Submission #977263

#	Time	Username	Problem	Language	Result	Execution time	Memory
977263		LOLOLO	Job Scheduling (CEOI12_jobs)	C++17	90 / 100	1038 ms	28500 KiB

jobs

#include <bits/stdc++.h>
typedef long long ll;
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 = 2e5 + 100;
vector <int> work[N], on[N];
int n, d;

bool bin(int lim) {
    for (int i = 1; i <= n; i++)
        work[i].clear();

    priority_queue <pair <int, int>, vector <pair <int, int>>, greater <pair <int, int>>> pq;
    for (int i = 1; i <= n; i++) {
        for (auto x : on[i]) {
            pq.push({i, x});
        }

        for (int j = 1; j <= lim; j++) {
            if (pq.empty())
                break;

            auto t = pq.top();
            if (i - t.f > d)
                return 0;

            work[i].pb(t.s);
            pq.pop();
        }
    }

    if (sz(pq))
        return 0;

    return 1;
}

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

    int m;
    cin >> n >> d >> m;

    for (int i = 1; i <= m; i++) {
        int x;
        cin >> x;
        on[x].pb(i);
    }

    int l = 1, r = m, ans = 0;
    while (l <= r) {
        int mid = (l + r) / 2;
        if (bin(mid)) {
            ans = mid;
            r = mid - 1;
        } else {
            l = mid + 1;
        }
    }

    bin(ans);

    cout << ans << '\n';

    for (int i = 1; i <= n; i++) {
        for (auto x : work[i])
            cout << x << " ";

        cout << 0 << '\n';
    }

    return 0;
} 

• Subtask 1: 90 / 100