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답안 #995169

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
995169 2024-06-08T14:26:30 Z cadmiumsky Monochrome Points (JOI20_monochrome) C++17
35 / 100
 1855 ms 3460 KB 
#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;

using ll = long long;
using ld = long double;

//#define int ll
#define sz(x) ((int)(x).size())

using pii = pair<int,int>;
using tii = tuple<int,int,int>;

const int nmax = 2e5 + 5;

#define lsb(x) (x & -x)
struct AIB {
   vector<int> tree;
   void init(int n) { tree.assign(n + 5, 0); }
   void upd(int p, int x) {
      while(p < sz(tree)) tree[p] += x, p += lsb(p);
   }
   int query(int p) {
      int sum = 0;
      while(p > 0) sum += tree[p], p -= lsb(p);
      return sum;
   }
};

int n;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); // trebuia sa o incerc
ll init(string s) {
   int a = rng() % (sz(s) + 1);
   s = s.substr(a) + s.substr(0, a);
   stringstream haha;
   haha << s;
   
   queue<int> que[2];
   AIB aib;
   aib.init(n);
   for(int i = 1; i <= n; i++) {
      char ch;
      haha >> ch;
      if(ch == 'B') que[0].emplace(i);
      else que[1].emplace(i);
   }
   
   for(int i = 1; i <= n; i++) aib.upd(i, 1);
   ll sum = 0;
   
   for(int i = 1; i <= n; i++) {
      char ch;
      int P;
      haha >> ch;
      if(ch == 'B') P = que[1].front(), que[1].pop();
      else P = que[0].front(), que[0].pop();
      sum += aib.query(n) - aib.query(P);
      aib.upd(P, -1);
   }
   return sum;
}

signed main() {
   ld S = clock();
   cin.tie(0) -> sync_with_stdio(0);
   cin >> n;
   
   string s;
   cin >> s;
   ll rez = 0;
   while(clock() - S < (ld)CLOCKS_PER_SEC * 1.85) // ok ultima oara promit
      rez = max(rez, init(s));
   cout << rez << '\n';
}

/**
      Istenem! Nu poate fi real.
-- Surse verificate
*/

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1850 ms 428 KB Output is correct
2 Correct 1851 ms 436 KB Output is correct
3 Correct 1850 ms 344 KB Output is correct
4 Correct 1850 ms 428 KB Output is correct
5 Correct 1850 ms 436 KB Output is correct
6 Correct 1850 ms 428 KB Output is correct
7 Correct 1850 ms 432 KB Output is correct
8 Correct 1850 ms 344 KB Output is correct
9 Correct 1850 ms 348 KB Output is correct
10 Correct 1851 ms 348 KB Output is correct
11 Correct 1850 ms 432 KB Output is correct
12 Correct 1851 ms 432 KB Output is correct
13 Correct 1851 ms 348 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1850 ms 428 KB Output is correct
2 Correct 1851 ms 436 KB Output is correct
3 Correct 1850 ms 344 KB Output is correct
4 Correct 1850 ms 428 KB Output is correct
5 Correct 1850 ms 436 KB Output is correct
6 Correct 1850 ms 428 KB Output is correct
7 Correct 1850 ms 432 KB Output is correct
8 Correct 1850 ms 344 KB Output is correct
9 Correct 1850 ms 348 KB Output is correct
10 Correct 1851 ms 348 KB Output is correct
11 Correct 1850 ms 432 KB Output is correct
12 Correct 1851 ms 432 KB Output is correct
13 Correct 1851 ms 348 KB Output is correct
14 Correct 1851 ms 468 KB Output is correct
15 Correct 1851 ms 344 KB Output is correct
16 Correct 1851 ms 472 KB Output is correct
17 Correct 1850 ms 468 KB Output is correct
18 Correct 1850 ms 348 KB Output is correct
19 Correct 1850 ms 472 KB Output is correct
20 Correct 1851 ms 348 KB Output is correct
21 Correct 1851 ms 344 KB Output is correct
22 Correct 1850 ms 348 KB Output is correct
23 Correct 1851 ms 456 KB Output is correct
24 Correct 1851 ms 472 KB Output is correct
25 Correct 1850 ms 348 KB Output is correct
26 Correct 1850 ms 348 KB Output is correct
27 Correct 1850 ms 476 KB Output is correct
28 Correct 1850 ms 472 KB Output is correct
29 Correct 1850 ms 344 KB Output is correct
30 Correct 1851 ms 348 KB Output is correct
31 Correct 1851 ms 348 KB Output is correct
32 Correct 1850 ms 476 KB Output is correct
33 Correct 1850 ms 344 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1850 ms 428 KB Output is correct
2 Correct 1851 ms 436 KB Output is correct
3 Correct 1850 ms 344 KB Output is correct
4 Correct 1850 ms 428 KB Output is correct
5 Correct 1850 ms 436 KB Output is correct
6 Correct 1850 ms 428 KB Output is correct
7 Correct 1850 ms 432 KB Output is correct
8 Correct 1850 ms 344 KB Output is correct
9 Correct 1850 ms 348 KB Output is correct
10 Correct 1851 ms 348 KB Output is correct
11 Correct 1850 ms 432 KB Output is correct
12 Correct 1851 ms 432 KB Output is correct
13 Correct 1851 ms 348 KB Output is correct
14 Correct 1851 ms 468 KB Output is correct
15 Correct 1851 ms 344 KB Output is correct
16 Correct 1851 ms 472 KB Output is correct
17 Correct 1850 ms 468 KB Output is correct
18 Correct 1850 ms 348 KB Output is correct
19 Correct 1850 ms 472 KB Output is correct
20 Correct 1851 ms 348 KB Output is correct
21 Correct 1851 ms 344 KB Output is correct
22 Correct 1850 ms 348 KB Output is correct
23 Correct 1851 ms 456 KB Output is correct
24 Correct 1851 ms 472 KB Output is correct
25 Correct 1850 ms 348 KB Output is correct
26 Correct 1850 ms 348 KB Output is correct
27 Correct 1850 ms 476 KB Output is correct
28 Correct 1850 ms 472 KB Output is correct
29 Correct 1850 ms 344 KB Output is correct
30 Correct 1851 ms 348 KB Output is correct
31 Correct 1851 ms 348 KB Output is correct
32 Correct 1850 ms 476 KB Output is correct
33 Correct 1850 ms 344 KB Output is correct
34 Correct 1850 ms 344 KB Output is correct
35 Correct 1851 ms 348 KB Output is correct
36 Correct 1850 ms 348 KB Output is correct
37 Correct 1850 ms 504 KB Output is correct
38 Correct 1850 ms 344 KB Output is correct
39 Correct 1851 ms 348 KB Output is correct
40 Correct 1851 ms 344 KB Output is correct
41 Correct 1850 ms 348 KB Output is correct
42 Correct 1850 ms 348 KB Output is correct
43 Correct 1851 ms 504 KB Output is correct
44 Correct 1851 ms 600 KB Output is correct
45 Correct 1850 ms 348 KB Output is correct
46 Correct 1850 ms 516 KB Output is correct
47 Correct 1850 ms 516 KB Output is correct
48 Correct 1851 ms 344 KB Output is correct
49 Correct 1850 ms 592 KB Output is correct
50 Correct 1850 ms 512 KB Output is correct
51 Correct 1850 ms 344 KB Output is correct
52 Correct 1851 ms 348 KB Output is correct

Subtask #4
0.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1850 ms 428 KB Output is correct
2 Correct 1851 ms 436 KB Output is correct
3 Correct 1850 ms 344 KB Output is correct
4 Correct 1850 ms 428 KB Output is correct
5 Correct 1850 ms 436 KB Output is correct
6 Correct 1850 ms 428 KB Output is correct
7 Correct 1850 ms 432 KB Output is correct
8 Correct 1850 ms 344 KB Output is correct
9 Correct 1850 ms 348 KB Output is correct
10 Correct 1851 ms 348 KB Output is correct
11 Correct 1850 ms 432 KB Output is correct
12 Correct 1851 ms 432 KB Output is correct
13 Correct 1851 ms 348 KB Output is correct
14 Correct 1851 ms 468 KB Output is correct
15 Correct 1851 ms 344 KB Output is correct
16 Correct 1851 ms 472 KB Output is correct
17 Correct 1850 ms 468 KB Output is correct
18 Correct 1850 ms 348 KB Output is correct
19 Correct 1850 ms 472 KB Output is correct
20 Correct 1851 ms 348 KB Output is correct
21 Correct 1851 ms 344 KB Output is correct
22 Correct 1850 ms 348 KB Output is correct
23 Correct 1851 ms 456 KB Output is correct
24 Correct 1851 ms 472 KB Output is correct
25 Correct 1850 ms 348 KB Output is correct
26 Correct 1850 ms 348 KB Output is correct
27 Correct 1850 ms 476 KB Output is correct
28 Correct 1850 ms 472 KB Output is correct
29 Correct 1850 ms 344 KB Output is correct
30 Correct 1851 ms 348 KB Output is correct
31 Correct 1851 ms 348 KB Output is correct
32 Correct 1850 ms 476 KB Output is correct
33 Correct 1850 ms 344 KB Output is correct
34 Correct 1850 ms 344 KB Output is correct
35 Correct 1851 ms 348 KB Output is correct
36 Correct 1850 ms 348 KB Output is correct
37 Correct 1850 ms 504 KB Output is correct
38 Correct 1850 ms 344 KB Output is correct
39 Correct 1851 ms 348 KB Output is correct
40 Correct 1851 ms 344 KB Output is correct
41 Correct 1850 ms 348 KB Output is correct
42 Correct 1850 ms 348 KB Output is correct
43 Correct 1851 ms 504 KB Output is correct
44 Correct 1851 ms 600 KB Output is correct
45 Correct 1850 ms 348 KB Output is correct
46 Correct 1850 ms 516 KB Output is correct
47 Correct 1850 ms 516 KB Output is correct
48 Correct 1851 ms 344 KB Output is correct
49 Correct 1850 ms 592 KB Output is correct
50 Correct 1850 ms 512 KB Output is correct
51 Correct 1850 ms 344 KB Output is correct
52 Correct 1851 ms 348 KB Output is correct
53 Incorrect 1855 ms 3460 KB Output isn't correct
54 Halted 0 ms 0 KB -