답안 #1031866

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1031866	2024-07-23T08:12:38 Z	김은성(#10960)	Monochrome Points (JOI20_monochrome)	C++17	35 / 100	955 ms	2400 KB

monochrome

#include <bits/stdc++.h>
using namespace std;
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);
    }
    int ans = 0;
    int temp = lower_bound(w.begin(), w.end(), b[0]+n) - w.begin();
    for(int j=0; j<=500; j++){
        int 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, n*(n-1)/2 - cnt/2);
    }
    for(int j=temp-400; j<=temp+400; j++){
        int 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, n*(n-1)/2 - cnt/2);
    }
    printf("%d\n", ans);
    return 0;
}

Compilation message

monochrome.cpp: In function 'int main()':
monochrome.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
monochrome.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf(" %s", s);
      |     ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 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	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 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	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	2 ms	448 KB	Output is correct
16	Correct	2 ms	348 KB	Output is correct
17	Correct	2 ms	448 KB	Output is correct
18	Correct	2 ms	348 KB	Output is correct
19	Correct	2 ms	348 KB	Output is correct
20	Correct	2 ms	348 KB	Output is correct
21	Correct	2 ms	348 KB	Output is correct
22	Correct	2 ms	444 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	2 ms	348 KB	Output is correct
26	Correct	2 ms	348 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	348 KB	Output is correct
29	Correct	2 ms	348 KB	Output is correct
30	Correct	2 ms	348 KB	Output is correct
31	Correct	2 ms	348 KB	Output is correct
32	Correct	2 ms	348 KB	Output is correct
33	Correct	2 ms	348 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 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	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	2 ms	448 KB	Output is correct
16	Correct	2 ms	348 KB	Output is correct
17	Correct	2 ms	448 KB	Output is correct
18	Correct	2 ms	348 KB	Output is correct
19	Correct	2 ms	348 KB	Output is correct
20	Correct	2 ms	348 KB	Output is correct
21	Correct	2 ms	348 KB	Output is correct
22	Correct	2 ms	444 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	2 ms	348 KB	Output is correct
26	Correct	2 ms	348 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	348 KB	Output is correct
29	Correct	2 ms	348 KB	Output is correct
30	Correct	2 ms	348 KB	Output is correct
31	Correct	2 ms	348 KB	Output is correct
32	Correct	2 ms	348 KB	Output is correct
33	Correct	2 ms	348 KB	Output is correct
34	Correct	10 ms	348 KB	Output is correct
35	Correct	11 ms	348 KB	Output is correct
36	Correct	10 ms	472 KB	Output is correct
37	Correct	10 ms	600 KB	Output is correct
38	Correct	10 ms	468 KB	Output is correct
39	Correct	10 ms	348 KB	Output is correct
40	Correct	10 ms	344 KB	Output is correct
41	Correct	9 ms	348 KB	Output is correct
42	Correct	10 ms	472 KB	Output is correct
43	Correct	10 ms	468 KB	Output is correct
44	Correct	10 ms	600 KB	Output is correct
45	Correct	10 ms	468 KB	Output is correct
46	Correct	10 ms	348 KB	Output is correct
47	Correct	10 ms	472 KB	Output is correct
48	Correct	10 ms	476 KB	Output is correct
49	Correct	9 ms	348 KB	Output is correct
50	Correct	11 ms	348 KB	Output is correct
51	Correct	10 ms	348 KB	Output is correct
52	Correct	11 ms	344 KB	Output is correct

Subtask #4
0.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 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	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	2 ms	448 KB	Output is correct
16	Correct	2 ms	348 KB	Output is correct
17	Correct	2 ms	448 KB	Output is correct
18	Correct	2 ms	348 KB	Output is correct
19	Correct	2 ms	348 KB	Output is correct
20	Correct	2 ms	348 KB	Output is correct
21	Correct	2 ms	348 KB	Output is correct
22	Correct	2 ms	444 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	2 ms	348 KB	Output is correct
25	Correct	2 ms	348 KB	Output is correct
26	Correct	2 ms	348 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	348 KB	Output is correct
29	Correct	2 ms	348 KB	Output is correct
30	Correct	2 ms	348 KB	Output is correct
31	Correct	2 ms	348 KB	Output is correct
32	Correct	2 ms	348 KB	Output is correct
33	Correct	2 ms	348 KB	Output is correct
34	Correct	10 ms	348 KB	Output is correct
35	Correct	11 ms	348 KB	Output is correct
36	Correct	10 ms	472 KB	Output is correct
37	Correct	10 ms	600 KB	Output is correct
38	Correct	10 ms	468 KB	Output is correct
39	Correct	10 ms	348 KB	Output is correct
40	Correct	10 ms	344 KB	Output is correct
41	Correct	9 ms	348 KB	Output is correct
42	Correct	10 ms	472 KB	Output is correct
43	Correct	10 ms	468 KB	Output is correct
44	Correct	10 ms	600 KB	Output is correct
45	Correct	10 ms	468 KB	Output is correct
46	Correct	10 ms	348 KB	Output is correct
47	Correct	10 ms	472 KB	Output is correct
48	Correct	10 ms	476 KB	Output is correct
49	Correct	9 ms	348 KB	Output is correct
50	Correct	11 ms	348 KB	Output is correct
51	Correct	10 ms	348 KB	Output is correct
52	Correct	11 ms	344 KB	Output is correct
53	Incorrect	955 ms	2400 KB	Output isn't correct
54	Halted	0 ms	0 KB	-

답안 #1031866

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 21.0 / 21.0

Subtask #3 10.0 / 10.0

Subtask #4 0.0 / 65.0

Subtask #1
4.0 / 4.0

Subtask #2
21.0 / 21.0

Subtask #3
10.0 / 10.0

Subtask #4
0.0 / 65.0