oj.uz

답안 #826768

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
826768 2023-08-16T03:07:17 Z kevinsogo Arranging Shoes (IOI19_shoes) C++17
100 / 100
 937 ms 22852 KB 
#include <bits/stdc++.h>
using namespace std;
#include "shoes.h"
using ll = long long;

struct Fen {
    vector<int> c;
    Fen(int n): c(n + 1) {}
    void inc(int i, int v = 1) {
        for (++i; i < c.size(); i += i & -i) c[i] += v;
    }
    int sum(int i, int v = 0) {
        for (; i; i -= i & -i) v += c[i];
        return v;
    }
};

ll count_swaps(vector<int> _seq) {
    unordered_map<int,int> found;
    vector<ll> seq;
    for (int v : _seq) seq.push_back(ll(v) * _seq.size() + ((v > 0) - (v < 0)) * found[v]++);
    unordered_map<ll,int> pos;
    for (int i = 0; i < seq.size(); i++) pos[seq[i]] = i;
    sort(seq.rbegin(), seq.rend(), [&](ll i, ll j) {
        int d = min(pos[i], pos[-i]) - min(pos[j], pos[-j]);
        return d ? d < 0 : i < j;
    });
    for (ll& v : seq) v = pos[v];
    ll ans = 0;
    Fen f(seq.size());
    for (ll v : seq) ans += f.sum(v), f.inc(v);
    return ans;
}

Compilation message

shoes.cpp: In member function 'void Fen::inc(int, int)':
shoes.cpp:10:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |         for (++i; i < c.size(); i += i & -i) c[i] += v;
      |                   ~~^~~~~~~~~~
shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for (int i = 0; i < seq.size(); i++) pos[seq[i]] = i;
      |                     ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 18 ms 1424 KB Output is correct
21 Correct 18 ms 1420 KB Output is correct
22 Correct 182 ms 13212 KB Output is correct
23 Correct 155 ms 13152 KB Output is correct
24 Correct 185 ms 13212 KB Output is correct
25 Correct 565 ms 13172 KB Output is correct
26 Correct 184 ms 13300 KB Output is correct
27 Correct 217 ms 13216 KB Output is correct
28 Correct 431 ms 13212 KB Output is correct
29 Correct 431 ms 13208 KB Output is correct
30 Correct 544 ms 13212 KB Output is correct
31 Correct 234 ms 13172 KB Output is correct
32 Correct 467 ms 13212 KB Output is correct
33 Correct 424 ms 13216 KB Output is correct
34 Correct 429 ms 13208 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 527 ms 13212 KB Output is correct
38 Correct 489 ms 13228 KB Output is correct
39 Correct 451 ms 13212 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 552 ms 22732 KB Output is correct
6 Correct 757 ms 13952 KB Output is correct
7 Correct 533 ms 22760 KB Output is correct
8 Correct 529 ms 13208 KB Output is correct
9 Correct 864 ms 22852 KB Output is correct
10 Correct 713 ms 17640 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 3 ms 468 KB Output is correct
45 Correct 3 ms 468 KB Output is correct
46 Correct 2 ms 340 KB Output is correct
47 Correct 2 ms 340 KB Output is correct
48 Correct 4 ms 340 KB Output is correct
49 Correct 2 ms 340 KB Output is correct
50 Correct 3 ms 404 KB Output is correct
51 Correct 3 ms 404 KB Output is correct
52 Correct 3 ms 468 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 2 ms 340 KB Output is correct
53 Correct 2 ms 340 KB Output is correct
54 Correct 18 ms 1424 KB Output is correct
55 Correct 18 ms 1420 KB Output is correct
56 Correct 182 ms 13212 KB Output is correct
57 Correct 155 ms 13152 KB Output is correct
58 Correct 185 ms 13212 KB Output is correct
59 Correct 565 ms 13172 KB Output is correct
60 Correct 184 ms 13300 KB Output is correct
61 Correct 217 ms 13216 KB Output is correct
62 Correct 431 ms 13212 KB Output is correct
63 Correct 431 ms 13208 KB Output is correct
64 Correct 544 ms 13212 KB Output is correct
65 Correct 234 ms 13172 KB Output is correct
66 Correct 467 ms 13212 KB Output is correct
67 Correct 424 ms 13216 KB Output is correct
68 Correct 429 ms 13208 KB Output is correct
69 Correct 0 ms 212 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 527 ms 13212 KB Output is correct
72 Correct 489 ms 13228 KB Output is correct
73 Correct 451 ms 13212 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 0 ms 212 KB Output is correct
76 Correct 0 ms 212 KB Output is correct
77 Correct 0 ms 212 KB Output is correct
78 Correct 552 ms 22732 KB Output is correct
79 Correct 757 ms 13952 KB Output is correct
80 Correct 533 ms 22760 KB Output is correct
81 Correct 529 ms 13208 KB Output is correct
82 Correct 864 ms 22852 KB Output is correct
83 Correct 713 ms 17640 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 0 ms 212 KB Output is correct
86 Correct 1 ms 212 KB Output is correct
87 Correct 1 ms 340 KB Output is correct
88 Correct 2 ms 468 KB Output is correct
89 Correct 2 ms 468 KB Output is correct
90 Correct 2 ms 468 KB Output is correct
91 Correct 3 ms 468 KB Output is correct
92 Correct 3 ms 468 KB Output is correct
93 Correct 2 ms 340 KB Output is correct
94 Correct 2 ms 340 KB Output is correct
95 Correct 4 ms 340 KB Output is correct
96 Correct 2 ms 340 KB Output is correct
97 Correct 3 ms 404 KB Output is correct
98 Correct 3 ms 404 KB Output is correct
99 Correct 3 ms 468 KB Output is correct
100 Correct 3 ms 468 KB Output is correct
101 Correct 29 ms 2140 KB Output is correct
102 Correct 29 ms 1560 KB Output is correct
103 Correct 281 ms 22720 KB Output is correct
104 Correct 262 ms 22628 KB Output is correct
105 Correct 294 ms 18004 KB Output is correct
106 Correct 853 ms 22724 KB Output is correct
107 Correct 329 ms 14148 KB Output is correct
108 Correct 251 ms 15268 KB Output is correct
109 Correct 442 ms 13212 KB Output is correct
110 Correct 431 ms 13156 KB Output is correct
111 Correct 855 ms 22032 KB Output is correct
112 Correct 405 ms 19436 KB Output is correct
113 Correct 422 ms 14312 KB Output is correct
114 Correct 842 ms 22732 KB Output is correct
115 Correct 937 ms 22720 KB Output is correct