Language: C++

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 5010;

ll dp[N][N];

int main() {
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    vector<pair<int, int>> a(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i].first >> a[i].second;
    }
    ll inf = 1e9;
    inf *= inf;
    for (int i = 0; i < N; ++i) {
        for (int j = 0; j < N; ++j) {
            dp[i][j] = inf;
        }
    }
    sort(a.begin(), a.end(), [](pair<int, int> &p1, pair<int, int> &p2) { return p1.first + p1.second < p2.first + p2.second; });
    int ans = 0;
    for (int i = 1; i <= n; ++i) {
        dp[i][1] = min(a[i - 1].second, dp[i - 1][1]);
        for (int j = 2; j <= i; ++j) {
            if (dp[i - 1][j - 1] > a[i - 1].first) {
                dp[i][j] = dp[i - 1][j];
            } else {
                dp[i][j] = min(dp[i - 1][j], dp[i - 1][j - 1] + a[i - 1].second);
            }
        }
    }
    for (int i = 1; i <= n; ++i) {
        if (dp[n][i] < inf) {
            ans = i;
        }
    }
    cout << ans;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:23: error: no matching function for call to 'min(int&, ll&)'
   33 |         dp[i][1] = min(a[i - 1].second, dp[i - 1][1]);
      |                    ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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: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:33:23: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   33 |         dp[i][1] = min(a[i - 1].second, dp[i - 1][1]);
      |                    ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/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:
/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:33:23: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   33 |         dp[i][1] = min(a[i - 1].second, dp[i - 1][1]);
      |                    ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~