Language: C++

#include <iostream>
#include <algorithm>
#include <cstring>
#include <vector>
#include <cstring>
#include <set>
#include <map>
using namespace std;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define sz(x) (int)x.size()
#define rep(i, a, b) for (int i=(a);i<=(b);i++)
#define dd(x) cout << #x << " = " << x << endl;
typedef pair<int, int> pii;
typedef long long LL;

const LL MOD = 1000000007;
const int N = 500000+10;

LL n, h;
LL a[N], b[N];
set<LL> st_b, st_a;
bool cmp(LL x, LL y) {
    return x > y;
}
int main() {
    scanf("%lld %lld", &n, &h);

    rep(i, 1, n) {
        scanf("%lld %lld", &a[i], &b[i]);
        st_a.insert(a[i]); st_b.insert(b[i]);
    }
    
    LL mx_a = *st_a.rbegin();
    LL ans = 1e9+7;
    
    sort(b+1, b+1+n, cmp);
    
    LL sum = 0;
    rep(i, 0, n) {
        sum += b[i];
        if (sum > h) {
            ans = min(ans, i);
            break;
        }
        LL tmp = ( (h - sum) + mx_a - 1) / mx_a + i;
        ans = min(ans, tmp);
    }
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:46:22: error: no matching function for call to 'min(LL&, int&)'
   46 |             ans = min(ans, i);
      |                   ~~~^~~~~~~~
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:46:22: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   46 |             ans = min(ans, i);
      |                   ~~~^~~~~~~~
/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:46:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   46 |             ans = min(ans, i);
      |                   ~~~^~~~~~~~