Submission #1285280

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285280		xnoel	Job Scheduling (CEOI12_jobs)	C++20	15 / 100	271 ms	13988 KiB

jobs

#include <bits/stdc++.h>
using namespace std;
int n,delay,m; 
vector<pair<int,int>> vp;

bool alg(int x){
    int idx=0;
    for (int day=1;day<=n;day++) {
        idx=day*x-1;
        if (idx>=m) return true;
        if (vp[idx].first+delay<day) {
            //cout<<"debug: "<<idx<<" "<<vp[idx].first<<" "<<day<<"\n";
            return false;
        }
    }
    if (idx<m-1) {
        //cout<<"debug: "<<idx<<" "<<m<<"\n";
        return false;
    }
    else return true;
}

int main(){
    //freopen("1.in","r",stdin);       
    cin>>n>>delay>>m;

    for (int i=0;i<m;i++) {
        int day;
        cin>>day;
        vp.push_back({day,i+1});
    }
    sort(vp.begin(),vp.end());
    
    // for (auto x: vp) cout<<x.first<<" "<<x.second<<"\n";
    // cout<<"\n";

    int low=1,high=m;
    while (low<high){
        int mid=(low+high)/2;
        if (alg(mid)) high=mid;
        else low=mid+1;
    }
    cout<<low<<"\n";
    for (int i=0;i<n;i++) {
        for (int j=0;j<low;j++) {
            int idx=i*low+j;
            if (idx>=m) {
                break;
            }
            cout<<vp[idx].second<<" ";
        }
        cout<<"0\n";
    }
    
    

}

• Subtask 1: 15 / 100