Submission #1208922

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208922		Vivek_03_	Job Scheduling (CEOI12_jobs)	C++20	100 / 100	308 ms	26908 KiB

jobs

#include <bits/stdc++.h>
#define ll long long
using namespace std;

bool f(int machines, vector<vector<int>>& result, vector<pair<int,int>>& v, int delay, int n)
{
    int ptr = 1;

    for(int i=1;i<=n;i++)
    {
        for(int j=0;j<machines;j++)
        {
            if(v[ptr].first > i) // we need to go to ahead day because now tasks are assigned at days v[ptr].first or later
            break;

            if(v[ptr].first + delay >= i)
            {
                result[i].push_back(v[ptr].second);
                ptr++;
            }
            else return false;

            if(ptr==v.size()) return true;
        }
    }
    return true;
}

int main() {
    int n,d,m;
    cin>>n>>d>>m;

    vector<pair<int,int>> v(m+1);

    for(int i=1;i<=m;i++)
    {
        int start;
        cin>>start;

        v[i] = {start,i};
    }

    sort(v.begin(),v.end());

    vector<vector<int>> result(n+1);
    int l=1,r=m;

    while(l<=r)
    {
        int mid = l + (r-l)/2;

        vector<vector<int>> temp(n+1);
        
        if(f(mid,temp,v,d,n))
        {
            r=mid-1;
            result = temp;
        }
        else l=mid+1;
    }

    cout<<l<<'\n';

    for(int i=1;i<=n;i++)
    {
        for(int j=0;j<result[i].size();j++)
        {
            cout<<result[i][j]<<" ";
        }
        cout<<"0\n";
    }
}

• Subtask 1: 100 / 100