Submission #899718

#	Time	Username	Problem	Language	Result	Execution time	Memory
899718		Karoot	Job Scheduling (CEOI12_jobs)	C++17	100 / 100	333 ms	22868 KiB

jobs

#include <iostream>
#include <cmath>
#include <unordered_map>
#include <map>
#include <set>
#include <queue>
#include <vector>
#include <string>
#include <iomanip>
#include <algorithm>

#define all(x)  (x).begin(), (x).end()
#define rall(x)  (x).rbegin(), (x).rend()

using namespace std;

typedef long long ll;

ll linf = 1e15+1;

inline void scoobydoobydoo(){
    ios::sync_with_stdio(false);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
}

const int MAXN = 1e5+1;

vector<int> v[MAXN];
vector<int> schedule[MAXN];
int n, d, m; 

bool isPossible(int machines){
    queue<pair<int, int> > q;
    for (int i = 0; i < n; i++){
        schedule[i].clear();
        for (int x : v[i])q.push({x, i+d});
        for (int j = 0; j < machines && !q.empty(); j++){
            int node = q.front().first;
            int t = q.front().second;
            q.pop();
            schedule[i].push_back(node);
            if (t < i)return false;
        }
    }
    return true;
}

int main(){
    scoobydoobydoo();
    cin >> n >> d >> m;
    for (int i = 0; i < m; i++){
        int a; cin >> a;
        v[--a].push_back(i+1);
    }

    int a = 1, b = 1000001;
    int ret = -1;
    while (a < b){
        int k = (a+b)>>1;
        if (isPossible(k)){
            b = k;
            ret = k;
        } else {
            a = k+1;
        }
    }


    isPossible(ret);

    cout << ret << endl;
    for (int i = 0; i < n; i++){
        for (int x : schedule[i])cout << x << " ";
        cout << 0 << endl;
    }







    return 0;
}

• Subtask 1: 100 / 100