Submission #540449

#	Time	Username	Problem	Language	Result	Execution time	Memory
540449		BhavayGoyal	Job Scheduling (CEOI12_jobs)	C++14	80 / 100	323 ms	42352 KiB

jobs

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template<class T> using oset = 
            tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

#define int long long
#define vii vector<vector<int>>
#define vi vector<int>
#define v vector
#define pii pair<int, int>
#define mii map<int, int>
#define umii unordered_map<int, int>
#define si set<int>
#define usi unordered_set<int>
#define all(x) x.begin(), x.end()
#define f first
#define s second
#define endl "\n"
#define pb push_back
#define MOD 1000000007
int inf = 1e9;

int n, d, m; 
v<pii> arr(m);
vii answer;
vii actualans;

bool isFiss(int mid)
{
    for (int i = 0; i < n; i++) answer[i].clear();
    int idx = 0;
    for (int i = 1; i <= n; i++)
    {
        for (int j = 0; j < mid; j++)
        {
            if (arr[idx].f > i) break;
            if (i <= arr[idx].f + d) answer[i-1].pb(arr[idx++].s);
            else return false;
            if (idx == m) return true;
        }
    }
    return false;
}

void sol()
{
    cin >> n >> d >> m;
    arr = v<pii>(m);
    answer = vii(n);
    for (int i = 0; i < m; i++)
    {
        cin >> arr[i].f;
        arr[i].s = i+1;
    }
    sort (all(arr));

    int i = 1, j = m;
    int ans = m;
    while (i <= j)
    {
        int mid = (i+j)/2;
        if (isFiss(mid))
        {
            actualans = answer;
            ans = mid;
            j = mid-1;
        }
        else i = mid+1;
    }
    cout << ans << endl;
    for (int i = 0; i < n; i++)
    {
        for (auto j : actualans[i]) cout << j << " ";
        cout << 0 << endl;
    }
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    
    int t;
    t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++)
        sol();
}

• Subtask 1: 80 / 100