oj.uz

Submission #617180

# Submission time Handle Problem Language Result Execution time Memory
617180 2022-08-01T09:22:13 Z AmirElarbi Monochrome Points (JOI20_monochrome) C++14
35 / 100
 1801 ms 8316 KB 
#include <bits/stdc++.h>
#define vi vector<int>
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define pll pair<ll,ll>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 2e9+5
#define eps 1e-7
#define eps1 1e-25
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 1e5+5
#define V 450
using namespace std;
const int MOD = 1e9;
const int nax = 2e3+5;
const int lg = 20;
int st[nax*8];
void update(int v, int l, int r, int pos, int val){
    if(pos > r || pos < l) return;
    if(l == r){
        st[v] += val;
        return;
    }
    int md = (l+r)/2;
    update(v*2, l, md, pos, val);
    update(v*2+1, md+1, r, pos, val);
    st[v] = st[v*2]+st[v*2+1];
}
int query(int v, int l, int r, int i, int j){
    if(i > r || j < l) return 0;
    if(i <= l && r <= j) return st[v];
    int md = (l+r)/2;
    return query(v*2, l, md, i, j)+ query(v*2+1, md+1, r, i, j);
}
int main() {
    optimise;
    int n;
    cin >> n;
    string s;
    cin >> s;
    vi blck, wht;
    for (int i = 0; i < n*2; ++i)
    {
        if(s[i] == 'B') blck.pb(i);
        if(s[i] == 'W') wht.pb(i);
    }
    int mx = 0;
    for (int i = 0; i < n; ++i)
    {
        int res = 0;
        memset(st, 0, sizeof st);
        vii qr;
        for (int j = 0; j < n; ++j)
        {
            int ind = (j+i)%n;
            int a = blck[j], b = wht[ind];
            if(a > b) swap(a,b);
            qr.pb({a,b});
        }
        sort(qr.begin(), qr.end());
        reverse(qr.begin(), qr.end());
        for(auto x : qr){
            res += query(1,0,2*n-1, x.fi, x.se);
            update(1,0,2*n-1, x.fi, 1);
            update(1,0,2*n-1, x.se, -1);
        }
        mx = max(res, mx);
    }
    cout << mx << endl;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 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 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 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 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 35 ms 384 KB Output is correct
15 Correct 34 ms 340 KB Output is correct
16 Correct 33 ms 340 KB Output is correct
17 Correct 32 ms 340 KB Output is correct
18 Correct 24 ms 392 KB Output is correct
19 Correct 26 ms 400 KB Output is correct
20 Correct 27 ms 468 KB Output is correct
21 Correct 23 ms 340 KB Output is correct
22 Correct 27 ms 340 KB Output is correct
23 Correct 13 ms 340 KB Output is correct
24 Correct 24 ms 340 KB Output is correct
25 Correct 22 ms 388 KB Output is correct
26 Correct 25 ms 392 KB Output is correct
27 Correct 30 ms 392 KB Output is correct
28 Correct 30 ms 372 KB Output is correct
29 Correct 25 ms 340 KB Output is correct
30 Correct 22 ms 392 KB Output is correct
31 Correct 29 ms 376 KB Output is correct
32 Correct 32 ms 384 KB Output is correct
33 Correct 31 ms 340 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 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 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 35 ms 384 KB Output is correct
15 Correct 34 ms 340 KB Output is correct
16 Correct 33 ms 340 KB Output is correct
17 Correct 32 ms 340 KB Output is correct
18 Correct 24 ms 392 KB Output is correct
19 Correct 26 ms 400 KB Output is correct
20 Correct 27 ms 468 KB Output is correct
21 Correct 23 ms 340 KB Output is correct
22 Correct 27 ms 340 KB Output is correct
23 Correct 13 ms 340 KB Output is correct
24 Correct 24 ms 340 KB Output is correct
25 Correct 22 ms 388 KB Output is correct
26 Correct 25 ms 392 KB Output is correct
27 Correct 30 ms 392 KB Output is correct
28 Correct 30 ms 372 KB Output is correct
29 Correct 25 ms 340 KB Output is correct
30 Correct 22 ms 392 KB Output is correct
31 Correct 29 ms 376 KB Output is correct
32 Correct 32 ms 384 KB Output is correct
33 Correct 31 ms 340 KB Output is correct
34 Correct 1665 ms 416 KB Output is correct
35 Correct 1798 ms 424 KB Output is correct
36 Correct 1623 ms 424 KB Output is correct
37 Correct 1501 ms 424 KB Output is correct
38 Correct 1419 ms 428 KB Output is correct
39 Correct 1595 ms 424 KB Output is correct
40 Correct 1345 ms 420 KB Output is correct
41 Correct 1349 ms 432 KB Output is correct
42 Correct 1637 ms 424 KB Output is correct
43 Correct 1801 ms 416 KB Output is correct
44 Correct 1552 ms 340 KB Output is correct
45 Correct 1468 ms 420 KB Output is correct
46 Correct 1608 ms 420 KB Output is correct
47 Correct 1667 ms 416 KB Output is correct
48 Correct 1643 ms 420 KB Output is correct
49 Correct 1386 ms 420 KB Output is correct
50 Correct 1569 ms 420 KB Output is correct
51 Correct 1666 ms 416 KB Output is correct
52 Correct 1733 ms 428 KB Output is correct

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 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 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 35 ms 384 KB Output is correct
15 Correct 34 ms 340 KB Output is correct
16 Correct 33 ms 340 KB Output is correct
17 Correct 32 ms 340 KB Output is correct
18 Correct 24 ms 392 KB Output is correct
19 Correct 26 ms 400 KB Output is correct
20 Correct 27 ms 468 KB Output is correct
21 Correct 23 ms 340 KB Output is correct
22 Correct 27 ms 340 KB Output is correct
23 Correct 13 ms 340 KB Output is correct
24 Correct 24 ms 340 KB Output is correct
25 Correct 22 ms 388 KB Output is correct
26 Correct 25 ms 392 KB Output is correct
27 Correct 30 ms 392 KB Output is correct
28 Correct 30 ms 372 KB Output is correct
29 Correct 25 ms 340 KB Output is correct
30 Correct 22 ms 392 KB Output is correct
31 Correct 29 ms 376 KB Output is correct
32 Correct 32 ms 384 KB Output is correct
33 Correct 31 ms 340 KB Output is correct
34 Correct 1665 ms 416 KB Output is correct
35 Correct 1798 ms 424 KB Output is correct
36 Correct 1623 ms 424 KB Output is correct
37 Correct 1501 ms 424 KB Output is correct
38 Correct 1419 ms 428 KB Output is correct
39 Correct 1595 ms 424 KB Output is correct
40 Correct 1345 ms 420 KB Output is correct
41 Correct 1349 ms 432 KB Output is correct
42 Correct 1637 ms 424 KB Output is correct
43 Correct 1801 ms 416 KB Output is correct
44 Correct 1552 ms 340 KB Output is correct
45 Correct 1468 ms 420 KB Output is correct
46 Correct 1608 ms 420 KB Output is correct
47 Correct 1667 ms 416 KB Output is correct
48 Correct 1643 ms 420 KB Output is correct
49 Correct 1386 ms 420 KB Output is correct
50 Correct 1569 ms 420 KB Output is correct
51 Correct 1666 ms 416 KB Output is correct
52 Correct 1733 ms 428 KB Output is correct
53 Runtime error 24 ms 8316 KB Execution killed with signal 11
54 Halted 0 ms 0 KB -