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Submission #1085590

# Submission time Handle Problem Language Result Execution time Memory
1085590 2024-09-08T13:04:20 Z EntityPlantt Job Scheduling (CEOI12_jobs) C++17
100 / 100
 184 ms 13796 KB 
#include <iostream>
#include <algorithm>
using namespace std;

const int M = 1e6 + 1, N = 100001;
int m, n, d;
pair <int, int> job[M];

template <bool write> bool simulate(int maxMachines) {
	int i = 0, j = 0;
	for (int day = 1; day <= n; day++) {
		if (write) cout << '\n';
		int machinesLeft = maxMachines;
		while (j < m && job[j].first == day) j++;
		while (i < j && machinesLeft) {
			if (job[i].first + d < day) return false;
			machinesLeft--;
			if (write) cout << job[i].second << ' ';
			i++;
		}
		if (write) cout << 0;
	}
	return true;
}

signed main() {
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	cin >> n >> d >> m;
	for (int i = 0; i < m; i++) {
		cin >> job[i].first;
		job[i].second = i + 1;
	}
	sort(job, job + m);
	// for (int i = 0; i < m; i++) cerr << job[i].second << '\n';
	int l = 0, r = m, ans;
	while (l <= r) {
		int mid = l + r >> 1;
		if (simulate<false>(mid)) {
			ans = mid;
			r = mid - 1;
		}
		else l = mid + 1;
	}
	cout << ans;
	simulate<true>(ans);
	return 0;
}

Compilation message

jobs.cpp: In function 'int main()':
jobs.cpp:38:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |   int mid = l + r >> 1;
      |             ~~^~~
jobs.cpp:36:20: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   36 |  int l = 0, r = m, ans;
      |                    ^~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 1624 KB Output is correct
2 Correct 12 ms 1820 KB Output is correct
3 Correct 13 ms 1628 KB Output is correct
4 Correct 13 ms 1628 KB Output is correct
5 Correct 13 ms 1624 KB Output is correct
6 Correct 13 ms 1628 KB Output is correct
7 Correct 13 ms 1628 KB Output is correct
8 Correct 14 ms 1624 KB Output is correct
9 Correct 25 ms 1768 KB Output is correct
10 Correct 24 ms 1880 KB Output is correct
11 Correct 20 ms 1628 KB Output is correct
12 Correct 41 ms 3156 KB Output is correct
13 Correct 58 ms 4688 KB Output is correct
14 Correct 83 ms 6132 KB Output is correct
15 Correct 96 ms 7760 KB Output is correct
16 Correct 124 ms 9044 KB Output is correct
17 Correct 142 ms 10528 KB Output is correct
18 Correct 167 ms 12076 KB Output is correct
19 Correct 184 ms 13796 KB Output is correct
20 Correct 142 ms 10528 KB Output is correct