제출 #797067

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
797067		arush_agu	Job Scheduling (CEOI12_jobs)	C++17	60 / 100	1085 ms	11512 KiB

jobs

#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>

#ifdef DEBUG
#include <time.h>
#endif

#define all(a) (a).begin(), (a).end()
#define rev(a) (a).rbegin(), (a).rend()
#define F first
#define S second
int recur_depth = 0;
#ifdef DEBUG
#define dbg(x)                                                                 \
  {                                                                            \
    ++recur_depth;                                                             \
    auto x_ = x;                                                               \
    --recur_depth;                                                             \
    cerr << string(recur_depth, '\t') << "\e[91m" << __func__ << ":"           \
         << __LINE__ << "\t" << #x << " = " << x_ << "\e[39m" << endl;         \
  }
#else
#define dbg(x)
#endif

using namespace std;
using namespace __gnu_pbds;

typedef pair<int, int> ii;

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> llll;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pair<int, int>> vii;
typedef vector<vii> vvii;

typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<pair<ll, ll>> vll;
typedef vector<vll> vvll;

typedef vector<bool> vb;

template <class type1>
using ordered_set = tree<type1, null_type, less<type1>, rb_tree_tag,
                         tree_order_statistics_node_update>;

template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p) {
  return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<
                                    !is_same<T_container, string>::value,
                                    typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v) {
  os << '{';
  string sep;
  for (const T &x : v)
    os << sep << x, sep = ", ";
  return os << '}';
}

const ll MOD = 1e9 + 7;
// const ll MOD = 998244353;
const ll INF = 1e9;
const ld EPS = 1e-9;

void solve() {
  int n, d, m;
  cin >> n >> d >> m;
  vii as(m);
  for (auto &[x, _] : as)
    cin >> x;

  for (int i = 0; i < m; i++)
    as[i].second = i;
  sort(all(as));

  auto check = [&](int no_mc) {
    multiset<int> s;
    int m_idx = 0;
    for (int day = 1; day <= n; day++) {
      while (m_idx < m && as[m_idx].first == day)
        s.insert(as[m_idx++].first);

      for (int cnt = 0; cnt < no_mc; cnt++)
        if (s.size()) {
          int curr = *s.begin();
          s.erase(s.begin());

          if (day > curr + d)
            return false;
        }
    }

    return s.empty();
  };

  int l = 1, r = m - 1, ans = m;
  while (l <= r) {
    int mid = (l + r) / 2;
    if (check(mid)) {
      r = mid - 1;
      ans = mid;
    } else
      l = mid + 1;
  }

  vvi on(n + 1);
  multiset<ii> s;
  int m_idx = 0;
  for (int day = 1; day <= n; day++) {
    while (m_idx < m && as[m_idx].first == day)
      s.insert(as[m_idx++]);

    for (int cnt = 0; cnt < ans; cnt++)
      if (s.size()) {
        ii curr = *s.begin();
        s.erase(s.begin());

        on[day].push_back(curr.second);

        assert(day <= curr.first + d);
      }
  }

  cout << ans << "\n";
  for (int i = 1; i <= n; i++) {
    for (int &x : on[i])
      cout << x + 1 << " ";
    cout << "0\n";
  }
}

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);

  clock_t start = clock();

  int test_cases = 1;
  // cin >> test_cases;

  while (test_cases--)
    solve();

#ifdef DEBUG
  cerr << fixed << setprecision(10)
       << "\nTime Taken: " << (double)(clock() - start) / CLOCKS_PER_SEC
       << "s\n";
#endif
  return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

jobs.cpp: In function 'int main()':
jobs.cpp:163:11: warning: unused variable 'start' [-Wunused-variable]
  163 |   clock_t start = clock();
      |           ^~~~~

• Subtask 1: 60 / 100