Submission #560804

#	Time	Username	Problem	Language	Result	Execution time	Memory
560804		messiuuuuu	Gap (APIO16_gap)	C++14	30 / 100	1435 ms	524288 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"
#define task "B"
#define ll long long
#define ld long double
#define fi first
#define se second
#define pb push_back
using namespace std;
const int MAXN = 1e5 + 5;
const ll INF = 1e18 + 5;

ll ans = 0;

void Dnc(ll l, ll r)
{
    ll mn, mx;
    MinMax(l, r, &mn, &mx);
    ll mid = (l + r) / 2;
    if (mn == -1)
    {
        return;
    }
    ans = max(ans, mx - mn);
    Dnc(l, mid);
    Dnc(mid + 1, r);
}

ll findGap(int t, int n)
{
    if (t == 1)
    {
        ll l = 0, r = 1e18, a[n + 1];
        for (int i = 1; i <= n && (n - i + 1) >= i; i++)
        {
            MinMax(l, r, &a[i], &a[n - i + 1]);
            l = a[i] + 1;
            r = a[n - i + 1] - 1;
        }
        ans = 0;
        for (int i = 2; i <= n; i++)
        {
            ans = max(ans, a[i] - a[i - 1]);
        }
        return ans;
    }
    ans = 0;
    Dnc(0, 1e18);
    return ans;
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 70