oj.uz

Submission #709697

# Submission time Handle Problem Language Result Execution time Memory
709697 2023-03-14T08:04:34 Z Antekb Monochrome Points (JOI20_monochrome) C++17
25 / 100
 2000 ms 308 KB 
#include<bits/stdc++.h>

#define st first
#define nd second
#define eb emplace_back
#define pb push_back
#define pp pop_back
#define all(x) x.begin(), x.end()

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;

void debug(){cerr<<"\n";}
template<typename H, typename... T>
void debug(H h, T... t){cerr<<h;if(sizeof...(t))cerr<<", ";debug(t...);};
#define deb(x...) cerr<<#x<<" = ";debug(x);

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

const int N=1e5+5, INF=1e9+5;
int solve(int n, string s){
	int wsk=n, wsk2=n;
	vi V(n);
	for(int i=0; i<n; i++){
		//deb(wsk, wsk2);
		if(s[i]=='B'){
			while(s[wsk]=='B')wsk++;
			V[wsk-n]=i;
			wsk++;
		}
		else{
			while(s[wsk2]=='W')wsk2++;
			V[wsk2-n]=i;
			wsk2++;
		}
	}
	int ans=0;
	for(int i=0; i<n; i++){
		//deb(V[i]);
		for(int j=i+1; j<n; j++){
			if(V[i]<V[j])ans++;
		}
	}
	return ans;
}
int main(){
	//ios_base::sync_with_stdio(0);cin.tie(0);
	int n;
	cin>>n;
	string s;
	cin>>s;
	int ans=0;
	for(int i=0; i<n; i++){
		for(int j=1; j<n+n; j++){
			swap(s[j-1], s[j]);
		}
		ans=max(ans, solve(n, s));
	}
	cout<<ans;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 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 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 1 ms 212 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 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 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 14 ms 308 KB Output is correct
15 Correct 15 ms 212 KB Output is correct
16 Correct 15 ms 308 KB Output is correct
17 Correct 14 ms 212 KB Output is correct
18 Correct 10 ms 212 KB Output is correct
19 Correct 12 ms 300 KB Output is correct
20 Correct 11 ms 308 KB Output is correct
21 Correct 11 ms 212 KB Output is correct
22 Correct 11 ms 212 KB Output is correct
23 Correct 5 ms 212 KB Output is correct
24 Correct 10 ms 304 KB Output is correct
25 Correct 8 ms 300 KB Output is correct
26 Correct 10 ms 212 KB Output is correct
27 Correct 10 ms 212 KB Output is correct
28 Correct 12 ms 212 KB Output is correct
29 Correct 8 ms 308 KB Output is correct
30 Correct 9 ms 308 KB Output is correct
31 Correct 12 ms 308 KB Output is correct
32 Correct 12 ms 212 KB Output is correct
33 Correct 13 ms 212 KB Output is correct

Subtask #3
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 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 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 14 ms 308 KB Output is correct
15 Correct 15 ms 212 KB Output is correct
16 Correct 15 ms 308 KB Output is correct
17 Correct 14 ms 212 KB Output is correct
18 Correct 10 ms 212 KB Output is correct
19 Correct 12 ms 300 KB Output is correct
20 Correct 11 ms 308 KB Output is correct
21 Correct 11 ms 212 KB Output is correct
22 Correct 11 ms 212 KB Output is correct
23 Correct 5 ms 212 KB Output is correct
24 Correct 10 ms 304 KB Output is correct
25 Correct 8 ms 300 KB Output is correct
26 Correct 10 ms 212 KB Output is correct
27 Correct 10 ms 212 KB Output is correct
28 Correct 12 ms 212 KB Output is correct
29 Correct 8 ms 308 KB Output is correct
30 Correct 9 ms 308 KB Output is correct
31 Correct 12 ms 308 KB Output is correct
32 Correct 12 ms 212 KB Output is correct
33 Correct 13 ms 212 KB Output is correct
34 Execution timed out 2089 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 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 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 14 ms 308 KB Output is correct
15 Correct 15 ms 212 KB Output is correct
16 Correct 15 ms 308 KB Output is correct
17 Correct 14 ms 212 KB Output is correct
18 Correct 10 ms 212 KB Output is correct
19 Correct 12 ms 300 KB Output is correct
20 Correct 11 ms 308 KB Output is correct
21 Correct 11 ms 212 KB Output is correct
22 Correct 11 ms 212 KB Output is correct
23 Correct 5 ms 212 KB Output is correct
24 Correct 10 ms 304 KB Output is correct
25 Correct 8 ms 300 KB Output is correct
26 Correct 10 ms 212 KB Output is correct
27 Correct 10 ms 212 KB Output is correct
28 Correct 12 ms 212 KB Output is correct
29 Correct 8 ms 308 KB Output is correct
30 Correct 9 ms 308 KB Output is correct
31 Correct 12 ms 308 KB Output is correct
32 Correct 12 ms 212 KB Output is correct
33 Correct 13 ms 212 KB Output is correct
34 Execution timed out 2089 ms 212 KB Time limit exceeded
35 Halted 0 ms 0 KB -