Submission #389056

# Submission time Handle Problem Language Result Execution time Memory
389056 2021-04-13T14:55:37 Z prvocislo Gap (APIO16_gap) C++17
49.7181 / 100
109 ms 7784 KB
#include "gap.h"
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <queue>
#include <map>
#include <set>
#include <iomanip>
typedef long long ll;
using namespace std;

// MinMax(, , &, &);
ll best;
void upd(ll x)
{
	best = max(best, x);
}
long long findGap1(int N)
{
	ll mini = -1, maxi = 1e18 + 79;
	vector<ll> v(N);
	for (int l = 0, r = N - 1; l <= r; l++, r--)
	{
		mini++, maxi--;
		MinMax(mini, maxi, &mini, &maxi);
		v[l] = mini;
		v[r] = maxi;
	}
	ll ans = 0;
	for (int i = 0; i < N - 1; i++) ans = max(ans, v[i + 1] - v[i]);
	return ans;
}
long long findGap(int T, int N)
{
	if (T == 1)return findGap1(N);
	ll mini = -1, maxi = 1e18; best = 1;
	set<ll> s;
	set<pair<ll, pair<ll, ll> >, greater<pair<ll, pair<ll, ll> >> > pq;
	MinMax(mini, maxi, &mini, &maxi);
	s.insert({ mini, maxi });
	pq.insert({ maxi - mini, {mini, maxi} });
	while (!pq.empty())
	{
		ll dist = pq.begin()->first;
		if (dist <= best) return best;
		mini = pq.begin()->second.first;
		maxi = pq.begin()->second.second;
		if (mini + 1 == maxi) break;
		if (mini + 2 == maxi)
		{
			ll a;
			MinMax(mini + 1, maxi - 1, &a, &a);
			if (a == -1) upd(2);
			else upd(1);
			break;
		}
		pq.erase(pq.begin());
		ll m1 = (mini + maxi) / 2, m2 = (mini + maxi) / 2 + 1;
		ll mi1, mx1, mi2, mx2;
		MinMax(mini + 1, m1, &mi1, &mx1);
		MinMax(m2, maxi - 1, &mi2, &mx2);
		if (mi1 != -1) s.insert(mi1), s.insert(mx1);
		if (mi2 != -1) s.insert(mi2), s.insert(mx2);
		upd(*next(s.find(mini)) - mini);
		upd(maxi - *prev(s.find(maxi)));
		if (mx1 != -1 && mi2 != -1) upd(mi2 - mx1);
		pq.insert({ mx1 - mi1, {mi1, mx1} });
		pq.insert({ mx2 - mi2, {mi2, mx2} });
	}
	return best;
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 0 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 240 KB Output is correct
11 Correct 1 ms 328 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 456 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 11 ms 712 KB Output is correct
17 Correct 11 ms 628 KB Output is correct
18 Correct 12 ms 680 KB Output is correct
19 Correct 12 ms 600 KB Output is correct
20 Correct 9 ms 584 KB Output is correct
21 Correct 44 ms 1824 KB Output is correct
22 Correct 47 ms 1824 KB Output is correct
23 Correct 46 ms 1856 KB Output is correct
24 Correct 59 ms 1828 KB Output is correct
25 Correct 40 ms 1828 KB Output is correct
26 Correct 48 ms 1820 KB Output is correct
27 Correct 44 ms 1816 KB Output is correct
28 Correct 44 ms 1828 KB Output is correct
29 Correct 45 ms 1804 KB Output is correct
30 Correct 36 ms 1864 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 1 ms 200 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 2 ms 200 KB Output is correct
4 Correct 0 ms 200 KB Output is correct
5 Partially correct 1 ms 200 KB Partially correct
6 Partially correct 1 ms 200 KB Partially correct
7 Partially correct 1 ms 200 KB Partially correct
8 Partially correct 1 ms 200 KB Partially correct
9 Partially correct 1 ms 200 KB Partially correct
10 Correct 1 ms 200 KB Output is correct
11 Partially correct 1 ms 328 KB Partially correct
12 Partially correct 2 ms 328 KB Partially correct
13 Partially correct 1 ms 328 KB Partially correct
14 Partially correct 1 ms 328 KB Partially correct
15 Partially correct 2 ms 328 KB Partially correct
16 Partially correct 18 ms 936 KB Partially correct
17 Partially correct 13 ms 908 KB Partially correct
18 Partially correct 12 ms 968 KB Partially correct
19 Partially correct 13 ms 900 KB Partially correct
20 Correct 5 ms 456 KB Output is correct
21 Partially correct 53 ms 3104 KB Partially correct
22 Partially correct 53 ms 3084 KB Partially correct
23 Partially correct 55 ms 3056 KB Partially correct
24 Partially correct 52 ms 3108 KB Partially correct
25 Partially correct 109 ms 7784 KB Partially correct
26 Partially correct 57 ms 3072 KB Partially correct
27 Partially correct 53 ms 3104 KB Partially correct
28 Partially correct 53 ms 3136 KB Partially correct
29 Partially correct 57 ms 3104 KB Partially correct
30 Correct 13 ms 980 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 1 ms 272 KB Output is correct