oj.uz

Submission #317990

# Submission time Handle Problem Language Result Execution time Memory
317990 2020-10-31T05:28:47 Z Drew_ Arranging Shoes (IOI19_shoes) C++14
100 / 100
 124 ms 71696 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

int const N = 1e5 + 7;
int bit[2*N] = {};

void add(int x, int val)
{
	x++;
	while (x < 2*N)
		bit[x] += val, x += (x & -x);
}

int sum(int x)
{
	x++;
	int res = 0;
	while (x)
		res += bit[x], x -= (x & -x);
	return res;
}

queue<int> q[N];
bool type[N]; //false: left, true: right

long long count_swaps(std::vector<int> s)
{
	long long res = 0;
	for (int i = 0; i < s.size(); ++i)
	{
		if (q[abs(s[i])].empty() || !type[abs(s[i])] && s[i] < 0 || type[abs(s[i])] && s[i] > 0)
		{
			q[abs(s[i])].push(i);
			if (s[i] < 0) type[abs(s[i])] = false;
			else type[abs(s[i])] = true;
		}
		else
		{
			int target = q[abs(s[i])].front();
			q[abs(s[i])].pop();
		
			//cout << i << " -> " << target << ", shifted: " << sum(target) << ", cost: " << i - target - sum(target) << '\n';

			res += i - target - sum(target);
			if (s[i] > 0) res--;

			add(target, 1);
			add(i, -1);
		}
	}
	return res;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:30:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |  for (int i = 0; i < s.size(); ++i)
      |                  ~~^~~~~~~~~~
shoes.cpp:32:48: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   32 |   if (q[abs(s[i])].empty() || !type[abs(s[i])] && s[i] < 0 || type[abs(s[i])] && s[i] > 0)
      |                               ~~~~~~~~~~~~~~~~~^~~~~~~~~~~
shoes.cpp:32:79: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   32 |   if (q[abs(s[i])].empty() || !type[abs(s[i])] && s[i] < 0 || type[abs(s[i])] && s[i] > 0)
      |                                                               ~~~~~~~~~~~~~~~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 67704 KB Output is correct
2 Correct 52 ms 67704 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 67704 KB Output is correct
2 Correct 52 ms 67704 KB Output is correct
3 Correct 52 ms 67704 KB Output is correct
4 Correct 53 ms 67704 KB Output is correct
5 Correct 52 ms 67704 KB Output is correct
6 Correct 53 ms 67704 KB Output is correct
7 Correct 52 ms 67704 KB Output is correct
8 Correct 52 ms 67704 KB Output is correct
9 Correct 53 ms 67704 KB Output is correct
10 Correct 52 ms 67708 KB Output is correct
11 Correct 53 ms 67704 KB Output is correct
12 Correct 55 ms 67708 KB Output is correct
13 Correct 52 ms 67704 KB Output is correct
14 Correct 52 ms 67704 KB Output is correct
15 Correct 53 ms 67704 KB Output is correct
16 Correct 53 ms 67704 KB Output is correct
17 Correct 52 ms 67704 KB Output is correct
18 Correct 52 ms 67704 KB Output is correct
19 Correct 52 ms 67708 KB Output is correct
20 Correct 51 ms 67704 KB Output is correct
21 Correct 52 ms 67704 KB Output is correct
22 Correct 51 ms 67608 KB Output is correct
23 Correct 51 ms 67712 KB Output is correct
24 Correct 51 ms 67712 KB Output is correct
25 Correct 52 ms 67704 KB Output is correct
26 Correct 50 ms 67680 KB Output is correct
27 Correct 51 ms 67704 KB Output is correct
28 Correct 52 ms 67708 KB Output is correct
29 Correct 52 ms 67704 KB Output is correct
30 Correct 51 ms 67704 KB Output is correct
31 Correct 52 ms 67704 KB Output is correct
32 Correct 53 ms 67708 KB Output is correct
33 Correct 54 ms 67704 KB Output is correct
34 Correct 52 ms 67704 KB Output is correct
35 Correct 52 ms 67704 KB Output is correct
36 Correct 50 ms 67704 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 67704 KB Output is correct
2 Correct 52 ms 67704 KB Output is correct
3 Correct 50 ms 67704 KB Output is correct
4 Correct 51 ms 67704 KB Output is correct
5 Correct 53 ms 67704 KB Output is correct
6 Correct 52 ms 67704 KB Output is correct
7 Correct 52 ms 67704 KB Output is correct
8 Correct 51 ms 67704 KB Output is correct
9 Correct 51 ms 67608 KB Output is correct
10 Correct 52 ms 67708 KB Output is correct
11 Correct 55 ms 67704 KB Output is correct
12 Correct 54 ms 67704 KB Output is correct
13 Correct 55 ms 67704 KB Output is correct
14 Correct 54 ms 67704 KB Output is correct
15 Correct 50 ms 67704 KB Output is correct
16 Correct 51 ms 67704 KB Output is correct
17 Correct 52 ms 67712 KB Output is correct
18 Correct 57 ms 67704 KB Output is correct
19 Correct 57 ms 67908 KB Output is correct
20 Correct 55 ms 67832 KB Output is correct
21 Correct 54 ms 67860 KB Output is correct
22 Correct 89 ms 70008 KB Output is correct
23 Correct 90 ms 70008 KB Output is correct
24 Correct 95 ms 70008 KB Output is correct
25 Correct 85 ms 70392 KB Output is correct
26 Correct 89 ms 70008 KB Output is correct
27 Correct 89 ms 70008 KB Output is correct
28 Correct 89 ms 70392 KB Output is correct
29 Correct 89 ms 70392 KB Output is correct
30 Correct 86 ms 70416 KB Output is correct
31 Correct 92 ms 70028 KB Output is correct
32 Correct 89 ms 70520 KB Output is correct
33 Correct 84 ms 70520 KB Output is correct
34 Correct 88 ms 70392 KB Output is correct
35 Correct 53 ms 67704 KB Output is correct
36 Correct 51 ms 67704 KB Output is correct
37 Correct 89 ms 70392 KB Output is correct
38 Correct 89 ms 70396 KB Output is correct
39 Correct 89 ms 70392 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 67704 KB Output is correct
2 Correct 51 ms 67704 KB Output is correct
3 Correct 52 ms 67704 KB Output is correct
4 Correct 51 ms 67704 KB Output is correct
5 Correct 117 ms 70264 KB Output is correct
6 Correct 100 ms 70136 KB Output is correct
7 Correct 120 ms 70136 KB Output is correct
8 Correct 88 ms 70392 KB Output is correct
9 Correct 118 ms 70136 KB Output is correct
10 Correct 113 ms 70032 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 67704 KB Output is correct
2 Correct 52 ms 67704 KB Output is correct
3 Correct 52 ms 67704 KB Output is correct
4 Correct 53 ms 67704 KB Output is correct
5 Correct 52 ms 67704 KB Output is correct
6 Correct 53 ms 67704 KB Output is correct
7 Correct 52 ms 67704 KB Output is correct
8 Correct 52 ms 67704 KB Output is correct
9 Correct 53 ms 67704 KB Output is correct
10 Correct 52 ms 67708 KB Output is correct
11 Correct 53 ms 67704 KB Output is correct
12 Correct 55 ms 67708 KB Output is correct
13 Correct 52 ms 67704 KB Output is correct
14 Correct 52 ms 67704 KB Output is correct
15 Correct 53 ms 67704 KB Output is correct
16 Correct 53 ms 67704 KB Output is correct
17 Correct 52 ms 67704 KB Output is correct
18 Correct 52 ms 67704 KB Output is correct
19 Correct 52 ms 67708 KB Output is correct
20 Correct 51 ms 67704 KB Output is correct
21 Correct 52 ms 67704 KB Output is correct
22 Correct 51 ms 67608 KB Output is correct
23 Correct 51 ms 67712 KB Output is correct
24 Correct 51 ms 67712 KB Output is correct
25 Correct 52 ms 67704 KB Output is correct
26 Correct 50 ms 67680 KB Output is correct
27 Correct 51 ms 67704 KB Output is correct
28 Correct 52 ms 67708 KB Output is correct
29 Correct 52 ms 67704 KB Output is correct
30 Correct 51 ms 67704 KB Output is correct
31 Correct 52 ms 67704 KB Output is correct
32 Correct 53 ms 67708 KB Output is correct
33 Correct 54 ms 67704 KB Output is correct
34 Correct 52 ms 67704 KB Output is correct
35 Correct 52 ms 67704 KB Output is correct
36 Correct 50 ms 67704 KB Output is correct
37 Correct 52 ms 67704 KB Output is correct
38 Correct 52 ms 67704 KB Output is correct
39 Correct 53 ms 67684 KB Output is correct
40 Correct 53 ms 67704 KB Output is correct
41 Correct 52 ms 67708 KB Output is correct
42 Correct 53 ms 67704 KB Output is correct
43 Correct 50 ms 67704 KB Output is correct
44 Correct 53 ms 67736 KB Output is correct
45 Correct 54 ms 67832 KB Output is correct
46 Correct 52 ms 67704 KB Output is correct
47 Correct 53 ms 67704 KB Output is correct
48 Correct 53 ms 67712 KB Output is correct
49 Correct 52 ms 67704 KB Output is correct
50 Correct 57 ms 67832 KB Output is correct
51 Correct 56 ms 67704 KB Output is correct
52 Correct 54 ms 67840 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 67704 KB Output is correct
2 Correct 52 ms 67704 KB Output is correct
3 Correct 52 ms 67704 KB Output is correct
4 Correct 53 ms 67704 KB Output is correct
5 Correct 52 ms 67704 KB Output is correct
6 Correct 53 ms 67704 KB Output is correct
7 Correct 52 ms 67704 KB Output is correct
8 Correct 52 ms 67704 KB Output is correct
9 Correct 53 ms 67704 KB Output is correct
10 Correct 52 ms 67708 KB Output is correct
11 Correct 53 ms 67704 KB Output is correct
12 Correct 55 ms 67708 KB Output is correct
13 Correct 52 ms 67704 KB Output is correct
14 Correct 52 ms 67704 KB Output is correct
15 Correct 53 ms 67704 KB Output is correct
16 Correct 53 ms 67704 KB Output is correct
17 Correct 52 ms 67704 KB Output is correct
18 Correct 52 ms 67704 KB Output is correct
19 Correct 52 ms 67708 KB Output is correct
20 Correct 51 ms 67704 KB Output is correct
21 Correct 52 ms 67704 KB Output is correct
22 Correct 51 ms 67608 KB Output is correct
23 Correct 51 ms 67712 KB Output is correct
24 Correct 51 ms 67712 KB Output is correct
25 Correct 52 ms 67704 KB Output is correct
26 Correct 50 ms 67680 KB Output is correct
27 Correct 51 ms 67704 KB Output is correct
28 Correct 52 ms 67708 KB Output is correct
29 Correct 52 ms 67704 KB Output is correct
30 Correct 51 ms 67704 KB Output is correct
31 Correct 52 ms 67704 KB Output is correct
32 Correct 53 ms 67708 KB Output is correct
33 Correct 54 ms 67704 KB Output is correct
34 Correct 52 ms 67704 KB Output is correct
35 Correct 52 ms 67704 KB Output is correct
36 Correct 50 ms 67704 KB Output is correct
37 Correct 50 ms 67704 KB Output is correct
38 Correct 51 ms 67704 KB Output is correct
39 Correct 53 ms 67704 KB Output is correct
40 Correct 52 ms 67704 KB Output is correct
41 Correct 52 ms 67704 KB Output is correct
42 Correct 51 ms 67704 KB Output is correct
43 Correct 51 ms 67608 KB Output is correct
44 Correct 52 ms 67708 KB Output is correct
45 Correct 55 ms 67704 KB Output is correct
46 Correct 54 ms 67704 KB Output is correct
47 Correct 55 ms 67704 KB Output is correct
48 Correct 54 ms 67704 KB Output is correct
49 Correct 50 ms 67704 KB Output is correct
50 Correct 51 ms 67704 KB Output is correct
51 Correct 52 ms 67712 KB Output is correct
52 Correct 57 ms 67704 KB Output is correct
53 Correct 57 ms 67908 KB Output is correct
54 Correct 55 ms 67832 KB Output is correct
55 Correct 54 ms 67860 KB Output is correct
56 Correct 89 ms 70008 KB Output is correct
57 Correct 90 ms 70008 KB Output is correct
58 Correct 95 ms 70008 KB Output is correct
59 Correct 85 ms 70392 KB Output is correct
60 Correct 89 ms 70008 KB Output is correct
61 Correct 89 ms 70008 KB Output is correct
62 Correct 89 ms 70392 KB Output is correct
63 Correct 89 ms 70392 KB Output is correct
64 Correct 86 ms 70416 KB Output is correct
65 Correct 92 ms 70028 KB Output is correct
66 Correct 89 ms 70520 KB Output is correct
67 Correct 84 ms 70520 KB Output is correct
68 Correct 88 ms 70392 KB Output is correct
69 Correct 53 ms 67704 KB Output is correct
70 Correct 51 ms 67704 KB Output is correct
71 Correct 89 ms 70392 KB Output is correct
72 Correct 89 ms 70396 KB Output is correct
73 Correct 89 ms 70392 KB Output is correct
74 Correct 51 ms 67704 KB Output is correct
75 Correct 51 ms 67704 KB Output is correct
76 Correct 52 ms 67704 KB Output is correct
77 Correct 51 ms 67704 KB Output is correct
78 Correct 117 ms 70264 KB Output is correct
79 Correct 100 ms 70136 KB Output is correct
80 Correct 120 ms 70136 KB Output is correct
81 Correct 88 ms 70392 KB Output is correct
82 Correct 118 ms 70136 KB Output is correct
83 Correct 113 ms 70032 KB Output is correct
84 Correct 52 ms 67704 KB Output is correct
85 Correct 52 ms 67704 KB Output is correct
86 Correct 53 ms 67684 KB Output is correct
87 Correct 53 ms 67704 KB Output is correct
88 Correct 52 ms 67708 KB Output is correct
89 Correct 53 ms 67704 KB Output is correct
90 Correct 50 ms 67704 KB Output is correct
91 Correct 53 ms 67736 KB Output is correct
92 Correct 54 ms 67832 KB Output is correct
93 Correct 52 ms 67704 KB Output is correct
94 Correct 53 ms 67704 KB Output is correct
95 Correct 53 ms 67712 KB Output is correct
96 Correct 52 ms 67704 KB Output is correct
97 Correct 57 ms 67832 KB Output is correct
98 Correct 56 ms 67704 KB Output is correct
99 Correct 54 ms 67840 KB Output is correct
100 Correct 50 ms 67704 KB Output is correct
101 Correct 63 ms 68088 KB Output is correct
102 Correct 56 ms 67960 KB Output is correct
103 Correct 121 ms 71416 KB Output is correct
104 Correct 113 ms 71288 KB Output is correct
105 Correct 106 ms 71292 KB Output is correct
106 Correct 118 ms 71292 KB Output is correct
107 Correct 100 ms 71288 KB Output is correct
108 Correct 106 ms 71420 KB Output is correct
109 Correct 87 ms 71696 KB Output is correct
110 Correct 90 ms 71672 KB Output is correct
111 Correct 119 ms 71288 KB Output is correct
112 Correct 124 ms 71288 KB Output is correct
113 Correct 105 ms 71416 KB Output is correct
114 Correct 119 ms 71524 KB Output is correct
115 Correct 119 ms 71288 KB Output is correct