제출 #642385

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
642385		accidentac	Job Scheduling (CEOI12_jobs)	C++14	0 / 100	318 ms	7724 KiB

jobs

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

int n, d, m;
vector<array<int, 2>> jobs;

// return true if can use count no. of machines to handle all jobs
bool ok(int count) {
	for (int i = 1, l = 0, r = 0; i <= n; i++) {
		while (r < m && jobs[r][0] >= i) {
			r++;
		}
		int cur = 0;
		while (l < r && cur < count) {
			if (i - jobs[l][0] > d) return false;
			l++;
			cur++;
			if (l == m) return true;
		}
	}
	return false;
}

int main() {
	// ios_base::sync_with_stdio(0);
	// cin.tie(0);
	cin >> n >> d >> m;
	jobs = vector<array<int, 2>>(m);
	for (int i = 0; i < m; i++) {
		cin >> jobs[i][0];
		jobs[i][1] = i + 1;
	}
	sort(jobs.begin(), jobs.end());
	int lo = 1, hi = m, ans = m;
	while (lo <= hi) {
		int mid = lo + (hi - lo) / 2;
		if (ok(mid)) {
			ans = mid;
			hi = mid - 1;
		} else {
			lo = mid + 1;
		}
	}
	cout << ans << endl;
}

• Subtask 1: 0 / 100