답안 #286885

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
286885	2020-08-31T06:18:18 Z	arnold518	JJOOII 2 (JOI20_ho_t2)	C++14	100 / 100	8 ms	2688 KB

ho_t2

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2e5;

int N, K;
char S[MAXN+10];
int P[MAXN+10], Q[MAXN+10];

int main()
{
	scanf("%d%d", &N, &K);
	scanf("%s", S+1);

	vector<int> V;
	P[0]=-1;
	for(int i=1; i<=N; i++)
	{
		if(S[i]=='J') V.push_back(i);
		if(V.size()<K) P[i]=-1;
		else P[i]=V[V.size()-K];
	}
	V.clear();

	Q[N+1]=-1;
	for(int i=N; i>=1; i--)
	{
		if(S[i]=='I') V.push_back(i);
		if(V.size()<K) Q[i]=-1;
		else Q[i]=V[V.size()-K];
	}
	V.clear();

	int ans=2e9;
	for(int i=1; i<=N; i++)
	{
		if(S[i]=='O') V.push_back(i);
		if(V.size()<K) continue;
		else
		{
			int p=V[V.size()-K], q=i;
			int l=P[p-1], r=Q[q+1];
			if(l==-1 || r==-1) continue;
			ans=min(ans, r-l+1);
		}
	}

	if(ans==2e9) return !printf("-1\n");
	printf("%d\n", ans-3*K);
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:24:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |   if(V.size()<K) P[i]=-1;
      |      ~~~~~~~~^~
ho_t2.cpp:33:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |   if(V.size()<K) Q[i]=-1;
      |      ~~~~~~~~^~
ho_t2.cpp:42:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |   if(V.size()<K) continue;
      |      ~~~~~~~~^~
ho_t2.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   16 |  scanf("%d%d", &N, &K);
      |  ~~~~~^~~~~~~~~~~~~~~~
ho_t2.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |  scanf("%s", S+1);
      |  ~~~~~^~~~~~~~~~~

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	256 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	0 ms	384 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	256 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	0 ms	384 KB	Output is correct
15	Correct	1 ms	416 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	1 ms	384 KB	Output is correct
32	Correct	1 ms	384 KB	Output is correct
33	Correct	1 ms	384 KB	Output is correct
34	Correct	1 ms	384 KB	Output is correct
35	Correct	0 ms	384 KB	Output is correct

Subtask #3
87.0 / 87.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	256 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	0 ms	384 KB	Output is correct
15	Correct	1 ms	416 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	1 ms	384 KB	Output is correct
32	Correct	1 ms	384 KB	Output is correct
33	Correct	1 ms	384 KB	Output is correct
34	Correct	1 ms	384 KB	Output is correct
35	Correct	0 ms	384 KB	Output is correct
36	Correct	7 ms	2684 KB	Output is correct
37	Correct	7 ms	2680 KB	Output is correct
38	Correct	7 ms	2680 KB	Output is correct
39	Correct	7 ms	2680 KB	Output is correct
40	Correct	7 ms	2680 KB	Output is correct
41	Correct	8 ms	2680 KB	Output is correct
42	Correct	7 ms	2680 KB	Output is correct
43	Correct	5 ms	1788 KB	Output is correct
44	Correct	5 ms	2172 KB	Output is correct
45	Correct	7 ms	2680 KB	Output is correct
46	Correct	7 ms	2680 KB	Output is correct
47	Correct	7 ms	2680 KB	Output is correct
48	Correct	7 ms	2680 KB	Output is correct
49	Correct	5 ms	1916 KB	Output is correct
50	Correct	7 ms	2680 KB	Output is correct
51	Correct	7 ms	2688 KB	Output is correct
52	Correct	7 ms	2556 KB	Output is correct
53	Correct	7 ms	2680 KB	Output is correct
54	Correct	5 ms	2680 KB	Output is correct
55	Correct	5 ms	2680 KB	Output is correct
56	Correct	5 ms	2680 KB	Output is correct

답안 #286885

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