Submission #527641

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
527641	2022-02-17T21:19:53 Z	ajpiano	Monochrome Points (JOI20_monochrome)	C++17	35 / 100	2000 ms	4280 KB

monochrome

//https://oj.uz/problem/view/JOI20_monochrome
#include <bits/stdc++.h>

using namespace std;

#define f first
#define s second

typedef long long ll;
typedef pair<int,int> pi;

struct bit{
    vector<int> fen;
    int sz = 0;
    bit (int n){
        sz = n+5; fen.resize(sz);
    }

    void add(int pos){
        pos++;
        for(; pos < sz; pos += pos&-pos) fen[pos]++;
    }

    int asum(int pos){
        pos++;
        int ans = 0;
        for(; pos > 0; pos -= pos&-pos) ans += fen[pos];
        return ans;
    }
    int sum(int l, int r){
        return asum(r)-asum(l);
    }
};

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n; cin >> n;
    string s; cin >> s;
    vector<int> pb(n), pw(n);
    int b = 0, w  = 0;
    for(int i = 0; i < 2*n; i++){
        if(s[i] == 'B') pb[b++] = i;
        else pw[w++] = i;
    }
    int fans = 0;
    for(int skip = 0; skip < n; skip++){
        b = 0, w = 0;
        bit ssum(2*n);
        int ans = 0;
        for(int i = 0; i < 2*n; i++){
            int goal = 0;
            if(s[i] == 'B'){
                goal = b-skip;
                if(goal < 0) goal += n;
                goal = pw[goal];
                b++;
            }else{
                goal = w+skip;
                if(goal >= n) goal -= n;
                goal = pb[goal];
                w++;
            }
            if(goal < i) continue;
            ans += ssum.sum(i,goal);
            ssum.add(goal);
        }
        fans = max(fans, ans);
    }
    cout << fans << "\n";
    return 0;
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct

Subtask #2
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	5 ms	204 KB	Output is correct
15	Correct	5 ms	316 KB	Output is correct
16	Correct	6 ms	312 KB	Output is correct
17	Correct	4 ms	204 KB	Output is correct
18	Correct	4 ms	204 KB	Output is correct
19	Correct	3 ms	204 KB	Output is correct
20	Correct	3 ms	204 KB	Output is correct
21	Correct	3 ms	204 KB	Output is correct
22	Correct	3 ms	312 KB	Output is correct
23	Correct	2 ms	204 KB	Output is correct
24	Correct	4 ms	308 KB	Output is correct
25	Correct	2 ms	204 KB	Output is correct
26	Correct	3 ms	204 KB	Output is correct
27	Correct	3 ms	312 KB	Output is correct
28	Correct	3 ms	312 KB	Output is correct
29	Correct	3 ms	204 KB	Output is correct
30	Correct	2 ms	204 KB	Output is correct
31	Correct	3 ms	204 KB	Output is correct
32	Correct	3 ms	204 KB	Output is correct
33	Correct	3 ms	204 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	5 ms	204 KB	Output is correct
15	Correct	5 ms	316 KB	Output is correct
16	Correct	6 ms	312 KB	Output is correct
17	Correct	4 ms	204 KB	Output is correct
18	Correct	4 ms	204 KB	Output is correct
19	Correct	3 ms	204 KB	Output is correct
20	Correct	3 ms	204 KB	Output is correct
21	Correct	3 ms	204 KB	Output is correct
22	Correct	3 ms	312 KB	Output is correct
23	Correct	2 ms	204 KB	Output is correct
24	Correct	4 ms	308 KB	Output is correct
25	Correct	2 ms	204 KB	Output is correct
26	Correct	3 ms	204 KB	Output is correct
27	Correct	3 ms	312 KB	Output is correct
28	Correct	3 ms	312 KB	Output is correct
29	Correct	3 ms	204 KB	Output is correct
30	Correct	2 ms	204 KB	Output is correct
31	Correct	3 ms	204 KB	Output is correct
32	Correct	3 ms	204 KB	Output is correct
33	Correct	3 ms	204 KB	Output is correct
34	Correct	179 ms	332 KB	Output is correct
35	Correct	181 ms	336 KB	Output is correct
36	Correct	175 ms	336 KB	Output is correct
37	Correct	165 ms	456 KB	Output is correct
38	Correct	114 ms	336 KB	Output is correct
39	Correct	126 ms	328 KB	Output is correct
40	Correct	112 ms	336 KB	Output is correct
41	Correct	119 ms	336 KB	Output is correct
42	Correct	184 ms	340 KB	Output is correct
43	Correct	134 ms	336 KB	Output is correct
44	Correct	124 ms	336 KB	Output is correct
45	Correct	125 ms	336 KB	Output is correct
46	Correct	142 ms	336 KB	Output is correct
47	Correct	140 ms	312 KB	Output is correct
48	Correct	129 ms	336 KB	Output is correct
49	Correct	109 ms	340 KB	Output is correct
50	Correct	130 ms	332 KB	Output is correct
51	Correct	138 ms	336 KB	Output is correct
52	Correct	149 ms	336 KB	Output is correct

Subtask #4
0.0 / 65.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	296 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	5 ms	204 KB	Output is correct
15	Correct	5 ms	316 KB	Output is correct
16	Correct	6 ms	312 KB	Output is correct
17	Correct	4 ms	204 KB	Output is correct
18	Correct	4 ms	204 KB	Output is correct
19	Correct	3 ms	204 KB	Output is correct
20	Correct	3 ms	204 KB	Output is correct
21	Correct	3 ms	204 KB	Output is correct
22	Correct	3 ms	312 KB	Output is correct
23	Correct	2 ms	204 KB	Output is correct
24	Correct	4 ms	308 KB	Output is correct
25	Correct	2 ms	204 KB	Output is correct
26	Correct	3 ms	204 KB	Output is correct
27	Correct	3 ms	312 KB	Output is correct
28	Correct	3 ms	312 KB	Output is correct
29	Correct	3 ms	204 KB	Output is correct
30	Correct	2 ms	204 KB	Output is correct
31	Correct	3 ms	204 KB	Output is correct
32	Correct	3 ms	204 KB	Output is correct
33	Correct	3 ms	204 KB	Output is correct
34	Correct	179 ms	332 KB	Output is correct
35	Correct	181 ms	336 KB	Output is correct
36	Correct	175 ms	336 KB	Output is correct
37	Correct	165 ms	456 KB	Output is correct
38	Correct	114 ms	336 KB	Output is correct
39	Correct	126 ms	328 KB	Output is correct
40	Correct	112 ms	336 KB	Output is correct
41	Correct	119 ms	336 KB	Output is correct
42	Correct	184 ms	340 KB	Output is correct
43	Correct	134 ms	336 KB	Output is correct
44	Correct	124 ms	336 KB	Output is correct
45	Correct	125 ms	336 KB	Output is correct
46	Correct	142 ms	336 KB	Output is correct
47	Correct	140 ms	312 KB	Output is correct
48	Correct	129 ms	336 KB	Output is correct
49	Correct	109 ms	340 KB	Output is correct
50	Correct	130 ms	332 KB	Output is correct
51	Correct	138 ms	336 KB	Output is correct
52	Correct	149 ms	336 KB	Output is correct
53	Execution timed out	2089 ms	4280 KB	Time limit exceeded
54	Halted	0 ms	0 KB	-

Submission #527641

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