oj.uz

Submission #147037

# Submission time Handle Problem Language Result Execution time Memory
147037 2019-08-27T08:36:53 Z Denisov Arranging Shoes (IOI19_shoes) C++14
100 / 100
 119 ms 21236 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
vector <int> t, used;
inline static int f (int i) {
    return i | (i + 1);
}
inline static int g (int i) {
    return i & (i + 1);
}
inline void upd (int i, int x) {
    for (; i < (int)t.size(); i = f(i)) t[i] += x;
}
inline int sum (int i) {
    int res = 0;
    for (; i >= 0; i = g(i) - 1) res += t[i];
    return res;
}
inline int sum (int l, int r) {
    return sum(r) - sum(l - 1);
}
vector<vector <int> > pos;
inline int get_pos (int x, int n) {
    if (pos[-x + n].empty()) {
        cout << "HOW";
        exit(0);
    }
    return pos[-x + n].back();
}
ll count_swaps(vector<int> a) {
    ll ans = 0; int n = (int)a.size();
    t.resize(n);
    pos.resize(n + n + 1);
    used.resize(n + n + 1);
    for (int i = 0; i < n; i++) {
        pos[a[i] + n].push_back(i);
    }
    for (auto &i : pos) reverse(i.begin(), i.end());
    for (int i = 0; i < n; i++) {
        if (used[a[i] + n] > 0) {
            --used[a[i] + n];
            continue;
        }
        int cur = i + sum(i), x = get_pos(a[i], n);
        int to = x + sum(x);
        ans += to - cur - 1 + bool(a[i] > 0);
        upd(i, 1);
        upd(x, -1);
        pos[a[i] + n].pop_back();
        pos[-a[i] + n].pop_back();
        ++used[-a[i] + n];
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 252 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 424 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 380 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 252 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 392 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 252 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 7 ms 1912 KB Output is correct
21 Correct 7 ms 1912 KB Output is correct
22 Correct 53 ms 15900 KB Output is correct
23 Correct 47 ms 15980 KB Output is correct
24 Correct 53 ms 15860 KB Output is correct
25 Correct 48 ms 15856 KB Output is correct
26 Correct 53 ms 15984 KB Output is correct
27 Correct 47 ms 15732 KB Output is correct
28 Correct 51 ms 16112 KB Output is correct
29 Correct 50 ms 16112 KB Output is correct
30 Correct 50 ms 16112 KB Output is correct
31 Correct 58 ms 15756 KB Output is correct
32 Correct 69 ms 16112 KB Output is correct
33 Correct 49 ms 15856 KB Output is correct
34 Correct 50 ms 16112 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 51 ms 16112 KB Output is correct
38 Correct 50 ms 16112 KB Output is correct
39 Correct 50 ms 16112 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 90 ms 21112 KB Output is correct
6 Correct 71 ms 16404 KB Output is correct
7 Correct 86 ms 21112 KB Output is correct
8 Correct 54 ms 15880 KB Output is correct
9 Correct 89 ms 21112 KB Output is correct
10 Correct 91 ms 18040 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 252 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 424 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 380 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 252 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 392 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 252 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 256 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 3 ms 504 KB Output is correct
44 Correct 3 ms 632 KB Output is correct
45 Correct 3 ms 504 KB Output is correct
46 Correct 3 ms 508 KB Output is correct
47 Correct 3 ms 504 KB Output is correct
48 Correct 3 ms 504 KB Output is correct
49 Correct 3 ms 504 KB Output is correct
50 Correct 2 ms 504 KB Output is correct
51 Correct 3 ms 504 KB Output is correct
52 Correct 3 ms 504 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 252 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 424 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 380 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 252 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 392 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 252 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 256 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 380 KB Output is correct
41 Correct 2 ms 256 KB Output is correct
42 Correct 2 ms 256 KB Output is correct
43 Correct 2 ms 256 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 256 KB Output is correct
48 Correct 2 ms 256 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 3 ms 504 KB Output is correct
53 Correct 3 ms 504 KB Output is correct
54 Correct 7 ms 1912 KB Output is correct
55 Correct 7 ms 1912 KB Output is correct
56 Correct 53 ms 15900 KB Output is correct
57 Correct 47 ms 15980 KB Output is correct
58 Correct 53 ms 15860 KB Output is correct
59 Correct 48 ms 15856 KB Output is correct
60 Correct 53 ms 15984 KB Output is correct
61 Correct 47 ms 15732 KB Output is correct
62 Correct 51 ms 16112 KB Output is correct
63 Correct 50 ms 16112 KB Output is correct
64 Correct 50 ms 16112 KB Output is correct
65 Correct 58 ms 15756 KB Output is correct
66 Correct 69 ms 16112 KB Output is correct
67 Correct 49 ms 15856 KB Output is correct
68 Correct 50 ms 16112 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 376 KB Output is correct
71 Correct 51 ms 16112 KB Output is correct
72 Correct 50 ms 16112 KB Output is correct
73 Correct 50 ms 16112 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 90 ms 21112 KB Output is correct
79 Correct 71 ms 16404 KB Output is correct
80 Correct 86 ms 21112 KB Output is correct
81 Correct 54 ms 15880 KB Output is correct
82 Correct 89 ms 21112 KB Output is correct
83 Correct 91 ms 18040 KB Output is correct
84 Correct 2 ms 256 KB Output is correct
85 Correct 2 ms 256 KB Output is correct
86 Correct 2 ms 376 KB Output is correct
87 Correct 2 ms 376 KB Output is correct
88 Correct 3 ms 504 KB Output is correct
89 Correct 3 ms 504 KB Output is correct
90 Correct 3 ms 504 KB Output is correct
91 Correct 3 ms 632 KB Output is correct
92 Correct 3 ms 504 KB Output is correct
93 Correct 3 ms 508 KB Output is correct
94 Correct 3 ms 504 KB Output is correct
95 Correct 3 ms 504 KB Output is correct
96 Correct 3 ms 504 KB Output is correct
97 Correct 2 ms 504 KB Output is correct
98 Correct 3 ms 504 KB Output is correct
99 Correct 3 ms 504 KB Output is correct
100 Correct 3 ms 504 KB Output is correct
101 Correct 10 ms 2296 KB Output is correct
102 Correct 9 ms 1912 KB Output is correct
103 Correct 119 ms 21236 KB Output is correct
104 Correct 104 ms 21092 KB Output is correct
105 Correct 110 ms 18420 KB Output is correct
106 Correct 87 ms 21112 KB Output is correct
107 Correct 78 ms 16504 KB Output is correct
108 Correct 81 ms 16760 KB Output is correct
109 Correct 52 ms 16112 KB Output is correct
110 Correct 50 ms 16104 KB Output is correct
111 Correct 92 ms 20444 KB Output is correct
112 Correct 106 ms 19800 KB Output is correct
113 Correct 77 ms 16624 KB Output is correct
114 Correct 83 ms 21112 KB Output is correct
115 Correct 88 ms 21112 KB Output is correct