Submission #899646

#	Time	Username	Problem	Language	Result	Execution time	Memory
899646		ivaziva	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	340 ms	28200 KiB

jobs

#include <bits/stdc++.h>

using namespace std;

long long n,d,m;
vector<pair<pair<long long,long long>,long long>> vec;

bool check(long long mid)
{
    long long dan=1;
    bool da=true;
    long long poz=0;
    while (dan<=n)
    {
        if (!da) break;
        long long br=1;
        while (br<=mid and poz<vec.size())
        {
            long long pocetak=vec[poz].first.first;
            long long kraj=vec[poz].first.second;
            if (dan>=pocetak and dan<=kraj) {poz++;br++;}
            else if (dan>kraj) {da=false;break;}
            else if (dan<pocetak) break;
        }
        dan++;
    }
    return da;
}

void resenje(long long rez)
{
    long long dan=1;
    long long poz=0;
    while (dan<=n)
    {
        long long br=1;
        while (br<=rez and poz<vec.size())
        {
            long long pocetak=vec[poz].first.first;
            long long kraj=vec[poz].first.second;
            if (dan>=pocetak and dan<=kraj)
            {
                cout<<vec[poz].second<<" ";
                poz++;br++;
            }
            else if (dan<pocetak) break;
        }
        cout<<0<<endl;dan++;
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>d>>m;
    for (long long i=1;i<=m;i++)
    {
        long long x; cin>>x;
        vec.push_back({{x,x+d},i});
    }
    sort(vec.begin(),vec.end());
    long long l=1;
    long long r=m;
    long long rez=-1;
    while (l<=r)
    {
        long long mid=(l+r)/2;
        if (check(mid)) {rez=mid;r=mid-1;}
        else l=mid+1;
    }
    cout<<rez<<endl;
    resenje(rez);
}

Compilation message (stderr)

jobs.cpp: In function 'bool check(long long int)':
jobs.cpp:17:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         while (br<=mid and poz<vec.size())
      |                            ~~~^~~~~~~~~~~
jobs.cpp: In function 'void resenje(long long int)':
jobs.cpp:37:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         while (br<=rez and poz<vec.size())
      |                            ~~~^~~~~~~~~~~

• Subtask 1: 100 / 100