답안 #800608

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
800608	2023-08-01T16:43:19 Z	Dan4Life	Monochrome Points (JOI20_monochrome)	C++17	35 / 100	177 ms	5220 KB

monochrome

#include <bits/stdc++.h>
using namespace std;
const int N = (int)4e3+10;
string s; int n, ans, tot, fen[N], st[N];
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];
    for(int i = 0; i < 2*n; i++) v[s[i]>'B'].push_back(i+1);
    for(int k = 0; k < n; k++){ tot=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 tot+=sum(st[i]+1,i), upd(st[i],-1);
        }
        ans = max(ans, tot);
    }
    cout << ans;
}

Compilation message

monochrome.cpp: In function 'int main()':
monochrome.cpp:16:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   16 |             if(a>b) swap(a,b); st[a] = a; st[b]=a;
      |             ^~
monochrome.cpp:16:32: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   16 |             if(a>b) swap(a,b); st[a] = a; st[b]=a;
      |                                ^~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	4 ms	212 KB	Output is correct
15	Correct	4 ms	212 KB	Output is correct
16	Correct	4 ms	320 KB	Output is correct
17	Correct	5 ms	320 KB	Output is correct
18	Correct	3 ms	316 KB	Output is correct
19	Correct	3 ms	212 KB	Output is correct
20	Correct	3 ms	212 KB	Output is correct
21	Correct	3 ms	212 KB	Output is correct
22	Correct	3 ms	212 KB	Output is correct
23	Correct	2 ms	316 KB	Output is correct
24	Correct	3 ms	212 KB	Output is correct
25	Correct	3 ms	212 KB	Output is correct
26	Correct	3 ms	212 KB	Output is correct
27	Correct	3 ms	212 KB	Output is correct
28	Correct	3 ms	212 KB	Output is correct
29	Correct	2 ms	212 KB	Output is correct
30	Correct	3 ms	256 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct
32	Correct	3 ms	252 KB	Output is correct
33	Correct	4 ms	316 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	4 ms	212 KB	Output is correct
15	Correct	4 ms	212 KB	Output is correct
16	Correct	4 ms	320 KB	Output is correct
17	Correct	5 ms	320 KB	Output is correct
18	Correct	3 ms	316 KB	Output is correct
19	Correct	3 ms	212 KB	Output is correct
20	Correct	3 ms	212 KB	Output is correct
21	Correct	3 ms	212 KB	Output is correct
22	Correct	3 ms	212 KB	Output is correct
23	Correct	2 ms	316 KB	Output is correct
24	Correct	3 ms	212 KB	Output is correct
25	Correct	3 ms	212 KB	Output is correct
26	Correct	3 ms	212 KB	Output is correct
27	Correct	3 ms	212 KB	Output is correct
28	Correct	3 ms	212 KB	Output is correct
29	Correct	2 ms	212 KB	Output is correct
30	Correct	3 ms	256 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct
32	Correct	3 ms	252 KB	Output is correct
33	Correct	4 ms	316 KB	Output is correct
34	Correct	177 ms	348 KB	Output is correct
35	Correct	176 ms	340 KB	Output is correct
36	Correct	167 ms	344 KB	Output is correct
37	Correct	157 ms	352 KB	Output is correct
38	Correct	102 ms	340 KB	Output is correct
39	Correct	116 ms	340 KB	Output is correct
40	Correct	107 ms	340 KB	Output is correct
41	Correct	114 ms	344 KB	Output is correct
42	Correct	165 ms	344 KB	Output is correct
43	Correct	133 ms	340 KB	Output is correct
44	Correct	125 ms	340 KB	Output is correct
45	Correct	127 ms	340 KB	Output is correct
46	Correct	133 ms	340 KB	Output is correct
47	Correct	135 ms	340 KB	Output is correct
48	Correct	130 ms	352 KB	Output is correct
49	Correct	113 ms	340 KB	Output is correct
50	Correct	115 ms	340 KB	Output is correct
51	Correct	115 ms	340 KB	Output is correct
52	Correct	125 ms	340 KB	Output is correct

Subtask #4
0.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	256 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	4 ms	212 KB	Output is correct
15	Correct	4 ms	212 KB	Output is correct
16	Correct	4 ms	320 KB	Output is correct
17	Correct	5 ms	320 KB	Output is correct
18	Correct	3 ms	316 KB	Output is correct
19	Correct	3 ms	212 KB	Output is correct
20	Correct	3 ms	212 KB	Output is correct
21	Correct	3 ms	212 KB	Output is correct
22	Correct	3 ms	212 KB	Output is correct
23	Correct	2 ms	316 KB	Output is correct
24	Correct	3 ms	212 KB	Output is correct
25	Correct	3 ms	212 KB	Output is correct
26	Correct	3 ms	212 KB	Output is correct
27	Correct	3 ms	212 KB	Output is correct
28	Correct	3 ms	212 KB	Output is correct
29	Correct	2 ms	212 KB	Output is correct
30	Correct	3 ms	256 KB	Output is correct
31	Correct	3 ms	212 KB	Output is correct
32	Correct	3 ms	252 KB	Output is correct
33	Correct	4 ms	316 KB	Output is correct
34	Correct	177 ms	348 KB	Output is correct
35	Correct	176 ms	340 KB	Output is correct
36	Correct	167 ms	344 KB	Output is correct
37	Correct	157 ms	352 KB	Output is correct
38	Correct	102 ms	340 KB	Output is correct
39	Correct	116 ms	340 KB	Output is correct
40	Correct	107 ms	340 KB	Output is correct
41	Correct	114 ms	344 KB	Output is correct
42	Correct	165 ms	344 KB	Output is correct
43	Correct	133 ms	340 KB	Output is correct
44	Correct	125 ms	340 KB	Output is correct
45	Correct	127 ms	340 KB	Output is correct
46	Correct	133 ms	340 KB	Output is correct
47	Correct	135 ms	340 KB	Output is correct
48	Correct	130 ms	352 KB	Output is correct
49	Correct	113 ms	340 KB	Output is correct
50	Correct	115 ms	340 KB	Output is correct
51	Correct	115 ms	340 KB	Output is correct
52	Correct	125 ms	340 KB	Output is correct
53	Runtime error	10 ms	5220 KB	Execution killed with signal 11
54	Halted	0 ms	0 KB	-

답안 #800608

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