Submission #927609

#	Time	Username	Problem	Language	Result	Execution time	Memory
927609		math_rabbit_1028	Measures (CEOI22_measures)	C++14	0 / 100	313 ms	25828 KiB

Main

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

int N, M;
ll D;
vector<ll> arr;

int cnt = 0;
struct segtree {
    ll lt[808080], rt[808080], mx[808080], sum[808080];
    void update(int v, int st, int ed, int idx, ll val) {
        if (st > idx || ed < idx) return;
        if (st == ed) {
            lt[v] = rt[v] = mx[v] = sum[v] = val;
            return;
        }
        int mid = (st+ed)/2;
        update(2*v, st, mid, idx, val);
        update(2*v+1, mid+1, ed, idx, val);

        if (sum[2*v] > 0) lt[v] = max(lt[2*v], lt[2*v+1] + sum[2*v]);
        else lt[v] = lt[2*v];
        if (sum[2*v+1] > 0) rt[v] = max(rt[2*v+1], rt[2*v] + sum[2*v+1]);
        else rt[v] = rt[2*v+1];
        mx[v] = max(mx[2*v], mx[2*v+1]);
        mx[v] = max(mx[v], rt[2*v]+lt[2*v+1]);
        sum[v] = sum[2*v] + sum[2*v+1];
    }
} seg;

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

    cin >> N >> M >> D;
    
    for (int i = 1; i <= M; i++) {
        ll a;
        cin >> a;

        if (i > 1) seg.update(1, 1, M, i, D - (a-arr.back()));
        ll ans = seg.mx[1];
        if (ans%2) cout << ans/2 << ".5 ";
        else cout << ans/2 << " ";

        arr.push_back(a);
    }

    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 35
• Subtask 4: 0 / 41