Submission #1285504

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285504		xnoel	Job Scheduling (CEOI12_jobs)	C++20	60 / 100	315 ms	20996 KiB

jobs

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

bool alg(long long x){
    long long preday=0,leftover=0;
    for (auto [day,count]: mp){
        leftover= max(leftover+count-(day-preday)*x,0LL);
        if (leftover>x*delay) return false;
        preday=day;
    }
    return true;
}

int main(){
    cin>>n>>delay>>m;

    for (long long i=0;i<m;i++) {
        long long day;
        cin>>day;
        mp[day]++;
        vp.push_back({day,i+1});
    }
    sort(vp.begin(),vp.end());

    // for (auto x: mp) cout<<x.first<<" "<<x.second<<"\n";
    // cout<<"\n";

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

• Subtask 1: 60 / 100