oj.uz

Submission #708323

# Submission time Handle Problem Language Result Execution time Memory
708323 2023-03-11T14:58:51 Z Alihan_8 Job Scheduling (CEOI12_jobs) C++17
100 / 100
 284 ms 20984 KB 
#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, D, m; cin >> n >> D >> m;
    vector <pair<int,int>> p;
    for ( int i = 0; i < m; i++ ){
        int x; cin >> x;
        p.pb({x, i});
    }
    sort(all(p));
    auto ok = [&](int x){
        int i = 0, j = 0;
        for ( int day = 1; day <= n; day++ ){
            int K = x; j = i;
            while ( K > 0 and j < m and p[j].first <= day ){
                if ( p[j].first+D < day ) return false;
                j++; K--;
            }
            i = j;
        }
        return i == m;
    };
    int l = 1, r = 1e15;
    while ( l < r ){
        int md = (l+r) >> 1;
        if ( ok(md) ) r = md;
        else l = md+1;
    }
    cout << l << ln;
    int i = 0, j = 0;
    for ( int day = 1; day <= n; day++ ){
        int K = l; j = i;
        while ( j < m and K > 0 and p[j].first <= day ){
            cout << p[j].second+1 << ' ';
            j++; K--;
        }
        i = j;
        cout << "0\n";
    }

    cout << '\n';
}
/*
8 2 12
1 2 4 2 1 3 5 6 2 3 6 4
*/

Compilation message

jobs.cpp: In function 'void IO(std::string)':
jobs.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 2588 KB Output is correct
2 Correct 21 ms 2552 KB Output is correct
3 Correct 20 ms 2628 KB Output is correct
4 Correct 20 ms 2636 KB Output is correct
5 Correct 21 ms 2564 KB Output is correct
6 Correct 22 ms 2628 KB Output is correct
7 Correct 22 ms 2544 KB Output is correct
8 Correct 21 ms 2628 KB Output is correct
9 Correct 31 ms 2796 KB Output is correct
10 Correct 33 ms 2692 KB Output is correct
11 Correct 29 ms 2540 KB Output is correct
12 Correct 60 ms 4812 KB Output is correct
13 Correct 89 ms 8648 KB Output is correct
14 Correct 122 ms 9396 KB Output is correct
15 Correct 145 ms 11628 KB Output is correct
16 Correct 201 ms 16804 KB Output is correct
17 Correct 262 ms 16784 KB Output is correct
18 Correct 260 ms 18456 KB Output is correct
19 Correct 284 ms 20984 KB Output is correct
20 Correct 225 ms 16820 KB Output is correct