Submission #704000

#	Time	Username	Problem	Language	Result	Execution time	Memory
704000		KenIsGenius	Just Long Neckties (JOI20_ho_t1)	C++17	100 / 100	142 ms	17112 KiB

ho_t1

#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define int long long
using namespace std;

#ifdef LOCAL
#define WOSAOJI freopen("in.txt", "r", stdin);
#else 
#define WOSAOJI ios_base::sync_with_stdio(0), cin.tie(0);
#endif

#define chmax(a, b) (a) = (a) > (b) ? (a) : (b)
#define chmin(a, b) (a) = (a) < (b) ? (a) : (b)

const int MAXN = 2e5 + 5;
int n;
int a[MAXN], b[MAXN], c[MAXN];
int st1[MAXN], st2[MAXN];
int pre[MAXN], suf[MAXN];


signed main() {
    WOSAOJI
    cin >> n;
    for (int i = 0; i <= n; i++) cin >> a[i], b[i] = a[i];
    for (int i = 0; i < n; i++) cin >> c[i];
    sort(b, b + 1 + n);
    sort(c, c + n);
    for (int i = 0; i < n; i++) {
        st1[i] = max(-c[i] + b[i], 0ll);
        st2[i] = max(-c[i] + b[i + 1], 0ll);
    }
    pre[0] = st1[0];
    for (int i = 1; i <= n; i++) pre[i] = max(pre[i - 1], st1[i]);
    suf[n - 1] = st2[n - 1];
    for (int i = n - 2; i >= 0; i--) suf[i] = max(suf[i + 1], st2[i]);
    for (int i = 0; i <= n; i++) {
        int it = upper_bound(b, b + n + 1, a[i] - 1) - b;
        int ans = suf[it];
        if (it != 0) chmax(ans, pre[it - 1]);
        cout << ans << " \n"[i == n];
    }
}

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