제출 #1232094

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1232094		chikien2009	Job Scheduling (CEOI12_jobs)	C++20	0 / 100	5 ms	2632 KiB

jobs

#include <bits/stdc++.h>

using namespace std;

void setup()
{
#ifndef ONLINE_JUDGE
    freopen("test.inp", "r", stdin);
    freopen("test.out", "w", stdout);
#endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int n, m, d, a, l, r, mid, res;
vector<int> v[100000];
deque<pair<int, int>> dq;

inline bool Check(int inp)
{
    dq.clear();
    for (int i = 0; i < n; ++i)
    {
        for (auto & j : v[i])
        {
            dq.push_back({i + d, j});
        }
        if (!dq.empty() && dq.front().first < i)
        {
            return false;
        }
        for (int j = 0; j < inp && !dq.empty(); ++j)
        {
            dq.pop_front();
        }
    }
    return dq.empty();
}

int main()
{
    setup();

    cin >> n >> d >> m;
    for (int i = 0; i < m; ++i)
    {
        cin >> a;
        v[a - 1].push_back(i + 1);
    }
    l = 1;
    r = 1000000;
    while (l <= r)
    {
        mid = (l + r) >> 1;
        if (Check(mid))
        {
            res = mid;
            r = mid - 1;
        }
        else
        {
            l = mid + 1;
        }
    }
    cout << res << "\n";
    for (int i = 0; i < n; ++i)
    {
        for (auto & j : v[i])
        {
            dq.push_back({i + d, j});
        }
        if (!dq.empty() && dq.front().first < i)
        {
            return false;
        }
        for (int j = 0; j < res && !dq.empty(); ++j)
        {
            cout << dq.front().second << " ";
            dq.pop_front();
        }
        cout << "0\n";
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

jobs.cpp: In function 'void setup()':
jobs.cpp:8:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     freopen("test.inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
jobs.cpp:9:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     freopen("test.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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