Submission #1085431

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085431		vjudge1	Job Scheduling (CEOI12_jobs)	C++14	75 / 100	285 ms	31312 KiB

jobs

#include <bits/stdc++.h>

using namespace std;
long long n,m,d;
const long long MAX=1e5+10;
const long long MMAX=1e6+10;
pair<long long,long long> niza[MMAX];
vector<long long> v[MAX];
bool can(long long x)
{
    if(x<=0)return false;
    if(x>=m)return true;
    long long i=0;

    for(long long day=1; day<=n; day++)
    {
        long long cnt=0;
        while(i<m)
        {
            if(niza[i].first+d<day)return false;
            else if(niza[i].first>day)break;
            cnt++;
            i++;
            if(cnt==x)break;
        }
    }
    if(i>=m)return true;
    return false;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>d>>m;
    for(long long i=0; i<m; i++)
    {
        cin>>niza[i].first;
        niza[i].second=i+1;
    }
    sort(niza,niza+m);
    long long b=0,e=m;
    long long res=m;
    while(b<e)
    {
        long long mid=(b+e)/2;
        if(can(mid))
        {
            res=mid;
            e=mid-1;
        }
        else
        {
            b=mid+1;
        }
    }
    long long i=0;
    for(long long day=1; day<=n; day++)
    {
        long long cnt=0;
        while(i<m)
        {
            if(niza[i].first>day)break;
            v[day].push_back(niza[i].second);
            cnt++;
            i++;

            if(cnt==res)break;
        }


    }
    cout<<res<<endl;
    for(long long i=1; i<=n; i++)
    {
        for(auto x:v[i])
        {
            cout<<x<<" ";
        }
        cout<<0<<endl;
    }
    return 0;
}

• Subtask 1: 75 / 100