oj.uz

Submission #758794

# Submission time Handle Problem Language Result Execution time Memory
758794 2023-06-15T10:12:30 Z Blagoj Arranging Shoes (IOI19_shoes) C++17
100 / 100
 536 ms 149452 KB 
#include "shoes.h"
#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()

struct FenwickTree {
	vector<ll> fwt;

	FenwickTree(int n) {
		fwt.resize(n);
	}

	void add(int n) {
		for (n++; n < fwt.size(); n += n & -n) {
			fwt[n]++;
		}
	}

	ll get(int n) {
		ll s = 0;
		for (n++; n > 0; n -= n & -n) {
			s += fwt[n];
		}
		return s;
	}

};

long long count_swaps(vector<int> s) {
	map<int, queue<int>> mp;
	for (int i = 0; i < s.size(); i++) {
		mp[s[i]].push(i);
	}
	int d[s.size() + 2], cur = 1;
	memset(d, 0, sizeof(d));
	for (int i = 0; i < s.size(); i++) {
		if (d[i] != 0) continue;
		if (s[i] < 0) {
			d[i] = cur;
			mp[s[i]].pop();
			d[mp[-s[i]].front()] = cur + 1;
			mp[-s[i]].pop();
		}
		else {
			d[i] = cur + 1;
			mp[s[i]].pop();
			d[mp[-s[i]].front()] = cur;
			mp[-s[i]].pop();
		}
		cur += 2;
	}
	ll ans = 0;
	FenwickTree fwt(s.size() + 5);
	for (int i = s.size() - 1; i >= 0; i--) {
		ans += fwt.get(d[i] - 1);
		fwt.add(d[i]);
	}
	return ans;
}

Compilation message

shoes.cpp: In member function 'void FenwickTree::add(int)':
shoes.cpp:18:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |   for (n++; n < fwt.size(); n += n & -n) {
      |             ~~^~~~~~~~~~~~
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:35:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |  for (int i = 0; i < s.size(); i++) {
      |                  ~~^~~~~~~~~~
shoes.cpp:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for (int i = 0; i < s.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 300 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 300 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 304 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 308 KB Output is correct
20 Correct 4 ms 852 KB Output is correct
21 Correct 3 ms 852 KB Output is correct
22 Correct 24 ms 6220 KB Output is correct
23 Correct 22 ms 6228 KB Output is correct
24 Correct 24 ms 6200 KB Output is correct
25 Correct 22 ms 6048 KB Output is correct
26 Correct 24 ms 6200 KB Output is correct
27 Correct 21 ms 6008 KB Output is correct
28 Correct 22 ms 6292 KB Output is correct
29 Correct 21 ms 6192 KB Output is correct
30 Correct 22 ms 6304 KB Output is correct
31 Correct 24 ms 6196 KB Output is correct
32 Correct 22 ms 6196 KB Output is correct
33 Correct 21 ms 6076 KB Output is correct
34 Correct 21 ms 6200 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 22 ms 6192 KB Output is correct
38 Correct 29 ms 6184 KB Output is correct
39 Correct 22 ms 6196 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 296 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 536 ms 149428 KB Output is correct
6 Correct 92 ms 18000 KB Output is correct
7 Correct 450 ms 149396 KB Output is correct
8 Correct 30 ms 6220 KB Output is correct
9 Correct 433 ms 149424 KB Output is correct
10 Correct 297 ms 77360 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 300 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 300 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 304 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 596 KB Output is correct
41 Correct 2 ms 1748 KB Output is correct
42 Correct 2 ms 1748 KB Output is correct
43 Correct 2 ms 1492 KB Output is correct
44 Correct 2 ms 1364 KB Output is correct
45 Correct 2 ms 1236 KB Output is correct
46 Correct 1 ms 1108 KB Output is correct
47 Correct 1 ms 852 KB Output is correct
48 Correct 1 ms 724 KB Output is correct
49 Correct 1 ms 596 KB Output is correct
50 Correct 1 ms 308 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 2 ms 1748 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 304 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 300 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 300 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 304 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 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 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 296 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 304 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 300 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 308 KB Output is correct
54 Correct 4 ms 852 KB Output is correct
55 Correct 3 ms 852 KB Output is correct
56 Correct 24 ms 6220 KB Output is correct
57 Correct 22 ms 6228 KB Output is correct
58 Correct 24 ms 6200 KB Output is correct
59 Correct 22 ms 6048 KB Output is correct
60 Correct 24 ms 6200 KB Output is correct
61 Correct 21 ms 6008 KB Output is correct
62 Correct 22 ms 6292 KB Output is correct
63 Correct 21 ms 6192 KB Output is correct
64 Correct 22 ms 6304 KB Output is correct
65 Correct 24 ms 6196 KB Output is correct
66 Correct 22 ms 6196 KB Output is correct
67 Correct 21 ms 6076 KB Output is correct
68 Correct 21 ms 6200 KB Output is correct
69 Correct 1 ms 300 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 22 ms 6192 KB Output is correct
72 Correct 29 ms 6184 KB Output is correct
73 Correct 22 ms 6196 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 0 ms 296 KB Output is correct
77 Correct 1 ms 300 KB Output is correct
78 Correct 536 ms 149428 KB Output is correct
79 Correct 92 ms 18000 KB Output is correct
80 Correct 450 ms 149396 KB Output is correct
81 Correct 30 ms 6220 KB Output is correct
82 Correct 433 ms 149424 KB Output is correct
83 Correct 297 ms 77360 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 1 ms 340 KB Output is correct
86 Correct 1 ms 340 KB Output is correct
87 Correct 1 ms 596 KB Output is correct
88 Correct 2 ms 1748 KB Output is correct
89 Correct 2 ms 1748 KB Output is correct
90 Correct 2 ms 1492 KB Output is correct
91 Correct 2 ms 1364 KB Output is correct
92 Correct 2 ms 1236 KB Output is correct
93 Correct 1 ms 1108 KB Output is correct
94 Correct 1 ms 852 KB Output is correct
95 Correct 1 ms 724 KB Output is correct
96 Correct 1 ms 596 KB Output is correct
97 Correct 1 ms 308 KB Output is correct
98 Correct 1 ms 340 KB Output is correct
99 Correct 2 ms 1748 KB Output is correct
100 Correct 2 ms 1748 KB Output is correct
101 Correct 32 ms 13636 KB Output is correct
102 Correct 9 ms 3620 KB Output is correct
103 Correct 476 ms 149356 KB Output is correct
104 Correct 455 ms 149448 KB Output is correct
105 Correct 326 ms 87244 KB Output is correct
106 Correct 420 ms 149408 KB Output is correct
107 Correct 114 ms 21392 KB Output is correct
108 Correct 154 ms 37452 KB Output is correct
109 Correct 22 ms 6312 KB Output is correct
110 Correct 22 ms 6220 KB Output is correct
111 Correct 396 ms 133356 KB Output is correct
112 Correct 407 ms 117440 KB Output is correct
113 Correct 112 ms 23148 KB Output is correct
114 Correct 431 ms 149416 KB Output is correct
115 Correct 423 ms 149452 KB Output is correct