Language: C++

#include <bits/stdc++.h>
#include <iostream>
#include <string>
#include <vector>
#define REP(i, n) for (int i = 0; (i) < (int)(n); ++ (i))
#define REP3(i, m, n) for (int i = (m); (i) < (int)(n); ++ (i))
#define REP_R(i, n) for (int i = (int)(n) - 1; (i) >= 0; -- (i))
#define REP3R(i, m, n) for (int i = (int)(n) - 1; (i) >= (int)(m); -- (i))
#define ALL(x) ::std::begin(x), ::std::end(x)
using namespace std;
const long long INF = numeric_limits<long long>::max();
typedef long long ll;

constexpr int64_t MOD = 1000000007;

int64_t solve(int64_t S) {
    vector<ll> a(max((ll)6, S + 1));
    a[3] = 1;
    a[4] = 1;
    a[5] = 1;
    if (S <= 5) return a[S];
    REP3(i, 6, S + 1) {
        a[i] = 1;
        REP3(j, 3, i - 3 + 1) {
            a[i] = (a[i] + a[i - j]) % MOD;
        }
    }
    return a[S];
}

// generated by online-judge-template-generator v4.6.0 (https://github.com/kmyk/online-judge-template-generator)
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    constexpr char endl = '\n';
    int64_t S;
    cin >> S;
    auto ans = solve(S);
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int64_t solve(int64_t)':
a.cc:17:21: error: no matching function for call to 'max(ll, int64_t)'
   17 |     vector<ll> a(max((ll)6, S + 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: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:17:21: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int64_t' {aka 'long int'})
   17 |     vector<ll> a(max((ll)6, S + 1));
      |                  ~~~^~~~~~~~~~~~~~
/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:
/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:17:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   17 |     vector<ll> a(max((ll)6, S + 1));
      |                  ~~~^~~~~~~~~~~~~~