답안 #143481

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
143481	2019-08-14T08:52:56 Z	dolphingarlic	Arranging Shoes (IOI19_shoes)	C++14	100 / 100	249 ms	139032 KB

shoes

#include "shoes.h"
#include <queue>

int n;
long long bit[200001];
std::queue<int> left[100001], right[100001];

void update(int pos) { for (int i = pos; i <= n; i += (i & (-i))) bit[i]++; }
long long query(int l, int r) {
	long long ans = 0;
	for (int i = r; i > 0; i -= (i & (-i))) ans += bit[i];
	for (int i = l; i > 0; i -= (i & (-i))) ans -= bit[i];
	return ans;
}

long long count_swaps(std::vector<int> s) {
	n = s.size();
	for (int i = 0; i < n; i++) {
		if (s[i] < 0) left[-s[i]].push(i + 1);
		else right[s[i]].push(i + 1);
	}

	long long ans = 0;
	for (int i = 0; i < n; i++) {
		if (s[i] < 0) {
			if (left[-s[i]].front() == i + 1) {
				int r_indx = right[-s[i]].front();
				right[-s[i]].pop();
				left[-s[i]].pop();

				ans += r_indx - i - 2 - query(i + 1, r_indx);
				update(r_indx);
			}
		} else {
			if (right[s[i]].front() == i + 1) {
				int l_indx = left[s[i]].front();
				right[s[i]].pop();
				left[s[i]].pop();

				ans += l_indx - i - 1 - query(i + 1, l_indx);
				update(l_indx);
			}
		}
	}
	return ans;
}

Subtask #1

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	134980 KB	Output is correct
2	Correct	136 ms	134976 KB	Output is correct

Subtask #2

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	134980 KB	Output is correct
2	Correct	136 ms	134976 KB	Output is correct
3	Correct	137 ms	134924 KB	Output is correct
4	Correct	138 ms	135028 KB	Output is correct
5	Correct	138 ms	134948 KB	Output is correct
6	Correct	138 ms	134880 KB	Output is correct
7	Correct	139 ms	134904 KB	Output is correct
8	Correct	138 ms	134908 KB	Output is correct
9	Correct	138 ms	134940 KB	Output is correct
10	Correct	138 ms	134932 KB	Output is correct
11	Correct	138 ms	134904 KB	Output is correct
12	Correct	139 ms	134956 KB	Output is correct
13	Correct	137 ms	134904 KB	Output is correct
14	Correct	139 ms	134952 KB	Output is correct
15	Correct	147 ms	134880 KB	Output is correct
16	Correct	141 ms	135076 KB	Output is correct
17	Correct	143 ms	134912 KB	Output is correct
18	Correct	139 ms	134876 KB	Output is correct
19	Correct	139 ms	134904 KB	Output is correct
20	Correct	139 ms	134884 KB	Output is correct
21	Correct	137 ms	135032 KB	Output is correct
22	Correct	139 ms	135120 KB	Output is correct
23	Correct	138 ms	135036 KB	Output is correct
24	Correct	153 ms	135032 KB	Output is correct
25	Correct	139 ms	134924 KB	Output is correct
26	Correct	157 ms	134992 KB	Output is correct
27	Correct	168 ms	134956 KB	Output is correct
28	Correct	168 ms	134988 KB	Output is correct
29	Correct	162 ms	134972 KB	Output is correct
30	Correct	138 ms	135032 KB	Output is correct
31	Correct	136 ms	134904 KB	Output is correct
32	Correct	140 ms	134904 KB	Output is correct
33	Correct	141 ms	134904 KB	Output is correct
34	Correct	138 ms	134904 KB	Output is correct
35	Correct	137 ms	134988 KB	Output is correct
36	Correct	137 ms	134904 KB	Output is correct

Subtask #3

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	134980 KB	Output is correct
2	Correct	136 ms	134976 KB	Output is correct
3	Correct	140 ms	134920 KB	Output is correct
4	Correct	143 ms	134880 KB	Output is correct
5	Correct	137 ms	134988 KB	Output is correct
6	Correct	139 ms	135032 KB	Output is correct
7	Correct	138 ms	134904 KB	Output is correct
8	Correct	140 ms	134988 KB	Output is correct
9	Correct	137 ms	134996 KB	Output is correct
10	Correct	142 ms	135032 KB	Output is correct
11	Correct	136 ms	134904 KB	Output is correct
12	Correct	137 ms	134912 KB	Output is correct
13	Correct	140 ms	134908 KB	Output is correct
14	Correct	138 ms	134940 KB	Output is correct
15	Correct	140 ms	134948 KB	Output is correct
16	Correct	163 ms	134904 KB	Output is correct
17	Correct	150 ms	134968 KB	Output is correct
18	Correct	151 ms	135004 KB	Output is correct
19	Correct	151 ms	134904 KB	Output is correct
20	Correct	154 ms	135416 KB	Output is correct
21	Correct	155 ms	135424 KB	Output is correct
22	Correct	193 ms	138832 KB	Output is correct
23	Correct	183 ms	139032 KB	Output is correct
24	Correct	187 ms	138872 KB	Output is correct
25	Correct	186 ms	138076 KB	Output is correct
26	Correct	183 ms	139000 KB	Output is correct
27	Correct	181 ms	138872 KB	Output is correct
28	Correct	181 ms	138104 KB	Output is correct
29	Correct	220 ms	138076 KB	Output is correct
30	Correct	181 ms	138088 KB	Output is correct
31	Correct	183 ms	138872 KB	Output is correct
32	Correct	219 ms	138148 KB	Output is correct
33	Correct	205 ms	138364 KB	Output is correct
34	Correct	182 ms	138056 KB	Output is correct
35	Correct	140 ms	134948 KB	Output is correct
36	Correct	139 ms	134988 KB	Output is correct
37	Correct	179 ms	138204 KB	Output is correct
38	Correct	184 ms	138120 KB	Output is correct
39	Correct	191 ms	138196 KB	Output is correct

Subtask #4

15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	138 ms	134904 KB	Output is correct
2	Correct	139 ms	134904 KB	Output is correct
3	Correct	146 ms	134908 KB	Output is correct
4	Correct	164 ms	134960 KB	Output is correct
5	Correct	234 ms	137336 KB	Output is correct
6	Correct	198 ms	137428 KB	Output is correct
7	Correct	249 ms	137332 KB	Output is correct
8	Correct	182 ms	138156 KB	Output is correct
9	Correct	233 ms	137360 KB	Output is correct
10	Correct	220 ms	137320 KB	Output is correct

Subtask #5

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	134980 KB	Output is correct
2	Correct	136 ms	134976 KB	Output is correct
3	Correct	137 ms	134924 KB	Output is correct
4	Correct	138 ms	135028 KB	Output is correct
5	Correct	138 ms	134948 KB	Output is correct
6	Correct	138 ms	134880 KB	Output is correct
7	Correct	139 ms	134904 KB	Output is correct
8	Correct	138 ms	134908 KB	Output is correct
9	Correct	138 ms	134940 KB	Output is correct
10	Correct	138 ms	134932 KB	Output is correct
11	Correct	138 ms	134904 KB	Output is correct
12	Correct	139 ms	134956 KB	Output is correct
13	Correct	137 ms	134904 KB	Output is correct
14	Correct	139 ms	134952 KB	Output is correct
15	Correct	147 ms	134880 KB	Output is correct
16	Correct	141 ms	135076 KB	Output is correct
17	Correct	143 ms	134912 KB	Output is correct
18	Correct	139 ms	134876 KB	Output is correct
19	Correct	139 ms	134904 KB	Output is correct
20	Correct	139 ms	134884 KB	Output is correct
21	Correct	137 ms	135032 KB	Output is correct
22	Correct	139 ms	135120 KB	Output is correct
23	Correct	138 ms	135036 KB	Output is correct
24	Correct	153 ms	135032 KB	Output is correct
25	Correct	139 ms	134924 KB	Output is correct
26	Correct	157 ms	134992 KB	Output is correct
27	Correct	168 ms	134956 KB	Output is correct
28	Correct	168 ms	134988 KB	Output is correct
29	Correct	162 ms	134972 KB	Output is correct
30	Correct	138 ms	135032 KB	Output is correct
31	Correct	136 ms	134904 KB	Output is correct
32	Correct	140 ms	134904 KB	Output is correct
33	Correct	141 ms	134904 KB	Output is correct
34	Correct	138 ms	134904 KB	Output is correct
35	Correct	137 ms	134988 KB	Output is correct
36	Correct	137 ms	134904 KB	Output is correct
37	Correct	139 ms	135016 KB	Output is correct
38	Correct	138 ms	134888 KB	Output is correct
39	Correct	138 ms	134996 KB	Output is correct
40	Correct	167 ms	134860 KB	Output is correct
41	Correct	146 ms	135116 KB	Output is correct
42	Correct	139 ms	135072 KB	Output is correct
43	Correct	138 ms	134852 KB	Output is correct
44	Correct	139 ms	134904 KB	Output is correct
45	Correct	139 ms	135004 KB	Output is correct
46	Correct	156 ms	134904 KB	Output is correct
47	Correct	139 ms	135004 KB	Output is correct
48	Correct	143 ms	135032 KB	Output is correct
49	Correct	138 ms	134932 KB	Output is correct
50	Correct	150 ms	134948 KB	Output is correct
51	Correct	152 ms	134976 KB	Output is correct
52	Correct	143 ms	134892 KB	Output is correct

Subtask #6

15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	134980 KB	Output is correct
2	Correct	136 ms	134976 KB	Output is correct
3	Correct	137 ms	134924 KB	Output is correct
4	Correct	138 ms	135028 KB	Output is correct
5	Correct	138 ms	134948 KB	Output is correct
6	Correct	138 ms	134880 KB	Output is correct
7	Correct	139 ms	134904 KB	Output is correct
8	Correct	138 ms	134908 KB	Output is correct
9	Correct	138 ms	134940 KB	Output is correct
10	Correct	138 ms	134932 KB	Output is correct
11	Correct	138 ms	134904 KB	Output is correct
12	Correct	139 ms	134956 KB	Output is correct
13	Correct	137 ms	134904 KB	Output is correct
14	Correct	139 ms	134952 KB	Output is correct
15	Correct	147 ms	134880 KB	Output is correct
16	Correct	141 ms	135076 KB	Output is correct
17	Correct	143 ms	134912 KB	Output is correct
18	Correct	139 ms	134876 KB	Output is correct
19	Correct	139 ms	134904 KB	Output is correct
20	Correct	139 ms	134884 KB	Output is correct
21	Correct	137 ms	135032 KB	Output is correct
22	Correct	139 ms	135120 KB	Output is correct
23	Correct	138 ms	135036 KB	Output is correct
24	Correct	153 ms	135032 KB	Output is correct
25	Correct	139 ms	134924 KB	Output is correct
26	Correct	157 ms	134992 KB	Output is correct
27	Correct	168 ms	134956 KB	Output is correct
28	Correct	168 ms	134988 KB	Output is correct
29	Correct	162 ms	134972 KB	Output is correct
30	Correct	138 ms	135032 KB	Output is correct
31	Correct	136 ms	134904 KB	Output is correct
32	Correct	140 ms	134904 KB	Output is correct
33	Correct	141 ms	134904 KB	Output is correct
34	Correct	138 ms	134904 KB	Output is correct
35	Correct	137 ms	134988 KB	Output is correct
36	Correct	137 ms	134904 KB	Output is correct
37	Correct	140 ms	134920 KB	Output is correct
38	Correct	143 ms	134880 KB	Output is correct
39	Correct	137 ms	134988 KB	Output is correct
40	Correct	139 ms	135032 KB	Output is correct
41	Correct	138 ms	134904 KB	Output is correct
42	Correct	140 ms	134988 KB	Output is correct
43	Correct	137 ms	134996 KB	Output is correct
44	Correct	142 ms	135032 KB	Output is correct
45	Correct	136 ms	134904 KB	Output is correct
46	Correct	137 ms	134912 KB	Output is correct
47	Correct	140 ms	134908 KB	Output is correct
48	Correct	138 ms	134940 KB	Output is correct
49	Correct	140 ms	134948 KB	Output is correct
50	Correct	163 ms	134904 KB	Output is correct
51	Correct	150 ms	134968 KB	Output is correct
52	Correct	151 ms	135004 KB	Output is correct
53	Correct	151 ms	134904 KB	Output is correct
54	Correct	154 ms	135416 KB	Output is correct
55	Correct	155 ms	135424 KB	Output is correct
56	Correct	193 ms	138832 KB	Output is correct
57	Correct	183 ms	139032 KB	Output is correct
58	Correct	187 ms	138872 KB	Output is correct
59	Correct	186 ms	138076 KB	Output is correct
60	Correct	183 ms	139000 KB	Output is correct
61	Correct	181 ms	138872 KB	Output is correct
62	Correct	181 ms	138104 KB	Output is correct
63	Correct	220 ms	138076 KB	Output is correct
64	Correct	181 ms	138088 KB	Output is correct
65	Correct	183 ms	138872 KB	Output is correct
66	Correct	219 ms	138148 KB	Output is correct
67	Correct	205 ms	138364 KB	Output is correct
68	Correct	182 ms	138056 KB	Output is correct
69	Correct	140 ms	134948 KB	Output is correct
70	Correct	139 ms	134988 KB	Output is correct
71	Correct	179 ms	138204 KB	Output is correct
72	Correct	184 ms	138120 KB	Output is correct
73	Correct	191 ms	138196 KB	Output is correct
74	Correct	138 ms	134904 KB	Output is correct
75	Correct	139 ms	134904 KB	Output is correct
76	Correct	146 ms	134908 KB	Output is correct
77	Correct	164 ms	134960 KB	Output is correct
78	Correct	234 ms	137336 KB	Output is correct
79	Correct	198 ms	137428 KB	Output is correct
80	Correct	249 ms	137332 KB	Output is correct
81	Correct	182 ms	138156 KB	Output is correct
82	Correct	233 ms	137360 KB	Output is correct
83	Correct	220 ms	137320 KB	Output is correct
84	Correct	139 ms	135016 KB	Output is correct
85	Correct	138 ms	134888 KB	Output is correct
86	Correct	138 ms	134996 KB	Output is correct
87	Correct	167 ms	134860 KB	Output is correct
88	Correct	146 ms	135116 KB	Output is correct
89	Correct	139 ms	135072 KB	Output is correct
90	Correct	138 ms	134852 KB	Output is correct
91	Correct	139 ms	134904 KB	Output is correct
92	Correct	139 ms	135004 KB	Output is correct
93	Correct	156 ms	134904 KB	Output is correct
94	Correct	139 ms	135004 KB	Output is correct
95	Correct	143 ms	135032 KB	Output is correct
96	Correct	138 ms	134932 KB	Output is correct
97	Correct	150 ms	134948 KB	Output is correct
98	Correct	152 ms	134976 KB	Output is correct
99	Correct	143 ms	134892 KB	Output is correct
100	Correct	148 ms	135036 KB	Output is correct
101	Correct	148 ms	135288 KB	Output is correct
102	Correct	144 ms	135296 KB	Output is correct
103	Correct	246 ms	138248 KB	Output is correct
104	Correct	230 ms	138104 KB	Output is correct
105	Correct	234 ms	138104 KB	Output is correct
106	Correct	235 ms	137464 KB	Output is correct
107	Correct	203 ms	138104 KB	Output is correct
108	Correct	208 ms	138076 KB	Output is correct
109	Correct	177 ms	138232 KB	Output is correct
110	Correct	180 ms	138104 KB	Output is correct
111	Correct	228 ms	137388 KB	Output is correct
112	Correct	237 ms	138232 KB	Output is correct
113	Correct	209 ms	137464 KB	Output is correct
114	Correct	232 ms	137432 KB	Output is correct
115	Correct	243 ms	137336 KB	Output is correct