oj.uz

답안 #868398

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
868398 2023-10-31T11:14:54 Z toma_ariciu Arranging Shoes (IOI19_shoes) C++17
100 / 100
 113 ms 140628 KB 
#include "shoes.h"
#include <algorithm>
#include <iostream>
#include <queue>

using namespace std;

class FenwickTree {
private:
    int sz;
    vector <int> v;
    int lsb(int x) {
        return (x & (-x));
    }
public:
    FenwickTree(int n) {
        sz = n;
        v.resize(sz + 1);
    }
    void update(int poz) {
        for (int i = poz; i <= sz; i += lsb(i)) {
            v[i]++;
        }
    }
    int query(int poz) {
        int ans = 0;
        for (int i = poz; i; i -= lsb(i)) {
            ans += v[i];
        }
        return ans;
    }
};

int n;

long long computeInversions(vector <int> v) {
    long long inv = 0;
    FenwickTree aib(2 * n);
    for (int i = 2 * n - 1; i >= 0; i--) {
        inv += aib.query(v[i]);
        aib.update(v[i] + 1);
    }
    return inv;
}


long long count_swaps(vector<int> s) {
    n = (int) s.size() / 2;
    vector <int> v(2 * n);
    vector <queue <int>> q(2 * n + 1);
    int p = 0;
    for (int i = 0; i < 2 * n; i++) {
        if (s[i] > 0) {
            if (!q[n + s[i]].empty()) {
                int poz = q[n + s[i]].front();
                q[n + s[i]].pop();
                v[poz] = p;
                v[i] = p + 1;
                p += 2;
            }
            else {
                q[s[i]].push(i);
            }
        }
        else {
            if (!q[-s[i]].empty()) {
                int poz = q[-s[i]].front();
                q[-s[i]].pop();
                v[poz] = p + 1;
                v[i] = p;
                p += 2;
            }
            else {
                q[n - s[i]].push(i);
            }
        }
    }
    return computeInversions(v);
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 856 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 600 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 1 ms 1628 KB Output is correct
19 Correct 1 ms 1624 KB Output is correct
20 Correct 8 ms 14172 KB Output is correct
21 Correct 8 ms 14172 KB Output is correct
22 Correct 82 ms 138912 KB Output is correct
23 Correct 78 ms 138876 KB Output is correct
24 Correct 89 ms 138828 KB Output is correct
25 Correct 84 ms 139412 KB Output is correct
26 Correct 81 ms 138936 KB Output is correct
27 Correct 77 ms 138956 KB Output is correct
28 Correct 76 ms 139300 KB Output is correct
29 Correct 80 ms 139344 KB Output is correct
30 Correct 77 ms 139348 KB Output is correct
31 Correct 82 ms 138836 KB Output is correct
32 Correct 77 ms 139208 KB Output is correct
33 Correct 81 ms 139192 KB Output is correct
34 Correct 79 ms 139340 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 76 ms 139204 KB Output is correct
38 Correct 76 ms 139344 KB Output is correct
39 Correct 78 ms 139300 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 94 ms 138944 KB Output is correct
6 Correct 83 ms 138836 KB Output is correct
7 Correct 100 ms 138832 KB Output is correct
8 Correct 82 ms 139448 KB Output is correct
9 Correct 94 ms 138976 KB Output is correct
10 Correct 89 ms 138928 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 856 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 600 KB Output is correct
37 Correct 1 ms 504 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 604 KB Output is correct
41 Correct 1 ms 1628 KB Output is correct
42 Correct 1 ms 1628 KB Output is correct
43 Correct 2 ms 1628 KB Output is correct
44 Correct 1 ms 1628 KB Output is correct
45 Correct 1 ms 1732 KB Output is correct
46 Correct 1 ms 1628 KB Output is correct
47 Correct 1 ms 1628 KB Output is correct
48 Correct 1 ms 1624 KB Output is correct
49 Correct 1 ms 1628 KB Output is correct
50 Correct 1 ms 1628 KB Output is correct
51 Correct 2 ms 1820 KB Output is correct
52 Correct 2 ms 1628 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 856 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 600 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 600 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 604 KB Output is correct
52 Correct 1 ms 1628 KB Output is correct
53 Correct 1 ms 1624 KB Output is correct
54 Correct 8 ms 14172 KB Output is correct
55 Correct 8 ms 14172 KB Output is correct
56 Correct 82 ms 138912 KB Output is correct
57 Correct 78 ms 138876 KB Output is correct
58 Correct 89 ms 138828 KB Output is correct
59 Correct 84 ms 139412 KB Output is correct
60 Correct 81 ms 138936 KB Output is correct
61 Correct 77 ms 138956 KB Output is correct
62 Correct 76 ms 139300 KB Output is correct
63 Correct 80 ms 139344 KB Output is correct
64 Correct 77 ms 139348 KB Output is correct
65 Correct 82 ms 138836 KB Output is correct
66 Correct 77 ms 139208 KB Output is correct
67 Correct 81 ms 139192 KB Output is correct
68 Correct 79 ms 139340 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 76 ms 139204 KB Output is correct
72 Correct 76 ms 139344 KB Output is correct
73 Correct 78 ms 139300 KB Output is correct
74 Correct 0 ms 600 KB Output is correct
75 Correct 0 ms 344 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 94 ms 138944 KB Output is correct
79 Correct 83 ms 138836 KB Output is correct
80 Correct 100 ms 138832 KB Output is correct
81 Correct 82 ms 139448 KB Output is correct
82 Correct 94 ms 138976 KB Output is correct
83 Correct 89 ms 138928 KB Output is correct
84 Correct 1 ms 504 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 0 ms 604 KB Output is correct
88 Correct 1 ms 1628 KB Output is correct
89 Correct 1 ms 1628 KB Output is correct
90 Correct 2 ms 1628 KB Output is correct
91 Correct 1 ms 1628 KB Output is correct
92 Correct 1 ms 1732 KB Output is correct
93 Correct 1 ms 1628 KB Output is correct
94 Correct 1 ms 1628 KB Output is correct
95 Correct 1 ms 1624 KB Output is correct
96 Correct 1 ms 1628 KB Output is correct
97 Correct 1 ms 1628 KB Output is correct
98 Correct 2 ms 1820 KB Output is correct
99 Correct 2 ms 1628 KB Output is correct
100 Correct 1 ms 1628 KB Output is correct
101 Correct 8 ms 14304 KB Output is correct
102 Correct 9 ms 14424 KB Output is correct
103 Correct 113 ms 140232 KB Output is correct
104 Correct 97 ms 140200 KB Output is correct
105 Correct 95 ms 140196 KB Output is correct
106 Correct 98 ms 140200 KB Output is correct
107 Correct 90 ms 140088 KB Output is correct
108 Correct 98 ms 140192 KB Output is correct
109 Correct 78 ms 140628 KB Output is correct
110 Correct 79 ms 140448 KB Output is correct
111 Correct 100 ms 140372 KB Output is correct
112 Correct 93 ms 140036 KB Output is correct
113 Correct 87 ms 140112 KB Output is correct
114 Correct 96 ms 140116 KB Output is correct
115 Correct 98 ms 140176 KB Output is correct