oj.uz

답안 #1036302

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1036302 2024-07-27T08:28:05 Z parsadox2 Fish 3 (JOI24_fish3) C++17
0 / 100
 181 ms 49260 KB 
#include <bits/stdc++.h>
#define int long long
#define F first
#define S second
using namespace std;

const int N = 3e5 + 10;
int n , a[N] , D , ans[N] , q , s[N];
vector <pair<int , int>> qu[N];

struct SEG{
    int a[N << 2] , b[N << 2];
    void Add(int l , int r , int A , int B , int node = 1 , int nl = 1 , int nr = n + 1)
    {
        if(r <= nl || nr <= l)
            return;
        if(l <= nl && nr <= r)
        {
            a[node] += A;
            b[node] += B;
            return;
        }
        int mid = (nl + nr) >> 1 , lc = node << 1 , rc = lc | 1;
        Add(l , r , A , B , lc , nl , mid);
        Add(l , r , A , B , rc , mid , nr);
    }
    int Get(int id , int node = 1 , int nl = 1 , int nr = n + 1)
    {
        int res = a[node] * id + b[node];
        if(nr - nl == 1)
            return res;
        int mid = (nl + nr) >> 1 , lc = node << 1 , rc = lc | 1;
        if(id < mid)
            res += Get(id , lc , nl , mid);
        else
            res += Get(id , rc , mid , nr);
        return res;
    }
} seg;

signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);  cout.tie(0);
    cin >> n >> D;
    for(int i = 1 ; i <= n ; i++)
        cin >> a[i];
    cin >> q;
    for(int i = 0 ; i < q ; i++)
    {
        int l , r;  cin >> l >> r;
        qu[r].push_back(make_pair(l , i));
    }
    vector <int> st;
    for(int i = 1 ; i <= n ; i++)
    {
        if(a[i] >= a[i - 1])
        {
            s[i] = (a[i] - a[i - 1]) / D;
            st.push_back(i);
        }
        else
        {
            int k = (a[i - 1] - a[i] + D - 1) / D;
            seg.Add(1 , i , -k , k * i);
            while(!st.empty() && k > 0)
            {
                int tmp = min(k , s[st.back()]);
                seg.Add(1 , st.back() , tmp , -tmp * i);
                s[st.back()] -= tmp;
                k -= tmp;
                if(s[st.back()] == 0)
                    st.pop_back();
            }
        }
        for(auto u : qu[i])
            ans[u.S] = seg.Get(u.F);
    }
    for(int i = 0 ; i < q ; i++)
        cout << ans[i] << '\n';
    return 0;
}

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7512 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Incorrect 3 ms 7364 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 165 ms 44396 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 69 ms 24660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 133 ms 35536 KB Output is correct
2 Correct 142 ms 43980 KB Output is correct
3 Correct 98 ms 27952 KB Output is correct
4 Correct 163 ms 47308 KB Output is correct
5 Correct 164 ms 48468 KB Output is correct
6 Correct 179 ms 49148 KB Output is correct
7 Correct 164 ms 39524 KB Output is correct
8 Correct 181 ms 49260 KB Output is correct
9 Incorrect 138 ms 43980 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7512 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Incorrect 3 ms 7364 KB Output isn't correct
4 Halted 0 ms 0 KB -