Submission #395335

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
395335	2021-04-28T08:38:34 Z	ja_kingy	Arranging Shoes (IOI19_shoes)	C++14	100 / 100	99 ms	19528 KB

shoes

#include "shoes.h"
using namespace std;

const int mxN = 2e5+10;
vector<int> of_type[2*mxN];
int bit[mxN];

void upd(int x) {for (x++; x<mxN; x+=x&-x) bit[x]++;}

int qry(int x) {
	int res = 0;
	for (x++; x; x-=x&-x) res += bit[x];
	return res;
}

long long count_swaps(std::vector<int> s) {
	long long ans = 0;
	for (int i = s.size(); i--;) {
		of_type[s[i]+mxN].push_back(i);
	}
	for (int i = 0; i < s.size(); ++i) {
		if (of_type[s[i]+mxN].size() && i == of_type[s[i]+mxN].back()) {
			int x = of_type[mxN-s[i]].back();
			ans += x - i + (s[i] > 0) - qry(x) + qry(i) - 1;
			upd(x);
			of_type[s[i]+mxN].pop_back();
			of_type[mxN-s[i]].pop_back();
		}
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:21:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |  for (int i = 0; i < s.size(); ++i) {
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	9676 KB	Output is correct
2	Correct	7 ms	9676 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	9676 KB	Output is correct
2	Correct	7 ms	9676 KB	Output is correct
3	Correct	6 ms	9668 KB	Output is correct
4	Correct	6 ms	9676 KB	Output is correct
5	Correct	6 ms	9676 KB	Output is correct
6	Correct	6 ms	9616 KB	Output is correct
7	Correct	6 ms	9676 KB	Output is correct
8	Correct	6 ms	9676 KB	Output is correct
9	Correct	6 ms	9676 KB	Output is correct
10	Correct	6 ms	9676 KB	Output is correct
11	Correct	6 ms	9676 KB	Output is correct
12	Correct	6 ms	9676 KB	Output is correct
13	Correct	6 ms	9672 KB	Output is correct
14	Correct	6 ms	9688 KB	Output is correct
15	Correct	7 ms	9676 KB	Output is correct
16	Correct	6 ms	9680 KB	Output is correct
17	Correct	7 ms	9676 KB	Output is correct
18	Correct	6 ms	9676 KB	Output is correct
19	Correct	7 ms	9676 KB	Output is correct
20	Correct	6 ms	9676 KB	Output is correct
21	Correct	6 ms	9676 KB	Output is correct
22	Correct	6 ms	9716 KB	Output is correct
23	Correct	6 ms	9652 KB	Output is correct
24	Correct	6 ms	9676 KB	Output is correct
25	Correct	6 ms	9676 KB	Output is correct
26	Correct	6 ms	9604 KB	Output is correct
27	Correct	6 ms	9676 KB	Output is correct
28	Correct	6 ms	9676 KB	Output is correct
29	Correct	6 ms	9676 KB	Output is correct
30	Correct	6 ms	9676 KB	Output is correct
31	Correct	6 ms	9676 KB	Output is correct
32	Correct	7 ms	9676 KB	Output is correct
33	Correct	6 ms	9676 KB	Output is correct
34	Correct	7 ms	9676 KB	Output is correct
35	Correct	7 ms	9676 KB	Output is correct
36	Correct	7 ms	9668 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	9676 KB	Output is correct
2	Correct	7 ms	9676 KB	Output is correct
3	Correct	6 ms	9676 KB	Output is correct
4	Correct	5 ms	9676 KB	Output is correct
5	Correct	7 ms	9676 KB	Output is correct
6	Correct	6 ms	9676 KB	Output is correct
7	Correct	6 ms	9676 KB	Output is correct
8	Correct	7 ms	9676 KB	Output is correct
9	Correct	6 ms	9676 KB	Output is correct
10	Correct	6 ms	9676 KB	Output is correct
11	Correct	6 ms	9676 KB	Output is correct
12	Correct	6 ms	9676 KB	Output is correct
13	Correct	6 ms	9676 KB	Output is correct
14	Correct	6 ms	9676 KB	Output is correct
15	Correct	6 ms	9676 KB	Output is correct
16	Correct	7 ms	9676 KB	Output is correct
17	Correct	7 ms	9728 KB	Output is correct
18	Correct	6 ms	9744 KB	Output is correct
19	Correct	6 ms	9676 KB	Output is correct
20	Correct	10 ms	10016 KB	Output is correct
21	Correct	10 ms	10060 KB	Output is correct
22	Correct	43 ms	12856 KB	Output is correct
23	Correct	41 ms	14276 KB	Output is correct
24	Correct	42 ms	14188 KB	Output is correct
25	Correct	38 ms	13548 KB	Output is correct
26	Correct	43 ms	14168 KB	Output is correct
27	Correct	39 ms	14032 KB	Output is correct
28	Correct	49 ms	13800 KB	Output is correct
29	Correct	45 ms	13776 KB	Output is correct
30	Correct	39 ms	13780 KB	Output is correct
31	Correct	43 ms	14172 KB	Output is correct
32	Correct	48 ms	13756 KB	Output is correct
33	Correct	44 ms	13548 KB	Output is correct
34	Correct	40 ms	13772 KB	Output is correct
35	Correct	6 ms	9688 KB	Output is correct
36	Correct	6 ms	9688 KB	Output is correct
37	Correct	42 ms	13772 KB	Output is correct
38	Correct	43 ms	13764 KB	Output is correct
39	Correct	41 ms	13756 KB	Output is correct

Subtask #4
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	9676 KB	Output is correct
2	Correct	5 ms	9676 KB	Output is correct
3	Correct	6 ms	9676 KB	Output is correct
4	Correct	7 ms	9676 KB	Output is correct
5	Correct	88 ms	17876 KB	Output is correct
6	Correct	62 ms	14428 KB	Output is correct
7	Correct	80 ms	19016 KB	Output is correct
8	Correct	41 ms	13804 KB	Output is correct
9	Correct	66 ms	19020 KB	Output is correct
10	Correct	69 ms	16064 KB	Output is correct

Subtask #5
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	9676 KB	Output is correct
2	Correct	7 ms	9676 KB	Output is correct
3	Correct	6 ms	9668 KB	Output is correct
4	Correct	6 ms	9676 KB	Output is correct
5	Correct	6 ms	9676 KB	Output is correct
6	Correct	6 ms	9616 KB	Output is correct
7	Correct	6 ms	9676 KB	Output is correct
8	Correct	6 ms	9676 KB	Output is correct
9	Correct	6 ms	9676 KB	Output is correct
10	Correct	6 ms	9676 KB	Output is correct
11	Correct	6 ms	9676 KB	Output is correct
12	Correct	6 ms	9676 KB	Output is correct
13	Correct	6 ms	9672 KB	Output is correct
14	Correct	6 ms	9688 KB	Output is correct
15	Correct	7 ms	9676 KB	Output is correct
16	Correct	6 ms	9680 KB	Output is correct
17	Correct	7 ms	9676 KB	Output is correct
18	Correct	6 ms	9676 KB	Output is correct
19	Correct	7 ms	9676 KB	Output is correct
20	Correct	6 ms	9676 KB	Output is correct
21	Correct	6 ms	9676 KB	Output is correct
22	Correct	6 ms	9716 KB	Output is correct
23	Correct	6 ms	9652 KB	Output is correct
24	Correct	6 ms	9676 KB	Output is correct
25	Correct	6 ms	9676 KB	Output is correct
26	Correct	6 ms	9604 KB	Output is correct
27	Correct	6 ms	9676 KB	Output is correct
28	Correct	6 ms	9676 KB	Output is correct
29	Correct	6 ms	9676 KB	Output is correct
30	Correct	6 ms	9676 KB	Output is correct
31	Correct	6 ms	9676 KB	Output is correct
32	Correct	7 ms	9676 KB	Output is correct
33	Correct	6 ms	9676 KB	Output is correct
34	Correct	7 ms	9676 KB	Output is correct
35	Correct	7 ms	9676 KB	Output is correct
36	Correct	7 ms	9668 KB	Output is correct
37	Correct	6 ms	9676 KB	Output is correct
38	Correct	6 ms	9676 KB	Output is correct
39	Correct	7 ms	9676 KB	Output is correct
40	Correct	6 ms	9676 KB	Output is correct
41	Correct	7 ms	9676 KB	Output is correct
42	Correct	6 ms	9676 KB	Output is correct
43	Correct	6 ms	9680 KB	Output is correct
44	Correct	7 ms	9680 KB	Output is correct
45	Correct	7 ms	9676 KB	Output is correct
46	Correct	6 ms	9676 KB	Output is correct
47	Correct	7 ms	9676 KB	Output is correct
48	Correct	6 ms	9676 KB	Output is correct
49	Correct	6 ms	9684 KB	Output is correct
50	Correct	6 ms	9676 KB	Output is correct
51	Correct	6 ms	9680 KB	Output is correct
52	Correct	6 ms	9680 KB	Output is correct

Subtask #6
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	9676 KB	Output is correct
2	Correct	7 ms	9676 KB	Output is correct
3	Correct	6 ms	9668 KB	Output is correct
4	Correct	6 ms	9676 KB	Output is correct
5	Correct	6 ms	9676 KB	Output is correct
6	Correct	6 ms	9616 KB	Output is correct
7	Correct	6 ms	9676 KB	Output is correct
8	Correct	6 ms	9676 KB	Output is correct
9	Correct	6 ms	9676 KB	Output is correct
10	Correct	6 ms	9676 KB	Output is correct
11	Correct	6 ms	9676 KB	Output is correct
12	Correct	6 ms	9676 KB	Output is correct
13	Correct	6 ms	9672 KB	Output is correct
14	Correct	6 ms	9688 KB	Output is correct
15	Correct	7 ms	9676 KB	Output is correct
16	Correct	6 ms	9680 KB	Output is correct
17	Correct	7 ms	9676 KB	Output is correct
18	Correct	6 ms	9676 KB	Output is correct
19	Correct	7 ms	9676 KB	Output is correct
20	Correct	6 ms	9676 KB	Output is correct
21	Correct	6 ms	9676 KB	Output is correct
22	Correct	6 ms	9716 KB	Output is correct
23	Correct	6 ms	9652 KB	Output is correct
24	Correct	6 ms	9676 KB	Output is correct
25	Correct	6 ms	9676 KB	Output is correct
26	Correct	6 ms	9604 KB	Output is correct
27	Correct	6 ms	9676 KB	Output is correct
28	Correct	6 ms	9676 KB	Output is correct
29	Correct	6 ms	9676 KB	Output is correct
30	Correct	6 ms	9676 KB	Output is correct
31	Correct	6 ms	9676 KB	Output is correct
32	Correct	7 ms	9676 KB	Output is correct
33	Correct	6 ms	9676 KB	Output is correct
34	Correct	7 ms	9676 KB	Output is correct
35	Correct	7 ms	9676 KB	Output is correct
36	Correct	7 ms	9668 KB	Output is correct
37	Correct	6 ms	9676 KB	Output is correct
38	Correct	5 ms	9676 KB	Output is correct
39	Correct	7 ms	9676 KB	Output is correct
40	Correct	6 ms	9676 KB	Output is correct
41	Correct	6 ms	9676 KB	Output is correct
42	Correct	7 ms	9676 KB	Output is correct
43	Correct	6 ms	9676 KB	Output is correct
44	Correct	6 ms	9676 KB	Output is correct
45	Correct	6 ms	9676 KB	Output is correct
46	Correct	6 ms	9676 KB	Output is correct
47	Correct	6 ms	9676 KB	Output is correct
48	Correct	6 ms	9676 KB	Output is correct
49	Correct	6 ms	9676 KB	Output is correct
50	Correct	7 ms	9676 KB	Output is correct
51	Correct	7 ms	9728 KB	Output is correct
52	Correct	6 ms	9744 KB	Output is correct
53	Correct	6 ms	9676 KB	Output is correct
54	Correct	10 ms	10016 KB	Output is correct
55	Correct	10 ms	10060 KB	Output is correct
56	Correct	43 ms	12856 KB	Output is correct
57	Correct	41 ms	14276 KB	Output is correct
58	Correct	42 ms	14188 KB	Output is correct
59	Correct	38 ms	13548 KB	Output is correct
60	Correct	43 ms	14168 KB	Output is correct
61	Correct	39 ms	14032 KB	Output is correct
62	Correct	49 ms	13800 KB	Output is correct
63	Correct	45 ms	13776 KB	Output is correct
64	Correct	39 ms	13780 KB	Output is correct
65	Correct	43 ms	14172 KB	Output is correct
66	Correct	48 ms	13756 KB	Output is correct
67	Correct	44 ms	13548 KB	Output is correct
68	Correct	40 ms	13772 KB	Output is correct
69	Correct	6 ms	9688 KB	Output is correct
70	Correct	6 ms	9688 KB	Output is correct
71	Correct	42 ms	13772 KB	Output is correct
72	Correct	43 ms	13764 KB	Output is correct
73	Correct	41 ms	13756 KB	Output is correct
74	Correct	6 ms	9676 KB	Output is correct
75	Correct	5 ms	9676 KB	Output is correct
76	Correct	6 ms	9676 KB	Output is correct
77	Correct	7 ms	9676 KB	Output is correct
78	Correct	88 ms	17876 KB	Output is correct
79	Correct	62 ms	14428 KB	Output is correct
80	Correct	80 ms	19016 KB	Output is correct
81	Correct	41 ms	13804 KB	Output is correct
82	Correct	66 ms	19020 KB	Output is correct
83	Correct	69 ms	16064 KB	Output is correct
84	Correct	6 ms	9676 KB	Output is correct
85	Correct	6 ms	9676 KB	Output is correct
86	Correct	7 ms	9676 KB	Output is correct
87	Correct	6 ms	9676 KB	Output is correct
88	Correct	7 ms	9676 KB	Output is correct
89	Correct	6 ms	9676 KB	Output is correct
90	Correct	6 ms	9680 KB	Output is correct
91	Correct	7 ms	9680 KB	Output is correct
92	Correct	7 ms	9676 KB	Output is correct
93	Correct	6 ms	9676 KB	Output is correct
94	Correct	7 ms	9676 KB	Output is correct
95	Correct	6 ms	9676 KB	Output is correct
96	Correct	6 ms	9684 KB	Output is correct
97	Correct	6 ms	9676 KB	Output is correct
98	Correct	6 ms	9680 KB	Output is correct
99	Correct	6 ms	9680 KB	Output is correct
100	Correct	6 ms	9808 KB	Output is correct
101	Correct	13 ms	10504 KB	Output is correct
102	Correct	12 ms	10188 KB	Output is correct
103	Correct	99 ms	19400 KB	Output is correct
104	Correct	70 ms	19528 KB	Output is correct
105	Correct	86 ms	16748 KB	Output is correct
106	Correct	67 ms	19020 KB	Output is correct
107	Correct	73 ms	14800 KB	Output is correct
108	Correct	62 ms	15172 KB	Output is correct
109	Correct	39 ms	14012 KB	Output is correct
110	Correct	40 ms	13804 KB	Output is correct
111	Correct	75 ms	18372 KB	Output is correct
112	Correct	84 ms	18060 KB	Output is correct
113	Correct	60 ms	14424 KB	Output is correct
114	Correct	66 ms	19032 KB	Output is correct
115	Correct	70 ms	19144 KB	Output is correct

Submission #395335

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