Submission #484122

#	Time	Username	Problem	Language	Result	Execution time	Memory
484122		Valera_Grinenko	Job Scheduling (CEOI12_jobs)	C++17	100 / 100	416 ms	20160 KiB

jobs

#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")
#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <set>
#include <stack>
#include <map>
#include <unordered_map>
#include <iomanip>
#include <cmath>
#include <queue>
#include <bitset>
#include <numeric>
#include <array>
#include <cstring>
#include <random>
#include <chrono>
#include <ctime>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define make_unique(x) sort(all((x))); (x).resize(unique(all((x))) - (x).begin())
typedef long long ll;
typedef long double ld;
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
// template<class T>
// using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
int main() {

  ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

  int n, d, m;

  cin >> n >> d >> m;

  vector<pair<int, int> > req(m);

  for(int i = 0; i < m; i++) {
    cin >> req[i].fi; req[i].se = i + 1;
  }

  sort(all(req));

  int l = 0, r = m;

  while(l < r) {
    int mb = (l + r) / 2;
    vector<vector<int> > ans(n + 1);
    int cpos = 0;
    bool bad = false;
    for(int cday = 1; cday <= n; cday++) {
      for(int j = 0; j < mb; j++) {
        if(req[cpos].fi > cday) break;
        if(req[cpos].fi + d >= cday) {
          ans[cday].pb(req[cpos].se);
          cpos++;
        } else { bad = true; break; }
        if(cpos == m) break;
      }
      if(bad || cpos == m) break;
    }
    bad |= (cpos < m);
    if(bad) l = mb + 1;
    else r = mb;
  }

  vector<vector<int> > ans(n + 1);

  int cpos = 0;

  for(int cday = 1; cday <= n; cday++) {
    for(int j = 0; j < l; j++) {
      if(req[cpos].fi > cday) break;
      if(req[cpos].fi + d >= cday) {
        ans[cday].pb(req[cpos].se);
        cpos++;
      }
    }
  }

  cout << l << '\n';

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

  return 0;
}
/*

*/

Compilation message (stderr)

jobs.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("unroll-loops")
      |

• Subtask 1: 100 / 100