Submission #642989

#	Time	Username	Problem	Language	Result	Execution time	Memory
642989		thinhcute	Job Scheduling (CEOI12_jobs)	C++17	100 / 100	229 ms	13728 KiB

jobs

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

#define fi first
#define se second

#define MAX 1001000

int n, d, m;
pair<int, int> a[MAX];

bool f(int mid)
{
    for (int i = 1, j = 1; i <= n && j < m; ++i) {
        int cnt = 0;
        while (j < m && cnt < mid && a[j].first <= i && a[j].first + d >= i) {
            ++cnt;
            ++j;
        } 
        if (j <= m && a[j].first + d < i) return false;
    }
    return true;
}

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

    cin >> n >> d >> m;
    for (int i = 1; i <= m; i++) {
        cin >> a[i].fi;
        a[i].se = i;
    }

    sort(a + 1, a + m + 1);

    int l = 1, r = m, res = -1;
    while (l <= r) {
        int mid = (l + r) >> 1;
        if (f(mid)) {
            res = mid;
            r = mid - 1;
        } else l = mid + 1;
    }

    cout << res << endl;
    
    for (int i = 1, j = 1; i <= n; ++i) {
        int cnt = 0;
        while (j <= m && cnt < res && a[j].first <= i && a[j].first + d >= i) {
            cout << a[j].second << " ";
            ++cnt;
            ++j;
        } 
        cout << "0\n";
    }

    return 0;
}

• Subtask 1: 100 / 100