Submission #1046672

#	Time	Username	Problem	Language	Result	Execution time	Memory
1046672		mtshasta	Job Scheduling (CEOI12_jobs)	C++17	35 / 100	150 ms	16248 KiB

jobs

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

void solve() {
    int n, d, m;
    cin >> n >> d >> m;
    vector<int> jobs(m), o(m);
    vector<vector<int>> res(n);
    for (int i = 0; i < m; ++i) {
        cin >> jobs[i];
        --jobs[i];
    }
    iota(o.begin(), o.end(), 0);
    sort(o.begin(), o.end(), [&](int i, int j) { return jobs[i] < jobs[j]; });
    auto ok = [&](int mach) -> bool {
        int id = 0;
        for (int i = 0; i < n; ++i) {
            if (jobs[o[id]] > i) continue;
            int cnt = 0;
            while (id < m && jobs[o[id]] + d >= i && cnt < mach) {
                ++id;
                ++cnt;
            }
        }
        return id == m;
    };
    int l = 1, r = 1e6, ans;
    while (l <= r) {
        int mid = l + (r - l) / 2;
        if (!ok(mid))
            l = mid + 1;
        else {
            ans = mid;
            r = mid - 1;
        }
    }
    cout << ans << '\n';
    int id = 0;
    for (int i = 0; i < n; ++i) {
        if (jobs[o[id]] > i) continue;
        int cnt = 0;
        while (id < m && jobs[o[id]] + d >= i && cnt < ans) {
            cout << o[id] + 1 << ' ';
            ++id;
            ++cnt;
        }
        cout << 0 << '\n';
    }
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}

Compilation message (stderr)

jobs.cpp: In function 'void solve()':
jobs.cpp:44:47: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   44 |         while (id < m && jobs[o[id]] + d >= i && cnt < ans) {
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

• Subtask 1: 35 / 100