oj.uz

Submission #628433

# Submission time Handle Problem Language Result Execution time Memory
628433 2022-08-13T11:56:10 Z MohamedFaresNebili Monochrome Points (JOI20_monochrome) C++14
35 / 100
 2000 ms 8468 KB 
#include <bits/stdc++.h>

            using namespace std;

            using ll = long long;
            using ld = long double;
            using pi = pair<pair<int, int>, pair<int, int>>;

            #define ff first
            #define ss second
            #define pb push_back
            #define all(x) (x).begin(), (x).end()
            #define lb lower_bound
            #define int ll

            int N, ST[80005]; string S;
            vector<int> A, B;

            int solve(int v) {
                vector<pair<int, int>> P;
                for(int l = 0; l < N; l++)
                    P.push_back({A[l], B[(l + v) % N]});
                int res = 0;
                for(int l = 0; l < N; l++) {
                    for(int i = l + 1; i < N; i++) {
                        int U = P[l].first, V = P[l].second;
                        int X = P[i].first, Y = P[i].second;
                        if(U > V) swap(U, V);
                        if(X > Y) swap(X, Y);
                        if(V < X) continue;
                        if(Y < U) continue;
                        if(U > X && V < Y) continue;
                        if(X > U && Y < V) continue;
                        res++;
                    }
                }
                return res;
            }

            int32_t main() {
                ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
                cin >> N >> S; int res = 0;
                for(int l = 0; l < 2 * N; l++) {
                    if(S[l] == 'B') A.push_back(l);
                    if(S[l] == 'W') B.push_back(l);
                }
                int lo = 0, hi = N - 1;
                while(lo <= hi) {
                    int md = (lo + hi) / 2;
                    int U = solve(md), V = solve(md + 1);
                    if(V > U) { lo = md + 1, res = max(res, V); }
                    else hi = md - 1, res = max(res, U);
                }
                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 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 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 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 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 2 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 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 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 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 2 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 2 ms 352 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 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 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 2 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 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 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 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 2 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 2 ms 352 KB Output is correct
34 Correct 82 ms 412 KB Output is correct
35 Correct 62 ms 424 KB Output is correct
36 Correct 72 ms 424 KB Output is correct
37 Correct 84 ms 416 KB Output is correct
38 Correct 76 ms 340 KB Output is correct
39 Correct 68 ms 416 KB Output is correct
40 Correct 56 ms 432 KB Output is correct
41 Correct 44 ms 412 KB Output is correct
42 Correct 63 ms 420 KB Output is correct
43 Correct 69 ms 340 KB Output is correct
44 Correct 57 ms 424 KB Output is correct
45 Correct 57 ms 340 KB Output is correct
46 Correct 61 ms 340 KB Output is correct
47 Correct 63 ms 412 KB Output is correct
48 Correct 66 ms 340 KB Output is correct
49 Correct 59 ms 416 KB Output is correct
50 Correct 59 ms 416 KB Output is correct
51 Correct 54 ms 340 KB Output is correct
52 Correct 61 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 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 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 2 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 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 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 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 2 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 2 ms 352 KB Output is correct
34 Correct 82 ms 412 KB Output is correct
35 Correct 62 ms 424 KB Output is correct
36 Correct 72 ms 424 KB Output is correct
37 Correct 84 ms 416 KB Output is correct
38 Correct 76 ms 340 KB Output is correct
39 Correct 68 ms 416 KB Output is correct
40 Correct 56 ms 432 KB Output is correct
41 Correct 44 ms 412 KB Output is correct
42 Correct 63 ms 420 KB Output is correct
43 Correct 69 ms 340 KB Output is correct
44 Correct 57 ms 424 KB Output is correct
45 Correct 57 ms 340 KB Output is correct
46 Correct 61 ms 340 KB Output is correct
47 Correct 63 ms 412 KB Output is correct
48 Correct 66 ms 340 KB Output is correct
49 Correct 59 ms 416 KB Output is correct
50 Correct 59 ms 416 KB Output is correct
51 Correct 54 ms 340 KB Output is correct
52 Correct 61 ms 436 KB Output is correct
53 Execution timed out 2091 ms 8468 KB Time limit exceeded
54 Halted 0 ms 0 KB -