Submission #507570

#	Time	Username	Problem	Language	Result	Execution time	Memory
507570		Christopher_	Job Scheduling (CEOI12_jobs)	C++17	100 / 100	236 ms	20800 KiB

jobs

/**
 *    author:  lani
 *    created: 12.01.2022 20:57:54
**/
#include <bits/stdc++.h>

using namespace std;

#ifdef DEBUG
  #include "debug.hpp"
#else
  #define dbg(...) void(37)
#endif

#define int long long

int32_t main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, d, m;
  cin >> n >> d >> m;
  vector<pair<int,int>> a(m);
  for (int i = 0; i < m; ++i) {
    cin >> a[i].first;
    a[i].second = i;
  }
  sort(a.begin(), a.end());
  auto Check = [&](int k) {
    int day = 1, work = 0;
    for (int i = 0; i < m; ++i) {
      if (a[i].first > day) {
        day = a[i].first;
        work = 1;
      } else if (a[i].first + d < day) {
        return false;
      } else {
        ++work;
      }
      if (work >= k) {
        work = 0;
        ++day;
      }
    }
    return true;
  };
  int ans = (int) 1e7;
  int low = 0, high = (int) 1e7;
  while (low <= high) {
    int mid = (low + high) >> 1;
    if (Check(mid)) {
      high = mid - 1;
      ans = mid;
    } else {
      low = mid + 1;
    }
  }
  cout << ans << '\n';
  dbg();
  int work = 0;
  for (int i = 0; i < n; ++i) {
    int cnt = 0;
    while (work < m && cnt < ans && a[work].first <= i + 1) {
      cout << a[work].second + 1 << ' ';
      ++work;
      ++cnt;
    }
    cout << "0\n";
  }
}

• Subtask 1: 100 / 100