답안 #970485

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
970485	2024-04-26T15:43:21 Z	DAleksa	3단 점프 (JOI19_jumps)	C++17	컴파일 오류	0 ms	0 KB

jumps

#include <bits/stdc++.h>

using namespace std;

#define int long long

struct query {
    int l, r;
    int ans;
};

struct node {
    int mx;
    int ans;
    int lzy;
};

const int N = 5e5 + 10;
int n, q;
int a[N];
query Q[N];
node st[4 * N];
vector<int> qs[N];
vector<int> upd[N];
stack<int> stk;

void build(int index, int l, int r) {
    if(l > r) return;
    if(l == r) {
        st[index].mx = a[l];
        st[index].ans = 0;
        st[index].lzy = 0;
        return;
    }
    int mid = (l + r) / 2;
    build(2 * index, l, mid);
    build(2 * index + 1, mid + 1, r);
    st[index].mx = max(st[2 * index].mx, st[2 * index + 1].mx);
}

void propagate(int index) {
    if(2 * index + 1 < 4 * N && st[index].lzy > 0) {
        st[2 * index].ans = max(st[2 * index].ans, st[2 * index].mx + st[index].lzy);
        st[2 * index].lzy = max(st[2 * index].lzy, st[index].lzy);
        st[2 * index + 1].ans = max(st[2 * index + 1].ans, st[2 * index + 1].mx + st[index].lzy);
        st[2 * index + 1].lzy = max(st[2 * index + 1].lzy, st[index].lzy);
        st[index].lzy = 0;
    }
}

void update(int index, int l, int r, int L, int R, int val) {
    if(l > r || r < L || R < l) return;
    if(L <= l && r <= R) {
        st[index].ans = max(st[index].ans, val + st[index].mx);
        st[index].lzy = max(st[index].lzy, val);
        return;
    }
    propagate(index);
    int mid = (l + r) / 2;
    update(2 * index, l, mid, L, R, val);
    update(2 * index + 1, mid + 1, r, L, R, val);
    st[index].ans = max({t[2 * index].ans, st[2 * index + 1].ans, st[index].mx + val});
}

int get(int index, int l, int r, int L, int R) {
    if(l > r || r < L || R < l) return 0;
    if(L <= l && r <= R) return st[index].ans;
    propagate(index);
    int mid = (l + r) / 2;
    return max(get(2 * index, l, mid, L, R), get(2 * index + 1, mid + 1, r, L, R));
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n;
    for(int i = 1; i <= n; i++) cin >> a[i];
    cin >> q;
    for(int i = 1; i <= q; i++) {
        cin >> Q[i].l >> Q[i].r;
        qs[Q[i].l].push_back(i);
    }
    for(int i = 1; i <= n; i++) {
        while(!stk.empty() && a[stk.top()] <= a[i]) stk.pop();
        if(!stk.empty()) {
            int x = stk.top(), y = i;
            if(y + (y - x) <= n) upd[x].push_back(y);
        }
        stk.push(i);
    }
    while(!stk.empty()) stk.pop();
    for(int i = n; i >= 1; i--) {
        while(!stk.empty() && a[stk.top()] <= a[i]) stk.pop();
        if(!stk.empty()) {
            int x = i, y = stk.top();
            if(y + (y - x) <= n) upd[x].push_back(y);
        }
        stk.push(i);
    }
    build(1, 1, n);
    for(int l = n; l >= 1; l--) {
        for(int y : upd[l]) {
            int x = l;
            int z = y + (y - x);
            update(1, 1, n, z, n, a[x] + a[y]);
        }
        for(int ind : qs[l]) {
            int r = Q[ind].r;
            Q[ind].ans = get(1, 1, n, l, r);
        }
    }
    for(int i = 1; i <= q; i++) cout << Q[i].ans << "\n";
    return 0;
}

Compilation message

jumps.cpp: In function 'void update(long long int, long long int, long long int, long long int, long long int, long long int)':
jumps.cpp:62:26: error: 't' was not declared in this scope
   62 |     st[index].ans = max({t[2 * index].ans, st[2 * index + 1].ans, st[index].mx + val});
      |                          ^
jumps.cpp:62:86: error: no matching function for call to 'max(<brace-enclosed initializer list>)'
   62 |     st[index].ans = max({t[2 * index].ans, st[2 * index + 1].ans, st[index].mx + val});
      |                                                                                      ^
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 jumps.cpp:1:
/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:
jumps.cpp:62:86: note:   candidate expects 2 arguments, 1 provided
   62 |     st[index].ans = max({t[2 * index].ans, st[2 * index + 1].ans, st[index].mx + val});
      |                                                                                      ^
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 jumps.cpp:1:
/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:
jumps.cpp:62:86: note:   candidate expects 3 arguments, 1 provided
   62 |     st[index].ans = max({t[2 * index].ans, st[2 * index + 1].ans, st[index].mx + val});
      |                                                                                      ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from jumps.cpp:1:
/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:
/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: