oj.uz

Submission #143575

# Submission time Handle Problem Language Result Execution time Memory
143575 2019-08-14T16:16:58 Z abeker Arranging Shoes (IOI19_shoes) C++17
100 / 100
 99 ms 19192 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

const int MAXN = 2e5 + 5;

int N;
vector <int> lft[MAXN], rig[MAXN];
int fen[MAXN];

void update(int x) {
	for (x++; x < MAXN; x += x & -x)
		fen[x]++;
}

int get(int x) {
	int res = 0;
	for (x++; x; x -= x & -x)
		res += fen[x];
	return res;
}
	
ll count_swaps(vector <int> shoes) {
	N = shoes.size();
	vector <int> todo(N, -1);
	for (int i = 0; i < N; i++) {
		int sz = abs(shoes[i]);
		if (shoes[i] < 0) 			
			lft[sz].push_back(i);
		else 
			rig[sz].push_back(i);
	}
	
	ll sol = 0;
	for (int i = 1; i <= N / 2; i++) 
		for (int j = 0; j < lft[i].size(); j++) {
			if (lft[i][j] > rig[i][j]) {
				swap(lft[i][j], rig[i][j]);
				sol++;
			}
			todo[rig[i][j]] = lft[i][j];
		}
	
	for (int i = 0; i < N; i++) 
		if (todo[i] != -1) {
			sol += get(N) - get(todo[i]);
			update(todo[i]);
			update(i);
		}
	
	return sol;
}

Compilation message

shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:37:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < lft[i].size(); j++) {
                   ~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 10 ms 9724 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9848 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 13 ms 9720 KB Output is correct
25 Correct 10 ms 9732 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 13 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9724 KB Output is correct
4 Correct 9 ms 9592 KB Output is correct
5 Correct 9 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 12 ms 9692 KB Output is correct
11 Correct 11 ms 9720 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 12 ms 9720 KB Output is correct
14 Correct 13 ms 9720 KB Output is correct
15 Correct 12 ms 9720 KB Output is correct
16 Correct 7 ms 9720 KB Output is correct
17 Correct 13 ms 9720 KB Output is correct
18 Correct 11 ms 9848 KB Output is correct
19 Correct 11 ms 9848 KB Output is correct
20 Correct 15 ms 10232 KB Output is correct
21 Correct 15 ms 10232 KB Output is correct
22 Correct 50 ms 13896 KB Output is correct
23 Correct 45 ms 13864 KB Output is correct
24 Correct 50 ms 13904 KB Output is correct
25 Correct 46 ms 13764 KB Output is correct
26 Correct 50 ms 13804 KB Output is correct
27 Correct 44 ms 13804 KB Output is correct
28 Correct 47 ms 13808 KB Output is correct
29 Correct 47 ms 13780 KB Output is correct
30 Correct 47 ms 13736 KB Output is correct
31 Correct 50 ms 13828 KB Output is correct
32 Correct 50 ms 13808 KB Output is correct
33 Correct 46 ms 13808 KB Output is correct
34 Correct 47 ms 13808 KB Output is correct
35 Correct 11 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 47 ms 13808 KB Output is correct
38 Correct 47 ms 13808 KB Output is correct
39 Correct 47 ms 13804 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 9720 KB Output is correct
2 Correct 10 ms 9724 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 86 ms 19064 KB Output is correct
6 Correct 66 ms 14328 KB Output is correct
7 Correct 83 ms 19064 KB Output is correct
8 Correct 51 ms 13828 KB Output is correct
9 Correct 88 ms 19164 KB Output is correct
10 Correct 81 ms 15992 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 10 ms 9724 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9848 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 13 ms 9720 KB Output is correct
25 Correct 10 ms 9732 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 13 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 11 ms 9720 KB Output is correct
38 Correct 11 ms 9720 KB Output is correct
39 Correct 10 ms 9720 KB Output is correct
40 Correct 11 ms 9848 KB Output is correct
41 Correct 11 ms 9848 KB Output is correct
42 Correct 11 ms 9848 KB Output is correct
43 Correct 11 ms 9848 KB Output is correct
44 Correct 13 ms 9848 KB Output is correct
45 Correct 11 ms 9852 KB Output is correct
46 Correct 11 ms 9720 KB Output is correct
47 Correct 11 ms 9720 KB Output is correct
48 Correct 11 ms 9852 KB Output is correct
49 Correct 12 ms 9848 KB Output is correct
50 Correct 11 ms 9720 KB Output is correct
51 Correct 12 ms 9720 KB Output is correct
52 Correct 16 ms 9848 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 10 ms 9724 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9848 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 13 ms 9720 KB Output is correct
25 Correct 10 ms 9732 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 13 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 10 ms 9724 KB Output is correct
38 Correct 9 ms 9592 KB Output is correct
39 Correct 9 ms 9720 KB Output is correct
40 Correct 10 ms 9720 KB Output is correct
41 Correct 10 ms 9720 KB Output is correct
42 Correct 10 ms 9720 KB Output is correct
43 Correct 10 ms 9720 KB Output is correct
44 Correct 12 ms 9692 KB Output is correct
45 Correct 11 ms 9720 KB Output is correct
46 Correct 10 ms 9720 KB Output is correct
47 Correct 12 ms 9720 KB Output is correct
48 Correct 13 ms 9720 KB Output is correct
49 Correct 12 ms 9720 KB Output is correct
50 Correct 7 ms 9720 KB Output is correct
51 Correct 13 ms 9720 KB Output is correct
52 Correct 11 ms 9848 KB Output is correct
53 Correct 11 ms 9848 KB Output is correct
54 Correct 15 ms 10232 KB Output is correct
55 Correct 15 ms 10232 KB Output is correct
56 Correct 50 ms 13896 KB Output is correct
57 Correct 45 ms 13864 KB Output is correct
58 Correct 50 ms 13904 KB Output is correct
59 Correct 46 ms 13764 KB Output is correct
60 Correct 50 ms 13804 KB Output is correct
61 Correct 44 ms 13804 KB Output is correct
62 Correct 47 ms 13808 KB Output is correct
63 Correct 47 ms 13780 KB Output is correct
64 Correct 47 ms 13736 KB Output is correct
65 Correct 50 ms 13828 KB Output is correct
66 Correct 50 ms 13808 KB Output is correct
67 Correct 46 ms 13808 KB Output is correct
68 Correct 47 ms 13808 KB Output is correct
69 Correct 11 ms 9720 KB Output is correct
70 Correct 10 ms 9720 KB Output is correct
71 Correct 47 ms 13808 KB Output is correct
72 Correct 47 ms 13808 KB Output is correct
73 Correct 47 ms 13804 KB Output is correct
74 Correct 11 ms 9720 KB Output is correct
75 Correct 10 ms 9724 KB Output is correct
76 Correct 10 ms 9720 KB Output is correct
77 Correct 10 ms 9720 KB Output is correct
78 Correct 86 ms 19064 KB Output is correct
79 Correct 66 ms 14328 KB Output is correct
80 Correct 83 ms 19064 KB Output is correct
81 Correct 51 ms 13828 KB Output is correct
82 Correct 88 ms 19164 KB Output is correct
83 Correct 81 ms 15992 KB Output is correct
84 Correct 11 ms 9720 KB Output is correct
85 Correct 11 ms 9720 KB Output is correct
86 Correct 10 ms 9720 KB Output is correct
87 Correct 11 ms 9848 KB Output is correct
88 Correct 11 ms 9848 KB Output is correct
89 Correct 11 ms 9848 KB Output is correct
90 Correct 11 ms 9848 KB Output is correct
91 Correct 13 ms 9848 KB Output is correct
92 Correct 11 ms 9852 KB Output is correct
93 Correct 11 ms 9720 KB Output is correct
94 Correct 11 ms 9720 KB Output is correct
95 Correct 11 ms 9852 KB Output is correct
96 Correct 12 ms 9848 KB Output is correct
97 Correct 11 ms 9720 KB Output is correct
98 Correct 12 ms 9720 KB Output is correct
99 Correct 16 ms 9848 KB Output is correct
100 Correct 11 ms 9820 KB Output is correct
101 Correct 16 ms 10616 KB Output is correct
102 Correct 16 ms 10236 KB Output is correct
103 Correct 99 ms 19064 KB Output is correct
104 Correct 96 ms 19164 KB Output is correct
105 Correct 93 ms 16504 KB Output is correct
106 Correct 84 ms 19192 KB Output is correct
107 Correct 74 ms 14388 KB Output is correct
108 Correct 73 ms 14804 KB Output is correct
109 Correct 49 ms 14064 KB Output is correct
110 Correct 48 ms 13808 KB Output is correct
111 Correct 85 ms 18424 KB Output is correct
112 Correct 96 ms 17756 KB Output is correct
113 Correct 68 ms 14428 KB Output is correct
114 Correct 87 ms 19192 KB Output is correct
115 Correct 90 ms 19120 KB Output is correct