답안 #1031869

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1031869	2024-07-23T08:16:33 Z	김은성(#10960)	Monochrome Points (JOI20_monochrome)	C++17	35 / 100	1008 ms	3140 KB

monochrome

#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-400; j<=temp+400; 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

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	344 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	344 KB	Output is correct
11	Correct	348 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	344 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 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	344 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	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	2 ms	348 KB	Output is correct
16	Correct	2 ms	348 KB	Output is correct
17	Correct	2 ms	344 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	348 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	344 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	348 KB	Output is correct
2	Correct	0 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	344 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	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	2 ms	348 KB	Output is correct
16	Correct	2 ms	348 KB	Output is correct
17	Correct	2 ms	344 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	348 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	344 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	11 ms	600 KB	Output is correct
35	Correct	10 ms	348 KB	Output is correct
36	Correct	11 ms	468 KB	Output is correct
37	Correct	10 ms	344 KB	Output is correct
38	Correct	10 ms	348 KB	Output is correct
39	Correct	10 ms	348 KB	Output is correct
40	Correct	10 ms	472 KB	Output is correct
41	Correct	9 ms	472 KB	Output is correct
42	Correct	10 ms	348 KB	Output is correct
43	Correct	9 ms	348 KB	Output is correct
44	Correct	8 ms	348 KB	Output is correct
45	Correct	10 ms	468 KB	Output is correct
46	Correct	9 ms	464 KB	Output is correct
47	Correct	9 ms	352 KB	Output is correct
48	Correct	9 ms	352 KB	Output is correct
49	Correct	10 ms	348 KB	Output is correct
50	Correct	9 ms	460 KB	Output is correct
51	Correct	9 ms	348 KB	Output is correct
52	Correct	9 ms	348 KB	Output is correct

Subtask #4
0.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 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	344 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	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	2 ms	348 KB	Output is correct
16	Correct	2 ms	348 KB	Output is correct
17	Correct	2 ms	344 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	348 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	344 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	11 ms	600 KB	Output is correct
35	Correct	10 ms	348 KB	Output is correct
36	Correct	11 ms	468 KB	Output is correct
37	Correct	10 ms	344 KB	Output is correct
38	Correct	10 ms	348 KB	Output is correct
39	Correct	10 ms	348 KB	Output is correct
40	Correct	10 ms	472 KB	Output is correct
41	Correct	9 ms	472 KB	Output is correct
42	Correct	10 ms	348 KB	Output is correct
43	Correct	9 ms	348 KB	Output is correct
44	Correct	8 ms	348 KB	Output is correct
45	Correct	10 ms	468 KB	Output is correct
46	Correct	9 ms	464 KB	Output is correct
47	Correct	9 ms	352 KB	Output is correct
48	Correct	9 ms	352 KB	Output is correct
49	Correct	10 ms	348 KB	Output is correct
50	Correct	9 ms	460 KB	Output is correct
51	Correct	9 ms	348 KB	Output is correct
52	Correct	9 ms	348 KB	Output is correct
53	Correct	909 ms	2400 KB	Output is correct
54	Correct	1008 ms	2828 KB	Output is correct
55	Correct	946 ms	2904 KB	Output is correct
56	Correct	910 ms	2680 KB	Output is correct
57	Correct	942 ms	2896 KB	Output is correct
58	Incorrect	969 ms	3140 KB	Output isn't correct
59	Halted	0 ms	0 KB	-

답안 #1031869

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