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Submission #644750

# Submission time Handle Problem Language Result Execution time Memory
644750 2022-09-25T07:32:11 Z Zflop Job Scheduling (CEOI12_jobs) C++14
100 / 100
 433 ms 26404 KB 
#include <bits/stdc++.h>
using namespace std;

#define all(x) begin(x), end(x)
#define mp make_pair

using pi = pair<int, int>;
using vi = vector<int>;

int N, D, M;
pair<bool, vector<vi>> isFeasible(const vector<pi> &jobs, int machineCount)
{
	vector<vi> schedule(N);
	int reqNum = 0;
	for (int day = 1; day <= N; day++)
	{
		for (int j = 0; j < machineCount; j++)
		{
			if (jobs[reqNum].first > day)
				break;
			if (jobs[reqNum].first + D >= day)
				schedule[day - 1].push_back(jobs[reqNum++].second);
			else
				return mp(false, schedule);
			if (reqNum == M)
				return mp(true, schedule);
		}
	}
	return mp(false, schedule);
}

int main()
{
	cin.tie(0)->sync_with_stdio(false);

	cin >> N >> D >> M;
	vector<pi> jobs(M);
	for (int i = 0; i < M; i++)
	{
		int day;
		cin >> day;
		jobs[i] = mp(day, i + 1);
	}
	sort(all(jobs));

	vector<vi> result;
	int l = 1, r = M;
	while (l < r)
	{
		int machineNum = (l + r) / 2;
		pair<bool, vector<vi>> curResult = isFeasible(jobs, machineNum);
		if (curResult.first)
		{
			r = machineNum;
			result = curResult.second;
		}
		else
			l = machineNum + 1;
	}

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

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 2984 KB Output is correct
2 Correct 32 ms 2972 KB Output is correct
3 Correct 29 ms 2976 KB Output is correct
4 Correct 29 ms 3044 KB Output is correct
5 Correct 31 ms 2964 KB Output is correct
6 Correct 29 ms 2976 KB Output is correct
7 Correct 31 ms 2980 KB Output is correct
8 Correct 33 ms 2968 KB Output is correct
9 Correct 76 ms 9672 KB Output is correct
10 Correct 92 ms 9708 KB Output is correct
11 Correct 39 ms 2716 KB Output is correct
12 Correct 75 ms 4940 KB Output is correct
13 Correct 118 ms 8692 KB Output is correct
14 Correct 188 ms 10800 KB Output is correct
15 Correct 198 ms 10868 KB Output is correct
16 Correct 264 ms 16032 KB Output is correct
17 Correct 308 ms 18832 KB Output is correct
18 Correct 347 ms 23260 KB Output is correct
19 Correct 433 ms 26404 KB Output is correct
20 Correct 311 ms 18844 KB Output is correct