Submission #49188

#	Time	Username	Problem	Language	Result	Execution time	Memory
49188		Benq	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	454 ms	20172 KiB

jobs

#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;
 
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;

typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;

template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define F0R(i, a) for (int i=0; i<(a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)

#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()

const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 100001;

vi todo[MX], ans[MX];
int N, D, M;

int gen(int x, bool b = 0) {
    // return 0;
    queue<pi> cur;
    int mx = 0;
    FOR(i,1,N+1) {
        for (int j: todo[i]) cur.push({j,i});
        for (int j = 0; j < x && sz(cur) > 0; ++j) {
            if (b) ans[i].pb(cur.front().f); 
            mx = max(mx,i-cur.front().s);
            cur.pop();
        }
    }
    if (sz(cur)) return MOD;
    return mx;
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> N >> D >> M;
    FOR(i,1,M+1) {
        int x; cin >> x;
        todo[x].pb(i);
    }
    int lo = 1, hi = 1000000;
    while (lo < hi) {
        int mid = (lo+hi)/2;
        if (gen(mid) <= D) hi = mid;
        else lo = mid+1;
    }
    gen(lo,1);
    cout << lo << "\n";
    FOR(i,1,N+1) {
        for (int j: ans[i]) cout << j << " ";
        cout << "0\n";
    }
}

// read the question correctly (is y a vowel? what are the exact constraints?)
// look out for SPECIAL CASES (n=1?) and overflow (ll vs int?)

• Subtask 1: 100 / 100