Submission #1167609

#	Time	Username	Problem	Language	Result	Execution time	Memory
1167609		chikien2009	Just Long Neckties (JOI20_ho_t1)	C++20	0 / 100	1 ms	320 KiB

ho_t1

#include <bits/stdc++.h>

using namespace std;

inline 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, b[200000], pre[200000], suf[200000], res[200001];
pair<int, int> a[200001];

int main()
{
    setup();

    cin >> n;
    for (int i = 0; i < n + 1; ++i)
    {
        cin >> a[i].first;
        a[i].second = i;
    }
    for (int i = 0; i < n; ++i)
    {
        cin >> b[i];
    }
    sort(a, a + n + 1);
    sort(b, b + n);
    for (int i = 0; i < n; ++i)
    {
        pre[i] = max((i == 0 ? 0 : pre[i - 1]), a[i].first - b[i]);
    }
    for (int i = n - 1; i >= 0; --i)
    {
        suf[i] = max((i == n - 1 ? 0 : suf[i + 1]), a[i + 1].first - b[i]);
    }
    for (int i = 0; i <= n; ++i)
    {
        if (i == 0)
        {
            res[a[i].second] = suf[0];
        }
        else if (i == n)
        {
            res[a[i].second] = pre[n - 1];
        }
        else
        {
            res[a[i].second] = max(pre[i - 1], suf[i]);
        }
    }
    for (int i = 0; i <= n; ++i)
    {
        cout << res[i] << " ";
    }
    return 0;
}

Compilation message (stderr)

ho_t1.cpp: In function 'void setup()':
ho_t1.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);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ho_t1.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);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 1
• Subtask 2: 0 / 8
• Subtask 3: 0 / 91