oj.uz

Submission #289829

# Submission time Handle Problem Language Result Execution time Memory
289829 2020-09-03T06:23:25 Z IgorI Arranging Shoes (IOI19_shoes) C++17
100 / 100
 291 ms 13432 KB 
#include <vector>
#include <cstdio>
#include <string>
#include <set>
#include <cstdlib>
#include <iostream>
#include <map>

using namespace std;

#define all(x) (x).begin(), (x).end()
#define forn(i, n) for (int (i) = 0; (i) < (n); (i)++)

const int N = 540400;

int fenw[N];

void add(int pos)
{
    while (pos < N)
    {
        fenw[pos]++;
        pos = (pos | (pos + 1));
    }
}

int get(int pos)
{
    int res = 0;
    while (pos >= 0)
    {
        res += fenw[pos];
        pos = (pos & (pos + 1)) - 1;
    }
    return res;
}

long long count_swaps(vector<int> a)
{
    int n = a.size() / 2;
    long long ans = 0;
    set<pair<int, int> > s;
    for (int i = 0; i < a.size(); i++)
    {
        s.insert({a[i], i});
    }
    int j = 0;
    for (int i = 0; i < n; i++)
    {
        while (get(j) - get(j - 1) != 0) j++;
        pair<int, int> x = {a[j], j};
        s.erase(x);
        auto it2 = s.lower_bound({-x.first, -1});
        pair<int, int> y = *it2;
        //cout << x.first << " " << x.second << "->" << y.first << " " << y.second << "\n";
        s.erase(y);
        int real_pos = y.second + get(a.size()) - get(y.second);
        add(y.second);
        add(x.second);
        ans += abs(real_pos - (2 * i + 1));
        if (x.first > 0) ans++;
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:43:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     for (int i = 0; i < a.size(); i++)
      |                     ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 10 ms 1536 KB Output is correct
21 Correct 10 ms 1536 KB Output is correct
22 Correct 113 ms 12024 KB Output is correct
23 Correct 141 ms 12172 KB Output is correct
24 Correct 110 ms 12024 KB Output is correct
25 Correct 119 ms 12152 KB Output is correct
26 Correct 112 ms 12024 KB Output is correct
27 Correct 129 ms 12028 KB Output is correct
28 Correct 122 ms 12024 KB Output is correct
29 Correct 120 ms 12024 KB Output is correct
30 Correct 124 ms 12152 KB Output is correct
31 Correct 112 ms 12024 KB Output is correct
32 Correct 114 ms 12024 KB Output is correct
33 Correct 119 ms 12024 KB Output is correct
34 Correct 122 ms 12024 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 114 ms 12024 KB Output is correct
38 Correct 116 ms 12152 KB Output is correct
39 Correct 118 ms 12024 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 210 ms 12280 KB Output is correct
6 Correct 217 ms 12280 KB Output is correct
7 Correct 236 ms 12108 KB Output is correct
8 Correct 118 ms 12152 KB Output is correct
9 Correct 225 ms 12152 KB Output is correct
10 Correct 239 ms 12152 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 512 KB Output is correct
43 Correct 2 ms 512 KB Output is correct
44 Correct 2 ms 512 KB Output is correct
45 Correct 2 ms 512 KB Output is correct
46 Correct 2 ms 512 KB Output is correct
47 Correct 2 ms 512 KB Output is correct
48 Correct 2 ms 512 KB Output is correct
49 Correct 2 ms 512 KB Output is correct
50 Correct 2 ms 512 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 2 ms 512 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 0 ms 384 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 0 ms 384 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 0 ms 384 KB Output is correct
45 Correct 0 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 0 ms 384 KB Output is correct
48 Correct 0 ms 384 KB Output is correct
49 Correct 0 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 512 KB Output is correct
53 Correct 1 ms 512 KB Output is correct
54 Correct 10 ms 1536 KB Output is correct
55 Correct 10 ms 1536 KB Output is correct
56 Correct 113 ms 12024 KB Output is correct
57 Correct 141 ms 12172 KB Output is correct
58 Correct 110 ms 12024 KB Output is correct
59 Correct 119 ms 12152 KB Output is correct
60 Correct 112 ms 12024 KB Output is correct
61 Correct 129 ms 12028 KB Output is correct
62 Correct 122 ms 12024 KB Output is correct
63 Correct 120 ms 12024 KB Output is correct
64 Correct 124 ms 12152 KB Output is correct
65 Correct 112 ms 12024 KB Output is correct
66 Correct 114 ms 12024 KB Output is correct
67 Correct 119 ms 12024 KB Output is correct
68 Correct 122 ms 12024 KB Output is correct
69 Correct 0 ms 384 KB Output is correct
70 Correct 0 ms 384 KB Output is correct
71 Correct 114 ms 12024 KB Output is correct
72 Correct 116 ms 12152 KB Output is correct
73 Correct 118 ms 12024 KB Output is correct
74 Correct 0 ms 384 KB Output is correct
75 Correct 0 ms 384 KB Output is correct
76 Correct 1 ms 384 KB Output is correct
77 Correct 1 ms 384 KB Output is correct
78 Correct 210 ms 12280 KB Output is correct
79 Correct 217 ms 12280 KB Output is correct
80 Correct 236 ms 12108 KB Output is correct
81 Correct 118 ms 12152 KB Output is correct
82 Correct 225 ms 12152 KB Output is correct
83 Correct 239 ms 12152 KB Output is correct
84 Correct 0 ms 384 KB Output is correct
85 Correct 1 ms 384 KB Output is correct
86 Correct 1 ms 384 KB Output is correct
87 Correct 1 ms 384 KB Output is correct
88 Correct 2 ms 512 KB Output is correct
89 Correct 2 ms 512 KB Output is correct
90 Correct 2 ms 512 KB Output is correct
91 Correct 2 ms 512 KB Output is correct
92 Correct 2 ms 512 KB Output is correct
93 Correct 2 ms 512 KB Output is correct
94 Correct 2 ms 512 KB Output is correct
95 Correct 2 ms 512 KB Output is correct
96 Correct 2 ms 512 KB Output is correct
97 Correct 2 ms 512 KB Output is correct
98 Correct 1 ms 512 KB Output is correct
99 Correct 2 ms 512 KB Output is correct
100 Correct 2 ms 512 KB Output is correct
101 Correct 16 ms 1664 KB Output is correct
102 Correct 16 ms 1664 KB Output is correct
103 Correct 269 ms 13304 KB Output is correct
104 Correct 203 ms 13304 KB Output is correct
105 Correct 240 ms 13304 KB Output is correct
106 Correct 201 ms 13304 KB Output is correct
107 Correct 260 ms 13300 KB Output is correct
108 Correct 223 ms 13304 KB Output is correct
109 Correct 106 ms 13304 KB Output is correct
110 Correct 124 ms 13304 KB Output is correct
111 Correct 229 ms 13432 KB Output is correct
112 Correct 283 ms 13304 KB Output is correct
113 Correct 291 ms 13432 KB Output is correct
114 Correct 212 ms 13304 KB Output is correct
115 Correct 215 ms 13432 KB Output is correct