Submission #1265984

#	Time	Username	Problem	Language	Result	Execution time	Memory
1265984		shiori_chan	Vudu (COCI15_vudu)	C++17	Compilation error	0 ms	0 KiB

vudu

#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define pb push_back
#define fi first
#define se second
#define compact(v) v.erase(unique(all(v)) , v.end())
#define pi pair<int , int>
#define vi vector<int>
#define eb emplace_back
#define FOR(i , l , r) for(int i = l; i <= r; ++ i)
#define FORD(i , l , r) for(int i = l; i >= r; -- i)

using namespace std;
#define int long long
typedef long long ll;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

#define ordered_set tree<pi, null_type,less<pi>, rb_tree_tag,tree_order_statistics_node_update>

const int nd = 1e5 + 1 , mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
uniform_int_distribution<int> dist(1 , (int)2e9);

template <class T> bool maximize(T &a , T b){return (a < b ? a = b , true : false);}
template <class T> bool minimize(T &a , T b){return (a > b ? a = b , true : false);}


int add(int a , int b) {return (a + b) % mod;}
int mul(int a , int b) {return (a * b) % mod;}
int sub(int a , int b) {return (a - b + mod) % mod;}
int xpow(int a , int b){
    int res = 1;
    for(int i = 0; (1 << i) <= b; ++ i){
        if(b & (1 << i)) res = mul(res , a);
        a = mul(a , a);
    }
    return res;
}

int pref[nd];

ordered_set s;

void solve(){
    int n;
    cin >> n;

    FOR(i , 1 , n){
        cin >> pref[i];
        pref[i] += pref[i - 1];
    }
    int p;
    cin >> p;

    int res = 0;
    s.insert({0 , 0});
    FOR(i , 1 , n){
        int v = pref[i] - p * i;
        res += s.order_of_key({v , 1e9});

        s.insert({v , i});
    }
    cout << res;
}

signed main() {
   ios_base::sync_with_stdio(false);
   cin.tie(0);

    #define task "task"
    if(fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }

    int test_case = 1;
    while(test_case --) solve();

    return 0;
}
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Compilation message (stderr)

In file included from /usr/include/c++/11/ext/pb_ds/detail/type_utils.hpp:47,
                 from /usr/include/c++/11/ext/pb_ds/tag_and_trait.hpp:46,
                 from /usr/include/c++/11/ext/pb_ds/assoc_container.hpp:46,
                 from vudu.cpp:16:
/usr/include/c++/11/tr1/type_traits:121:3: error: redefinition of 'struct std::tr1::__is_integral_helper<long long int>'
  121 |   _DEFINE_SPEC(0, __is_integral_helper, long long, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:117:3: note: previous definition of 'struct std::tr1::__is_integral_helper<long long int>'
  117 |   _DEFINE_SPEC(0, __is_integral_helper, int, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:122:3: error: redefinition of 'struct std::tr1::__is_integral_helper<long long unsigned int>'
  122 |   _DEFINE_SPEC(0, __is_integral_helper, unsigned long long, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:118:3: note: previous definition of 'struct std::tr1::__is_integral_helper<long long unsigned int>'
  118 |   _DEFINE_SPEC(0, __is_integral_helper, unsigned int, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:549:3: error: redefinition of 'struct std::tr1::__is_signed_helper<long long int>'
  549 |   _DEFINE_SPEC(0, __is_signed_helper, long long, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:547:3: note: previous definition of 'struct std::tr1::__is_signed_helper<long long int>'
  547 |   _DEFINE_SPEC(0, __is_signed_helper, int, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:564:3: error: redefinition of 'struct std::tr1::__is_unsigned_helper<long long unsigned int>'
  564 |   _DEFINE_SPEC(0, __is_unsigned_helper, unsigned long long, true)
      |   ^
/usr/include/c++/11/tr1/type_traits:562:3: note: previous definition of 'struct std::tr1::__is_unsigned_helper<long long unsigned int>'
  562 |   _DEFINE_SPEC(0, __is_unsigned_helper, unsigned int, true)
      |   ^
In file included from /usr/include/c++/11/tr1/functional:41,
                 from /usr/include/c++/11/ext/pb_ds/detail/standard_policies.hpp:51,
                 from /usr/include/c++/11/ext/pb_ds/assoc_container.hpp:47,
                 from vudu.cpp:16:
/usr/include/c++/11/tr1/functional_hash.h:75:3: error: redefinition of 'std::size_t std::tr1::hash<_Tp>::operator()(_Tp) const [with _Tp = long long int; std::size_t = long unsigned int]'
   75 |   _TR1_hashtable_define_trivial_hash(long long);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/tr1/functional_hash.h:73:3: note: 'std::size_t std::tr1::hash<_Tp>::operator()(_Tp) const [with _Tp = long long int; std::size_t = long unsigned int]' previously declared here
   73 |   _TR1_hashtable_define_trivial_hash(int);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/tr1/functional_hash.h:79:3: error: redefinition of 'std::size_t std::tr1::hash<_Tp>::operator()(_Tp) const [with _Tp = long long unsigned int; std::size_t = long unsigned int]'
   79 |   _TR1_hashtable_define_trivial_hash(unsigned long long);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/tr1/functional_hash.h:77:3: note: 'std::size_t std::tr1::hash<_Tp>::operator()(_Tp) const [with _Tp = long long unsigned int; std::size_t = long unsigned int]' previously declared here
   77 |   _TR1_hashtable_define_trivial_hash(unsigned int);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/traits.hpp:44,
                 from /usr/include/c++/11/ext/pb_ds/detail/branch_policy/traits.hpp:45,
                 from /usr/include/c++/11/ext/pb_ds/assoc_container.hpp:49,
                 from vudu.cpp:16:
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp: In instantiation of 'class __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >':
/usr/include/c++/11/bits/stl_iterator_base_types.h:177:12:   recursively required by substitution of 'template<class _Iterator> struct std::__iterator_traits<_Iterator, std::__void_t<typename _Iterator::iterator_category, typename _Iterator::value_type, typename _Iterator::difference_type, typename _Iterator::pointer, typename _Iterator::reference> > [with _Iterator = __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >]'
/usr/include/c++/11/bits/stl_iterator_base_types.h:177:12:   required from 'struct std::iterator_traits<__gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> > >'
/usr/include/c++/11/ext/pb_ds/detail/branch_policy/branch_policy.hpp:93:68:   required from 'struct __gnu_pbds::detail::branch_policy<__gnu_pbds::detail::bin_search_tree_const_node_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_node_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, std::allocator<char> >, std::allocator<char> >'
/usr/include/c++/11/ext/pb_ds/tree_policy.hpp:64:9:   required from 'class __gnu_pbds::tree_order_statistics_node_update<__gnu_pbds::detail::bin_search_tree_const_node_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_node_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, std::allocator<char> >, std::less<std::pair<long long int, long long int> >, std::allocator<char> >'
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/bin_search_tree_.hpp:99:11:   required from 'class __gnu_pbds::detail::bin_search_tree_set<std::pair<long long int, long long int>, __gnu_pbds::null_type, std::less<std::pair<long long int, long long int> >, __gnu_pbds::detail::tree_traits<std::pair<long long int, long long int>, __gnu_pbds::null_type, std::less<std::pair<long long int, long long int> >, __gnu_pbds::tree_order_statistics_node_update, __gnu_pbds::rb_tree_tag, std::allocator<char> >, std::allocator<char> >'
/usr/include/c++/11/ext/pb_ds/detail/rb_tree_map_/rb_tree_.hpp:84:11:   required from 'class __gnu_pbds::detail::rb_tree_set<std::pair<long long int, long long int>, __gnu_pbds::null_type, std::less<std::pair<long long int, long long int> >, __gnu_pbds::detail::tree_traits<std::pair<long long int, long long int>, __gnu_pbds::null_type, std::less<std::pair<long long int, long long int> >, __gnu_pbds::tree_order_statistics_node_update, __gnu_pbds::rb_tree_tag, std::allocator<char> >, std::allocator<char> >'
/usr/include/c++/11/ext/pb_ds/assoc_container.hpp:555:9:   required from 'class __gnu_pbds::basic_branch<std::pair<long long int, long long int>, __gnu_pbds::null_type, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update<__gnu_pbds::detail::bin_search_tree_const_node_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_node_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, std::allocator<char> >, std::less<std::pair<long long int, long long int> >, std::allocator<char> >, __gnu_cxx::typelist::node<__gnu_cxx::typelist::chain<std::less<std::pair<long long int, long long int> >, __gnu_cxx::typelist::chain<__gnu_pbds::detail::tree_traits<std::pair<long long int, long long int>, __gnu_pbds::null_type, std::less<std::pair<long long int, long long int> >, __gnu_pbds::tree_order_statistics_node_update, __gnu_pbds::rb_tree_tag, std::allocator<char> >, __gnu_cxx::typelist::null_type> > >, std::allocator<char> >'
/usr/include/c++/11/ext/pb_ds/assoc_container.hpp:635:9:   required from 'class __gnu_pbds::tree<std::pair<long long int, long long int>, __gnu_pbds::null_type, std::less<std::pair<long long int, long long int> >, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>'
vudu.cpp:44:13:   required from here
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp:181:7: error: postfix '__gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc> __gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc>::operator++(long long int) [with Node_Pointer = __gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*; Value_Type = std::pair<long long int, long long int>; Pointer = std::pair<long long int, long long int>*; Const_Pointer = const std::pair<long long int, long long int>*; Reference = std::pair<long long int, long long int>&; Const_Reference = const std::pair<long long int, long long int>&; bool Is_Forward_Iterator = true; _Alloc = std::allocator<char>]' must have 'int' as its argument
  181 |       operator++(int)
      |       ^~~~~~~~
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp:196:7: error: postfix '__gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc> __gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc>::operator--(long long int) [with Node_Pointer = __gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*; Value_Type = std::pair<long long int, long long int>; Pointer = std::pair<long long int, long long int>*; Const_Pointer = const std::pair<long long int, long long int>*; Reference = std::pair<long long int, long long int>&; Const_Reference = const std::pair<long long int, long long int>&; bool Is_Forward_Iterator = true; _Alloc = std::allocator<char>]' must have 'int' as its argument
  196 |       operator--(int)
      |       ^~~~~~~~
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp: In instantiation of 'class __gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, false, std::allocator<char> >':
/usr/include/c++/11/type_traits:1102:30:   required from 'struct std::__is_copy_assignable_impl<__gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, true>'
/usr/include/c++/11/type_traits:1107:12:   required from 'struct std::is_copy_assignable<__gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> > >'
/usr/include/c++/11/type_traits:152:12:   required from 'struct std::__and_<std::is_copy_assignable<__gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> > >, std::is_copy_assignable<bool> >'
/usr/include/c++/11/bits/stl_pair.h:390:7:   required from 'struct std::pair<__gnu_pbds::detail::bin_search_tree_const_it_<__gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*, std::pair<long long int, long long int>, std::pair<long long int, long long int>*, const std::pair<long long int, long long int>*, std::pair<long long int, long long int>&, const std::pair<long long int, long long int>&, true, std::allocator<char> >, bool>'
vudu.cpp:58:13:   required from here
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp:181:7: error: postfix '__gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc> __gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc>::operator++(long long int) [with Node_Pointer = __gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*; Value_Type = std::pair<long long int, long long int>; Pointer = std::pair<long long int, long long int>*; Const_Pointer = const std::pair<long long int, long long int>*; Reference = std::pair<long long int, long long int>&; Const_Reference = const std::pair<long long int, long long int>&; bool Is_Forward_Iterator = false; _Alloc = std::allocator<char>]' must have 'int' as its argument
  181 |       operator++(int)
      |       ^~~~~~~~
/usr/include/c++/11/ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp:196:7: error: postfix '__gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc> __gnu_pbds::detail::bin_search_tree_const_it_<Node_Pointer, Value_Type, Pointer, Const_Pointer, Reference, Const_Reference, Is_Forward_Iterator, _Alloc>::operator--(long long int) [with Node_Pointer = __gnu_pbds::detail::rb_tree_node_<std::pair<long long int, long long int>, long unsigned int, std::allocator<char> >*; Value_Type = std::pair<long long int, long long int>; Pointer = std::pair<long long int, long long int>*; Const_Pointer = const std::pair<long long int, long long int>*; Reference = std::pair<long long int, long long int>&; Const_Reference = const std::pair<long long int, long long int>&; bool Is_Forward_Iterator = false; _Alloc = std::allocator<char>]' must have 'int' as its argument
  196 |       operator--(int)
      |       ^~~~~~~~
vudu.cpp: In function 'int main()':
vudu.cpp:74:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
vudu.cpp:75:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~