#include "prize.h"
const int MAXN = 2e5 + 1;
std::vector<int> ans[MAXN];
bool off[MAXN];
int countOff[MAXN];
void add(int i)
{
while (i <= MAXN)
{
countOff[i]++;
i += i & (-i);
}
}
int sum(int i)
{
int res = 0;
while (i > 0)
{
res += countOff[i];
i -= i & (-i);
}
return res;
}
int searchgood(std::vector<int> space, int non)
{
if (space.empty())
return -1;
int middle = space[space.size() / 2];
std::vector<int> a = ask(middle);
if (a[0] + a[1] == 0)
return middle;
if (a[0] + a[1] != non)
{
off[middle] = true;
add(middle + 1);
return -1;
}
if (a[0] - sum(middle) != 0)
return searchgood(std::vector<int>(space.begin(), space.begin() + space.size() / 2), non);
return searchgood(std::vector<int>(space.begin() + space.size() / 2 + 1, space.end()), non);
}
int find_best(int n)
{
if (n < 474)
{
for (int i = 0; i < n; i++)
if (ask(i)[0] + ask(i)[1] == 0)
return i;
return -1;
}
int step = n / 474;
int nonLollipop = 0;
for (int iBlock = 0; iBlock < n; iBlock += step)
{
ans[iBlock] = ask(std::min(iBlock + step, n) - 1);
nonLollipop = std::max(nonLollipop, ans[iBlock][0] + ans[iBlock][1]);
}
int done = 0;
for (int iBlock = 0; iBlock < n; iBlock += step)
{
int end = std::min(iBlock + step, n) - 1;
int idk = 0;
while (end != iBlock && ans[iBlock][0] + ans[iBlock][1] != nonLollipop)
{
if (ans[iBlock][0] + ans[iBlock][1] == 0)
return end;
off[end] = true;
add(end + 1);
idk++;
end--;
ans[iBlock] = ask(end);
}
if (end == iBlock)
{
if (ans[iBlock][0] + ans[iBlock][1] == 0)
return iBlock;
if (ans[iBlock][0] + ans[iBlock][1] != nonLollipop)
idk++;
done += idk;
continue;
}
while (ans[iBlock][0] > done)
{
std::vector<int> sspace;
for (int iBox = iBlock; iBox < end; iBox++)
if (!off[iBox])
sspace.emplace_back(iBox);
int pos = searchgood(sspace, nonLollipop);
if (pos != -1)
return pos;
done++;
}
done += idk;
}
return -1;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 2 |
Correct |
9 ms |
5140 KB |
Output is correct |
| 3 |
Correct |
11 ms |
5032 KB |
Output is correct |
| 4 |
Correct |
9 ms |
5032 KB |
Output is correct |
| 5 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 6 |
Correct |
10 ms |
5012 KB |
Output is correct |
| 7 |
Correct |
10 ms |
5036 KB |
Output is correct |
| 8 |
Correct |
9 ms |
5032 KB |
Output is correct |
| 9 |
Correct |
10 ms |
5016 KB |
Output is correct |
| 10 |
Correct |
10 ms |
5112 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
5032 KB |
Output is correct |
| 2 |
Correct |
11 ms |
5052 KB |
Output is correct |
| 3 |
Correct |
9 ms |
5036 KB |
Output is correct |
| 4 |
Correct |
11 ms |
5020 KB |
Output is correct |
| 5 |
Correct |
9 ms |
5048 KB |
Output is correct |
| 6 |
Correct |
11 ms |
5012 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5148 KB |
Output is correct |
| 8 |
Correct |
10 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 10 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 11 |
Correct |
10 ms |
5192 KB |
Output is correct |
| 12 |
Correct |
11 ms |
5024 KB |
Output is correct |
| 13 |
Correct |
11 ms |
5368 KB |
Output is correct |
| 14 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 15 |
Correct |
12 ms |
5076 KB |
Output is correct |
| 16 |
Correct |
28 ms |
5796 KB |
Output is correct |
| 17 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 18 |
Correct |
31 ms |
6000 KB |
Output is correct |
| 19 |
Correct |
12 ms |
5032 KB |
Output is correct |
| 20 |
Correct |
21 ms |
5152 KB |
Output is correct |
| 21 |
Correct |
27 ms |
5292 KB |
Output is correct |
| 22 |
Correct |
14 ms |
5156 KB |
Output is correct |
| 23 |
Correct |
10 ms |
5024 KB |
Output is correct |
| 24 |
Correct |
12 ms |
5032 KB |
Output is correct |
| 25 |
Correct |
21 ms |
5508 KB |
Output is correct |
| 26 |
Correct |
21 ms |
5488 KB |
Output is correct |
| 27 |
Correct |
11 ms |
5024 KB |
Output is correct |
| 28 |
Correct |
31 ms |
5868 KB |
Output is correct |
| 29 |
Correct |
27 ms |
5860 KB |
Output is correct |
| 30 |
Correct |
49 ms |
5944 KB |
Output is correct |
| 31 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 32 |
Correct |
10 ms |
5236 KB |
Output is correct |
| 33 |
Correct |
6 ms |
4904 KB |
Output is correct |
| 34 |
Correct |
16 ms |
5328 KB |
Output is correct |
| 35 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 36 |
Correct |
17 ms |
5240 KB |
Output is correct |
| 37 |
Correct |
9 ms |
5100 KB |
Output is correct |
| 38 |
Correct |
12 ms |
5012 KB |
Output is correct |
| 39 |
Correct |
26 ms |
5396 KB |
Output is correct |
| 40 |
Correct |
39 ms |
5944 KB |
Output is correct |
| 41 |
Correct |
29 ms |
5584 KB |
Output is correct |
| 42 |
Correct |
22 ms |
5580 KB |
Output is correct |
| 43 |
Correct |
20 ms |
5592 KB |
Output is correct |
| 44 |
Correct |
26 ms |
5400 KB |
Output is correct |
| 45 |
Correct |
16 ms |
5312 KB |
Output is correct |
| 46 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 47 |
Correct |
19 ms |
5444 KB |
Output is correct |
| 48 |
Correct |
27 ms |
5664 KB |
Output is correct |
| 49 |
Correct |
13 ms |
5120 KB |
Output is correct |
| 50 |
Correct |
30 ms |
6008 KB |
Output is correct |
| 51 |
Correct |
27 ms |
5396 KB |
Output is correct |
| 52 |
Correct |
9 ms |
5024 KB |
Output is correct |
| 53 |
Correct |
13 ms |
5112 KB |
Output is correct |
| 54 |
Correct |
18 ms |
5444 KB |
Output is correct |
| 55 |
Correct |
9 ms |
5032 KB |
Output is correct |
| 56 |
Correct |
31 ms |
6008 KB |
Output is correct |
| 57 |
Correct |
41 ms |
5716 KB |
Output is correct |
| 58 |
Correct |
32 ms |
5660 KB |
Output is correct |
| 59 |
Correct |
35 ms |
5544 KB |
Output is correct |
| 60 |
Correct |
23 ms |
5496 KB |
Output is correct |
| 61 |
Correct |
12 ms |
5152 KB |
Output is correct |
| 62 |
Correct |
9 ms |
5036 KB |
Output is correct |
| 63 |
Correct |
9 ms |
5116 KB |
Output is correct |
| 64 |
Correct |
9 ms |
5036 KB |
Output is correct |
| 65 |
Correct |
10 ms |
5024 KB |
Output is correct |
| 66 |
Correct |
11 ms |
5148 KB |
Output is correct |
| 67 |
Correct |
9 ms |
5032 KB |
Output is correct |
| 68 |
Correct |
11 ms |
5072 KB |
Output is correct |
| 69 |
Correct |
11 ms |
5028 KB |
Output is correct |
| 70 |
Correct |
14 ms |
5028 KB |
Output is correct |
| 71 |
Correct |
36 ms |
5964 KB |
Output is correct |
| 72 |
Correct |
11 ms |
5172 KB |
Output is correct |
| 73 |
Correct |
34 ms |
5964 KB |
Output is correct |
| 74 |
Correct |
34 ms |
5968 KB |
Output is correct |
| 75 |
Correct |
12 ms |
5032 KB |
Output is correct |
| 76 |
Correct |
38 ms |
5996 KB |
Output is correct |
| 77 |
Correct |
35 ms |
5916 KB |
Output is correct |
| 78 |
Correct |
11 ms |
5148 KB |
Output is correct |
| 79 |
Correct |
30 ms |
5884 KB |
Output is correct |
| 80 |
Correct |
33 ms |
5968 KB |
Output is correct |
| 81 |
Correct |
39 ms |
5932 KB |
Output is correct |
| 82 |
Correct |
31 ms |
5924 KB |
Output is correct |
| 83 |
Correct |
10 ms |
5016 KB |
Output is correct |
| 84 |
Correct |
36 ms |
5884 KB |
Output is correct |
| 85 |
Correct |
32 ms |
5920 KB |
Output is correct |
| 86 |
Correct |
12 ms |
5660 KB |
Output is correct |
| 87 |
Correct |
9 ms |
5044 KB |
Output is correct |
| 88 |
Correct |
18 ms |
5672 KB |
Output is correct |
| 89 |
Correct |
17 ms |
5676 KB |
Output is correct |
| 90 |
Correct |
9 ms |
5024 KB |
Output is correct |
| 91 |
Correct |
14 ms |
5528 KB |
Output is correct |
| 92 |
Correct |
18 ms |
5624 KB |
Output is correct |
| 93 |
Correct |
19 ms |
5924 KB |
Output is correct |
| 94 |
Correct |
14 ms |
5944 KB |
Output is correct |
| 95 |
Correct |
13 ms |
5960 KB |
Output is correct |
| 96 |
Correct |
19 ms |
5968 KB |
Output is correct |
| 97 |
Correct |
17 ms |
5920 KB |
Output is correct |
