Submission #796885

#	Time	Username	Problem	Language	Result	Execution time	Memory
796885		resting	Meetings (IOI18_meetings)	C++17	Compilation error	0 ms	0 KiB

meetings

#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long

int n, q;
struct segtree {
    int l, r, v = 0;
    segtree* lc, * rc;
    segtree* getmem();
    segtree() : segtree(-1, -1) {};
    segtree(int l, int r) : l(l), r(r) {
        if (l == r) return;
        int m = (l + r) / 2;
        lc = getmem(); *lc = segtree(l, m);
        rc = getmem(); *rc = segtree(m + 1, r);
    }
    void upd(int qi, int qv) {
        if (r < qi || l > qi) return;
        if (l == r) { v = qv; return; }
        lc->upd(qi, qv); rc->upd(qi, qv);
        v = max(lc->v, rc->v);
    }
    int q(int ql, int qr) {
        if (l > qr || r < ql) return 0;
        if (ql <= l && r <= qr) return v;
        return max(lc->q(ql, qr), rc->q(ql, qr));
    }
};
segtree mem[1000005];
int memsz = 0;
segtree* segtree::getmem() { return &mem[memsz++]; }

vector<ll> helper(vector<int> h, vector<int> l, vector<int> r) {
    vector<vector<pair<int, int>>> qq(n);
    for (int i = 0; i < q; i++) qq[r[i]].push_back({ l[i], i });
    vector<ll> c(q);
    ll curad = 0;
    set <pair<int, pair<ll, ll>>> s; //position, {const, slope}
    vector<pair<int, pair<ll, ll>>> st; // index, {value, height} 
    vector<vector<int>> overtake(n + 1);

    auto find_overtake = [&](pair<ll, ll> a, pair<ll, ll>b) -> int { // when a overtakes b as smallest iykyk
        assert(b.second >= a.second); // or its the other way around
        if (a.first <= b.first && a.second <= b.second) return 0;
        if (b.first >= a.first && b.second >= a.second) return n;
        //first i when b.first + b.second * i > a.first + a.second * i
        // (b.second - a.second) * i > a.first - b.first
        // i > (a.first - b.first) / a.second - b.second
        int div = b.second - a.second;
        return (int)(a.first - b.first + (div - 1)) / div;
        };


    segtree ac(0, n - 1);
    for (int i = 0; i < n; i++) {
        ac.upd(i, h[i]);
        while (st.size() && st.back().second.second <= h[i]) st.pop_back();
        curad = st.back().second.first + (i - st.back().first) * h[i];
        st.push_back({ i, {curad, h[i]} });

        //merge set
        ll mn = curad - h[i] * i, mni = i;
        while (s.size() && prev(s.end())->second.second <= h[i]) {
            ll t = prev(s.end())->second.first + prev(s.end())->second.second * i;
            if (t < mn) {
                mn = t + prev(s.end())->second.second * i - h[i] * (i - 1); mni = prev(s.end())->first;
            }
            s.erase(s.begin());
        }
        s.insert({ mni, {mn, h[i]} });
        if (s.size() > 1) {
            overtake[max(i, find_overtake(prev(s.end())->second, prev(prev(s.end()))->second))].push_back(prev(s.end())->first);
        }

        for (int k = 0; k < overtake[i].size(); k++) {
            auto& x = overtake[i][k];
            auto t = s.lower_bound({ x, {0, 0} });
            if (t == s.begin() || t == s.end() || t->first != x) continue;
            auto p = prev(t);
            if (p->second.first + p->second.second * i < t->second.first + t->second.second * i) continue;
            s.erase(p);
            if (t == s.begin()) continue;
            auto pp = prev(t);
            overtake[max(i, find_overtake(t->second, pp->second))].push_back(t->first);
        }

        for (auto& x : qq[i]) {
            c[x.second] = 1e18;
            int l = x.first;
            auto owo = lower_bound(st.begin(), st.end(), pair<int, pair<int, int>>({ l, {0, 0} }));
            auto lll = s.lower_bound({ owo->first, {0, 0} });
            if (lll == s.end()) continue;
            c[x.second] = lll->second.first + lll->second.second * i - owo->second.first + (owo->first - l + 1) * h[ll];
        }
    }
}

vector<ll> minimum_costs(vector<int> h, vector<int> l, vector<int> r) {
    n = h.size(); q = l.size();
    vector<ll> a = helper(h, l, r);
    reverse(h.begin(), h.end()); for (int i = 0; i < q; i++) { swap(l[i], r[i]); l[i] = n - 1 - l[i]; r[i] = n - 1 - r[i]; }
    vector<ll> b = helper(h, l, r);
    vector<ll> c(q); for (int i = 0; i < q;i++) c[i] = min(a[i], b[i]);
    return c;
}

Compilation message (stderr)

meetings.cpp: In function 'std::vector<long long int> helper(std::vector<int>, std::vector<int>, std::vector<int>)':
meetings.cpp:77:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |         for (int k = 0; k < overtake[i].size(); k++) {
      |                         ~~^~~~~~~~~~~~~~~~~~~~
meetings.cpp:5:12: error: expected primary-expression before 'long'
    5 | #define ll long long
      |            ^~~~
meetings.cpp:95:117: note: in expansion of macro 'll'
   95 |             c[x.second] = lll->second.first + lll->second.second * i - owo->second.first + (owo->first - l + 1) * h[ll];
      |                                                                                                                     ^~
meetings.cpp:95:117: error: expected ']' before 'long'
   95 |             c[x.second] = lll->second.first + lll->second.second * i - owo->second.first + (owo->first - l + 1) * h[ll];
      |                                                                                                                     ^
      |                                                                                                                     ]
meetings.cpp:98:1: warning: no return statement in function returning non-void [-Wreturn-type]
   98 | }
      | ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_less_val::operator()(_Iterator, _Value&) const [with _Iterator = __gnu_cxx::__normal_iterator<std::pair<int, std::pair<long long int, long long int> >*, std::vector<std::pair<int, std::pair<long long int, long long int> > > >; _Value = const std::pair<int, std::pair<int, int> >]':
/usr/include/c++/10/bits/stl_algobase.h:1324:14:   required from '_ForwardIterator std::__lower_bound(_ForwardIterator, _ForwardIterator, const _Tp&, _Compare) [with _ForwardIterator = __gnu_cxx::__normal_iterator<std::pair<int, std::pair<long long int, long long int> >*, std::vector<std::pair<int, std::pair<long long int, long long int> > > >; _Tp = std::pair<int, std::pair<int, int> >; _Compare = __gnu_cxx::__ops::_Iter_less_val]'
/usr/include/c++/10/bits/stl_algobase.h:1359:32:   required from '_ForwardIterator std::lower_bound(_ForwardIterator, _ForwardIterator, const _Tp&) [with _ForwardIterator = __gnu_cxx::__normal_iterator<std::pair<int, std::pair<long long int, long long int> >*, std::vector<std::pair<int, std::pair<long long int, long long int> > > >; _Tp = std::pair<int, std::pair<int, int> >]'
meetings.cpp:92:98:   required from here
/usr/include/c++/10/bits/predefined_ops.h:67:22: error: no match for 'operator<' (operand types are 'std::pair<int, std::pair<long long int, long long int> >' and 'const std::pair<int, std::pair<int, int> >')
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
 1096 |     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
 1104 |     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1075:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
 1075 |     operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1075:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1156:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)'
 1156 |     operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1156:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1249:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1249 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1249:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1323:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
 1323 |     operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1323:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'const std::pair<int, std::pair<int, int> >' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1417:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1417 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1417:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1492:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
 1492 |     operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1492:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'const std::pair<int, std::pair<int, int> >' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from meetings.cpp:2:
/usr/include/c++/10/bits/regex.h:1592:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1592 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1592:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:489:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
  489 |     operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:489:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   deduced conflicting types for parameter '_T2' ('std::pair<long long int, long long int>' and 'std::pair<int, int>')
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:366:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
  366 |     operator<(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:366:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::reverse_iterator<_Iterator>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:404:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
  404 |     operator<(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:404:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::reverse_iterator<_Iterator>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1451:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
 1451 |     operator<(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1451:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::move_iterator<_IteratorL>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1507:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
 1507 |     operator<(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1507:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/vector:60,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'std::pair<int, std::pair<long long int, long long int> >' is not derived from 'const std::move_iterator<_IteratorL>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/vector:67,
                 from meetings.h:3,
                 from meetings.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1930:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)'
 1930 |     operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1930:5: note:   template argument deducti