Submission #260065

#	Time	Username	Problem	Language	Result	Execution time	Memory
260065		MiricaMatei	Job Scheduling (CEOI12_jobs)	C++17	100 / 100	355 ms	17272 KiB

jobs

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 100005;
const int MAXM = 1000005;

pair<int, int> v[MAXM];

bool ok(int n, int d, int m, int k) {
  int j = 1;
  for (int i = 1; i <= n; ++i) {
    int k1 = k;
    while (j <= m && v[j].first <= i && k1 > 0) {
      if (i - v[j].first > d)
        return 0;
      j++;
      k1--;
    }
  }
  return 1;
}

int main() {
  //freopen("date.in", "r", stdin);
  //freopen("date.out", "w", stdout);

  int n, d, m;
  scanf("%d%d%d", &n, &d, &m);
  for (int i = 1; i <= m; ++i) {
    scanf("%d", &v[i].first);
    v[i].second = i;
  }

  sort(v + 1, v + m + 1);

  int ans = 0;
  for (int i = 19; i >= 0; --i)
    if (ans + (1 << i) < m && !ok(n, d, m, ans + (1 << i)))
      ans += (1 << i);

  printf("%d\n", ans + 1);
  int k = ans + 1, j = 1;
  for (int i = 1; i <= n; ++i) {
    int k1 = k;
    while (j <= m && v[j].first <= i && k1 > 0) {
      printf("%d ", v[j].second);
      if (i - v[j].first > d)
        return 0;
      j++;
      k1--;
    }
    printf("0\n");
  }

  return 0;
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:29:8: 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:31:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &v[i].first);
     ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100