Submission #834223

# Submission time Handle Problem Language Result Execution time Memory
834223 2023-08-22T12:02:29 Z vjudge1 JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
27 ms 3276 KB
#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;
}
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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