Submission #985914

#	Time	Username	Problem	Language	Result	Execution time	Memory
985914		LOLOLO	Trading (IZhO13_trading)	C++17	100 / 100	290 ms	33876 KiB

trading

#include <bits/stdc++.h>
#define ll long long
using namespace std;
 
#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 3e5 + 10;

int seg[N * 4], laz[N * 4];

void push(int id) {
    int &t = laz[id];
    laz[id * 2] += t;
    laz[id * 2 + 1] += t;
    seg[id * 2] += t;
    seg[id * 2 + 1] += t;
    t = 0;
}

void upd(int id, int l, int r, int u, int v, int c) {
    if (l > v || r < u)
        return;

    if (l >= u && r <= v) {
        laz[id] += c;
        seg[id] += c;
        return;
    }

    push(id);
    int m = (l + r) / 2;
    upd(id * 2, l, m, u, v, c);
    upd(id * 2 + 1, m + 1, r, u, v, c);
    seg[id] = max(seg[id * 2], seg[id * 2 + 1]);
}

void run(int id, int l, int r, int p, int v) {
    if (l > p || r < p)
        return;

    if (l == r) {
        seg[id] = v;
        laz[id] = 0;
        return;
    } 

    push(id);
    int m = (l + r) / 2;
    run(id * 2, l, m, p, v);
    run(id * 2 + 1, m + 1, r, p, v);
    seg[id] = max(seg[id * 2], seg[id * 2 + 1]);
}

vector <int> event[N];
int l[N], r[N], v[N];

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

    seg[1] = laz[1] = -1e8;
    int n, m;
    cin >> n >> m;

    for (int i = 1; i <= m; i++) {
        cin >> l[i] >> r[i] >> v[i];
        event[l[i]].pb(i);
        event[r[i] + 1].pb(-i);
    }

    for (int i = 1; i <= n; i++) {
        upd(1, 1, m, 1, m, 1);
        for (auto x : event[i]) {
            if (x > 0) {
                run(1, 1, m, x, v[x]);
            } else {
                run(1, 1, m, -x, -1e8);
            }
        }

        cout << max(0, seg[1]) << " ";
    }

    return 0;
} 

• Subtask 1: 100 / 100