oj.uz

Submission #925538

# Submission time Handle Problem Language Result Execution time Memory
925538 2024-02-11T23:43:06 Z allw Job Scheduling (CEOI12_jobs) C++17
100 / 100
 350 ms 22600 KB 
#include <iostream>
#include <vector>
#include <algorithm>
 
bool run(std::vector<std::pair<int, int>>& a, int d, int x, 
         std::vector<std::vector<int>>& answer) {
    int i = 0;
    for (int j = 1; i < a.size() && j < answer.size(); ++j) {
        for (int k = 0; i < a.size() && k < x; ++k) {
            if (a[i].first > j) break;
            if (a[i].first + d < j) return false;
            if (j >= a[i].first && j <= a[i].first + d) {
                answer[j].push_back(a[i].second);
                ++i;
            }
        }
    } 
 
    return i == a.size();
}
 
int main() {
    int n, d, m;
    std::cin >> n >> d >> m;
    std::vector<std::pair<int, int>> a(m, {0, 0});
 
    for (int i = 0; i < m; ++i) {
        std::cin >> a[i].first;
        a[i].second = i + 1;
    }
    std::sort(a.begin(), a.end());
 
    int l = 0;
    int r = m;
    std::vector<std::vector<int>> answer;
    // (l, r]
    while (l + 1 < r) {
        answer = std::vector<std::vector<int>>(n + 1, std::vector<int>());
        int middle = (l + r) / 2;
        if (run(a, d, middle, answer)) {
            r = middle;
        } else {
            l = middle;
        }
    }
 
    answer = std::vector<std::vector<int>>(n + 1, std::vector<int>());
    run(a, d, r, answer);
    std::cout << r << '\n';
 
    for (int i = 1; i <= n; ++i) {
        for (size_t j = 0; j < answer[i].size(); ++j) {
            std::cout << answer[i][j] << ' ';
        }
        std::cout << "0\n";
    }
}

Compilation message

jobs.cpp: In function 'bool run(std::vector<std::pair<int, int> >&, int, int, std::vector<std::vector<int> >&)':
jobs.cpp:8:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int j = 1; i < a.size() && j < answer.size(); ++j) {
      |                     ~~^~~~~~~~~~
jobs.cpp:8:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int j = 1; i < a.size() && j < answer.size(); ++j) {
      |                                     ~~^~~~~~~~~~~~~~~
jobs.cpp:9:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |         for (int k = 0; i < a.size() && k < x; ++k) {
      |                         ~~^~~~~~~~~~
jobs.cpp:19:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     return i == a.size();
      |            ~~^~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 2464 KB Output is correct
2 Correct 29 ms 2468 KB Output is correct
3 Correct 29 ms 2724 KB Output is correct
4 Correct 29 ms 2468 KB Output is correct
5 Correct 29 ms 2476 KB Output is correct
6 Correct 29 ms 2588 KB Output is correct
7 Correct 35 ms 2724 KB Output is correct
8 Correct 29 ms 2732 KB Output is correct
9 Correct 44 ms 8556 KB Output is correct
10 Correct 43 ms 9392 KB Output is correct
11 Correct 37 ms 2308 KB Output is correct
12 Correct 75 ms 4160 KB Output is correct
13 Correct 112 ms 6632 KB Output is correct
14 Correct 184 ms 9280 KB Output is correct
15 Correct 190 ms 9668 KB Output is correct
16 Correct 262 ms 12180 KB Output is correct
17 Correct 314 ms 16616 KB Output is correct
18 Correct 309 ms 16712 KB Output is correct
19 Correct 350 ms 22600 KB Output is correct
20 Correct 312 ms 16252 KB Output is correct