oj.uz

Submission #1031871

# Submission time Handle Problem Language Result Execution time Memory
1031871 2024-07-23T08:17:43 Z 김은성(#10960) Monochrome Points (JOI20_monochrome) C++17
35 / 100
 1595 ms 2680 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
char s[400009];
int main(){
    int n, i;
    scanf("%d", &n);
    scanf(" %s", s);
    vector<int> b, w;
    for(i=0; i<2*n; i++){
        if(s[i] == 'B')
            b.push_back(i);
        else
            w.push_back(i);
    }
    ll ans = 0;
    int temp = lower_bound(w.begin(), w.end(), b[0]+n) - w.begin();
    /*for(int j=0; j<=500; j++){
        ll cnt = 0;
        for(i=0; i<n; i++){
            cnt += n - min((w[(i+j+1000*n)%n]-b[i]+6*n)%(2*n), 2*n - (w[(i+j+1000*n)%n]-b[i]+6*n)%(2*n));
        }
        ans = max(ans, (ll)n*(ll)(n-1)/2 - cnt/2);
    }*/
    for(int j=temp-1000; j<=temp+1000; j++){
        ll cnt = 0;
        for(i=0; i<n; i++){
            cnt += n - min((w[(i+j+1000*n)%n]-b[i]+6*n)%(2*n), 2*n - (w[(i+j+1000*n)%n]-b[i]+6*n)%(2*n));
        }
        ans = max(ans, (ll)n*(ll)(n-1)/2  - cnt/2);
    }
    printf("%lld\n", ans);
    return 0;
}

Compilation message

monochrome.cpp: In function 'int main()':
monochrome.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
monochrome.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     scanf(" %s", s);
      |     ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 3 ms 348 KB Output is correct
15 Correct 3 ms 348 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 3 ms 348 KB Output is correct
21 Correct 2 ms 456 KB Output is correct
22 Correct 2 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 2 ms 448 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 3 ms 452 KB Output is correct
29 Correct 3 ms 348 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 3 ms 348 KB Output is correct
32 Correct 3 ms 348 KB Output is correct
33 Correct 3 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 3 ms 348 KB Output is correct
15 Correct 3 ms 348 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 3 ms 348 KB Output is correct
21 Correct 2 ms 456 KB Output is correct
22 Correct 2 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 2 ms 448 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 3 ms 452 KB Output is correct
29 Correct 3 ms 348 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 3 ms 348 KB Output is correct
32 Correct 3 ms 348 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 17 ms 468 KB Output is correct
35 Correct 16 ms 468 KB Output is correct
36 Correct 16 ms 344 KB Output is correct
37 Correct 16 ms 348 KB Output is correct
38 Correct 15 ms 348 KB Output is correct
39 Correct 16 ms 464 KB Output is correct
40 Correct 15 ms 468 KB Output is correct
41 Correct 14 ms 476 KB Output is correct
42 Correct 16 ms 472 KB Output is correct
43 Correct 16 ms 352 KB Output is correct
44 Correct 16 ms 468 KB Output is correct
45 Correct 15 ms 476 KB Output is correct
46 Correct 16 ms 476 KB Output is correct
47 Correct 16 ms 468 KB Output is correct
48 Correct 16 ms 348 KB Output is correct
49 Correct 15 ms 472 KB Output is correct
50 Correct 16 ms 472 KB Output is correct
51 Correct 16 ms 464 KB Output is correct
52 Correct 16 ms 468 KB Output is correct

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 3 ms 348 KB Output is correct
15 Correct 3 ms 348 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 348 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 3 ms 348 KB Output is correct
21 Correct 2 ms 456 KB Output is correct
22 Correct 2 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 2 ms 448 KB Output is correct
27 Correct 2 ms 348 KB Output is correct
28 Correct 3 ms 452 KB Output is correct
29 Correct 3 ms 348 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 3 ms 348 KB Output is correct
32 Correct 3 ms 348 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 17 ms 468 KB Output is correct
35 Correct 16 ms 468 KB Output is correct
36 Correct 16 ms 344 KB Output is correct
37 Correct 16 ms 348 KB Output is correct
38 Correct 15 ms 348 KB Output is correct
39 Correct 16 ms 464 KB Output is correct
40 Correct 15 ms 468 KB Output is correct
41 Correct 14 ms 476 KB Output is correct
42 Correct 16 ms 472 KB Output is correct
43 Correct 16 ms 352 KB Output is correct
44 Correct 16 ms 468 KB Output is correct
45 Correct 15 ms 476 KB Output is correct
46 Correct 16 ms 476 KB Output is correct
47 Correct 16 ms 468 KB Output is correct
48 Correct 16 ms 348 KB Output is correct
49 Correct 15 ms 472 KB Output is correct
50 Correct 16 ms 472 KB Output is correct
51 Correct 16 ms 464 KB Output is correct
52 Correct 16 ms 468 KB Output is correct
53 Correct 1595 ms 2400 KB Output is correct
54 Correct 1588 ms 2524 KB Output is correct
55 Correct 1519 ms 2364 KB Output is correct
56 Correct 1531 ms 2680 KB Output is correct
57 Correct 1546 ms 2388 KB Output is correct
58 Incorrect 1572 ms 2644 KB Output isn't correct
59 Halted 0 ms 0 KB -