Submission #1292524

#	Time	Username	Problem	Language	Result	Execution time	Memory
1292524		thaibeo123	Just Long Neckties (JOI20_ho_t1)	C++20	100 / 100	65 ms	6884 KiB

ho_t1

#include <bits/stdc++.h>
using namespace std;

#define NAME "A"
#define ll long long
#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
#define MASK(x) (1ll << (x))
#define BIT(x, i) (((x) >> (i)) & 1)

const int N = 2e5 + 5;

int n;
int b[N], ans[N], pre[N], suf[N];
pair<int, int> a[N];

void input() {
    cin >> n;
    for (int i = 1; i <= n + 1; i++) {
        cin >> a[i].fi;
        a[i].se = i;
    }
    for (int i = 1; i <= n; i++) {
        cin >> b[i];
    }
    sort(a + 1, a + 2 + n);
    sort(b + 1, b + 1 + n);
}

void solve() {
    for (int i = 1; i <= n; i++) {
        pre[i] = max(pre[i - 1], a[i].fi - b[i]);
    }
    for (int i = n + 1; i >= 1; i--) {
        suf[i] = max(suf[i + 1], a[i].fi - b[i - 1]);
    }
    for (int i = 1; i <= n + 1; i++) {
        ans[a[i].se] = max(pre[i - 1], suf[i + 1]);
    }
    for (int i = 1; i <= n + 1; i++) {
        cout << ans[i] << " ";
    }
}

signed main() {
    if (fopen(NAME".INP", "r")) {
        freopen(NAME".INP", "r", stdin);
        freopen(NAME".OUT", "w", stdout);
    }
    cin.tie(0)->sync_with_stdio(0);

    int t = 1;
    //cin >> t;
    while (t--) {
        input();
        solve();
    }

    return 0;
}

Compilation message (stderr)

ho_t1.cpp: In function 'int main()':
ho_t1.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |         freopen(NAME".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ho_t1.cpp:50:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |         freopen(NAME".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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