답안 #883484

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
883484	2023-12-05T10:54:53 Z	vjudge1	Ants and Sugar (JOI22_sugar)	C++17	컴파일 오류	0 ms	0 KB

sugar

// https://oj.uz/problem/view/JOI22_sugar

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

/*

Hall's theorem
Answer = A - max(|S| - |NG(S)|)

*/

const int64_t inf = 1e18;

class segtree_t {
       public:
        segtree_t *left, *right;
        int l, r, m;
        int64_t x[2][2], lazyx, lazy_mid, mid;

        segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1) {
                for (int i = 0; i < 2; i++) {
                        for (int j = 0; j < 2; j++) {
                                x[i][j] = 0;
                        }
                }
                if (l == r) return;
                left = new segtree_t(l, m);
                right = new segtree_t(m + 1, r);
        }

        void Update(int s, int t, int64_t val) {
                if (l > t || r < s) return;
                if (s <= l && r <= t) {
                        for (int i = 0; i < 2; i++) {
                                for (int j = 0; j < 2; j++) {
                                        x[i][j] += val;
                                }
                        }
                        lazyx += val;
                        lazy_mid += val;
                        mid += val;
                        return;
                }
                Down();
                if (s <= m && m < t) mid += val;
                left->Update(s, t, val);
                right->Update(s, t, val);
                Up();
        }

        void Down() {
                for (int i = 0; i < 2; i++) {
                        for (int j = 0; j < 2; j++) {
                                left->x[i][j] += lazyx;
                                right->x[i][j] += lazyx;
                        }
                }
                left->lazy_mid += lazy_mid;
                left->lazyx += lazyx;
                left->mid += lazy_mid;
                right->lazy_mid += lazy_mid;
                right->lazyx += lazyx;
                right->mid += lazy_mid;
                lazy_mid = lazyx = 0;
        }

        void Up() {
                for (int i = 0; i < 2; i++) {
                        for (int j = 0; j < 2; j++) {
                                x[i][j] = -inf;
                                for (int k = 0; k < 2; k++) {
                                        x[i][j] = max(x[i][j], left->x[i][k] + right->x[k][j] - 1ll * k * mid);
                                }
                        }
                }
                for (int i = 0; i < 2; i++) {
                        x[i][0] = max(x[i][0], left->x[i][0]);
                        x[0][i] = max(x[0][i], right->x[0][i]);
                }
        }
};

int32_t main() {
        ios_base::sync_with_stdio(0);
        cin.tie(0);

        int q, L;
        cin >> q >> L;
        vector<int> t(q), a(q), x(q);
        for (int i = 0; i < q; i++) cin >> t[i] >> x[i] >> a[i];
        vector<int> cord;
        for (int i = 0; i < q; i++) {
                if (t[i] == 1) cord.emplace_back(x[i]);
        }
        sort(cord.begin(), cord.end());
        cord.resize(unique(cord.begin(), cord.end()) - cord.begin());
        int N = cord.size();

        segtree_t* tree = new segtree_t(0, N);

        int64_t A = 0;

        for (int i = 0; i < q; i++) {
                if (t[i] == 1) {
                        A += a[i];
                        int y = lower_bound(cord.begin(), cord.end(), x[i]) - cord.begin();
                        tree->Update(y, y, +a[i]);
                } else {
                        int u = lower_bound(cord.begin(), cord.end(), x[i] - L) - cord.begin();
                        int v = upper_bound(cord.begin(), cord.end(), x[i] + L) - cord.begin() - 1;
                        tree->Update(u, v, -a[i]);
                }
                cout << A - max<int64_t>(0, tree->x[0][0]) << '\n';
        }
}

Compilation message

sugar.cpp: In constructor 'segtree_t::segtree_t(int, int)':
sugar.cpp:21:51: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |         segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1) {
      |                                                 ~~^~~
sugar.cpp: In member function 'void segtree_t::Up()':
sugar.cpp:73:110: error: no matching function for call to 'max(int64_t&, long long int)'
   73 |                                         x[i][j] = max(x[i][j], left->x[i][k] + right->x[k][j] - 1ll * k * mid);
      |                                                                                                              ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sugar.cpp:3:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
sugar.cpp:73:110: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'long long int')
   73 |                                         x[i][j] = max(x[i][j], left->x[i][k] + right->x[k][j] - 1ll * k * mid);
      |                                                                                                              ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sugar.cpp:3:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
sugar.cpp:73:110: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'long long int')
   73 |                                         x[i][j] = max(x[i][j], left->x[i][k] + right->x[k][j] - 1ll * k * mid);
      |                                                                                                              ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from sugar.cpp:3:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
sugar.cpp:73:110: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   73 |                                         x[i][j] = max(x[i][j], left->x[i][k] + right->x[k][j] - 1ll * k * mid);
      |                                                                                                              ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from sugar.cpp:3:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
sugar.cpp:73:110: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   73 |                                         x[i][j] = max(x[i][j], left->x[i][k] + right->x[k][j] - 1ll * k * mid);
      |                                                                                                              ^