Submission #500147

#	Time	Username	Problem	Language	Result	Execution time	Memory
500147		mhsi2005	Job Scheduling (CEOI12_jobs)	C++17	40 / 100	1097 ms	37216 KiB

jobs

// In the name of God

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <class T> using indexed_set = tree<T, null_type, less<T>,
	rb_tree_tag, tree_order_statistics_node_update>;

#define watch(x) cerr << "{" << (#x) << " = " << x << "}" << '\n';
#define watch2(x, y) cerr << "{" << (#x) << " = " << x << ", " << (#y) << " = " << y << "}" << '\n';
#define watch3(x, y, z) cerr << "{" << (#x) << " = " << x << ", " << (#y) << " = " << y << ", " << (#z) << " = " << z << "}" << '\n';
#define fast_io ios::sync_with_stdio(false); cin.tie(0), cout.tie(0);

const ll maxn = 1e6 + 10, INF = 1e9;

int n, d, m;
pii a[maxn];
vector<vector<int>> ans(n);

bool ok (int x)
{
    ans.clear();
    ans.resize(n+10);
    multiset<int> s;
    for (int i = 0; i < x; i++)
        s.insert(1);
    for (int i = 0; i < m; i++) {
        auto it = s.upper_bound(a[i].first + d);
        if (it == s.begin()) {
            if (*it - a[i].first > d)
                return false;
        }
        else
            it--;
        assert(it != s.end());
        int f = *it;
        s.erase(it);
        s.insert(max(f, a[i].first) + 1);
        ans[max(f, a[i].first)].push_back(a[i].second);
    }
    return true;
}

int main()
{
    fast_io

    cin >> n >> d >> m;
    for (int i = 0; i < m; i++) {
        cin >> a[i].first;
        a[i].second = i+1;
    }
    sort(a, a + m);
    int l = 0, r = 1e6;
    while (r > l + 1) {
        int mid = (r + l) / 2;
        if (ok(mid)) r = mid;
        else l = mid;
    }

    cout << r << '\n';

    for (int i = 1; i <= n; i++) {
        for (int x : ans[i]) {
            cout << x << ' ';
        }
        cout << 0 << '\n';
    }

	return 0;
}

• Subtask 1: 40 / 100