Submission #623129

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
623129	2022-08-05T08:39:54 Z	S2speed	Monochrome Points (JOI20_monochrome)	C++17	35 / 100	2000 ms	7892 KB

monochrome

#include<bits/stdc++.h>

using namespace std;

#pragma GCC optimize ("Ofast")

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

const ll maxn = 4e5 + 17;

string s;
vector<ll> a , b;
ll ps[maxn];

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	ll n;
	cin>>n>>s;
    for(ll i = 0 ; i < (n << 1) ; i++){
		if(s[i] == 'B'){
			a.push_back(i);
		} else {
			b.push_back(i);
		}
	}
	ps[0] = (s[0] == 'B');
	for(ll i = 1 ; i < (n << 1) ; i++){
		ps[i] = ps[i - 1] + (s[i] == 'B');
	}
	ll res = 0;
	for(ll k = 0 ; k < n ; k++){
		ll cur = 0;
		for(ll t = 0 ; t < n ; t++){
			ll i = a[t] , j = b[(t + k) % n];
			if(i < j){
				ll h1 = ps[j] - ps[i] , h0 = j - i - 1 - h1 , b0 = n - 1 - h0 , h = max(0ll , h1 - b0);
				cur += j - i - 1 - (h << 1);
			} else {
				ll d = (n << 1) - (i - j + 1) , h1 = n - ps[i] + ps[j] , h0 = d - h1 , b0 = n - 1 - h0 , h = max(0ll , h1 - b0);
				cur += d - (h << 1);
			}
		}
		cur >>= 1;
		res = max(res , cur);
	}
	cout<<res<<'\n';
	return 0;
}

Subtask #1
4.0 / 4.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	0 ms	212 KB	Output is correct

Subtask #2
21.0 / 21.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	0 ms	212 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	332 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	336 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	336 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	340 KB	Output is correct

Subtask #3
10.0 / 10.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	0 ms	212 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	332 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	336 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	336 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	340 KB	Output is correct
34	Correct	20 ms	416 KB	Output is correct
35	Correct	19 ms	428 KB	Output is correct
36	Correct	18 ms	340 KB	Output is correct
37	Correct	17 ms	340 KB	Output is correct
38	Correct	16 ms	424 KB	Output is correct
39	Correct	19 ms	340 KB	Output is correct
40	Correct	17 ms	340 KB	Output is correct
41	Correct	14 ms	340 KB	Output is correct
42	Correct	18 ms	332 KB	Output is correct
43	Correct	18 ms	340 KB	Output is correct
44	Correct	16 ms	340 KB	Output is correct
45	Correct	17 ms	340 KB	Output is correct
46	Correct	18 ms	428 KB	Output is correct
47	Correct	18 ms	340 KB	Output is correct
48	Correct	19 ms	436 KB	Output is correct
49	Correct	16 ms	396 KB	Output is correct
50	Correct	19 ms	420 KB	Output is correct
51	Correct	23 ms	416 KB	Output is correct
52	Correct	19 ms	436 KB	Output is correct

Subtask #4
0.0 / 65.0

#	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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	0 ms	212 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	332 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	336 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	336 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	340 KB	Output is correct
34	Correct	20 ms	416 KB	Output is correct
35	Correct	19 ms	428 KB	Output is correct
36	Correct	18 ms	340 KB	Output is correct
37	Correct	17 ms	340 KB	Output is correct
38	Correct	16 ms	424 KB	Output is correct
39	Correct	19 ms	340 KB	Output is correct
40	Correct	17 ms	340 KB	Output is correct
41	Correct	14 ms	340 KB	Output is correct
42	Correct	18 ms	332 KB	Output is correct
43	Correct	18 ms	340 KB	Output is correct
44	Correct	16 ms	340 KB	Output is correct
45	Correct	17 ms	340 KB	Output is correct
46	Correct	18 ms	428 KB	Output is correct
47	Correct	18 ms	340 KB	Output is correct
48	Correct	19 ms	436 KB	Output is correct
49	Correct	16 ms	396 KB	Output is correct
50	Correct	19 ms	420 KB	Output is correct
51	Correct	23 ms	416 KB	Output is correct
52	Correct	19 ms	436 KB	Output is correct
53	Execution timed out	2055 ms	7892 KB	Time limit exceeded
54	Halted	0 ms	0 KB	-

Submission #623129

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 21.0 / 21.0

Subtask #3 10.0 / 10.0

Subtask #4 0.0 / 65.0

Subtask #1
4.0 / 4.0

Subtask #2
21.0 / 21.0

Subtask #3
10.0 / 10.0

Subtask #4
0.0 / 65.0