oj.uz

Submission #1012102

# Submission time Handle Problem Language Result Execution time Memory
1012102 2024-07-01T16:07:16 Z ThommyDB Job Scheduling (CEOI12_jobs) C++17
100 / 100
 524 ms 25172 KB 
#include<bits/stdc++.h>

using namespace std;

int n, d, m;
vector<int> requests;
map<int,vector<int>> days;

bool possible(int machines){
    queue<int> q;
    for(int i = 0; i < n; i++){
        for(int job = 0; job < days[i].size(); job++){
            q.push(i);
        }
        for(int j = 0; j < machines; j++){
            if(q.empty())break;
            if(i-q.front() > d)return false;
            q.pop();
        }
    }
    if(q.empty()){
        return true;
    }
    return false;
}

signed main(){
    cin >> n >> d >> m;
    requests.resize(m);
    for(int i = 0; i < m; i++){
        cin >> requests[i];
        requests[i]--;
        days[requests[i]].push_back(i+1);
    }

    int machines = 0;
    int l = 1, r = 1e6;
    while(l < r){
        machines = r-(r-l)/2;
        //cout << l << "&&" << r << "&&" << machines << "\n";
        if(possible(machines)){
            r=machines-1;
        }
        else{
            l=machines;
        }
    }
    l++;
    cout << l << "\n";

    queue<pair<int, int>> q;
    for(int i = 0; i < n; i++){
        for(int job = 0; job < days[i].size(); job++){
            q.push({d, days[i][job]});
        }
        for(int j = 0; j < l; j++){
            if(q.empty())break;
            cout << q.front().second << " ";
            q.pop();
        }

        cout << "0\n";
    }
}

Compilation message

jobs.cpp: In function 'bool possible(int)':
jobs.cpp:12:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |         for(int job = 0; job < days[i].size(); job++){
      |                          ~~~~^~~~~~~~~~~~~~~~
jobs.cpp: In function 'int main()':
jobs.cpp:53:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int job = 0; job < days[i].size(); job++){
      |                          ~~~~^~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 3480 KB Output is correct
2 Correct 45 ms 3480 KB Output is correct
3 Correct 44 ms 3480 KB Output is correct
4 Correct 43 ms 3484 KB Output is correct
5 Correct 46 ms 3484 KB Output is correct
6 Correct 47 ms 3672 KB Output is correct
7 Correct 47 ms 3480 KB Output is correct
8 Correct 40 ms 3540 KB Output is correct
9 Correct 138 ms 10324 KB Output is correct
10 Correct 138 ms 10320 KB Output is correct
11 Correct 45 ms 2384 KB Output is correct
12 Correct 74 ms 4512 KB Output is correct
13 Correct 111 ms 6992 KB Output is correct
14 Correct 262 ms 10260 KB Output is correct
15 Correct 190 ms 10484 KB Output is correct
16 Correct 333 ms 14428 KB Output is correct
17 Correct 404 ms 16724 KB Output is correct
18 Correct 369 ms 16464 KB Output is correct
19 Correct 524 ms 25172 KB Output is correct
20 Correct 395 ms 17188 KB Output is correct