oj.uz

Submission #871522

# Submission time Handle Problem Language Result Execution time Memory
871522 2023-11-11T04:51:32 Z resting Chorus (JOI23_chorus) C++17
87 / 100
 1018 ms 637756 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

struct segtree{
    int l, r, i; double m, b; int cnt;
    segtree* lc = 0, *rc = 0;
    segtree* getmem();
    segtree(int l, int r) : l(l), r(r), m(0), b(1e9), cnt(0){
        i = (l + r) / 2;
        if(l==r) return;
        lc = getmem(); *lc = segtree(l, i);
        rc = getmem(); *rc = segtree(i+1, r);
    };
    segtree() : segtree(-1, -1){};
    void u(double qm, double qb, int qcnt){
        if(qm * i + qb < m*i+b){
            swap(m, qm); swap(b, qb); swap(cnt, qcnt);
        }
        if(l == r) return;
        if(qm > m) lc->u(qm, qb, qcnt);
        else rc->u(qm, qb, qcnt);
    }
    pair<double, int> q(int qi){
        pair<double, int> cur = {m*qi+b, cnt};
        if(i == qi) return cur;
        if(qi < i) return min(cur, lc->q(qi));
        else return min(cur, rc->q(qi));
    }

} mem[(int)1e7]; int memsz = 0; 
segtree* segtree::getmem(){return &mem[memsz++];}


signed main(){
    int n, k; cin >> n >> k;
    string s; cin >> s;
    double l = 1e-6, r = 1e12/k;
    double res = 0, m = 0; 
    int cnt = 0;
    vector<int> b;
    for(int i = 0; i < 2*n; i++){
        if(s[i] == 'B') b.push_back(i);
    }
    while(r - l > 1e-5){
        m = sqrt(l*r);
        memsz = 0;
        segtree ac(0, n);
        double sl = 0;
        ac.u(0, 0, 0);
        int cnta = 0;
        double cur = 0;
        int funnynumber = 0;
        int cntactive = 0;
        for(int i = 0; i < 2 * n; i++){
            if(s[i] == 'A'){
                if(cntactive>0) funnynumber -= cntactive;
                cntactive++;
                if(cntactive>0) funnynumber += b[cnta] - i - cntactive;
                cnta++;
                cur += sl;
                auto tmp = ac.q(cnta); 
                tmp.first += m; tmp.second++;
                if(cnta == n) {
                    res = tmp.first + cur;
                    cnt = tmp.second;
                }
                ac.u(-cnta, tmp.first + (cnta)*cnta+funnynumber, tmp.second);
            }
            else{
                cntactive--;
                sl++;
            }
        }
        if(cnt <= k) r = m;
        else l = m;
    }
    cout<<(int)round(res-m*k)<<endl;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 626520 KB Output is correct
2 Correct 85 ms 626784 KB Output is correct
3 Correct 91 ms 626400 KB Output is correct
4 Correct 85 ms 626592 KB Output is correct
5 Correct 83 ms 626512 KB Output is correct
6 Correct 87 ms 626456 KB Output is correct
7 Correct 88 ms 626604 KB Output is correct
8 Correct 87 ms 626548 KB Output is correct
9 Correct 86 ms 626588 KB Output is correct
10 Correct 87 ms 626564 KB Output is correct
11 Correct 86 ms 626616 KB Output is correct
12 Correct 92 ms 626516 KB Output is correct
13 Correct 84 ms 626512 KB Output is correct
14 Correct 88 ms 626520 KB Output is correct
15 Correct 86 ms 626512 KB Output is correct
16 Correct 87 ms 626832 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 626520 KB Output is correct
2 Correct 85 ms 626784 KB Output is correct
3 Correct 91 ms 626400 KB Output is correct
4 Correct 85 ms 626592 KB Output is correct
5 Correct 83 ms 626512 KB Output is correct
6 Correct 87 ms 626456 KB Output is correct
7 Correct 88 ms 626604 KB Output is correct
8 Correct 87 ms 626548 KB Output is correct
9 Correct 86 ms 626588 KB Output is correct
10 Correct 87 ms 626564 KB Output is correct
11 Correct 86 ms 626616 KB Output is correct
12 Correct 92 ms 626516 KB Output is correct
13 Correct 84 ms 626512 KB Output is correct
14 Correct 88 ms 626520 KB Output is correct
15 Correct 86 ms 626512 KB Output is correct
16 Correct 87 ms 626832 KB Output is correct
17 Correct 85 ms 626592 KB Output is correct
18 Correct 85 ms 626516 KB Output is correct
19 Correct 87 ms 626512 KB Output is correct
20 Correct 94 ms 626612 KB Output is correct
21 Correct 87 ms 626540 KB Output is correct
22 Correct 86 ms 626440 KB Output is correct
23 Correct 87 ms 626536 KB Output is correct
24 Correct 85 ms 626456 KB Output is correct
25 Correct 83 ms 626436 KB Output is correct
26 Correct 85 ms 626512 KB Output is correct
27 Correct 88 ms 626460 KB Output is correct
28 Correct 85 ms 626516 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 626520 KB Output is correct
2 Correct 85 ms 626784 KB Output is correct
3 Correct 91 ms 626400 KB Output is correct
4 Correct 85 ms 626592 KB Output is correct
5 Correct 83 ms 626512 KB Output is correct
6 Correct 87 ms 626456 KB Output is correct
7 Correct 88 ms 626604 KB Output is correct
8 Correct 87 ms 626548 KB Output is correct
9 Correct 86 ms 626588 KB Output is correct
10 Correct 87 ms 626564 KB Output is correct
11 Correct 86 ms 626616 KB Output is correct
12 Correct 92 ms 626516 KB Output is correct
13 Correct 84 ms 626512 KB Output is correct
14 Correct 88 ms 626520 KB Output is correct
15 Correct 86 ms 626512 KB Output is correct
16 Correct 87 ms 626832 KB Output is correct
17 Correct 85 ms 626592 KB Output is correct
18 Correct 85 ms 626516 KB Output is correct
19 Correct 87 ms 626512 KB Output is correct
20 Correct 94 ms 626612 KB Output is correct
21 Correct 87 ms 626540 KB Output is correct
22 Correct 86 ms 626440 KB Output is correct
23 Correct 87 ms 626536 KB Output is correct
24 Correct 85 ms 626456 KB Output is correct
25 Correct 83 ms 626436 KB Output is correct
26 Correct 85 ms 626512 KB Output is correct
27 Correct 88 ms 626460 KB Output is correct
28 Correct 85 ms 626516 KB Output is correct
29 Correct 105 ms 626512 KB Output is correct
30 Correct 91 ms 626764 KB Output is correct
31 Correct 90 ms 626516 KB Output is correct
32 Correct 136 ms 626512 KB Output is correct
33 Correct 118 ms 626756 KB Output is correct
34 Correct 106 ms 626916 KB Output is correct
35 Correct 88 ms 626732 KB Output is correct
36 Correct 113 ms 626516 KB Output is correct
37 Correct 105 ms 626512 KB Output is correct
38 Correct 104 ms 627024 KB Output is correct
39 Correct 105 ms 626724 KB Output is correct
40 Correct 106 ms 626560 KB Output is correct
41 Correct 106 ms 626512 KB Output is correct
42 Correct 95 ms 626720 KB Output is correct

Subtask #4
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 626520 KB Output is correct
2 Correct 85 ms 626784 KB Output is correct
3 Correct 91 ms 626400 KB Output is correct
4 Correct 85 ms 626592 KB Output is correct
5 Correct 83 ms 626512 KB Output is correct
6 Correct 87 ms 626456 KB Output is correct
7 Correct 88 ms 626604 KB Output is correct
8 Correct 87 ms 626548 KB Output is correct
9 Correct 86 ms 626588 KB Output is correct
10 Correct 87 ms 626564 KB Output is correct
11 Correct 86 ms 626616 KB Output is correct
12 Correct 92 ms 626516 KB Output is correct
13 Correct 84 ms 626512 KB Output is correct
14 Correct 88 ms 626520 KB Output is correct
15 Correct 86 ms 626512 KB Output is correct
16 Correct 87 ms 626832 KB Output is correct
17 Correct 85 ms 626592 KB Output is correct
18 Correct 85 ms 626516 KB Output is correct
19 Correct 87 ms 626512 KB Output is correct
20 Correct 94 ms 626612 KB Output is correct
21 Correct 87 ms 626540 KB Output is correct
22 Correct 86 ms 626440 KB Output is correct
23 Correct 87 ms 626536 KB Output is correct
24 Correct 85 ms 626456 KB Output is correct
25 Correct 83 ms 626436 KB Output is correct
26 Correct 85 ms 626512 KB Output is correct
27 Correct 88 ms 626460 KB Output is correct
28 Correct 85 ms 626516 KB Output is correct
29 Correct 105 ms 626512 KB Output is correct
30 Correct 91 ms 626764 KB Output is correct
31 Correct 90 ms 626516 KB Output is correct
32 Correct 136 ms 626512 KB Output is correct
33 Correct 118 ms 626756 KB Output is correct
34 Correct 106 ms 626916 KB Output is correct
35 Correct 88 ms 626732 KB Output is correct
36 Correct 113 ms 626516 KB Output is correct
37 Correct 105 ms 626512 KB Output is correct
38 Correct 104 ms 627024 KB Output is correct
39 Correct 105 ms 626724 KB Output is correct
40 Correct 106 ms 626560 KB Output is correct
41 Correct 106 ms 626512 KB Output is correct
42 Correct 95 ms 626720 KB Output is correct
43 Correct 135 ms 627404 KB Output is correct
44 Correct 513 ms 627816 KB Output is correct
45 Correct 165 ms 627868 KB Output is correct
46 Correct 829 ms 627916 KB Output is correct
47 Correct 800 ms 627804 KB Output is correct
48 Correct 515 ms 627804 KB Output is correct
49 Correct 167 ms 627800 KB Output is correct
50 Correct 1018 ms 627816 KB Output is correct
51 Correct 755 ms 627800 KB Output is correct
52 Correct 163 ms 627804 KB Output is correct
53 Correct 554 ms 627804 KB Output is correct
54 Correct 639 ms 627800 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 626520 KB Output is correct
2 Correct 85 ms 626784 KB Output is correct
3 Correct 91 ms 626400 KB Output is correct
4 Correct 85 ms 626592 KB Output is correct
5 Correct 83 ms 626512 KB Output is correct
6 Correct 87 ms 626456 KB Output is correct
7 Correct 88 ms 626604 KB Output is correct
8 Correct 87 ms 626548 KB Output is correct
9 Correct 86 ms 626588 KB Output is correct
10 Correct 87 ms 626564 KB Output is correct
11 Correct 86 ms 626616 KB Output is correct
12 Correct 92 ms 626516 KB Output is correct
13 Correct 84 ms 626512 KB Output is correct
14 Correct 88 ms 626520 KB Output is correct
15 Correct 86 ms 626512 KB Output is correct
16 Correct 87 ms 626832 KB Output is correct
17 Correct 85 ms 626592 KB Output is correct
18 Correct 85 ms 626516 KB Output is correct
19 Correct 87 ms 626512 KB Output is correct
20 Correct 94 ms 626612 KB Output is correct
21 Correct 87 ms 626540 KB Output is correct
22 Correct 86 ms 626440 KB Output is correct
23 Correct 87 ms 626536 KB Output is correct
24 Correct 85 ms 626456 KB Output is correct
25 Correct 83 ms 626436 KB Output is correct
26 Correct 85 ms 626512 KB Output is correct
27 Correct 88 ms 626460 KB Output is correct
28 Correct 85 ms 626516 KB Output is correct
29 Correct 105 ms 626512 KB Output is correct
30 Correct 91 ms 626764 KB Output is correct
31 Correct 90 ms 626516 KB Output is correct
32 Correct 136 ms 626512 KB Output is correct
33 Correct 118 ms 626756 KB Output is correct
34 Correct 106 ms 626916 KB Output is correct
35 Correct 88 ms 626732 KB Output is correct
36 Correct 113 ms 626516 KB Output is correct
37 Correct 105 ms 626512 KB Output is correct
38 Correct 104 ms 627024 KB Output is correct
39 Correct 105 ms 626724 KB Output is correct
40 Correct 106 ms 626560 KB Output is correct
41 Correct 106 ms 626512 KB Output is correct
42 Correct 95 ms 626720 KB Output is correct
43 Correct 135 ms 627404 KB Output is correct
44 Correct 513 ms 627816 KB Output is correct
45 Correct 165 ms 627868 KB Output is correct
46 Correct 829 ms 627916 KB Output is correct
47 Correct 800 ms 627804 KB Output is correct
48 Correct 515 ms 627804 KB Output is correct
49 Correct 167 ms 627800 KB Output is correct
50 Correct 1018 ms 627816 KB Output is correct
51 Correct 755 ms 627800 KB Output is correct
52 Correct 163 ms 627804 KB Output is correct
53 Correct 554 ms 627804 KB Output is correct
54 Correct 639 ms 627800 KB Output is correct
55 Incorrect 708 ms 637756 KB Output isn't correct
56 Halted 0 ms 0 KB -