Submission #149261

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
149261	2019-09-01T06:05:01 Z	bitKOIn(#3612, gs15120, phsongys)	Crosses on the Grid (FXCUP4_cross)	C++17	100 / 100	200 ms	7656 KB

cross

#include <vector>
#include <algorithm>
#include <utility>
#include <cstdio>

int st[524288];

long long SelectCross(int K, std::vector<int> I, std::vector<int> O) {
	int N = I.size();
	int NN = 1;
	for (int t = N - 1; t; t >>= 1) NN <<= 1;
	std::vector<std::pair<int, int>> T;
	std::vector<int> CC(O);
	T.reserve(N);
	for (int i = 0; i < N; ++i) T.push_back({-I[i], O[i]});
	std::sort(T.begin(), T.end());
	std::sort(CC.begin(), CC.end());
	CC.erase(std::unique(CC.begin(), CC.end()), CC.end());
	long long ans = 0;

	for (int i = 0; i < N; ++i) {
		int ii = std::lower_bound(CC.begin(), CC.end(), T[i].second) - CC.begin();
		++st[NN + ii];
		for (int p = NN + ii; (p >>= 1); ) st[p] = st[p << 1] + st[p << 1 | 1];
		if (i >= K - 1) {
			int rem = i - K + 1;
			int p = 1;
			for (; p < NN; )
			{
				if (st[p << 1] <= rem) rem -= st[p << 1], p = p << 1 | 1;
				else p <<= 1;
			}
			if (st[p] <= rem) ++p;
			long long ov = CC[p - NN];
			long long dv = ov + T[i].first;
			ans = std::max(ans, ov * ov - dv * dv);
		}
	}
	return ans;
}

Subtask #1

8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	472 KB	Output is correct
4	Correct	6 ms	384 KB	Output is correct
5	Correct	15 ms	768 KB	Output is correct
6	Correct	185 ms	7656 KB	Output is correct
7	Correct	196 ms	7528 KB	Output is correct
8	Correct	200 ms	7636 KB	Output is correct

Subtask #2

55.0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	472 KB	Output is correct
4	Correct	6 ms	384 KB	Output is correct
5	Correct	15 ms	768 KB	Output is correct
6	Correct	185 ms	7656 KB	Output is correct
7	Correct	196 ms	7528 KB	Output is correct
8	Correct	200 ms	7636 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	6 ms	384 KB	Output is correct
11	Correct	6 ms	384 KB	Output is correct
12	Correct	16 ms	896 KB	Output is correct
13	Correct	93 ms	4100 KB	Output is correct
14	Correct	185 ms	7624 KB	Output is correct
15	Correct	187 ms	7532 KB	Output is correct
16	Correct	189 ms	7608 KB	Output is correct

Subtask #3

37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	472 KB	Output is correct
4	Correct	6 ms	384 KB	Output is correct
5	Correct	15 ms	768 KB	Output is correct
6	Correct	185 ms	7656 KB	Output is correct
7	Correct	196 ms	7528 KB	Output is correct
8	Correct	200 ms	7636 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	6 ms	384 KB	Output is correct
11	Correct	6 ms	384 KB	Output is correct
12	Correct	16 ms	896 KB	Output is correct
13	Correct	93 ms	4100 KB	Output is correct
14	Correct	185 ms	7624 KB	Output is correct
15	Correct	187 ms	7532 KB	Output is correct
16	Correct	189 ms	7608 KB	Output is correct
17	Correct	5 ms	256 KB	Output is correct
18	Correct	7 ms	384 KB	Output is correct
19	Correct	15 ms	896 KB	Output is correct
20	Correct	89 ms	4080 KB	Output is correct
21	Correct	144 ms	6124 KB	Output is correct
22	Correct	178 ms	7532 KB	Output is correct
23	Correct	178 ms	7556 KB	Output is correct
24	Correct	179 ms	7656 KB	Output is correct
25	Correct	178 ms	7656 KB	Output is correct
26	Correct	168 ms	7524 KB	Output is correct