제출 #36686

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
36686		RockyB	Job Scheduling (CEOI12_jobs)	C++11	100 / 100	749 ms	22592 KiB

jobs

/// In The Name Of God

#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")

#include <bits/stdc++.h>

#define f first
#define s second

#define pb push_back
#define pp pop_back
#define mp make_pair

#define sz(x) (int)x.size()
#define sqr(x) ((x) * 1ll * (x))
#define all(x) x.begin(), x.end()

#define Kazakhstan ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);

#define nl '\n'
#define ioi exit(0);

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;

const int N = (int)1e6 + 7, inf = (int)1e9 + 7, mod = (int)1e9 + 7;
const ll linf = (ll)1e18 + 7;
const int dx[] = {-1, 0, 1, 0, 1, -1, -1, 1}, dy[] = {0, 1, 0, -1, 1, -1, 1, -1};

using namespace std;

int n, d, m;
pair <int, int> a[N];
int cnt[(int)1e5 + 7];

bool check(int total) {
	memset(cnt, 0, sizeof(cnt));
	for (int i = 1; i <= m; i++) {
		bool ok = 0;
		for (int j = a[i].f; j <= a[i].f + d; j++) {
			if (cnt[j] < total) {
				cnt[j]++;
				ok = 1;
				break;
			}
		}
		if (!ok) return 0;
	}
	return 1;
}
int main() {
	#ifdef IOI2018
		freopen ("in.txt", "r", stdin);
	#endif
	scanf ("%d%d%d", &n, &d, &m);
	for (int i = 1; i <= m; i++) {
		scanf ("%d", &a[i].f);
		a[i].s = i;
	}
	sort (a + 1, a + 1 + m);
	int l = 1, r = m, res = m;
	while (l <= r) {
		int mid = (l + r) >> 1;
		if (check(mid)) res = mid, r = mid - 1;
		else l = mid + 1;
	}
	{
		memset(cnt, 0, sizeof(cnt));
		vector < pair <int, int> > ans;
		for (int i = 1; i <= m; i++) {
			for (int j = a[i].f; j <= a[i].f + d; j++) {
				if (cnt[j] < res) {
					cnt[j]++;
					ans.pb({j, a[i].s});
					break;
				}
			}
		}
		printf ("%d\n", res);
		sort(all(ans));
		int ptr = 0;
		for (int i = 1; i <= n; i++) {
			while (ptr < sz(ans) && ans[ptr].f < i) ptr++;
			while (ptr < sz(ans) && ans[ptr].f == i) {
				printf ("%d ", ans[ptr++].s);
			}
			printf ("0\n");
		}
	}
	ioi
}

컴파일 시 표준 에러 (stderr) 메시지

jobs.cpp: In function 'int main()':
jobs.cpp:57:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d%d%d", &n, &d, &m);
                              ^
jobs.cpp:59:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d", &a[i].f);
                        ^

• Subtask 1: 100 / 100