oj.uz

Submission #1085586

# Submission time Handle Problem Language Result Execution time Memory
1085586 2024-09-08T13:00:56 Z vjudge1 Job Scheduling (CEOI12_jobs) C++17
100 / 100
 197 ms 17236 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 2136 KB Output is correct
2 Correct 13 ms 2136 KB Output is correct
3 Correct 13 ms 2136 KB Output is correct
4 Correct 14 ms 2112 KB Output is correct
5 Correct 13 ms 2140 KB Output is correct
6 Correct 14 ms 2136 KB Output is correct
7 Correct 13 ms 2036 KB Output is correct
8 Correct 13 ms 2140 KB Output is correct
9 Correct 24 ms 2140 KB Output is correct
10 Correct 24 ms 2036 KB Output is correct
11 Correct 19 ms 2140 KB Output is correct
12 Correct 40 ms 4060 KB Output is correct
13 Correct 59 ms 5716 KB Output is correct
14 Correct 87 ms 8040 KB Output is correct
15 Correct 98 ms 9552 KB Output is correct
16 Correct 148 ms 12112 KB Output is correct
17 Correct 145 ms 13936 KB Output is correct
18 Correct 163 ms 15116 KB Output is correct
19 Correct 197 ms 17236 KB Output is correct
20 Correct 156 ms 13904 KB Output is correct