oj.uz

Submission #980064

# Submission time Handle Problem Language Result Execution time Memory
980064 2024-05-11T21:05:16 Z asdfgrace Art Collections (BOI22_art) C++17
70 / 100
 1202 ms 1628 KB 
#include <bits/stdc++.h>
#include "art.h"
using namespace std;

#define dbg(x) x
#define prt(x) dbg(cerr << x)
#define pv(x) dbg(cerr << #x << " = " << x << '\n')
#define pv2(x) dbg(cerr << #x << " = " << x.first << ',' << x.second << '\n')
#define parr(x) dbg(prt(#x << " = { "); for (auto y : x) prt(y << ' '); prt("}\n");)
#define parr2(x) dbg(prt(#x << " = { "); for (auto [y, z] : x) prt(y << ',' << z << "  "); prt("}\n");)
#define parr2d(x) dbg(prt(#x << ":\n"); for (auto arr : x) {parr(arr);} prt('\n'));
#define parr2d2(x) dbg(prt(#x << ":\n"); for (auto arr : x) {parr2(arr);} prt('\n'));

/*
number of pairs (x, y)
so that g.at[x] < g.at[y] and r.at[x] > r.at[y]
what about pairs (x, y)
so that g.at[x] > g.at[y] and r.at[y] < r.at[x]
basically
number of "inversions" when you replace each value i in r with g.at[i]
when there are 0 inversions you just submit whatever you guessed g was
useful guesses?
identity permutation first obvs
g.at[i] = i for all i
gives number of inversions in r
can probably then find contribution of each index?
if we swap any two elements, does it reduce the number of inversions?
if yes, swap them; else don't
this should make n^2 guesses ez it's like bubble sort
can some other sort be applied here?
maybe some kind of sort calculating contribution of each elem?
like take the first element and make it last
so you find the rank of the first elem?
so you find how much the number of inversions changes by
and basically
the increase in the number of inversions
is probably useful
and can be used to determine the position of the element
dif = (elems after v[0]) - (elems before v[0])
-dif = (elems before v[0]) - (elems after v[0])

*/

void solve(int n) {
  vector<int> v(n), at(n);
  iota(v.begin(), v.end(), 1);
  for (int i = 0; i < n; i++) {
    int inv1 = publish(v);
    vector<int> v2;
    for (int i = 1; i < n; i++) v2.push_back(v[i]);
    v2.push_back(v[0]);
    int inv2 = publish(v2);
    int dif = inv1 - inv2, ind = (n - 1 + dif) / 2;
    at[v[0] - 1] = ind;
    swap(v, v2);
  }
  vector<int> res(n);
  for (int i = 0; i < n; i++) {
    res[at[i]] = i + 1;
  }
  answer(res);
}

Compilation message

interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 500 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 584 KB Output is correct
7 Correct 1 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 500 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 584 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 500 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 584 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 600 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 11 ms 440 KB Output is correct
27 Correct 11 ms 440 KB Output is correct
28 Correct 11 ms 440 KB Output is correct
29 Correct 12 ms 436 KB Output is correct
30 Correct 12 ms 592 KB Output is correct
31 Correct 12 ms 436 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 500 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 584 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 600 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 11 ms 440 KB Output is correct
27 Correct 11 ms 440 KB Output is correct
28 Correct 11 ms 440 KB Output is correct
29 Correct 12 ms 436 KB Output is correct
30 Correct 12 ms 592 KB Output is correct
31 Correct 12 ms 436 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 12 ms 612 KB Output is correct
46 Correct 11 ms 440 KB Output is correct
47 Correct 11 ms 440 KB Output is correct
48 Correct 11 ms 440 KB Output is correct
49 Correct 11 ms 440 KB Output is correct
50 Correct 12 ms 440 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 32 ms 436 KB Output is correct
53 Correct 32 ms 596 KB Output is correct
54 Correct 34 ms 440 KB Output is correct
55 Correct 32 ms 432 KB Output is correct
56 Correct 32 ms 440 KB Output is correct
57 Correct 33 ms 440 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 344 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 500 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 584 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 600 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 11 ms 440 KB Output is correct
27 Correct 11 ms 440 KB Output is correct
28 Correct 11 ms 440 KB Output is correct
29 Correct 12 ms 436 KB Output is correct
30 Correct 12 ms 592 KB Output is correct
31 Correct 12 ms 436 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 12 ms 612 KB Output is correct
46 Correct 11 ms 440 KB Output is correct
47 Correct 11 ms 440 KB Output is correct
48 Correct 11 ms 440 KB Output is correct
49 Correct 11 ms 440 KB Output is correct
50 Correct 12 ms 440 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 32 ms 436 KB Output is correct
53 Correct 32 ms 596 KB Output is correct
54 Correct 34 ms 440 KB Output is correct
55 Correct 32 ms 432 KB Output is correct
56 Correct 32 ms 440 KB Output is correct
57 Correct 33 ms 440 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 344 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 1 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 344 KB Output is correct
69 Correct 1 ms 344 KB Output is correct
70 Correct 11 ms 440 KB Output is correct
71 Correct 14 ms 436 KB Output is correct
72 Correct 11 ms 440 KB Output is correct
73 Correct 12 ms 436 KB Output is correct
74 Correct 12 ms 436 KB Output is correct
75 Correct 12 ms 444 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 33 ms 440 KB Output is correct
78 Correct 32 ms 436 KB Output is correct
79 Correct 33 ms 436 KB Output is correct
80 Correct 33 ms 440 KB Output is correct
81 Correct 32 ms 444 KB Output is correct
82 Correct 35 ms 440 KB Output is correct
83 Correct 610 ms 1560 KB Output is correct
84 Correct 603 ms 1256 KB Output is correct
85 Correct 606 ms 1476 KB Output is correct
86 Correct 601 ms 1540 KB Output is correct
87 Correct 1 ms 344 KB Output is correct
88 Correct 608 ms 1576 KB Output is correct
89 Correct 605 ms 1284 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 0 ms 344 KB Output is correct
93 Correct 0 ms 344 KB Output is correct
94 Correct 1 ms 344 KB Output is correct
95 Correct 1 ms 344 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 500 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 584 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 600 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 11 ms 440 KB Output is correct
27 Correct 11 ms 440 KB Output is correct
28 Correct 11 ms 440 KB Output is correct
29 Correct 12 ms 436 KB Output is correct
30 Correct 12 ms 592 KB Output is correct
31 Correct 12 ms 436 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 12 ms 612 KB Output is correct
46 Correct 11 ms 440 KB Output is correct
47 Correct 11 ms 440 KB Output is correct
48 Correct 11 ms 440 KB Output is correct
49 Correct 11 ms 440 KB Output is correct
50 Correct 12 ms 440 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 32 ms 436 KB Output is correct
53 Correct 32 ms 596 KB Output is correct
54 Correct 34 ms 440 KB Output is correct
55 Correct 32 ms 432 KB Output is correct
56 Correct 32 ms 440 KB Output is correct
57 Correct 33 ms 440 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 344 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 1 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 344 KB Output is correct
69 Correct 1 ms 344 KB Output is correct
70 Correct 11 ms 440 KB Output is correct
71 Correct 14 ms 436 KB Output is correct
72 Correct 11 ms 440 KB Output is correct
73 Correct 12 ms 436 KB Output is correct
74 Correct 12 ms 436 KB Output is correct
75 Correct 12 ms 444 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 33 ms 440 KB Output is correct
78 Correct 32 ms 436 KB Output is correct
79 Correct 33 ms 436 KB Output is correct
80 Correct 33 ms 440 KB Output is correct
81 Correct 32 ms 444 KB Output is correct
82 Correct 35 ms 440 KB Output is correct
83 Correct 610 ms 1560 KB Output is correct
84 Correct 603 ms 1256 KB Output is correct
85 Correct 606 ms 1476 KB Output is correct
86 Correct 601 ms 1540 KB Output is correct
87 Correct 1 ms 344 KB Output is correct
88 Correct 608 ms 1576 KB Output is correct
89 Correct 605 ms 1284 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 0 ms 344 KB Output is correct
93 Correct 0 ms 344 KB Output is correct
94 Correct 1 ms 344 KB Output is correct
95 Correct 1 ms 344 KB Output is correct
96 Correct 0 ms 344 KB Output is correct
97 Correct 1 ms 344 KB Output is correct
98 Correct 1 ms 344 KB Output is correct
99 Correct 1 ms 344 KB Output is correct
100 Correct 1 ms 344 KB Output is correct
101 Correct 11 ms 440 KB Output is correct
102 Correct 11 ms 436 KB Output is correct
103 Correct 11 ms 440 KB Output is correct
104 Correct 11 ms 444 KB Output is correct
105 Correct 12 ms 436 KB Output is correct
106 Correct 12 ms 436 KB Output is correct
107 Correct 1 ms 344 KB Output is correct
108 Correct 32 ms 444 KB Output is correct
109 Correct 32 ms 432 KB Output is correct
110 Correct 37 ms 440 KB Output is correct
111 Correct 32 ms 436 KB Output is correct
112 Correct 32 ms 444 KB Output is correct
113 Correct 35 ms 432 KB Output is correct
114 Correct 606 ms 1476 KB Output is correct
115 Correct 606 ms 1396 KB Output is correct
116 Correct 608 ms 1628 KB Output is correct
117 Correct 607 ms 1360 KB Output is correct
118 Correct 1 ms 344 KB Output is correct
119 Correct 608 ms 1492 KB Output is correct
120 Correct 609 ms 1516 KB Output is correct
121 Incorrect 1202 ms 1412 KB Not correct
122 Halted 0 ms 0 KB -