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Submission #484523

# Submission time Handle Problem Language Result Execution time Memory
484523 2021-11-04T01:40:01 Z 1potato2potato Job Scheduling (CEOI12_jobs) C++17
100 / 100
 397 ms 26352 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;

using vi = vector<int>;
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (int) (x).size()

using pi = pair<int,int>;
#define f first
#define s second
#define mp make_pair


int n, d, m;

pair<bool, vector<vi>> feas(int k, const vector<pi> &jobs) {
	int jobnum = 0;
	vector<vi> ans(n);
	for (int i=1; i<=n; i++) {
		for (int j = 0; j < k; j++) {
			if (jobs[jobnum].f > i) break;

			if (jobs[jobnum].f + d >= i) {
				ans[i - 1].push_back(jobs[jobnum++].s);
			} else {
				// can't fit this job
				return mp(false, ans);
			}

			if (jobnum == m) {
				// finished all jobs
				return mp(true, ans);
			}
		}
	}
	return mp(false, ans);
}
int main() {
	cin.tie(0)->sync_with_stdio(0);
	cin >> n >> d >> m;
	vector<pi> jobs(m);
	for (int i = 0; i < m; i++) {
		int day;
		cin >> day;
		jobs[i] = {day, i + 1};
	}
	sort(all(jobs));

	int lo = 1, hi = m;
	vector<vi> ret;
	while (lo < hi) {
		int mid = (lo + hi) / 2;
		pair<bool, vector<vi>> res = feas(mid, jobs);
		if(res.f) {
			hi = mid;
			ret = res.s;
		} else {
			lo = mid + 1;
		}
	}
	cout << lo << "\n";

	for (int i = 0; i < n; i++) {
		for (int &idx : ret[i]) {
			cout << idx << " ";
		}
		cout << 0 << "\n";
	}
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 2960 KB Output is correct
2 Correct 28 ms 2960 KB Output is correct
3 Correct 28 ms 2960 KB Output is correct
4 Correct 28 ms 2960 KB Output is correct
5 Correct 31 ms 3032 KB Output is correct
6 Correct 29 ms 2960 KB Output is correct
7 Correct 28 ms 2976 KB Output is correct
8 Correct 29 ms 2984 KB Output is correct
9 Correct 73 ms 9636 KB Output is correct
10 Correct 75 ms 9780 KB Output is correct
11 Correct 36 ms 2868 KB Output is correct
12 Correct 78 ms 4948 KB Output is correct
13 Correct 107 ms 8612 KB Output is correct
14 Correct 173 ms 10832 KB Output is correct
15 Correct 189 ms 10892 KB Output is correct
16 Correct 249 ms 16100 KB Output is correct
17 Correct 301 ms 18704 KB Output is correct
18 Correct 309 ms 23156 KB Output is correct
19 Correct 397 ms 26352 KB Output is correct
20 Correct 295 ms 18708 KB Output is correct