oj.uz

답안 #346612

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
346612 2021-01-10T11:13:49 Z Pety Arranging Shoes (IOI19_shoes) C++14
100 / 100
 133 ms 8684 KB 
#include <bits/stdc++.h>
#include "shoes.h"

using namespace std;

int aib[200002], n;

void update (int x, int val) {
  for (int i = x; i <= n; i += (i & -i))
    aib[i] += val;
}
int query (int x) {
  int sum = 0;
  for (int i = x; i; i -= (i & -i))
    sum += aib[i];
  return sum;
}
int calc (int x) {
  x++;
  return x + query(x);
}

long long count_swaps (vector<int>v) {
  set<pair<int, int>> s;
  n = v.size();
  long long ans = 0;
  for (int i = 0; i < v.size(); i++) {
    int x = v[i];
    auto it = s.lower_bound({-x, 0});
    if (it != s.end() && (*it).first == -x) {
      if (x > 0)
        ans += calc(i) - calc((*it).second) - 1;
      else
        ans += calc(i) - calc((*it).second);
      s.erase(it);
      update(i + 1, -1);
      update((*it).second + 1, 1);
    }
    else
      s.insert({x, i});
  }
  return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:27:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for (int i = 0; i < v.size(); i++) {
      |                   ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 236 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 372 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 5 ms 492 KB Output is correct
21 Correct 5 ms 492 KB Output is correct
22 Correct 45 ms 2796 KB Output is correct
23 Correct 36 ms 2668 KB Output is correct
24 Correct 47 ms 2672 KB Output is correct
25 Correct 64 ms 7404 KB Output is correct
26 Correct 43 ms 2668 KB Output is correct
27 Correct 34 ms 2668 KB Output is correct
28 Correct 66 ms 7404 KB Output is correct
29 Correct 65 ms 7404 KB Output is correct
30 Correct 65 ms 7404 KB Output is correct
31 Correct 46 ms 2668 KB Output is correct
32 Correct 68 ms 7404 KB Output is correct
33 Correct 65 ms 7404 KB Output is correct
34 Correct 65 ms 7404 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 68 ms 7404 KB Output is correct
38 Correct 68 ms 7404 KB Output is correct
39 Correct 67 ms 7404 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 99 ms 7516 KB Output is correct
6 Correct 105 ms 7404 KB Output is correct
7 Correct 103 ms 7436 KB Output is correct
8 Correct 59 ms 7404 KB Output is correct
9 Correct 97 ms 7404 KB Output is correct
10 Correct 100 ms 7404 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 236 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 1 ms 364 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 2 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 236 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 1 ms 364 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 372 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 0 ms 364 KB Output is correct
47 Correct 0 ms 364 KB Output is correct
48 Correct 0 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 5 ms 492 KB Output is correct
55 Correct 5 ms 492 KB Output is correct
56 Correct 45 ms 2796 KB Output is correct
57 Correct 36 ms 2668 KB Output is correct
58 Correct 47 ms 2672 KB Output is correct
59 Correct 64 ms 7404 KB Output is correct
60 Correct 43 ms 2668 KB Output is correct
61 Correct 34 ms 2668 KB Output is correct
62 Correct 66 ms 7404 KB Output is correct
63 Correct 65 ms 7404 KB Output is correct
64 Correct 65 ms 7404 KB Output is correct
65 Correct 46 ms 2668 KB Output is correct
66 Correct 68 ms 7404 KB Output is correct
67 Correct 65 ms 7404 KB Output is correct
68 Correct 65 ms 7404 KB Output is correct
69 Correct 1 ms 364 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 68 ms 7404 KB Output is correct
72 Correct 68 ms 7404 KB Output is correct
73 Correct 67 ms 7404 KB Output is correct
74 Correct 1 ms 364 KB Output is correct
75 Correct 1 ms 364 KB Output is correct
76 Correct 1 ms 364 KB Output is correct
77 Correct 0 ms 364 KB Output is correct
78 Correct 99 ms 7516 KB Output is correct
79 Correct 105 ms 7404 KB Output is correct
80 Correct 103 ms 7436 KB Output is correct
81 Correct 59 ms 7404 KB Output is correct
82 Correct 97 ms 7404 KB Output is correct
83 Correct 100 ms 7404 KB Output is correct
84 Correct 1 ms 364 KB Output is correct
85 Correct 1 ms 364 KB Output is correct
86 Correct 1 ms 364 KB Output is correct
87 Correct 1 ms 364 KB Output is correct
88 Correct 1 ms 364 KB Output is correct
89 Correct 1 ms 364 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 1 ms 364 KB Output is correct
93 Correct 1 ms 364 KB Output is correct
94 Correct 1 ms 364 KB Output is correct
95 Correct 1 ms 364 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 1 ms 364 KB Output is correct
98 Correct 2 ms 364 KB Output is correct
99 Correct 1 ms 364 KB Output is correct
100 Correct 1 ms 364 KB Output is correct
101 Correct 9 ms 876 KB Output is correct
102 Correct 8 ms 748 KB Output is correct
103 Correct 130 ms 6252 KB Output is correct
104 Correct 50 ms 3948 KB Output is correct
105 Correct 64 ms 3980 KB Output is correct
106 Correct 99 ms 8604 KB Output is correct
107 Correct 55 ms 3948 KB Output is correct
108 Correct 38 ms 3948 KB Output is correct
109 Correct 59 ms 8684 KB Output is correct
110 Correct 67 ms 8684 KB Output is correct
111 Correct 106 ms 8556 KB Output is correct
112 Correct 133 ms 7680 KB Output is correct
113 Correct 127 ms 8684 KB Output is correct
114 Correct 96 ms 8556 KB Output is correct
115 Correct 94 ms 8556 KB Output is correct