답안 #800602

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
800602	2023-08-01T16:38:14 Z	Dan4Life	Monochrome Points (JOI20_monochrome)	C++17	35 / 100	2000 ms	6168 KB

monochrome

#include <bits/stdc++.h>
using namespace std;
const int N = (int)4e5+10;
int n, fen[N], st[N];
string s;
 
void upd(int x, int v){
    for(; x<N; x+=x&-x) fen[x]+=v;
}
int sum(int x){
    int s=0; for(; x>0; x-=x&-x)s+=fen[x]; return s;
}
int sum(int a, int b){
    return (a<=b)*(sum(b)-sum(a-1));
}
int main()
{
	cin >> n >> s; vector<int> v[2]; int ss = 0;
    for(int i = 0; i < 2*n; i++) v[s[i]=='B'].push_back(i+1);
    for(int k = 0; k < n; k++){
        int ans = 0;
        for(int i = 1; i <= 2*n; i++) st[i]=0;
        for(int i = 0; i < n; i++){
            int a = v[0][i], b = v[1][(i+k)%n];
            if(a>b) swap(a,b);
            st[a] = a; st[b]=a;
        }
        for(int i = 1; i <= 2*n; i++){
            if(st[i]==i) upd(st[i],1);
            else ans+=sum(st[i]+1,i), upd(st[i],-1);
        }
        ss = max(ans, ss);
    }
    cout << ss;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	304 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	304 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	7 ms	340 KB	Output is correct
15	Correct	6 ms	340 KB	Output is correct
16	Correct	6 ms	360 KB	Output is correct
17	Correct	7 ms	340 KB	Output is correct
18	Correct	4 ms	340 KB	Output is correct
19	Correct	5 ms	340 KB	Output is correct
20	Correct	5 ms	340 KB	Output is correct
21	Correct	4 ms	360 KB	Output is correct
22	Correct	5 ms	340 KB	Output is correct
23	Correct	3 ms	340 KB	Output is correct
24	Correct	4 ms	340 KB	Output is correct
25	Correct	4 ms	352 KB	Output is correct
26	Correct	4 ms	340 KB	Output is correct
27	Correct	5 ms	360 KB	Output is correct
28	Correct	5 ms	340 KB	Output is correct
29	Correct	4 ms	340 KB	Output is correct
30	Correct	4 ms	304 KB	Output is correct
31	Correct	5 ms	340 KB	Output is correct
32	Correct	5 ms	356 KB	Output is correct
33	Correct	5 ms	340 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	304 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	7 ms	340 KB	Output is correct
15	Correct	6 ms	340 KB	Output is correct
16	Correct	6 ms	360 KB	Output is correct
17	Correct	7 ms	340 KB	Output is correct
18	Correct	4 ms	340 KB	Output is correct
19	Correct	5 ms	340 KB	Output is correct
20	Correct	5 ms	340 KB	Output is correct
21	Correct	4 ms	360 KB	Output is correct
22	Correct	5 ms	340 KB	Output is correct
23	Correct	3 ms	340 KB	Output is correct
24	Correct	4 ms	340 KB	Output is correct
25	Correct	4 ms	352 KB	Output is correct
26	Correct	4 ms	340 KB	Output is correct
27	Correct	5 ms	360 KB	Output is correct
28	Correct	5 ms	340 KB	Output is correct
29	Correct	4 ms	340 KB	Output is correct
30	Correct	4 ms	304 KB	Output is correct
31	Correct	5 ms	340 KB	Output is correct
32	Correct	5 ms	356 KB	Output is correct
33	Correct	5 ms	340 KB	Output is correct
34	Correct	263 ms	340 KB	Output is correct
35	Correct	253 ms	388 KB	Output is correct
36	Correct	238 ms	340 KB	Output is correct
37	Correct	232 ms	380 KB	Output is correct
38	Correct	173 ms	380 KB	Output is correct
39	Correct	197 ms	392 KB	Output is correct
40	Correct	168 ms	340 KB	Output is correct
41	Correct	167 ms	384 KB	Output is correct
42	Correct	252 ms	340 KB	Output is correct
43	Correct	215 ms	388 KB	Output is correct
44	Correct	198 ms	380 KB	Output is correct
45	Correct	198 ms	384 KB	Output is correct
46	Correct	227 ms	384 KB	Output is correct
47	Correct	238 ms	340 KB	Output is correct
48	Correct	206 ms	392 KB	Output is correct
49	Correct	162 ms	376 KB	Output is correct
50	Correct	200 ms	384 KB	Output is correct
51	Correct	211 ms	380 KB	Output is correct
52	Correct	209 ms	384 KB	Output is correct

Subtask #4
0.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	304 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	7 ms	340 KB	Output is correct
15	Correct	6 ms	340 KB	Output is correct
16	Correct	6 ms	360 KB	Output is correct
17	Correct	7 ms	340 KB	Output is correct
18	Correct	4 ms	340 KB	Output is correct
19	Correct	5 ms	340 KB	Output is correct
20	Correct	5 ms	340 KB	Output is correct
21	Correct	4 ms	360 KB	Output is correct
22	Correct	5 ms	340 KB	Output is correct
23	Correct	3 ms	340 KB	Output is correct
24	Correct	4 ms	340 KB	Output is correct
25	Correct	4 ms	352 KB	Output is correct
26	Correct	4 ms	340 KB	Output is correct
27	Correct	5 ms	360 KB	Output is correct
28	Correct	5 ms	340 KB	Output is correct
29	Correct	4 ms	340 KB	Output is correct
30	Correct	4 ms	304 KB	Output is correct
31	Correct	5 ms	340 KB	Output is correct
32	Correct	5 ms	356 KB	Output is correct
33	Correct	5 ms	340 KB	Output is correct
34	Correct	263 ms	340 KB	Output is correct
35	Correct	253 ms	388 KB	Output is correct
36	Correct	238 ms	340 KB	Output is correct
37	Correct	232 ms	380 KB	Output is correct
38	Correct	173 ms	380 KB	Output is correct
39	Correct	197 ms	392 KB	Output is correct
40	Correct	168 ms	340 KB	Output is correct
41	Correct	167 ms	384 KB	Output is correct
42	Correct	252 ms	340 KB	Output is correct
43	Correct	215 ms	388 KB	Output is correct
44	Correct	198 ms	380 KB	Output is correct
45	Correct	198 ms	384 KB	Output is correct
46	Correct	227 ms	384 KB	Output is correct
47	Correct	238 ms	340 KB	Output is correct
48	Correct	206 ms	392 KB	Output is correct
49	Correct	162 ms	376 KB	Output is correct
50	Correct	200 ms	384 KB	Output is correct
51	Correct	211 ms	380 KB	Output is correct
52	Correct	209 ms	384 KB	Output is correct
53	Execution timed out	2037 ms	6168 KB	Time limit exceeded
54	Halted	0 ms	0 KB	-

답안 #800602

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