oj.uz

Submission #152219

# Submission time Handle Problem Language Result Execution time Memory
152219 2019-09-06T19:50:33 Z johutha Arranging Shoes (IOI19_shoes) C++14
100 / 100
 507 ms 282124 KB 
#include "shoes.h"
#include <vector>
#include <queue>
#include <algorithm>
#include <iostream>

#define int long long

using namespace std;

struct segtree
{
	vector<int> table;

	void update(int k, int v, int l, int r, int pos)
	{
		if (l == r)
		{
			table[pos] = v;
			return;
		}
		if (k <= (l + r) / 2) update(k, v, l, (l + r) / 2, 2*pos + 1);
		else update(k, v, (l + r)/ 2 + 1, r, 2*pos + 2);
		table[pos] = table[2*pos + 1] + table[2*pos + 2];
	}

	int query(int ql, int qr, int l, int r, int pos)
	{
		if (ql <= l && r <= qr) return table[pos];
		if (ql > r || qr < l) return 0;
		return query(ql, qr, l, (l + r)/2, 2*pos + 1) + query(ql, qr, (l + r)/2 + 1, r, 2*pos + 2);
	}
};

long long count_swaps(vector<signed> s) {
	int n = s.size();

	vector<queue<int>> poss(n + 1);
	vector<queue<int>> negs(n + 1);

	for (int i = 0; i < n; i++)
	{
		if (s[i] < 0) negs[-s[i]].push(i);
		else poss[s[i]].push(i);
	}

	vector<int> seq(n, -1);
	int curr = 0;

	for (int i = 0; i < n; i++)
	{
		if (seq[i] != -1) continue;
		int v = abs(s[i]);
		if (s[i] < 0)
		{
			seq[i] = curr;
			seq[poss[v].front()] = curr + 1;
		}
		else
		{
			seq[negs[v].front()] = curr;
			seq[i] = curr + 1;
		}
		poss[v].pop();
		negs[v].pop();
		curr += 2;
	}
	/*
	for (auto i : seq) cout << i << " ";
	cout << "\n";
	*/
	int ssum = 0;
	segtree st;
	st.table.resize(4*n, 0);
	for (int i = 0; i < n; i++)
	{
		ssum += st.query(seq[i], n - 1, 0, n - 1, 0);
		st.update(seq[i], 1, 0, n - 1, 0);
	}
	return ssum;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 364 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 380 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 632 KB Output is correct
17 Correct 3 ms 1144 KB Output is correct
18 Correct 5 ms 3068 KB Output is correct
19 Correct 5 ms 3192 KB Output is correct
20 Correct 37 ms 28408 KB Output is correct
21 Correct 36 ms 28408 KB Output is correct
22 Correct 366 ms 281976 KB Output is correct
23 Correct 364 ms 282064 KB Output is correct
24 Correct 425 ms 281976 KB Output is correct
25 Correct 396 ms 281812 KB Output is correct
26 Correct 365 ms 281976 KB Output is correct
27 Correct 417 ms 281724 KB Output is correct
28 Correct 363 ms 281976 KB Output is correct
29 Correct 436 ms 281992 KB Output is correct
30 Correct 404 ms 281980 KB Output is correct
31 Correct 364 ms 282000 KB Output is correct
32 Correct 361 ms 281952 KB Output is correct
33 Correct 370 ms 281868 KB Output is correct
34 Correct 366 ms 281940 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 359 ms 281976 KB Output is correct
38 Correct 361 ms 281976 KB Output is correct
39 Correct 358 ms 281848 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 493 ms 280216 KB Output is correct
6 Correct 393 ms 280368 KB Output is correct
7 Correct 435 ms 280248 KB Output is correct
8 Correct 387 ms 282124 KB Output is correct
9 Correct 421 ms 280184 KB Output is correct
10 Correct 401 ms 280184 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 364 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 504 KB Output is correct
39 Correct 2 ms 632 KB Output is correct
40 Correct 3 ms 1144 KB Output is correct
41 Correct 5 ms 3192 KB Output is correct
42 Correct 5 ms 3192 KB Output is correct
43 Correct 6 ms 3100 KB Output is correct
44 Correct 5 ms 3120 KB Output is correct
45 Correct 5 ms 3064 KB Output is correct
46 Correct 5 ms 3192 KB Output is correct
47 Correct 5 ms 3192 KB Output is correct
48 Correct 5 ms 3192 KB Output is correct
49 Correct 5 ms 3192 KB Output is correct
50 Correct 5 ms 3192 KB Output is correct
51 Correct 5 ms 3064 KB Output is correct
52 Correct 5 ms 3192 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 364 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 256 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 256 KB Output is correct
41 Correct 2 ms 380 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 256 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 632 KB Output is correct
51 Correct 3 ms 1144 KB Output is correct
52 Correct 5 ms 3068 KB Output is correct
53 Correct 5 ms 3192 KB Output is correct
54 Correct 37 ms 28408 KB Output is correct
55 Correct 36 ms 28408 KB Output is correct
56 Correct 366 ms 281976 KB Output is correct
57 Correct 364 ms 282064 KB Output is correct
58 Correct 425 ms 281976 KB Output is correct
59 Correct 396 ms 281812 KB Output is correct
60 Correct 365 ms 281976 KB Output is correct
61 Correct 417 ms 281724 KB Output is correct
62 Correct 363 ms 281976 KB Output is correct
63 Correct 436 ms 281992 KB Output is correct
64 Correct 404 ms 281980 KB Output is correct
65 Correct 364 ms 282000 KB Output is correct
66 Correct 361 ms 281952 KB Output is correct
67 Correct 370 ms 281868 KB Output is correct
68 Correct 366 ms 281940 KB Output is correct
69 Correct 2 ms 256 KB Output is correct
70 Correct 2 ms 376 KB Output is correct
71 Correct 359 ms 281976 KB Output is correct
72 Correct 361 ms 281976 KB Output is correct
73 Correct 358 ms 281848 KB Output is correct
74 Correct 2 ms 256 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 256 KB Output is correct
77 Correct 2 ms 256 KB Output is correct
78 Correct 493 ms 280216 KB Output is correct
79 Correct 393 ms 280368 KB Output is correct
80 Correct 435 ms 280248 KB Output is correct
81 Correct 387 ms 282124 KB Output is correct
82 Correct 421 ms 280184 KB Output is correct
83 Correct 401 ms 280184 KB Output is correct
84 Correct 2 ms 376 KB Output is correct
85 Correct 2 ms 504 KB Output is correct
86 Correct 2 ms 632 KB Output is correct
87 Correct 3 ms 1144 KB Output is correct
88 Correct 5 ms 3192 KB Output is correct
89 Correct 5 ms 3192 KB Output is correct
90 Correct 6 ms 3100 KB Output is correct
91 Correct 5 ms 3120 KB Output is correct
92 Correct 5 ms 3064 KB Output is correct
93 Correct 5 ms 3192 KB Output is correct
94 Correct 5 ms 3192 KB Output is correct
95 Correct 5 ms 3192 KB Output is correct
96 Correct 5 ms 3192 KB Output is correct
97 Correct 5 ms 3192 KB Output is correct
98 Correct 5 ms 3064 KB Output is correct
99 Correct 5 ms 3192 KB Output is correct
100 Correct 5 ms 3192 KB Output is correct
101 Correct 41 ms 28280 KB Output is correct
102 Correct 40 ms 28280 KB Output is correct
103 Correct 507 ms 280356 KB Output is correct
104 Correct 440 ms 280312 KB Output is correct
105 Correct 422 ms 280312 KB Output is correct
106 Correct 418 ms 280352 KB Output is correct
107 Correct 416 ms 280244 KB Output is correct
108 Correct 396 ms 280288 KB Output is correct
109 Correct 362 ms 281884 KB Output is correct
110 Correct 359 ms 281984 KB Output is correct
111 Correct 461 ms 280312 KB Output is correct
112 Correct 447 ms 280284 KB Output is correct
113 Correct 481 ms 280416 KB Output is correct
114 Correct 419 ms 280328 KB Output is correct
115 Correct 425 ms 280420 KB Output is correct