Submission #528157

#	Time	Username	Problem	Language	Result	Execution time	Memory
528157		Aanjaney	Job Scheduling (CEOI12_jobs)	C++17	0 / 100	3 ms	380 KiB

jobs

#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define MOD 1000000007
#define MODA 998244353
#define pb push_back
#define sortv(v) sort(v.begin(), v.end())
#define sorta(A, N) sort(A, A + N)
#define debug(x) cerr << #x << " is " << x;
#define rep(i, a, N) for (ll i = a; i < N; i++)
#define f first
#define s second
#define uniq(v)                                       \
    {                                                 \
        sort(v.begin(), v.end());                     \
        v.erase(unique(v.begin(), v.end()), v.end()); \
    }
#define speed                         \
    ios_base::sync_with_stdio(false); \
    cin.tie(NULL);                    \
    cout.tie(NULL);
using namespace std;

void solve(ll tcase)
{
    ll N, D, M;
    cin >> N >> D >> M;
    vector<pair<ll, ll> > a(M);
    rep(i, 0, M)
    {
        cin >> a[i].f;
        a[i].f += D;
        a[i].s = i;
    }
    sortv(a);
    ll lo = 1, hi = M + 1;
    while (lo < hi)
    {
        ll mid = (lo + hi) / 2;
        ll pos = 0, flag = 1;
        rep(day, 1, N + 1)
        {
            pos += mid;
            ll x = min(pos, M);
            ll last = a[x - 1].f;
            if (last < day)
            {
                flag = 0;
                break;
            }
            if (pos >= M)
                break;
        }
        if (!flag || pos < M)
            lo = mid + 1;
        else
            hi = mid;
    }
    cout << hi << "\n";
    ll pos = 0;
    rep(day, 1, N + 1)
    {
        while (pos < M)
        {
            ll x = min(pos + hi, M);
            rep(i, pos, x)
                    cout
                << a[i].s + 1 << ' ';
            pos = x;
            break;
        }
        cout << "0\n";
    }
}
int main()
{
#ifndef ONLINE_JUDGE
    freopen("cowdance.in", "r", stdin);
    freopen("cowdance.out", "w", stdout);
#endif
    speed;
    ll t = 1;
    rep(i, 1, t + 1)
        solve(i);
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:78:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |     freopen("cowdance.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:79:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |     freopen("cowdance.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100