답안 #293120

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
293120	2020-09-07T16:32:50 Z	Berted	Monochrome Points (JOI20_monochrome)	C++14	100 / 100	68 ms	1944 KB

monochrome

#include <iostream>
#include <vector>
using namespace std;
int n; string s;
vector<int> C[2];
long long ans = 0;
bool matchWith[100001];

long long solve(int x)
{
	long long temp = 0;
	for (int i = 0; i < C[0].size(); i++)
	{
		temp += min(abs(C[1][(i + x) % C[1].size()] - C[0][i]), n - abs(C[1][(i + x) % C[1].size()] - C[0][i]));		
	}
	return temp;
}

long long binser(int L, int R)
{
	while (L < R)
	{
		int M = L + R >> 1;
		if (solve(M) < solve(M + 1)) {R = M;}
		else {L = M + 1;}
	}

	long long ret = 1e18;
	for (int i = max(0, L - 5); i < min(L + 5, (int)C[0].size()); i++) {ret = min(ret, solve(i));}
	return ret;
}

int main()
{
	cin >> n >> s;
	for (int i = 0; i < n; i++)
	{
		if (s[i] == s[i + n]) {C[s[i] == 'W'].push_back(i);}
	}
	ans = (long long)n * (n - 1) / 2;
	
	if (C[0].size())
	{
		long long res = 1e18;
		res = min(binser(0, (int)C[0].size() / 2 - 1), binser((int)C[0].size() / 2, (int)C[0].size() - 2));
		ans -= res;
	}

	cout << ans << "\n";
	
	return 0;
}

Compilation message

monochrome.cpp: In function 'long long int solve(int)':
monochrome.cpp:12:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |  for (int i = 0; i < C[0].size(); i++)
      |                  ~~^~~~~~~~~~~~~
monochrome.cpp: In function 'long long int binser(int, int)':
monochrome.cpp:23:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |   int M = L + R >> 1;
      |           ~~^~~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	256 KB	Output is correct
9	Correct	0 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	256 KB	Output is correct
9	Correct	0 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	0 ms	256 KB	Output is correct
17	Correct	0 ms	256 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct
19	Correct	1 ms	256 KB	Output is correct
20	Correct	1 ms	256 KB	Output is correct
21	Correct	1 ms	256 KB	Output is correct
22	Correct	0 ms	256 KB	Output is correct
23	Correct	0 ms	256 KB	Output is correct
24	Correct	0 ms	256 KB	Output is correct
25	Correct	0 ms	256 KB	Output is correct
26	Correct	0 ms	256 KB	Output is correct
27	Correct	0 ms	256 KB	Output is correct
28	Correct	1 ms	256 KB	Output is correct
29	Correct	1 ms	308 KB	Output is correct
30	Correct	0 ms	256 KB	Output is correct
31	Correct	0 ms	256 KB	Output is correct
32	Correct	1 ms	256 KB	Output is correct
33	Correct	1 ms	256 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	256 KB	Output is correct
9	Correct	0 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	0 ms	256 KB	Output is correct
17	Correct	0 ms	256 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct
19	Correct	1 ms	256 KB	Output is correct
20	Correct	1 ms	256 KB	Output is correct
21	Correct	1 ms	256 KB	Output is correct
22	Correct	0 ms	256 KB	Output is correct
23	Correct	0 ms	256 KB	Output is correct
24	Correct	0 ms	256 KB	Output is correct
25	Correct	0 ms	256 KB	Output is correct
26	Correct	0 ms	256 KB	Output is correct
27	Correct	0 ms	256 KB	Output is correct
28	Correct	1 ms	256 KB	Output is correct
29	Correct	1 ms	308 KB	Output is correct
30	Correct	0 ms	256 KB	Output is correct
31	Correct	0 ms	256 KB	Output is correct
32	Correct	1 ms	256 KB	Output is correct
33	Correct	1 ms	256 KB	Output is correct
34	Correct	1 ms	384 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	1 ms	384 KB	Output is correct
37	Correct	1 ms	256 KB	Output is correct
38	Correct	1 ms	256 KB	Output is correct
39	Correct	1 ms	384 KB	Output is correct
40	Correct	1 ms	384 KB	Output is correct
41	Correct	1 ms	256 KB	Output is correct
42	Correct	1 ms	384 KB	Output is correct
43	Correct	1 ms	384 KB	Output is correct
44	Correct	1 ms	384 KB	Output is correct
45	Correct	1 ms	256 KB	Output is correct
46	Correct	1 ms	384 KB	Output is correct
47	Correct	1 ms	256 KB	Output is correct
48	Correct	1 ms	384 KB	Output is correct
49	Correct	1 ms	384 KB	Output is correct
50	Correct	1 ms	384 KB	Output is correct
51	Correct	1 ms	384 KB	Output is correct
52	Correct	1 ms	384 KB	Output is correct

Subtask #4
65.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	0 ms	256 KB	Output is correct
8	Correct	0 ms	256 KB	Output is correct
9	Correct	0 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	0 ms	256 KB	Output is correct
17	Correct	0 ms	256 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct
19	Correct	1 ms	256 KB	Output is correct
20	Correct	1 ms	256 KB	Output is correct
21	Correct	1 ms	256 KB	Output is correct
22	Correct	0 ms	256 KB	Output is correct
23	Correct	0 ms	256 KB	Output is correct
24	Correct	0 ms	256 KB	Output is correct
25	Correct	0 ms	256 KB	Output is correct
26	Correct	0 ms	256 KB	Output is correct
27	Correct	0 ms	256 KB	Output is correct
28	Correct	1 ms	256 KB	Output is correct
29	Correct	1 ms	308 KB	Output is correct
30	Correct	0 ms	256 KB	Output is correct
31	Correct	0 ms	256 KB	Output is correct
32	Correct	1 ms	256 KB	Output is correct
33	Correct	1 ms	256 KB	Output is correct
34	Correct	1 ms	384 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	1 ms	384 KB	Output is correct
37	Correct	1 ms	256 KB	Output is correct
38	Correct	1 ms	256 KB	Output is correct
39	Correct	1 ms	384 KB	Output is correct
40	Correct	1 ms	384 KB	Output is correct
41	Correct	1 ms	256 KB	Output is correct
42	Correct	1 ms	384 KB	Output is correct
43	Correct	1 ms	384 KB	Output is correct
44	Correct	1 ms	384 KB	Output is correct
45	Correct	1 ms	256 KB	Output is correct
46	Correct	1 ms	384 KB	Output is correct
47	Correct	1 ms	256 KB	Output is correct
48	Correct	1 ms	384 KB	Output is correct
49	Correct	1 ms	384 KB	Output is correct
50	Correct	1 ms	384 KB	Output is correct
51	Correct	1 ms	384 KB	Output is correct
52	Correct	1 ms	384 KB	Output is correct
53	Correct	42 ms	1308 KB	Output is correct
54	Correct	44 ms	1436 KB	Output is correct
55	Correct	42 ms	1308 KB	Output is correct
56	Correct	40 ms	1308 KB	Output is correct
57	Correct	19 ms	912 KB	Output is correct
58	Correct	52 ms	1816 KB	Output is correct
59	Correct	65 ms	1908 KB	Output is correct
60	Correct	55 ms	1308 KB	Output is correct
61	Correct	39 ms	1172 KB	Output is correct
62	Correct	46 ms	1488 KB	Output is correct
63	Correct	40 ms	1308 KB	Output is correct
64	Correct	34 ms	1180 KB	Output is correct
65	Correct	24 ms	1056 KB	Output is correct
66	Correct	22 ms	912 KB	Output is correct
67	Correct	24 ms	916 KB	Output is correct
68	Correct	22 ms	912 KB	Output is correct
69	Correct	47 ms	1428 KB	Output is correct
70	Correct	31 ms	1052 KB	Output is correct
71	Correct	20 ms	912 KB	Output is correct
72	Correct	20 ms	912 KB	Output is correct
73	Correct	68 ms	1944 KB	Output is correct

답안 #293120

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 21.0 / 21.0

Subtask #3 10.0 / 10.0

Subtask #4 65.0 / 65.0

Subtask #1
4.0 / 4.0

Subtask #2
21.0 / 21.0

Subtask #3
10.0 / 10.0

Subtask #4
65.0 / 65.0