oj.uz

답안 #733416

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
733416 2023-04-30T16:42:45 Z jared Job Scheduling (CEOI12_jobs) C++14
100 / 100
 396 ms 20168 KB 
#include <bits/stdc++.h>

#ifdef LOCAL_TEST

#include "debugging.h"

#endif

using namespace std;

void setio(string filename) {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    if (getenv("stdio")) filename = "";
    else if (getenv("local_test")) filename = "test";

    if (!filename.empty()) {
        freopen((filename + ".in").c_str(), "r", stdin);
        freopen((filename + ".out").c_str(), "w", stdout);
    }
}

vector<vector<int>> days;

bool ok(vector<pair<int, int>> &x, int n, int d, int target, bool out) {
    int ptr = 0;
    for (int day = 1; day <= n; day++) {
        int daily_cnt = target;
        while (daily_cnt--) {
            if (ptr >= x.size()) break;
            if (x[ptr].first > day) break;
            if (day - x[ptr].first > d) return false;
            if (out) days[day - 1].push_back(x[ptr].second);
            ptr++;
        }
    }
    return ptr >= x.size();
}

int main() {
    setio("");

    int n, d, m;
    cin >> n >> d >> m;
    vector<pair<int, int>> x;
    for (int i = 1; i <= m; i++) {
        int tmp;
        cin >> tmp;
        x.emplace_back(tmp, i);
    }
    sort(x.begin(), x.end());

    int l = 1, r = m;
    while (l < r) {
        int mid = l + (r - l) / 2;

        if (ok(x, n, d, mid, false)) r = mid;
        else l = mid + 1;
    }

    cout << l << endl;
    days.resize(n);
    ok(x, n, d, l, true);
    for (auto &day: days) {
        for (int id: day)
            cout << id << ' ';
        cout << 0 << endl;
    }
}

Compilation message

jobs.cpp: In function 'bool ok(std::vector<std::pair<int, int> >&, int, int, int, bool)':
jobs.cpp:31:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |             if (ptr >= x.size()) break;
      |                 ~~~~^~~~~~~~~~~
jobs.cpp:38:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     return ptr >= x.size();
      |            ~~~~^~~~~~~~~~~
jobs.cpp: In function 'void setio(std::string)':
jobs.cpp:19:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         freopen((filename + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:20:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |         freopen((filename + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 2532 KB Output is correct
2 Correct 43 ms 2588 KB Output is correct
3 Correct 33 ms 2532 KB Output is correct
4 Correct 41 ms 2600 KB Output is correct
5 Correct 31 ms 2512 KB Output is correct
6 Correct 33 ms 2512 KB Output is correct
7 Correct 34 ms 2552 KB Output is correct
8 Correct 37 ms 2560 KB Output is correct
9 Correct 150 ms 4792 KB Output is correct
10 Correct 153 ms 4916 KB Output is correct
11 Correct 36 ms 2152 KB Output is correct
12 Correct 69 ms 4196 KB Output is correct
13 Correct 92 ms 6584 KB Output is correct
14 Correct 140 ms 9004 KB Output is correct
15 Correct 163 ms 9672 KB Output is correct
16 Correct 188 ms 11936 KB Output is correct
17 Correct 235 ms 15932 KB Output is correct
18 Correct 246 ms 16436 KB Output is correct
19 Correct 396 ms 20168 KB Output is correct
20 Correct 206 ms 15932 KB Output is correct