Submission #173656

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
173656	2020-01-04T19:58:22 Z	lckcode	Arranging Shoes (IOI19_shoes)	C++14	100 / 100	190 ms	23832 KB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;
int bit[200005], n;
void upd (int x, int v) {
	for (;x <= 2*n; x += x & (-x)) bit[x] += v;
}
int sum (int x) {
	int res = 0;
	for (;x; x-= x & (-x)) res += bit[x];
	return res;
}
#define ll long long
set<int> s[200005];
int a[200005]; bool dead[200005];
long long count_swaps(std::vector<int> S) {
	// cout <<"DUH" << endl;
	ll ans = 0;
	// cout << "DU" << endl;
	n = S.size() / 2;
	// cout << n << endl;
	for (int i = 1; i <= 2*n; ++i) upd(i, 1);
	for (int i = 0; i < 2*n; ++i) a[i+1] = S[i];
	// cout << "yo" << endl;
	for (int i = 1; i <= 2*n; ++i)
		s[a[i]+n].insert(i);
	for (int i = 1; i <= n*2; ++i) {
		if (dead[i]) continue;
		int yo = *s[-a[i]+n].begin();
		s[-a[i]+n].erase(s[-a[i]+n].begin());
		s[a[i]+n].erase(s[a[i]+n].begin());
		ans += sum(yo-1) - sum(i);
		ans += (a[i] > 0);
		upd(i, -1);
		upd(yo, -1); dead[i] = dead[yo] = 1;
	}
	return ans;
}

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	10 ms	9720 KB	Output is correct
6	Correct	10 ms	9692 KB	Output is correct
7	Correct	10 ms	9724 KB	Output is correct
8	Correct	10 ms	9724 KB	Output is correct
9	Correct	10 ms	9764 KB	Output is correct
10	Correct	10 ms	9720 KB	Output is correct
11	Correct	10 ms	9720 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	9796 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	9724 KB	Output is correct
22	Correct	10 ms	9720 KB	Output is correct
23	Correct	10 ms	9720 KB	Output is correct
24	Correct	10 ms	9720 KB	Output is correct
25	Correct	10 ms	9740 KB	Output is correct
26	Correct	10 ms	9720 KB	Output is correct
27	Correct	10 ms	9768 KB	Output is correct
28	Correct	10 ms	9720 KB	Output is correct
29	Correct	10 ms	9848 KB	Output is correct
30	Correct	10 ms	9724 KB	Output is correct
31	Correct	10 ms	9720 KB	Output is correct
32	Correct	11 ms	9720 KB	Output is correct
33	Correct	10 ms	9720 KB	Output is correct
34	Correct	10 ms	9796 KB	Output is correct
35	Correct	10 ms	9692 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	9740 KB	Output is correct
4	Correct	10 ms	9720 KB	Output is correct
5	Correct	10 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	10 ms	9720 KB	Output is correct
11	Correct	10 ms	9720 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	11 ms	9848 KB	Output is correct
19	Correct	11 ms	9820 KB	Output is correct
20	Correct	18 ms	11128 KB	Output is correct
21	Correct	18 ms	11128 KB	Output is correct
22	Correct	97 ms	23672 KB	Output is correct
23	Correct	109 ms	23772 KB	Output is correct
24	Correct	101 ms	23740 KB	Output is correct
25	Correct	104 ms	23544 KB	Output is correct
26	Correct	98 ms	23672 KB	Output is correct
27	Correct	107 ms	23548 KB	Output is correct
28	Correct	104 ms	23672 KB	Output is correct
29	Correct	105 ms	23672 KB	Output is correct
30	Correct	105 ms	23772 KB	Output is correct
31	Correct	98 ms	23672 KB	Output is correct
32	Correct	105 ms	23676 KB	Output is correct
33	Correct	104 ms	23544 KB	Output is correct
34	Correct	105 ms	23672 KB	Output is correct
35	Correct	10 ms	9720 KB	Output is correct
36	Correct	10 ms	9720 KB	Output is correct
37	Correct	107 ms	23800 KB	Output is correct
38	Correct	106 ms	23672 KB	Output is correct
39	Correct	104 ms	23672 KB	Output is correct

Subtask #4
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	9820 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	106 ms	23800 KB	Output is correct
6	Correct	135 ms	23676 KB	Output is correct
7	Correct	107 ms	23720 KB	Output is correct
8	Correct	94 ms	23672 KB	Output is correct
9	Correct	100 ms	23648 KB	Output is correct
10	Correct	113 ms	23672 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	10 ms	9720 KB	Output is correct
6	Correct	10 ms	9692 KB	Output is correct
7	Correct	10 ms	9724 KB	Output is correct
8	Correct	10 ms	9724 KB	Output is correct
9	Correct	10 ms	9764 KB	Output is correct
10	Correct	10 ms	9720 KB	Output is correct
11	Correct	10 ms	9720 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	9796 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	9724 KB	Output is correct
22	Correct	10 ms	9720 KB	Output is correct
23	Correct	10 ms	9720 KB	Output is correct
24	Correct	10 ms	9720 KB	Output is correct
25	Correct	10 ms	9740 KB	Output is correct
26	Correct	10 ms	9720 KB	Output is correct
27	Correct	10 ms	9768 KB	Output is correct
28	Correct	10 ms	9720 KB	Output is correct
29	Correct	10 ms	9848 KB	Output is correct
30	Correct	10 ms	9724 KB	Output is correct
31	Correct	10 ms	9720 KB	Output is correct
32	Correct	11 ms	9720 KB	Output is correct
33	Correct	10 ms	9720 KB	Output is correct
34	Correct	10 ms	9796 KB	Output is correct
35	Correct	10 ms	9692 KB	Output is correct
36	Correct	10 ms	9720 KB	Output is correct
37	Correct	10 ms	9720 KB	Output is correct
38	Correct	10 ms	9720 KB	Output is correct
39	Correct	10 ms	9724 KB	Output is correct
40	Correct	10 ms	9720 KB	Output is correct
41	Correct	11 ms	9848 KB	Output is correct
42	Correct	10 ms	9848 KB	Output is correct
43	Correct	11 ms	9848 KB	Output is correct
44	Correct	11 ms	9820 KB	Output is correct
45	Correct	11 ms	9848 KB	Output is correct
46	Correct	11 ms	9848 KB	Output is correct
47	Correct	11 ms	9848 KB	Output is correct
48	Correct	11 ms	9848 KB	Output is correct
49	Correct	13 ms	9848 KB	Output is correct
50	Correct	11 ms	9848 KB	Output is correct
51	Correct	11 ms	9848 KB	Output is correct
52	Correct	11 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	10 ms	9720 KB	Output is correct
6	Correct	10 ms	9692 KB	Output is correct
7	Correct	10 ms	9724 KB	Output is correct
8	Correct	10 ms	9724 KB	Output is correct
9	Correct	10 ms	9764 KB	Output is correct
10	Correct	10 ms	9720 KB	Output is correct
11	Correct	10 ms	9720 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	9796 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	9724 KB	Output is correct
22	Correct	10 ms	9720 KB	Output is correct
23	Correct	10 ms	9720 KB	Output is correct
24	Correct	10 ms	9720 KB	Output is correct
25	Correct	10 ms	9740 KB	Output is correct
26	Correct	10 ms	9720 KB	Output is correct
27	Correct	10 ms	9768 KB	Output is correct
28	Correct	10 ms	9720 KB	Output is correct
29	Correct	10 ms	9848 KB	Output is correct
30	Correct	10 ms	9724 KB	Output is correct
31	Correct	10 ms	9720 KB	Output is correct
32	Correct	11 ms	9720 KB	Output is correct
33	Correct	10 ms	9720 KB	Output is correct
34	Correct	10 ms	9796 KB	Output is correct
35	Correct	10 ms	9692 KB	Output is correct
36	Correct	10 ms	9720 KB	Output is correct
37	Correct	10 ms	9740 KB	Output is correct
38	Correct	10 ms	9720 KB	Output is correct
39	Correct	10 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	10 ms	9720 KB	Output is correct
45	Correct	10 ms	9720 KB	Output is correct
46	Correct	10 ms	9720 KB	Output is correct
47	Correct	10 ms	9720 KB	Output is correct
48	Correct	10 ms	9720 KB	Output is correct
49	Correct	10 ms	9720 KB	Output is correct
50	Correct	10 ms	9720 KB	Output is correct
51	Correct	10 ms	9720 KB	Output is correct
52	Correct	11 ms	9848 KB	Output is correct
53	Correct	11 ms	9820 KB	Output is correct
54	Correct	18 ms	11128 KB	Output is correct
55	Correct	18 ms	11128 KB	Output is correct
56	Correct	97 ms	23672 KB	Output is correct
57	Correct	109 ms	23772 KB	Output is correct
58	Correct	101 ms	23740 KB	Output is correct
59	Correct	104 ms	23544 KB	Output is correct
60	Correct	98 ms	23672 KB	Output is correct
61	Correct	107 ms	23548 KB	Output is correct
62	Correct	104 ms	23672 KB	Output is correct
63	Correct	105 ms	23672 KB	Output is correct
64	Correct	105 ms	23772 KB	Output is correct
65	Correct	98 ms	23672 KB	Output is correct
66	Correct	105 ms	23676 KB	Output is correct
67	Correct	104 ms	23544 KB	Output is correct
68	Correct	105 ms	23672 KB	Output is correct
69	Correct	10 ms	9720 KB	Output is correct
70	Correct	10 ms	9720 KB	Output is correct
71	Correct	107 ms	23800 KB	Output is correct
72	Correct	106 ms	23672 KB	Output is correct
73	Correct	104 ms	23672 KB	Output is correct
74	Correct	10 ms	9820 KB	Output is correct
75	Correct	10 ms	9720 KB	Output is correct
76	Correct	10 ms	9720 KB	Output is correct
77	Correct	10 ms	9720 KB	Output is correct
78	Correct	106 ms	23800 KB	Output is correct
79	Correct	135 ms	23676 KB	Output is correct
80	Correct	107 ms	23720 KB	Output is correct
81	Correct	94 ms	23672 KB	Output is correct
82	Correct	100 ms	23648 KB	Output is correct
83	Correct	113 ms	23672 KB	Output is correct
84	Correct	10 ms	9720 KB	Output is correct
85	Correct	10 ms	9720 KB	Output is correct
86	Correct	10 ms	9724 KB	Output is correct
87	Correct	10 ms	9720 KB	Output is correct
88	Correct	11 ms	9848 KB	Output is correct
89	Correct	10 ms	9848 KB	Output is correct
90	Correct	11 ms	9848 KB	Output is correct
91	Correct	11 ms	9820 KB	Output is correct
92	Correct	11 ms	9848 KB	Output is correct
93	Correct	11 ms	9848 KB	Output is correct
94	Correct	11 ms	9848 KB	Output is correct
95	Correct	11 ms	9848 KB	Output is correct
96	Correct	13 ms	9848 KB	Output is correct
97	Correct	11 ms	9848 KB	Output is correct
98	Correct	11 ms	9848 KB	Output is correct
99	Correct	11 ms	9848 KB	Output is correct
100	Correct	11 ms	9848 KB	Output is correct
101	Correct	18 ms	11128 KB	Output is correct
102	Correct	19 ms	11128 KB	Output is correct
103	Correct	140 ms	23768 KB	Output is correct
104	Correct	107 ms	23720 KB	Output is correct
105	Correct	129 ms	23672 KB	Output is correct
106	Correct	103 ms	23832 KB	Output is correct
107	Correct	190 ms	23652 KB	Output is correct
108	Correct	120 ms	23672 KB	Output is correct
109	Correct	91 ms	23672 KB	Output is correct
110	Correct	107 ms	23672 KB	Output is correct
111	Correct	112 ms	23772 KB	Output is correct
112	Correct	144 ms	23800 KB	Output is correct
113	Correct	138 ms	23672 KB	Output is correct
114	Correct	94 ms	23676 KB	Output is correct
115	Correct	97 ms	23672 KB	Output is correct

Submission #173656

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 15.0 / 15.0

Subtask #5 20.0 / 20.0

Subtask #6 15.0 / 15.0

Subtask #1
10.0 / 10.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
15.0 / 15.0

Subtask #5
20.0 / 20.0

Subtask #6
15.0 / 15.0