; j <= i; j++) {
			for (int k = 0; k < 500; k++) {
				if (DP[i][j][k] == -1)continue;

				DP[i + 1][j + 1][k + w[i]] = max(DP[i + 1][j + 1][k + w[i]], DP[i][j][k] + v[i]);
				DP[i + 1][j][k] = max(DP[i + 1][j][k], DP[i][j][k]);
			}
		}
	}

	int ans = 0;
	for (int i = 0; i <= N; i++) {
		for (int j = 0; j <= min(500,W - w0*i); j++) {
			ans = max(ans, DP[N][i][j]);
		}
	}

	cout << ans << endl;


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:41: error: no matching function for call to 'min(int, long long int)'
   35 |                 for (int j = 0; j <= min(500,W - w0*i); j++) {
      |                                      ~~~^~~~~~~~~~~~~~
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: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:35:41: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   35 |                 for (int j = 0; j <= min(500,W - w0*i); j++) {
      |                                      ~~~^~~~~~~~~~~~~~
/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:2:
/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:35:41: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   35 |                 for (int j = 0; j <= min(500,W - w0*i); j++) {
      |                                      ~~~^~~~~~~~~~~~~~