Submission #581595

#	Time	Username	Problem	Language	Result	Execution time	Memory
581595		gcconure	Job Scheduling (CEOI12_jobs)	C++17	60 / 100	1097 ms	19496 KiB

jobs

#include <bits/stdc++.h>
 
using namespace std;
using ll = long long;
ll n,d,m; 
vector<pair<ll,ll>> v;
 
bool ok(ll dd){
    int day = 1, w = 0;
    while(day<=n){
        for(int i = 0; i < dd; i++){
            w++;
            if(w==v.size()){
                return true;
            }
            if(day>v[w].first+d){
                return false;
            }
            if(day<v[w].first){
                w--;
            }
        }
        day++;
    }
    return false;
}
 
int main(){
    cin >> n >> d >> m;
    
    
    for(ll i = 0; i < m; i++){
        ll x; cin >> x;
        v.push_back({x,i});
    }
    
    sort(v.begin(), v.end());
    
    ll l = 1,r=m;
    
    while(l<r){
        ll mid = (l+r)/2;
        if(ok(mid)){
            r=mid;
        }
        else{
            l=mid+1;
        }
    }
    
    reverse(v.begin(), v.end());
    ll counter =0 ;
    cout << l << "\n";
    while(!v.empty()){
        counter++;
        for(ll i = 0; i < l; i++){
            cout << v.back().second+1 << " ";
            v.pop_back();
            if(v.empty()){
                break;
            }
        }
        cout << "0\n";
    }
    
    for(ll i = 0; i < n-counter; i++){
        cout << 0 << "\n";
    }
}

Compilation message (stderr)

jobs.cpp: In function 'bool ok(ll)':
jobs.cpp:13:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |             if(w==v.size()){
      |                ~^~~~~~~~~~

• Subtask 1: 60 / 100