Submission #341453

# Submission time Handle Problem Language Result Execution time Memory
341453 2020-12-29T18:21:34 Z ryansee Monochrome Points (JOI20_monochrome) C++14
35 / 100
2000 ms 748 KB
#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;
deque<char> A;
ll nC2(ll n) { return n * (n-1) / 2; }
ll lol() {
	ll ans = 0, grad = 0;
	FOR(i,0,n-1) {
		//if(A[i] == A[n+i]) {
			if(A[i] == 'W') {
				-- grad;
			} 
      		if(A[n+i] == 'B') {
				++ grad;
			}
		//}
		ans += abs(grad);
	}
	assert(grad == 0);
	return nC2(n) - ans;
}
int main() {
	FAST
	cin>>n;
	A.resize(n*2);
	for(auto&i:A)cin>>i;
	FOR(i,0,n*2-1) {
		ans = max(ans, lol());
		A.eb(A[0]), A.pop_front();
	}
	cout<<ans<<'\n';
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 2 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 2 ms 364 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 2 ms 512 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 2 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 2 ms 364 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 2 ms 512 KB Output is correct
34 Correct 32 ms 364 KB Output is correct
35 Correct 32 ms 364 KB Output is correct
36 Correct 36 ms 364 KB Output is correct
37 Correct 28 ms 364 KB Output is correct
38 Correct 29 ms 364 KB Output is correct
39 Correct 30 ms 364 KB Output is correct
40 Correct 25 ms 364 KB Output is correct
41 Correct 26 ms 364 KB Output is correct
42 Correct 38 ms 492 KB Output is correct
43 Correct 39 ms 400 KB Output is correct
44 Correct 31 ms 364 KB Output is correct
45 Correct 34 ms 364 KB Output is correct
46 Correct 31 ms 364 KB Output is correct
47 Correct 30 ms 364 KB Output is correct
48 Correct 31 ms 364 KB Output is correct
49 Correct 31 ms 364 KB Output is correct
50 Correct 34 ms 364 KB Output is correct
51 Correct 43 ms 364 KB Output is correct
52 Correct 32 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 2 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 2 ms 364 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 2 ms 512 KB Output is correct
34 Correct 32 ms 364 KB Output is correct
35 Correct 32 ms 364 KB Output is correct
36 Correct 36 ms 364 KB Output is correct
37 Correct 28 ms 364 KB Output is correct
38 Correct 29 ms 364 KB Output is correct
39 Correct 30 ms 364 KB Output is correct
40 Correct 25 ms 364 KB Output is correct
41 Correct 26 ms 364 KB Output is correct
42 Correct 38 ms 492 KB Output is correct
43 Correct 39 ms 400 KB Output is correct
44 Correct 31 ms 364 KB Output is correct
45 Correct 34 ms 364 KB Output is correct
46 Correct 31 ms 364 KB Output is correct
47 Correct 30 ms 364 KB Output is correct
48 Correct 31 ms 364 KB Output is correct
49 Correct 31 ms 364 KB Output is correct
50 Correct 34 ms 364 KB Output is correct
51 Correct 43 ms 364 KB Output is correct
52 Correct 32 ms 364 KB Output is correct
53 Execution timed out 2079 ms 748 KB Time limit exceeded
54 Halted 0 ms 0 KB -