oj.uz

Submission #144242

# Submission time Handle Problem Language Result Execution time Memory
144242 2019-08-16T11:35:40 Z AlexLuchianov Arranging Shoes (IOI19_shoes) C++14
100 / 100
 485 ms 24716 KB 
#include <iostream>
#include <map>
#include <vector>

using namespace std;

#define ll long long
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) < (b)) ? (b) : (a))

int const nmax = 200000;
int aib[1 + nmax];

void update(int x, int lim, int val){
  while(x <= lim){
    aib[x] += val;
    x += (x  ^ (x & (x - 1)));
  }
}

int query(int x){
  int result = 0;
  while(0 < x){
    result += aib[x];
    x = (x & (x - 1));
  }
  return result;
}

map<int,vector<int>> frec;

ll count_swaps(vector<int> v){
  int n = v.size();
  for(int i = 1;i <= n; i++)
    update(i, n, 1);

  for(int i = n; 1 <= i; i--)
    frec[v[i - 1]].push_back(i);

  ll result = 0;
  for(int i = 1;i <= n; i++){
    if(query(i) - query(i - 1) == 1){
      int val = v[i - 1], pos = frec[-val].back();

      frec[val].pop_back();
      frec[-val].pop_back();

      update(i, n, -1);
      update(pos, n, -1);
      if(val < 0)
        result += query(pos) - query(i);
      else
        result += query(pos) - query(i) + 1;
    }
  }
  return result;
}

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 380 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 380 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 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 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 3 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 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 376 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 3 ms 256 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 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 256 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 252 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 376 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 380 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 256 KB Output is correct
7 Correct 3 ms 376 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 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 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 3 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 9 ms 760 KB Output is correct
21 Correct 6 ms 760 KB Output is correct
22 Correct 49 ms 3592 KB Output is correct
23 Correct 40 ms 3700 KB Output is correct
24 Correct 49 ms 3608 KB Output is correct
25 Correct 43 ms 3952 KB Output is correct
26 Correct 50 ms 3700 KB Output is correct
27 Correct 43 ms 3828 KB Output is correct
28 Correct 43 ms 3716 KB Output is correct
29 Correct 44 ms 3952 KB Output is correct
30 Correct 44 ms 3876 KB Output is correct
31 Correct 50 ms 3596 KB Output is correct
32 Correct 44 ms 3796 KB Output is correct
33 Correct 43 ms 3824 KB Output is correct
34 Correct 44 ms 3868 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 380 KB Output is correct
37 Correct 44 ms 3888 KB Output is correct
38 Correct 44 ms 3824 KB Output is correct
39 Correct 44 ms 3924 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 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 410 ms 24700 KB Output is correct
6 Correct 198 ms 5544 KB Output is correct
7 Correct 400 ms 24588 KB Output is correct
8 Correct 58 ms 3640 KB Output is correct
9 Correct 485 ms 24716 KB Output is correct
10 Correct 296 ms 13816 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 380 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 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 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 3 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 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 376 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 3 ms 256 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 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 256 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 252 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 376 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 504 KB Output is correct
45 Correct 3 ms 504 KB Output is correct
46 Correct 3 ms 504 KB Output is correct
47 Correct 3 ms 376 KB Output is correct
48 Correct 3 ms 380 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 632 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 380 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 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 376 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 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 3 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 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 376 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 3 ms 256 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 256 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 256 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 252 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 376 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 256 KB Output is correct
41 Correct 3 ms 376 KB Output is correct
42 Correct 2 ms 256 KB Output is correct
43 Correct 2 ms 376 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 256 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 256 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 9 ms 760 KB Output is correct
55 Correct 6 ms 760 KB Output is correct
56 Correct 49 ms 3592 KB Output is correct
57 Correct 40 ms 3700 KB Output is correct
58 Correct 49 ms 3608 KB Output is correct
59 Correct 43 ms 3952 KB Output is correct
60 Correct 50 ms 3700 KB Output is correct
61 Correct 43 ms 3828 KB Output is correct
62 Correct 43 ms 3716 KB Output is correct
63 Correct 44 ms 3952 KB Output is correct
64 Correct 44 ms 3876 KB Output is correct
65 Correct 50 ms 3596 KB Output is correct
66 Correct 44 ms 3796 KB Output is correct
67 Correct 43 ms 3824 KB Output is correct
68 Correct 44 ms 3868 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 380 KB Output is correct
71 Correct 44 ms 3888 KB Output is correct
72 Correct 44 ms 3824 KB Output is correct
73 Correct 44 ms 3924 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 256 KB Output is correct
76 Correct 2 ms 256 KB Output is correct
77 Correct 2 ms 256 KB Output is correct
78 Correct 410 ms 24700 KB Output is correct
79 Correct 198 ms 5544 KB Output is correct
80 Correct 400 ms 24588 KB Output is correct
81 Correct 58 ms 3640 KB Output is correct
82 Correct 485 ms 24716 KB Output is correct
83 Correct 296 ms 13816 KB Output is correct
84 Correct 2 ms 256 KB Output is correct
85 Correct 2 ms 376 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 504 KB Output is correct
92 Correct 3 ms 504 KB Output is correct
93 Correct 3 ms 504 KB Output is correct
94 Correct 3 ms 376 KB Output is correct
95 Correct 3 ms 380 KB Output is correct
96 Correct 3 ms 376 KB Output is correct
97 Correct 2 ms 376 KB Output is correct
98 Correct 3 ms 376 KB Output is correct
99 Correct 3 ms 632 KB Output is correct
100 Correct 4 ms 632 KB Output is correct
101 Correct 35 ms 2552 KB Output is correct
102 Correct 15 ms 1020 KB Output is correct
103 Correct 457 ms 24624 KB Output is correct
104 Correct 393 ms 24572 KB Output is correct
105 Correct 422 ms 15196 KB Output is correct
106 Correct 374 ms 24696 KB Output is correct
107 Correct 173 ms 6140 KB Output is correct
108 Correct 232 ms 8248 KB Output is correct
109 Correct 47 ms 3952 KB Output is correct
110 Correct 51 ms 3828 KB Output is correct
111 Correct 373 ms 22152 KB Output is correct
112 Correct 384 ms 19916 KB Output is correct
113 Correct 175 ms 6264 KB Output is correct
114 Correct 380 ms 24612 KB Output is correct
115 Correct 380 ms 24568 KB Output is correct