Submission #938083

#	Time	Username	Problem	Language	Result	Execution time	Memory
938083		TAhmed33	Job Scheduling (CEOI12_jobs)	C++98	0 / 100	95 ms	3952 KiB

jobs

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6 + 25;
int n, d, m;
int a[MAXN];
bool check (int x) {
	bool flag = 1;
	int ptr = 1;
	for (int day = 1; day <= n; day++) {
		int cnt = 0;
		while (ptr <= m && a[ptr] <= day && cnt + 1 <= x) {
			flag &= day <= a[ptr] + d;
			ptr++; cnt++;
		} 
	}
	flag &= ptr == m + 1;
	return flag;
}
void cringe () {
	for (int i = 1; i <= n; i++) cout << 0 << endl;
}
int main () {
	ios::sync_with_stdio(0); cin.tie(0);
	//freopen("rand", "r", stdin);
	cin >> n >> d >> m;
	for (int i = 1; i <= m; i++) cin >> a[i];
	sort(a + 1, a + m + 1);
	int l = 1, r = m - 1, ans = m;
	while (l <= r) {
		int mid = (l + r) >> 1;
		if (check(mid)) {
			r = mid - 1; ans = mid;
		} else {
			l = mid + 1;
		}
	}
	cout << ans << '\n';
	//cringe();
}

• Subtask 1: 0 / 100