Submission #341439

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
341439	2020-12-29T17:33:00 Z	ryansee	Monochrome Points (JOI20_monochrome)	C++14	35 / 100	2000 ms	3328 KB

monochrome

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

#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define f first
#define s second
#define cbr cerr<<"hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ll(x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x,y) (lower_bound(all(x),y)-x.begin())
#define ubd(x,y) (upper_bound(all(x),y)-x.begin())
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline long long rand(long long x, long long y) { return rng() % (y+1-x) + x; } //inclusivesss
string inline to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){ return a==0?llabs(b):gcd(b%a,a); }

using ll=long long; 
using ld=long double;
#define FOR(i,s,e) for(ll i=s;i<=ll(e);++i)
#define DEC(i,s,e) for(ll i=s;i>=ll(e);--i)
using pi=pair<ll,ll>; using spi=pair<ll,pi>; using dpi=pair<pi,pi>; 

long long LLINF = 1e18;
int INF = 1e9+1e6;
#define MAXN (400006)
ll n, ans;
string A, tmp;
deque<ll> B, W;
ll lol() {
	ll ans = 0;
	FOR(i,0,n-1) if(i < n / 2) {
		if(A[i]=='B') B.eb(i); else W.eb(i);
	} else {
		if(A[i] == 'W') {
			ll minus = lbd(W, B[0]);
			B.pop_front();
			ans += siz(B) + siz(W) - minus;
		} else {
			ll minus = lbd(B, W[0]);
			W.pop_front();
			ans += siz(B) + siz(W) - minus;
		}
	}
	assert(B.empty() && W.empty());
	return ans;
}
int main() {
	FAST
	cin>>n>>A; n *= 2;
	tmp.resize(n);
	FOR(i,0,n-1) {
		ans = max(ans, lol());
		FOR(i,0,n-1) tmp[i] = A[(i-1+n)%n];
		A = tmp;
	}
	cout<<ans<<'\n';
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct

Subtask #2
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	10 ms	364 KB	Output is correct
15	Correct	10 ms	384 KB	Output is correct
16	Correct	11 ms	364 KB	Output is correct
17	Correct	12 ms	364 KB	Output is correct
18	Correct	6 ms	384 KB	Output is correct
19	Correct	7 ms	364 KB	Output is correct
20	Correct	7 ms	364 KB	Output is correct
21	Correct	7 ms	364 KB	Output is correct
22	Correct	7 ms	364 KB	Output is correct
23	Correct	4 ms	364 KB	Output is correct
24	Correct	6 ms	364 KB	Output is correct
25	Correct	6 ms	384 KB	Output is correct
26	Correct	7 ms	364 KB	Output is correct
27	Correct	7 ms	364 KB	Output is correct
28	Correct	7 ms	364 KB	Output is correct
29	Correct	5 ms	364 KB	Output is correct
30	Correct	5 ms	364 KB	Output is correct
31	Correct	6 ms	364 KB	Output is correct
32	Correct	6 ms	364 KB	Output is correct
33	Correct	7 ms	364 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	10 ms	364 KB	Output is correct
15	Correct	10 ms	384 KB	Output is correct
16	Correct	11 ms	364 KB	Output is correct
17	Correct	12 ms	364 KB	Output is correct
18	Correct	6 ms	384 KB	Output is correct
19	Correct	7 ms	364 KB	Output is correct
20	Correct	7 ms	364 KB	Output is correct
21	Correct	7 ms	364 KB	Output is correct
22	Correct	7 ms	364 KB	Output is correct
23	Correct	4 ms	364 KB	Output is correct
24	Correct	6 ms	364 KB	Output is correct
25	Correct	6 ms	384 KB	Output is correct
26	Correct	7 ms	364 KB	Output is correct
27	Correct	7 ms	364 KB	Output is correct
28	Correct	7 ms	364 KB	Output is correct
29	Correct	5 ms	364 KB	Output is correct
30	Correct	5 ms	364 KB	Output is correct
31	Correct	6 ms	364 KB	Output is correct
32	Correct	6 ms	364 KB	Output is correct
33	Correct	7 ms	364 KB	Output is correct
34	Correct	525 ms	440 KB	Output is correct
35	Correct	535 ms	492 KB	Output is correct
36	Correct	505 ms	492 KB	Output is correct
37	Correct	501 ms	364 KB	Output is correct
38	Correct	278 ms	364 KB	Output is correct
39	Correct	340 ms	364 KB	Output is correct
40	Correct	318 ms	492 KB	Output is correct
41	Correct	323 ms	492 KB	Output is correct
42	Correct	504 ms	492 KB	Output is correct
43	Correct	395 ms	492 KB	Output is correct
44	Correct	375 ms	436 KB	Output is correct
45	Correct	308 ms	492 KB	Output is correct
46	Correct	325 ms	492 KB	Output is correct
47	Correct	337 ms	364 KB	Output is correct
48	Correct	355 ms	440 KB	Output is correct
49	Correct	291 ms	364 KB	Output is correct
50	Correct	273 ms	492 KB	Output is correct
51	Correct	272 ms	492 KB	Output is correct
52	Correct	354 ms	492 KB	Output is correct

Subtask #4
0.0 / 65.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	10 ms	364 KB	Output is correct
15	Correct	10 ms	384 KB	Output is correct
16	Correct	11 ms	364 KB	Output is correct
17	Correct	12 ms	364 KB	Output is correct
18	Correct	6 ms	384 KB	Output is correct
19	Correct	7 ms	364 KB	Output is correct
20	Correct	7 ms	364 KB	Output is correct
21	Correct	7 ms	364 KB	Output is correct
22	Correct	7 ms	364 KB	Output is correct
23	Correct	4 ms	364 KB	Output is correct
24	Correct	6 ms	364 KB	Output is correct
25	Correct	6 ms	384 KB	Output is correct
26	Correct	7 ms	364 KB	Output is correct
27	Correct	7 ms	364 KB	Output is correct
28	Correct	7 ms	364 KB	Output is correct
29	Correct	5 ms	364 KB	Output is correct
30	Correct	5 ms	364 KB	Output is correct
31	Correct	6 ms	364 KB	Output is correct
32	Correct	6 ms	364 KB	Output is correct
33	Correct	7 ms	364 KB	Output is correct
34	Correct	525 ms	440 KB	Output is correct
35	Correct	535 ms	492 KB	Output is correct
36	Correct	505 ms	492 KB	Output is correct
37	Correct	501 ms	364 KB	Output is correct
38	Correct	278 ms	364 KB	Output is correct
39	Correct	340 ms	364 KB	Output is correct
40	Correct	318 ms	492 KB	Output is correct
41	Correct	323 ms	492 KB	Output is correct
42	Correct	504 ms	492 KB	Output is correct
43	Correct	395 ms	492 KB	Output is correct
44	Correct	375 ms	436 KB	Output is correct
45	Correct	308 ms	492 KB	Output is correct
46	Correct	325 ms	492 KB	Output is correct
47	Correct	337 ms	364 KB	Output is correct
48	Correct	355 ms	440 KB	Output is correct
49	Correct	291 ms	364 KB	Output is correct
50	Correct	273 ms	492 KB	Output is correct
51	Correct	272 ms	492 KB	Output is correct
52	Correct	354 ms	492 KB	Output is correct
53	Execution timed out	2069 ms	3328 KB	Time limit exceeded
54	Halted	0 ms	0 KB	-

Submission #341439

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