Submission #867640

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
867640	2023-10-29T03:56:26 Z	MongHwa	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	7 ms	3048 KB

ho_t2

#include <iostream>
#include <queue>
#include <deque>
using namespace std;

#define INF 0x7f7f7f7f

int jpos[200001], ipos[200001];
queue<int> qj, qi;
deque<int> dq;

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	int n, k; string s;
	cin >> n >> k >> s;

	fill(jpos, jpos+n, -1);
	fill(ipos, ipos+n, -1);

	for(int i = 0; i < n; i++)
	{
		if(s[i] == 'J')
		{
			qj.push(i);
			if(qj.size() > k)
				qj.pop();
		}
		else if(s[i] == 'O')
			if(qj.size() == k)
				jpos[i] = qj.front();
	}

	for(int i = n-1; i >= 0; i--)
	{
		if(s[i] == 'I')
		{
			qi.push(i);
			if(qi.size() > k)
				qi.pop();
		}
		else if(s[i] == 'O')
			if(qi.size() == k)
				ipos[i] = qi.front();
	}

	int ans = INF;
	for(int i = 0; i < n; i++)
		if(s[i] == 'O')
		{
			dq.push_back(i);
			if(dq.size() == k)
			{
				if(ipos[dq.back()] != -1 && jpos[dq.front()] != -1)
					ans = min(ans, ipos[dq.back()]-jpos[dq.front()]+1);
				dq.pop_front();
			}
		}

	cout << (ans == INF ? -1 : ans-k*3) << '\n';
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:28:17: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |    if(qj.size() > k)
      |       ~~~~~~~~~~^~~
ho_t2.cpp:32:17: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |    if(qj.size() == k)
      |       ~~~~~~~~~~^~~~
ho_t2.cpp:41:17: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   41 |    if(qi.size() > k)
      |       ~~~~~~~~~~^~~
ho_t2.cpp:45:17: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   45 |    if(qi.size() == k)
      |       ~~~~~~~~~~^~~~
ho_t2.cpp:54:17: warning: comparison of integer expressions of different signedness: 'std::deque<int, std::allocator<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   54 |    if(dq.size() == k)
      |       ~~~~~~~~~~^~~~

Subtask #1
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	472 KB	Output is correct
7	Correct	0 ms	468 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	472 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	472 KB	Output is correct
7	Correct	0 ms	468 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	472 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	344 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	472 KB	Output is correct
22	Correct	0 ms	468 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	352 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	344 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct

Subtask #3
87.0 / 87.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	472 KB	Output is correct
7	Correct	0 ms	468 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	472 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	344 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	472 KB	Output is correct
22	Correct	0 ms	468 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	352 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	344 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Correct	5 ms	2280 KB	Output is correct
37	Correct	6 ms	2532 KB	Output is correct
38	Correct	6 ms	2536 KB	Output is correct
39	Correct	6 ms	2448 KB	Output is correct
40	Correct	6 ms	2532 KB	Output is correct
41	Correct	6 ms	2788 KB	Output is correct
42	Correct	6 ms	2540 KB	Output is correct
43	Correct	4 ms	1632 KB	Output is correct
44	Correct	5 ms	2028 KB	Output is correct
45	Correct	7 ms	2640 KB	Output is correct
46	Correct	6 ms	2780 KB	Output is correct
47	Correct	6 ms	2600 KB	Output is correct
48	Correct	6 ms	2572 KB	Output is correct
49	Correct	4 ms	1764 KB	Output is correct
50	Correct	6 ms	2536 KB	Output is correct
51	Correct	6 ms	2532 KB	Output is correct
52	Correct	6 ms	3048 KB	Output is correct
53	Correct	6 ms	3048 KB	Output is correct
54	Correct	3 ms	2412 KB	Output is correct
55	Correct	3 ms	2788 KB	Output is correct
56	Correct	3 ms	3044 KB	Output is correct

Submission #867640

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 12.0 / 12.0

Subtask #3 87.0 / 87.0

Subtask #1
1.0 / 1.0

Subtask #2
12.0 / 12.0

Subtask #3
87.0 / 87.0