Submission #650822

#	Time	Username	Problem	Language	Result	Execution time	Memory
650822		borisAngelov	Job Scheduling (CEOI12_jobs)	C++11	0 / 100	445 ms	26372 KiB

jobs

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

const int MAXN = 100005;

int n, m, d;

vector<pair<int, int>> jobs;

pair<bool, vector<vector<int>>> check(int machines) {
    vector<vector<int>> schedule;
    schedule.resize(n + 1);

    int currMachineIdx = 1;
    int currDay = 1;

    for (auto [day, idx] : jobs) {
        if (currDay > day + d || currDay > n) {
            return {false, schedule};
        }

        schedule[currDay].push_back(idx);

        currMachineIdx++;
        if (currMachineIdx == machines + 1) {
            currMachineIdx = 1;
            currDay++;
        }
    }

    return {true, schedule};
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> d >> m;

    for (int i = 1; i <= m; i++) {
        int day; cin >> day;
        jobs.push_back({day, i});
    }

    sort(jobs.begin(), jobs.end());

    int l = 1;
    int r = m;

    while (l <= r) {
        int mid = (l + r) / 2;

        if (check(mid).first) r = mid - 1;
        else l = mid + 1;
    }

    cout << l << endl;

    vector<vector<int>> schedule = check(l).second;

    for (int i = 1; i <= n; i++) schedule[i].push_back(0);

    for (int i = 1; i <= n; i++) {
        for (auto idx : schedule[i]) cout << idx << " "; cout << "\n";
    }

    return 0;
}

Compilation message (stderr)

jobs.cpp: In function 'std::pair<bool, std::vector<std::vector<int> > > check(int)':
jobs.cpp:20:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   20 |     for (auto [day, idx] : jobs) {
      |               ^
jobs.cpp: In function 'int main()':
jobs.cpp:66:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   66 |         for (auto idx : schedule[i]) cout << idx << " "; cout << "\n";
      |         ^~~
jobs.cpp:66:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   66 |         for (auto idx : schedule[i]) cout << idx << " "; cout << "\n";
      |                                                          ^~~~

• Subtask 1: 0 / 100