oj.uz

답안 #871526

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
871526 2023-11-11T04:53:44 Z resting Chorus (JOI23_chorus) C++17
61 / 100
 7000 ms 627804 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-7, r = 1e13/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-7){
        if(r-l<1e2) m = (l+r)/2;
        else 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

# 결과 실행 시간 메모리 Grader output
1 Correct 85 ms 626412 KB Output is correct
2 Correct 83 ms 626548 KB Output is correct
3 Correct 84 ms 626404 KB Output is correct
4 Correct 87 ms 626516 KB Output is correct
5 Correct 84 ms 626476 KB Output is correct
6 Correct 82 ms 626412 KB Output is correct
7 Correct 83 ms 626512 KB Output is correct
8 Correct 85 ms 626508 KB Output is correct
9 Correct 84 ms 626548 KB Output is correct
10 Correct 85 ms 626524 KB Output is correct
11 Correct 84 ms 626512 KB Output is correct
12 Correct 86 ms 626516 KB Output is correct
13 Correct 86 ms 626512 KB Output is correct
14 Correct 86 ms 626396 KB Output is correct
15 Correct 83 ms 626412 KB Output is correct
16 Correct 85 ms 626572 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 85 ms 626412 KB Output is correct
2 Correct 83 ms 626548 KB Output is correct
3 Correct 84 ms 626404 KB Output is correct
4 Correct 87 ms 626516 KB Output is correct
5 Correct 84 ms 626476 KB Output is correct
6 Correct 82 ms 626412 KB Output is correct
7 Correct 83 ms 626512 KB Output is correct
8 Correct 85 ms 626508 KB Output is correct
9 Correct 84 ms 626548 KB Output is correct
10 Correct 85 ms 626524 KB Output is correct
11 Correct 84 ms 626512 KB Output is correct
12 Correct 86 ms 626516 KB Output is correct
13 Correct 86 ms 626512 KB Output is correct
14 Correct 86 ms 626396 KB Output is correct
15 Correct 83 ms 626412 KB Output is correct
16 Correct 85 ms 626572 KB Output is correct
17 Correct 86 ms 626516 KB Output is correct
18 Correct 89 ms 626500 KB Output is correct
19 Correct 89 ms 626516 KB Output is correct
20 Correct 88 ms 626964 KB Output is correct
21 Correct 85 ms 626628 KB Output is correct
22 Correct 88 ms 626436 KB Output is correct
23 Correct 87 ms 626516 KB Output is correct
24 Correct 86 ms 626512 KB Output is correct
25 Correct 88 ms 626436 KB Output is correct
26 Correct 86 ms 626508 KB Output is correct
27 Correct 89 ms 626628 KB Output is correct
28 Correct 86 ms 626516 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 85 ms 626412 KB Output is correct
2 Correct 83 ms 626548 KB Output is correct
3 Correct 84 ms 626404 KB Output is correct
4 Correct 87 ms 626516 KB Output is correct
5 Correct 84 ms 626476 KB Output is correct
6 Correct 82 ms 626412 KB Output is correct
7 Correct 83 ms 626512 KB Output is correct
8 Correct 85 ms 626508 KB Output is correct
9 Correct 84 ms 626548 KB Output is correct
10 Correct 85 ms 626524 KB Output is correct
11 Correct 84 ms 626512 KB Output is correct
12 Correct 86 ms 626516 KB Output is correct
13 Correct 86 ms 626512 KB Output is correct
14 Correct 86 ms 626396 KB Output is correct
15 Correct 83 ms 626412 KB Output is correct
16 Correct 85 ms 626572 KB Output is correct
17 Correct 86 ms 626516 KB Output is correct
18 Correct 89 ms 626500 KB Output is correct
19 Correct 89 ms 626516 KB Output is correct
20 Correct 88 ms 626964 KB Output is correct
21 Correct 85 ms 626628 KB Output is correct
22 Correct 88 ms 626436 KB Output is correct
23 Correct 87 ms 626516 KB Output is correct
24 Correct 86 ms 626512 KB Output is correct
25 Correct 88 ms 626436 KB Output is correct
26 Correct 86 ms 626508 KB Output is correct
27 Correct 89 ms 626628 KB Output is correct
28 Correct 86 ms 626516 KB Output is correct
29 Correct 109 ms 626628 KB Output is correct
30 Correct 108 ms 626512 KB Output is correct
31 Correct 108 ms 626512 KB Output is correct
32 Correct 116 ms 626512 KB Output is correct
33 Correct 119 ms 626512 KB Output is correct
34 Correct 108 ms 626528 KB Output is correct
35 Correct 109 ms 626676 KB Output is correct
36 Correct 119 ms 626508 KB Output is correct
37 Correct 117 ms 626588 KB Output is correct
38 Correct 114 ms 626756 KB Output is correct
39 Correct 119 ms 626512 KB Output is correct
40 Correct 111 ms 626512 KB Output is correct
41 Correct 110 ms 626756 KB Output is correct
42 Correct 106 ms 626608 KB Output is correct

Subtask #4
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 85 ms 626412 KB Output is correct
2 Correct 83 ms 626548 KB Output is correct
3 Correct 84 ms 626404 KB Output is correct
4 Correct 87 ms 626516 KB Output is correct
5 Correct 84 ms 626476 KB Output is correct
6 Correct 82 ms 626412 KB Output is correct
7 Correct 83 ms 626512 KB Output is correct
8 Correct 85 ms 626508 KB Output is correct
9 Correct 84 ms 626548 KB Output is correct
10 Correct 85 ms 626524 KB Output is correct
11 Correct 84 ms 626512 KB Output is correct
12 Correct 86 ms 626516 KB Output is correct
13 Correct 86 ms 626512 KB Output is correct
14 Correct 86 ms 626396 KB Output is correct
15 Correct 83 ms 626412 KB Output is correct
16 Correct 85 ms 626572 KB Output is correct
17 Correct 86 ms 626516 KB Output is correct
18 Correct 89 ms 626500 KB Output is correct
19 Correct 89 ms 626516 KB Output is correct
20 Correct 88 ms 626964 KB Output is correct
21 Correct 85 ms 626628 KB Output is correct
22 Correct 88 ms 626436 KB Output is correct
23 Correct 87 ms 626516 KB Output is correct
24 Correct 86 ms 626512 KB Output is correct
25 Correct 88 ms 626436 KB Output is correct
26 Correct 86 ms 626508 KB Output is correct
27 Correct 89 ms 626628 KB Output is correct
28 Correct 86 ms 626516 KB Output is correct
29 Correct 109 ms 626628 KB Output is correct
30 Correct 108 ms 626512 KB Output is correct
31 Correct 108 ms 626512 KB Output is correct
32 Correct 116 ms 626512 KB Output is correct
33 Correct 119 ms 626512 KB Output is correct
34 Correct 108 ms 626528 KB Output is correct
35 Correct 109 ms 626676 KB Output is correct
36 Correct 119 ms 626508 KB Output is correct
37 Correct 117 ms 626588 KB Output is correct
38 Correct 114 ms 626756 KB Output is correct
39 Correct 119 ms 626512 KB Output is correct
40 Correct 111 ms 626512 KB Output is correct
41 Correct 110 ms 626756 KB Output is correct
42 Correct 106 ms 626608 KB Output is correct
43 Correct 379 ms 627424 KB Output is correct
44 Correct 612 ms 627804 KB Output is correct
45 Correct 600 ms 627800 KB Output is correct
46 Execution timed out 7032 ms 627800 KB Time limit exceeded
47 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 85 ms 626412 KB Output is correct
2 Correct 83 ms 626548 KB Output is correct
3 Correct 84 ms 626404 KB Output is correct
4 Correct 87 ms 626516 KB Output is correct
5 Correct 84 ms 626476 KB Output is correct
6 Correct 82 ms 626412 KB Output is correct
7 Correct 83 ms 626512 KB Output is correct
8 Correct 85 ms 626508 KB Output is correct
9 Correct 84 ms 626548 KB Output is correct
10 Correct 85 ms 626524 KB Output is correct
11 Correct 84 ms 626512 KB Output is correct
12 Correct 86 ms 626516 KB Output is correct
13 Correct 86 ms 626512 KB Output is correct
14 Correct 86 ms 626396 KB Output is correct
15 Correct 83 ms 626412 KB Output is correct
16 Correct 85 ms 626572 KB Output is correct
17 Correct 86 ms 626516 KB Output is correct
18 Correct 89 ms 626500 KB Output is correct
19 Correct 89 ms 626516 KB Output is correct
20 Correct 88 ms 626964 KB Output is correct
21 Correct 85 ms 626628 KB Output is correct
22 Correct 88 ms 626436 KB Output is correct
23 Correct 87 ms 626516 KB Output is correct
24 Correct 86 ms 626512 KB Output is correct
25 Correct 88 ms 626436 KB Output is correct
26 Correct 86 ms 626508 KB Output is correct
27 Correct 89 ms 626628 KB Output is correct
28 Correct 86 ms 626516 KB Output is correct
29 Correct 109 ms 626628 KB Output is correct
30 Correct 108 ms 626512 KB Output is correct
31 Correct 108 ms 626512 KB Output is correct
32 Correct 116 ms 626512 KB Output is correct
33 Correct 119 ms 626512 KB Output is correct
34 Correct 108 ms 626528 KB Output is correct
35 Correct 109 ms 626676 KB Output is correct
36 Correct 119 ms 626508 KB Output is correct
37 Correct 117 ms 626588 KB Output is correct
38 Correct 114 ms 626756 KB Output is correct
39 Correct 119 ms 626512 KB Output is correct
40 Correct 111 ms 626512 KB Output is correct
41 Correct 110 ms 626756 KB Output is correct
42 Correct 106 ms 626608 KB Output is correct
43 Correct 379 ms 627424 KB Output is correct
44 Correct 612 ms 627804 KB Output is correct
45 Correct 600 ms 627800 KB Output is correct
46 Execution timed out 7032 ms 627800 KB Time limit exceeded
47 Halted 0 ms 0 KB -