Submission #562534

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
562534	2022-05-14T14:34:49 Z	dattranxxx	JJOOII 2 (JOI20_ho_t2)	C++11	100 / 100	32 ms	2868 KB

ho_t2

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
void file() {
	const string FILE_NAME = "FILE_NAME";
	freopen((FILE_NAME + ".inp").c_str(), "r", stdin);
	freopen((FILE_NAME + ".out").c_str(), "w", stdout);
}
const int N = 2e5 + 5;
int a[N], J[N], O[N], I[N];
int n, K;
int check(int l, int r) {
	/* 
	doan (l, r] thoa man <=> ton tai i, j, k thoa man
	l < i < j < r
	J[i] >= K + J[l]
	O[j] >= K + O[i]
	I[r] >= K + I[j]
	*/
	if (r - l < K * 3) return 0;
	int i = lower_bound(J + l + 1, J + n, K + J[l]) - J;
	if (i >= r) return 0;
	int j = lower_bound(O + i + 1, O + n, K + O[i]) - O;
	if (j >= r) return 0;
	return I[r] >= K + I[j];
}
int main() {
	cin.tie(0)->sync_with_stdio(0); cout.tie(0);
	cin >> n >> K;
	char c;
	for (int i = 1; i <= n; ++i) 
		cin >> c,
		J[i] = J[i-1] + (c == 'J'),
		O[i] = O[i-1] + (c == 'O'),
		I[i] = I[i-1] + (c == 'I');
	
	int res = -1;
	for (int l = 0, r = 1; l < n; ++l) {
		// (l, r]
		while (r <= n && !check(l, r)) r++;
		if (r == n + 1) break;
		res = res == -1 ? r - l - K * 3 : min(res, r - l - K * 3);
	}
	cout << res;
	return 0;
}

Compilation message

ho_t2.cpp: In function 'void file()':
ho_t2.cpp:6:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |  freopen((FILE_NAME + ".inp").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ho_t2.cpp:7:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |  freopen((FILE_NAME + ".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 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	324 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	328 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	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 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	324 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	324 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 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	324 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	328 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	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 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	324 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	27 ms	2644 KB	Output is correct
37	Correct	27 ms	2840 KB	Output is correct
38	Correct	27 ms	2772 KB	Output is correct
39	Correct	29 ms	2772 KB	Output is correct
40	Correct	14 ms	2772 KB	Output is correct
41	Correct	24 ms	2852 KB	Output is correct
42	Correct	32 ms	2804 KB	Output is correct
43	Correct	8 ms	1920 KB	Output is correct
44	Correct	8 ms	2208 KB	Output is correct
45	Correct	10 ms	2848 KB	Output is correct
46	Correct	9 ms	2772 KB	Output is correct
47	Correct	10 ms	2808 KB	Output is correct
48	Correct	11 ms	2772 KB	Output is correct
49	Correct	7 ms	1992 KB	Output is correct
50	Correct	11 ms	2868 KB	Output is correct
51	Correct	12 ms	2772 KB	Output is correct
52	Correct	6 ms	2772 KB	Output is correct
53	Correct	6 ms	2772 KB	Output is correct
54	Correct	17 ms	2800 KB	Output is correct
55	Correct	9 ms	2772 KB	Output is correct
56	Correct	5 ms	2800 KB	Output is correct

Submission #562534

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