oj.uz

Submission #831226

# Submission time Handle Problem Language Result Execution time Memory
831226 2023-08-20T00:33:31 Z TimAni Job Scheduling (CEOI12_jobs) C++17
100 / 100
 190 ms 13756 KB 
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <iostream>
#include <string>
#include <vector>
#include <set>
#include <map>
#include <numeric>
#include <stack>
#include <queue>
#include <cmath>

//#ifndef ONLINE_JUDGE
//#include "/home/linux/Learning/headers/debug.h"
//#else
//#define debug(...)
//#endif

using namespace std;
using ll = long long;

void setIO(string File_name) {
    cin.tie(0)->sync_with_stdio(0);
    if (File_name.size()) {
        freopen((File_name + ".in").c_str(), "r", stdin);
        freopen((File_name + ".out").c_str(), "w", stdout);
    }
}


void sol() {
    int n, d, m;
    cin >> n >> d >> m;
    vector<pair<int, int>> v(m);
    for (int i = 0; i < m; i++)
        cin >> v[i].first, v[i].second = i + 1;
    sort(v.begin(), v.end());
    auto good = [&](int mid) {
        for (int i = 0, day = 0, free = mid; i < m; day++, free = mid) {
            while (i < m && v[i].first <= day && free > 0) {
                if (day - v[i].first > d) return false;
                i++;
                free--;
            }
        }
        return true;
    };

    int l = 0, r = m + 1;
    while (r > l) {
        int mid = l + (r - l) / 2;
        if (good(mid))
            r = mid;
        else
            l = mid + 1;
    }
    cout << r << '\n';
    int day = v[0].first;
    int free = r;
    for (int i = 0, j = 1; j <= n; j++) {
        while (i < m && v[i].first <= day && free > 0) {
            cout << v[i].second << ' ';
            i++;
            free--;
        }
        cout << "0\n";
        day++;
        free = r;
    }
}

int main() {
    setIO("");
    int T = 1;
    //cin >> T;
    while (T--) sol();
    return 0;
}

Compilation message

jobs.cpp: In function 'void setIO(std::string)':
jobs.cpp:26:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         freopen((File_name + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:27:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |         freopen((File_name + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 1620 KB Output is correct
2 Correct 14 ms 1732 KB Output is correct
3 Correct 14 ms 1684 KB Output is correct
4 Correct 14 ms 1632 KB Output is correct
5 Correct 14 ms 1620 KB Output is correct
6 Correct 14 ms 1632 KB Output is correct
7 Correct 15 ms 1628 KB Output is correct
8 Correct 14 ms 1680 KB Output is correct
9 Correct 27 ms 1868 KB Output is correct
10 Correct 21 ms 1876 KB Output is correct
11 Correct 24 ms 1632 KB Output is correct
12 Correct 41 ms 3176 KB Output is correct
13 Correct 62 ms 4576 KB Output is correct
14 Correct 89 ms 6144 KB Output is correct
15 Correct 107 ms 7628 KB Output is correct
16 Correct 131 ms 9116 KB Output is correct
17 Correct 155 ms 10576 KB Output is correct
18 Correct 180 ms 12084 KB Output is correct
19 Correct 190 ms 13756 KB Output is correct
20 Correct 160 ms 10596 KB Output is correct