답안 #834223

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
834223	2023-08-22T12:02:29 Z	vjudge1	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	27 ms	3276 KB

ho_t2

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

int N, K, ans=1e9;
string S, T="JOI";
int psum[3][200100];

int binser(int start, int id) {
	int L=start, R=N;
	int res = 0;
	while(L<=R) {
		int mid = (L+R)/2;
		if (psum[id][mid]-psum[id][start-1] >= K) {
			res = mid;
			R = mid-1;
		} else {
			L = mid+1;
		}
	}
	return res;
}

int main () {
	cin >> N >> K;
	cin >> S;
	S = "."+S;
	for(int i=1; i<=N; i++) {
		for(int j=0; j<=2; j++) {
			psum[j][i] = psum[j][i-1] + (S[i]==T[j]);
		}
	}
	for(int i=1; i<=N; i++) {
		int x = i-1;
		bool valid = true;
		for(int j=0; j<=2; j++) {
			x = binser(x+1,j);
			if (x==0) {
				valid = false;
				break;
			}
		}
		if (!valid) continue;
		ans = min(ans, x-i+1-3*K);
	}
	if (ans==1e9) ans = -1;
	cout << ans << endl;
}

Subtask #1

1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct

Subtask #2

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	304 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	308 KB	Output is correct
30	Correct	1 ms	304 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct

Subtask #3

87.0 / 87.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	304 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	308 KB	Output is correct
30	Correct	1 ms	304 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	19 ms	2988 KB	Output is correct
37	Correct	21 ms	3180 KB	Output is correct
38	Correct	21 ms	3104 KB	Output is correct
39	Correct	25 ms	3112 KB	Output is correct
40	Correct	18 ms	3084 KB	Output is correct
41	Correct	23 ms	3104 KB	Output is correct
42	Correct	27 ms	3104 KB	Output is correct
43	Correct	10 ms	2024 KB	Output is correct
44	Correct	12 ms	2508 KB	Output is correct
45	Correct	16 ms	3080 KB	Output is correct
46	Correct	17 ms	3276 KB	Output is correct
47	Correct	16 ms	3104 KB	Output is correct
48	Correct	16 ms	3104 KB	Output is correct
49	Correct	11 ms	2280 KB	Output is correct
50	Correct	16 ms	3084 KB	Output is correct
51	Correct	16 ms	3176 KB	Output is correct
52	Correct	9 ms	2984 KB	Output is correct
53	Correct	9 ms	3104 KB	Output is correct
54	Correct	13 ms	3180 KB	Output is correct
55	Correct	10 ms	3088 KB	Output is correct
56	Correct	8 ms	3180 KB	Output is correct