Submission #108199

# Submission time Handle Problem Language Result Execution time Memory
108199 2019-04-28T03:40:45 Z luciocf Gap (APIO16_gap) C++14
40.3152 / 100
627 ms 3576 KB
#include <bits/stdc++.h>
#include "gap.h"

using namespace std;

const int maxn = 1e5+10;
const long long maxv = 1e18;

typedef long long ll;

ll a[maxn];

long long findGap(int T, int N)
{
	if (T == 1)
	{
		ll mn, mx;
		MinMax(0, maxv, &mn, &mx);

		int l = 1, r = N;
		a[1] = mn, a[N] = mx;

		while (true)
		{
			if (r-l <= 1) break;

			MinMax(a[l]+1, a[r]-1, &mn, &mx);

			a[++l] = mn, a[--r] = mx;
		}

		ll ans = 0;
		for (int i = 1; i < N; i++)
			ans = max(ans, a[i+1]-a[i]);

		return ans;
	}

	ll s = 0, mn, mx, last;
	ll ans = 0;

	MinMax(0, maxv, &mn, &mx);

	s = mn, last = mx;

	while (true)
	{
		mn = mx = -1;

		ll k;

		for (ll i = 0; i <= 60 && s+(1LL<<i) <= 2*maxv; i++)
		{
			ll t = s+(1LL<<i);

			MinMax(s+1, t, &mn, &mx);

			if (mn != -1 && mx != -1)
			{
				k = i;
				break;
			}
		}

		MinMax(s+1, s+(1LL<<k), &mn, &mx);

		ans = max(ans, mn-s);

		s = mx;
		if (s >= last) break;
	}

	return ans;
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:50:6: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   ll k;
      ^
# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 18 ms 1044 KB Output is correct
17 Correct 13 ms 1024 KB Output is correct
18 Correct 16 ms 1024 KB Output is correct
19 Correct 18 ms 1024 KB Output is correct
20 Correct 11 ms 768 KB Output is correct
21 Correct 55 ms 3576 KB Output is correct
22 Correct 66 ms 3448 KB Output is correct
23 Correct 53 ms 3488 KB Output is correct
24 Correct 48 ms 3572 KB Output is correct
25 Correct 59 ms 2936 KB Output is correct
26 Correct 55 ms 3576 KB Output is correct
27 Correct 57 ms 3576 KB Output is correct
28 Correct 59 ms 3548 KB Output is correct
29 Correct 47 ms 3500 KB Output is correct
30 Correct 39 ms 2380 KB Output is correct
31 Correct 3 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
# Verdict Execution time Memory Grader output
1 Partially correct 3 ms 512 KB Partially correct
2 Partially correct 2 ms 384 KB Partially correct
3 Partially correct 3 ms 384 KB Partially correct
4 Partially correct 2 ms 384 KB Partially correct
5 Partially correct 3 ms 384 KB Partially correct
6 Partially correct 2 ms 384 KB Partially correct
7 Partially correct 2 ms 384 KB Partially correct
8 Partially correct 2 ms 384 KB Partially correct
9 Partially correct 3 ms 384 KB Partially correct
10 Partially correct 3 ms 384 KB Partially correct
11 Partially correct 11 ms 512 KB Partially correct
12 Partially correct 9 ms 384 KB Partially correct
13 Partially correct 11 ms 384 KB Partially correct
14 Partially correct 8 ms 384 KB Partially correct
15 Partially correct 6 ms 384 KB Partially correct
16 Partially correct 131 ms 896 KB Partially correct
17 Partially correct 129 ms 888 KB Partially correct
18 Partially correct 143 ms 852 KB Partially correct
19 Partially correct 163 ms 884 KB Partially correct
20 Partially correct 14 ms 512 KB Partially correct
21 Partially correct 615 ms 2936 KB Partially correct
22 Partially correct 518 ms 2812 KB Partially correct
23 Partially correct 627 ms 2844 KB Partially correct
24 Partially correct 561 ms 2908 KB Partially correct
25 Partially correct 449 ms 2168 KB Partially correct
26 Partially correct 555 ms 2808 KB Partially correct
27 Partially correct 518 ms 2816 KB Partially correct
28 Partially correct 586 ms 2680 KB Partially correct
29 Partially correct 548 ms 2820 KB Partially correct
30 Partially correct 39 ms 1532 KB Partially correct
31 Partially correct 2 ms 384 KB Partially correct
32 Partially correct 3 ms 384 KB Partially correct