Submission #568661

#	Time	Username	Problem	Language	Result	Execution time	Memory
568661		gcconure	Job Scheduling (CEOI12_jobs)	C++17	5 / 100	385 ms	65536 KiB

jobs

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
ll n,d,m; 
vector<pair<ll,ll>> v;

vector<vector<ll>> arr;
bool ok(ll dd){
    auto copy=v;
    arr.clear();
    for(ll i = 0; i < n; i++){
        arr.push_back({});
    }
    ll day = 0;
    ll done=0;
    bool works=true;
    while(done<m){
        if(day==n){
            works=false;
            break;
        }
        for(ll i = 0; i < min(ll(v.size()+1),ll(dd)); i++){
            arr[day].push_back(v.back().second);
            v.pop_back();
        }  
        day++;
        done+=dd;
    }
    v=copy;
    return works;
}

int main(){
    cin >> n >> d >> m;
    
    
    for(ll i = 0; i < m; i++){
        ll x; cin >> x;
        v.push_back({x,i});
    }
    
    sort(v.rbegin(), v.rend());
    
    ll l = 1,r=m;
    
    vector<vector<ll>> cur;
    while(l<r){
        ll mid = (l+r)/2;
        if(ok(mid)){
            cur=arr;
            r=mid;
        }
        else{
            l=mid+1;
        }
    }
    
    cout << l << "\n";
    
    for(vector<ll> vv:cur){
        for(ll i:vv){
            cout << i+1 << " ";
        }
        cout << 0 << "\n";
    }
    for(ll i = 0; i < n-cur.size(); i++){
        cout << 0 << "\n";
    }
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:67:21: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'long long unsigned int' [-Wsign-compare]
   67 |     for(ll i = 0; i < n-cur.size(); i++){
      |                   ~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 100