답안 #683928

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
683928 2023-01-19T16:46:33 Z abc864197532 Monochrome Points (JOI20_monochrome) C++17
35 / 100
1901 ms 3424 KB
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define pii pair<int,int>
#define all(x) x.begin(), x.end()

int main() {
	srand(time(NULL));
	ios::sync_with_stdio(false), cin.tie(0);
	double T = clock();
	int n;
	string s;
	cin >> n >> s;
	vector <pii> a;
	for (int i = 0; i < n; ++i) {
		if (s[i] == s[i + n]) {
			a.emplace_back(i, s[i] == 'B' ? 1 : 0);
		}
	}
	int m = a.size();
	ll ans = 1ll << 60;
	if (!m) {
		cout << 1ll * n * (n - 1) / 2 << '\n';
		return 0;
	}
	while ((clock() - T) / CLOCKS_PER_SEC <= 1.9) {
		int rt = rand() % m;
		vector <pii> stk;
		ll cur = 0;
		for (int i = 0; i < m; ++i) {
			auto [x, id] = a[(i + rt) % m];
			if (!stk.empty() && stk.back().second != id) {
				int p = stk.back().first; stk.pop_back();
				int len = abs(p - x);
				cur += min(len, n - len);
			} else {
				stk.emplace_back(x, id);
			}
		}
		ans = min(ans, cur);
	}
	cout << 1ll * n * (n - 1) / 2 - ans << '\n';
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1901 ms 300 KB Output is correct
3 Correct 1901 ms 300 KB Output is correct
4 Correct 1900 ms 300 KB Output is correct
5 Correct 1900 ms 212 KB Output is correct
6 Correct 1900 ms 296 KB Output is correct
7 Correct 1900 ms 300 KB Output is correct
8 Correct 1901 ms 300 KB Output is correct
9 Correct 1900 ms 300 KB Output is correct
10 Correct 1900 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1900 ms 300 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1901 ms 300 KB Output is correct
3 Correct 1901 ms 300 KB Output is correct
4 Correct 1900 ms 300 KB Output is correct
5 Correct 1900 ms 212 KB Output is correct
6 Correct 1900 ms 296 KB Output is correct
7 Correct 1900 ms 300 KB Output is correct
8 Correct 1901 ms 300 KB Output is correct
9 Correct 1900 ms 300 KB Output is correct
10 Correct 1900 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1900 ms 300 KB Output is correct
14 Correct 1900 ms 304 KB Output is correct
15 Correct 1900 ms 308 KB Output is correct
16 Correct 1900 ms 304 KB Output is correct
17 Correct 1900 ms 304 KB Output is correct
18 Correct 1900 ms 300 KB Output is correct
19 Correct 1901 ms 308 KB Output is correct
20 Correct 1901 ms 300 KB Output is correct
21 Correct 1901 ms 304 KB Output is correct
22 Correct 1900 ms 320 KB Output is correct
23 Correct 1900 ms 304 KB Output is correct
24 Correct 1900 ms 308 KB Output is correct
25 Correct 1900 ms 304 KB Output is correct
26 Correct 1900 ms 300 KB Output is correct
27 Correct 1901 ms 296 KB Output is correct
28 Correct 1901 ms 300 KB Output is correct
29 Correct 1900 ms 300 KB Output is correct
30 Correct 1900 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1901 ms 304 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1901 ms 300 KB Output is correct
3 Correct 1901 ms 300 KB Output is correct
4 Correct 1900 ms 300 KB Output is correct
5 Correct 1900 ms 212 KB Output is correct
6 Correct 1900 ms 296 KB Output is correct
7 Correct 1900 ms 300 KB Output is correct
8 Correct 1901 ms 300 KB Output is correct
9 Correct 1900 ms 300 KB Output is correct
10 Correct 1900 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1900 ms 300 KB Output is correct
14 Correct 1900 ms 304 KB Output is correct
15 Correct 1900 ms 308 KB Output is correct
16 Correct 1900 ms 304 KB Output is correct
17 Correct 1900 ms 304 KB Output is correct
18 Correct 1900 ms 300 KB Output is correct
19 Correct 1901 ms 308 KB Output is correct
20 Correct 1901 ms 300 KB Output is correct
21 Correct 1901 ms 304 KB Output is correct
22 Correct 1900 ms 320 KB Output is correct
23 Correct 1900 ms 304 KB Output is correct
24 Correct 1900 ms 308 KB Output is correct
25 Correct 1900 ms 304 KB Output is correct
26 Correct 1900 ms 300 KB Output is correct
27 Correct 1901 ms 296 KB Output is correct
28 Correct 1901 ms 300 KB Output is correct
29 Correct 1900 ms 300 KB Output is correct
30 Correct 1900 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1901 ms 304 KB Output is correct
34 Correct 1900 ms 340 KB Output is correct
35 Correct 1901 ms 332 KB Output is correct
36 Correct 1901 ms 320 KB Output is correct
37 Correct 1901 ms 340 KB Output is correct
38 Correct 1900 ms 304 KB Output is correct
39 Correct 1900 ms 340 KB Output is correct
40 Correct 1900 ms 344 KB Output is correct
41 Correct 1900 ms 320 KB Output is correct
42 Correct 1901 ms 340 KB Output is correct
43 Correct 1901 ms 340 KB Output is correct
44 Correct 1900 ms 344 KB Output is correct
45 Correct 1900 ms 312 KB Output is correct
46 Correct 1900 ms 308 KB Output is correct
47 Correct 1900 ms 320 KB Output is correct
48 Correct 1900 ms 340 KB Output is correct
49 Correct 1900 ms 460 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1901 ms 340 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1901 ms 300 KB Output is correct
3 Correct 1901 ms 300 KB Output is correct
4 Correct 1900 ms 300 KB Output is correct
5 Correct 1900 ms 212 KB Output is correct
6 Correct 1900 ms 296 KB Output is correct
7 Correct 1900 ms 300 KB Output is correct
8 Correct 1901 ms 300 KB Output is correct
9 Correct 1900 ms 300 KB Output is correct
10 Correct 1900 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1900 ms 300 KB Output is correct
14 Correct 1900 ms 304 KB Output is correct
15 Correct 1900 ms 308 KB Output is correct
16 Correct 1900 ms 304 KB Output is correct
17 Correct 1900 ms 304 KB Output is correct
18 Correct 1900 ms 300 KB Output is correct
19 Correct 1901 ms 308 KB Output is correct
20 Correct 1901 ms 300 KB Output is correct
21 Correct 1901 ms 304 KB Output is correct
22 Correct 1900 ms 320 KB Output is correct
23 Correct 1900 ms 304 KB Output is correct
24 Correct 1900 ms 308 KB Output is correct
25 Correct 1900 ms 304 KB Output is correct
26 Correct 1900 ms 300 KB Output is correct
27 Correct 1901 ms 296 KB Output is correct
28 Correct 1901 ms 300 KB Output is correct
29 Correct 1900 ms 300 KB Output is correct
30 Correct 1900 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1901 ms 304 KB Output is correct
34 Correct 1900 ms 340 KB Output is correct
35 Correct 1901 ms 332 KB Output is correct
36 Correct 1901 ms 320 KB Output is correct
37 Correct 1901 ms 340 KB Output is correct
38 Correct 1900 ms 304 KB Output is correct
39 Correct 1900 ms 340 KB Output is correct
40 Correct 1900 ms 344 KB Output is correct
41 Correct 1900 ms 320 KB Output is correct
42 Correct 1901 ms 340 KB Output is correct
43 Correct 1901 ms 340 KB Output is correct
44 Correct 1900 ms 344 KB Output is correct
45 Correct 1900 ms 312 KB Output is correct
46 Correct 1900 ms 308 KB Output is correct
47 Correct 1900 ms 320 KB Output is correct
48 Correct 1900 ms 340 KB Output is correct
49 Correct 1900 ms 460 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1901 ms 340 KB Output is correct
53 Correct 1901 ms 2404 KB Output is correct
54 Correct 1901 ms 2404 KB Output is correct
55 Correct 1901 ms 2276 KB Output is correct
56 Correct 1901 ms 2276 KB Output is correct
57 Correct 1900 ms 1248 KB Output is correct
58 Incorrect 1901 ms 3424 KB Output isn't correct
59 Halted 0 ms 0 KB -