Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
typedef std::pair<unsigned int ,unsigned int > P;

int main(){
    long n, h;
    std::cin >> n >> h;
    int a[100010], b[100010];
    std::vector<P> vec;
    P max = std::make_pair(-1, -1);
    for(int i = 0; i < n; i++){
        int t1, t2;
        std::cin >> t1 >> t2;
        if(max.first < t1){
            max = std::make_pair(t1, t2);
        }else if (max.first == t1) {
            max.second = std::max(max.second, t2);
        }
        vec.push_back(std::make_pair(t1, t2));
    }
    std::sort(vec.begin(), vec.end(), [](P a, P b){
        return a.second < b.second;
    });
    int i = 0;
    do{
        P back = vec.back();
        if(back.first == max.first && back.second == max.second){
            vec.pop_back();
            continue;
        }
        if(back.second <= max.first){
            if(h <= max.second){
                h -= max.second;
                vec.pop_back();
                i++;
                break;
            }
            else{
                h -= max.first;
                i++;
                continue;
            }
        }else{
            h -= back.second;
            vec.pop_back();
            i++;
        }

    }while(h > 0);
    std::cout << i << std::endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:34: error: no matching function for call to 'max(unsigned int&, int&)'
   18 |             max.second = std::max(max.second, t2);
      |                          ~~~~~~~~^~~~~~~~~~~~~~~~
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:18:34: note:   deduced conflicting types for parameter 'const _Tp' ('unsigned int' and 'int')
   18 |             max.second = std::max(max.second, t2);
      |                          ~~~~~~~~^~~~~~~~~~~~~~~~
/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:3:
/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:18:34: note:   mismatched types 'std::initializer_list<_Tp>' and 'unsigned int'
   18 |             max.second = std::max(max.second, t2);
      |                          ~~~~~~~~^~~~~~~~~~~~~~~~