oj.uz

Submission #155455

# Submission time Handle Problem Language Result Execution time Memory
155455 2019-09-28T11:56:47 Z WLZ Arranging Shoes (IOI19_shoes) C++17
100 / 100
 230 ms 140000 KB 
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;

template <typename T>
class fenwick {
  public:
  vector<T> fenw;
  int n;
 
  fenwick(int _n) : n(_n) {
    fenw.resize(n);
  }
 
  void modify(int x, T val) {
    for (; x < n; x += x & -x) {
      fenw[x] += val;
    }
  }
 
  T get(int x) {
    T ans{};
    for (; x > 0; x -= x & -x) {
      ans += fenw[x];
    }
    return ans;
  }
};

long long count_swaps(vector<int> s) {
  int n = (int) s.size() / 2, cur = 0;
  vector<int> a(2 * n);
  vector< queue<int> > q(2 * n + 1);
  for (int i = 0; i < 2 * n; i++) {
    if (q[n - s[i]].empty()) {
      q[n + s[i]].push(i);
      a[i] = 2 * cur;
      cur++;
    } else {
      int j = q[n - s[i]].front();
      q[n - s[i]].pop();
      a[i] = a[j] + 1;
      if (s[i] < 0) {
        swap(a[i], a[j]);
      }
    }
  }
  fenwick<int> fenw(2 * n + 2);
  long long ans = 0;
  for (int i = 0; i < 2 * n; i++) {
    ans += (long long) (i - fenw.get(a[i]));
    fenw.modify(a[i] + 1, +1);
  }
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 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 376 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 6 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 12 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 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 256 KB Output is correct
16 Correct 2 ms 256 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 424 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 504 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 372 KB Output is correct
36 Correct 3 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 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 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 404 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 4 ms 376 KB Output is correct
12 Correct 2 ms 356 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 1 ms 764 KB Output is correct
18 Correct 4 ms 1784 KB Output is correct
19 Correct 4 ms 1784 KB Output is correct
20 Correct 21 ms 14200 KB Output is correct
21 Correct 23 ms 14172 KB Output is correct
22 Correct 208 ms 139392 KB Output is correct
23 Correct 175 ms 139420 KB Output is correct
24 Correct 180 ms 139508 KB Output is correct
25 Correct 197 ms 139640 KB Output is correct
26 Correct 183 ms 139516 KB Output is correct
27 Correct 172 ms 139216 KB Output is correct
28 Correct 199 ms 139828 KB Output is correct
29 Correct 187 ms 139812 KB Output is correct
30 Correct 206 ms 139724 KB Output is correct
31 Correct 202 ms 139332 KB Output is correct
32 Correct 191 ms 139768 KB Output is correct
33 Correct 200 ms 139764 KB Output is correct
34 Correct 196 ms 139800 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 173 ms 139768 KB Output is correct
38 Correct 186 ms 140000 KB Output is correct
39 Correct 173 ms 139800 KB Output is correct

Subtask #4
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 380 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 225 ms 139392 KB Output is correct
6 Correct 190 ms 139408 KB Output is correct
7 Correct 230 ms 139408 KB Output is correct
8 Correct 184 ms 139768 KB Output is correct
9 Correct 221 ms 139484 KB Output is correct
10 Correct 194 ms 139384 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 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 6 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 12 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 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 256 KB Output is correct
16 Correct 2 ms 256 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 424 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 504 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 372 KB Output is correct
36 Correct 3 ms 256 KB Output is correct
37 Correct 2 ms 420 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 504 KB Output is correct
40 Correct 2 ms 780 KB Output is correct
41 Correct 4 ms 1784 KB Output is correct
42 Correct 4 ms 1784 KB Output is correct
43 Correct 4 ms 1656 KB Output is correct
44 Correct 4 ms 1784 KB Output is correct
45 Correct 4 ms 1656 KB Output is correct
46 Correct 4 ms 1656 KB Output is correct
47 Correct 4 ms 1784 KB Output is correct
48 Correct 4 ms 1784 KB Output is correct
49 Correct 4 ms 1656 KB Output is correct
50 Correct 4 ms 1784 KB Output is correct
51 Correct 4 ms 1656 KB Output is correct
52 Correct 4 ms 1656 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 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 6 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 12 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 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 256 KB Output is correct
16 Correct 2 ms 256 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 424 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 504 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 372 KB Output is correct
36 Correct 3 ms 256 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 252 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 256 KB Output is correct
43 Correct 2 ms 404 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 4 ms 376 KB Output is correct
46 Correct 2 ms 356 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 256 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 3 ms 504 KB Output is correct
51 Correct 1 ms 764 KB Output is correct
52 Correct 4 ms 1784 KB Output is correct
53 Correct 4 ms 1784 KB Output is correct
54 Correct 21 ms 14200 KB Output is correct
55 Correct 23 ms 14172 KB Output is correct
56 Correct 208 ms 139392 KB Output is correct
57 Correct 175 ms 139420 KB Output is correct
58 Correct 180 ms 139508 KB Output is correct
59 Correct 197 ms 139640 KB Output is correct
60 Correct 183 ms 139516 KB Output is correct
61 Correct 172 ms 139216 KB Output is correct
62 Correct 199 ms 139828 KB Output is correct
63 Correct 187 ms 139812 KB Output is correct
64 Correct 206 ms 139724 KB Output is correct
65 Correct 202 ms 139332 KB Output is correct
66 Correct 191 ms 139768 KB Output is correct
67 Correct 200 ms 139764 KB Output is correct
68 Correct 196 ms 139800 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 256 KB Output is correct
71 Correct 173 ms 139768 KB Output is correct
72 Correct 186 ms 140000 KB Output is correct
73 Correct 173 ms 139800 KB Output is correct
74 Correct 2 ms 256 KB Output is correct
75 Correct 2 ms 256 KB Output is correct
76 Correct 2 ms 380 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 225 ms 139392 KB Output is correct
79 Correct 190 ms 139408 KB Output is correct
80 Correct 230 ms 139408 KB Output is correct
81 Correct 184 ms 139768 KB Output is correct
82 Correct 221 ms 139484 KB Output is correct
83 Correct 194 ms 139384 KB Output is correct
84 Correct 2 ms 420 KB Output is correct
85 Correct 2 ms 376 KB Output is correct
86 Correct 2 ms 504 KB Output is correct
87 Correct 2 ms 780 KB Output is correct
88 Correct 4 ms 1784 KB Output is correct
89 Correct 4 ms 1784 KB Output is correct
90 Correct 4 ms 1656 KB Output is correct
91 Correct 4 ms 1784 KB Output is correct
92 Correct 4 ms 1656 KB Output is correct
93 Correct 4 ms 1656 KB Output is correct
94 Correct 4 ms 1784 KB Output is correct
95 Correct 4 ms 1784 KB Output is correct
96 Correct 4 ms 1656 KB Output is correct
97 Correct 4 ms 1784 KB Output is correct
98 Correct 4 ms 1656 KB Output is correct
99 Correct 4 ms 1656 KB Output is correct
100 Correct 4 ms 1756 KB Output is correct
101 Correct 21 ms 14244 KB Output is correct
102 Correct 20 ms 14200 KB Output is correct
103 Correct 213 ms 139392 KB Output is correct
104 Correct 191 ms 139280 KB Output is correct
105 Correct 205 ms 139388 KB Output is correct
106 Correct 215 ms 139400 KB Output is correct
107 Correct 195 ms 139384 KB Output is correct
108 Correct 189 ms 139384 KB Output is correct
109 Correct 176 ms 139780 KB Output is correct
110 Correct 174 ms 139736 KB Output is correct
111 Correct 224 ms 139448 KB Output is correct
112 Correct 220 ms 139384 KB Output is correct
113 Correct 191 ms 139384 KB Output is correct
114 Correct 216 ms 139384 KB Output is correct
115 Correct 216 ms 139316 KB Output is correct