답안 #231258

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
231258	2020-05-13T08:51:23 Z	peijar	Arranging Shoes (IOI19_shoes)	C++17	100 / 100	368 ms	76884 KB

shoes

#include <bits/stdc++.h>
using namespace std;

#define SZ(v) ((int)(v).size())
using ll = long long;

template<class T>
struct FenwickTree {
    vector<T> bit;
    int nb_elem;

    FenwickTree(int N) {
    	nb_elem = N;
    	bit.resize(nb_elem);
    	for (int i(0); i < nb_elem; ++i)
    		bit[i] = 0;
    }

    FenwickTree(vector<T> a) : FenwickTree(SZ(a)) {
        for (size_t i = 0; i < a.size(); i++)
            add(i, a[i]);
    }

    T sum(int r) {
        T ret = 0;
        for (; r >= 0; r = (r & (r + 1)) - 1)
            ret += bit[r];
        return ret;
    }

    T sum(int l, int r) {
        return sum(r) - sum(l - 1);
    }

    void add(int idx, T delta) {
        for (; idx < nb_elem; idx = idx | (idx + 1))
            bit[idx] += delta;
    }
};

ll count_swaps(vector<int> shoes)
{
	int nb_chaussures = SZ(shoes);

	FenwickTree<ll> fen = FenwickTree<ll>(nb_chaussures);
	ll nb_swaps(0);
	map<int, queue<int>> pos;
	pos[shoes[0]].push(0);
	for (int i(1); i < nb_chaussures; ++i)
	{
		if (pos.find(-shoes[i]) != pos.end() and SZ(pos[-shoes[i]]))
		{
			int where = pos[-shoes[i]].front(); pos[-shoes[i]].pop();

			nb_swaps += (i - where -1 + (shoes[i] < 0));
			nb_swaps -= fen.sum(where, i);
			fen.add(i, 1);
			fen.add(where, -1);
		}
		else
			pos[shoes[i]].push(i);
	}
	return nb_swaps;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	256 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	4 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	5 ms	256 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	5 ms	256 KB	Output is correct
22	Correct	4 ms	256 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	5 ms	384 KB	Output is correct
25	Correct	5 ms	384 KB	Output is correct
26	Correct	4 ms	256 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	4 ms	256 KB	Output is correct
29	Correct	4 ms	384 KB	Output is correct
30	Correct	4 ms	256 KB	Output is correct
31	Correct	5 ms	384 KB	Output is correct
32	Correct	4 ms	256 KB	Output is correct
33	Correct	5 ms	384 KB	Output is correct
34	Correct	5 ms	384 KB	Output is correct
35	Correct	5 ms	256 KB	Output is correct
36	Correct	5 ms	384 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	4 ms	256 KB	Output is correct
4	Correct	4 ms	256 KB	Output is correct
5	Correct	4 ms	256 KB	Output is correct
6	Correct	4 ms	256 KB	Output is correct
7	Correct	4 ms	256 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	4 ms	256 KB	Output is correct
10	Correct	4 ms	256 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	4 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	5 ms	256 KB	Output is correct
17	Correct	5 ms	256 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	8 ms	768 KB	Output is correct
21	Correct	8 ms	768 KB	Output is correct
22	Correct	43 ms	4728 KB	Output is correct
23	Correct	40 ms	4728 KB	Output is correct
24	Correct	44 ms	4728 KB	Output is correct
25	Correct	40 ms	4984 KB	Output is correct
26	Correct	42 ms	4728 KB	Output is correct
27	Correct	42 ms	4472 KB	Output is correct
28	Correct	40 ms	5112 KB	Output is correct
29	Correct	41 ms	5112 KB	Output is correct
30	Correct	40 ms	5248 KB	Output is correct
31	Correct	44 ms	4736 KB	Output is correct
32	Correct	40 ms	5120 KB	Output is correct
33	Correct	40 ms	4984 KB	Output is correct
34	Correct	40 ms	5176 KB	Output is correct
35	Correct	4 ms	384 KB	Output is correct
36	Correct	4 ms	256 KB	Output is correct
37	Correct	41 ms	5120 KB	Output is correct
38	Correct	40 ms	5112 KB	Output is correct
39	Correct	40 ms	5120 KB	Output is correct

Subtask #4
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	4 ms	256 KB	Output is correct
4	Correct	4 ms	256 KB	Output is correct
5	Correct	307 ms	76664 KB	Output is correct
6	Correct	116 ms	11000 KB	Output is correct
7	Correct	298 ms	76664 KB	Output is correct
8	Correct	45 ms	5116 KB	Output is correct
9	Correct	310 ms	76884 KB	Output is correct
10	Correct	222 ms	40696 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	256 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	4 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	5 ms	256 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	5 ms	256 KB	Output is correct
22	Correct	4 ms	256 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	5 ms	384 KB	Output is correct
25	Correct	5 ms	384 KB	Output is correct
26	Correct	4 ms	256 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	4 ms	256 KB	Output is correct
29	Correct	4 ms	384 KB	Output is correct
30	Correct	4 ms	256 KB	Output is correct
31	Correct	5 ms	384 KB	Output is correct
32	Correct	4 ms	256 KB	Output is correct
33	Correct	5 ms	384 KB	Output is correct
34	Correct	5 ms	384 KB	Output is correct
35	Correct	5 ms	256 KB	Output is correct
36	Correct	5 ms	384 KB	Output is correct
37	Correct	5 ms	256 KB	Output is correct
38	Correct	4 ms	384 KB	Output is correct
39	Correct	5 ms	384 KB	Output is correct
40	Correct	5 ms	512 KB	Output is correct
41	Correct	6 ms	1024 KB	Output is correct
42	Correct	6 ms	1024 KB	Output is correct
43	Correct	6 ms	1024 KB	Output is correct
44	Correct	6 ms	896 KB	Output is correct
45	Correct	6 ms	768 KB	Output is correct
46	Correct	5 ms	768 KB	Output is correct
47	Correct	5 ms	640 KB	Output is correct
48	Correct	6 ms	512 KB	Output is correct
49	Correct	6 ms	512 KB	Output is correct
50	Correct	5 ms	384 KB	Output is correct
51	Correct	5 ms	384 KB	Output is correct
52	Correct	6 ms	1024 KB	Output is correct

Subtask #6
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	256 KB	Output is correct
8	Correct	5 ms	256 KB	Output is correct
9	Correct	5 ms	256 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	4 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	5 ms	256 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	5 ms	256 KB	Output is correct
22	Correct	4 ms	256 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	5 ms	384 KB	Output is correct
25	Correct	5 ms	384 KB	Output is correct
26	Correct	4 ms	256 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	4 ms	256 KB	Output is correct
29	Correct	4 ms	384 KB	Output is correct
30	Correct	4 ms	256 KB	Output is correct
31	Correct	5 ms	384 KB	Output is correct
32	Correct	4 ms	256 KB	Output is correct
33	Correct	5 ms	384 KB	Output is correct
34	Correct	5 ms	384 KB	Output is correct
35	Correct	5 ms	256 KB	Output is correct
36	Correct	5 ms	384 KB	Output is correct
37	Correct	4 ms	256 KB	Output is correct
38	Correct	4 ms	256 KB	Output is correct
39	Correct	4 ms	256 KB	Output is correct
40	Correct	4 ms	256 KB	Output is correct
41	Correct	4 ms	256 KB	Output is correct
42	Correct	5 ms	256 KB	Output is correct
43	Correct	4 ms	256 KB	Output is correct
44	Correct	4 ms	256 KB	Output is correct
45	Correct	4 ms	256 KB	Output is correct
46	Correct	4 ms	256 KB	Output is correct
47	Correct	4 ms	256 KB	Output is correct
48	Correct	4 ms	256 KB	Output is correct
49	Correct	5 ms	384 KB	Output is correct
50	Correct	5 ms	256 KB	Output is correct
51	Correct	5 ms	256 KB	Output is correct
52	Correct	5 ms	384 KB	Output is correct
53	Correct	5 ms	384 KB	Output is correct
54	Correct	8 ms	768 KB	Output is correct
55	Correct	8 ms	768 KB	Output is correct
56	Correct	43 ms	4728 KB	Output is correct
57	Correct	40 ms	4728 KB	Output is correct
58	Correct	44 ms	4728 KB	Output is correct
59	Correct	40 ms	4984 KB	Output is correct
60	Correct	42 ms	4728 KB	Output is correct
61	Correct	42 ms	4472 KB	Output is correct
62	Correct	40 ms	5112 KB	Output is correct
63	Correct	41 ms	5112 KB	Output is correct
64	Correct	40 ms	5248 KB	Output is correct
65	Correct	44 ms	4736 KB	Output is correct
66	Correct	40 ms	5120 KB	Output is correct
67	Correct	40 ms	4984 KB	Output is correct
68	Correct	40 ms	5176 KB	Output is correct
69	Correct	4 ms	384 KB	Output is correct
70	Correct	4 ms	256 KB	Output is correct
71	Correct	41 ms	5120 KB	Output is correct
72	Correct	40 ms	5112 KB	Output is correct
73	Correct	40 ms	5120 KB	Output is correct
74	Correct	5 ms	256 KB	Output is correct
75	Correct	5 ms	256 KB	Output is correct
76	Correct	4 ms	256 KB	Output is correct
77	Correct	4 ms	256 KB	Output is correct
78	Correct	307 ms	76664 KB	Output is correct
79	Correct	116 ms	11000 KB	Output is correct
80	Correct	298 ms	76664 KB	Output is correct
81	Correct	45 ms	5116 KB	Output is correct
82	Correct	310 ms	76884 KB	Output is correct
83	Correct	222 ms	40696 KB	Output is correct
84	Correct	5 ms	256 KB	Output is correct
85	Correct	4 ms	384 KB	Output is correct
86	Correct	5 ms	384 KB	Output is correct
87	Correct	5 ms	512 KB	Output is correct
88	Correct	6 ms	1024 KB	Output is correct
89	Correct	6 ms	1024 KB	Output is correct
90	Correct	6 ms	1024 KB	Output is correct
91	Correct	6 ms	896 KB	Output is correct
92	Correct	6 ms	768 KB	Output is correct
93	Correct	5 ms	768 KB	Output is correct
94	Correct	5 ms	640 KB	Output is correct
95	Correct	6 ms	512 KB	Output is correct
96	Correct	6 ms	512 KB	Output is correct
97	Correct	5 ms	384 KB	Output is correct
98	Correct	5 ms	384 KB	Output is correct
99	Correct	6 ms	1024 KB	Output is correct
100	Correct	6 ms	1152 KB	Output is correct
101	Correct	24 ms	7424 KB	Output is correct
102	Correct	17 ms	2944 KB	Output is correct
103	Correct	368 ms	76664 KB	Output is correct
104	Correct	281 ms	76792 KB	Output is correct
105	Correct	284 ms	58744 KB	Output is correct
106	Correct	312 ms	76792 KB	Output is correct
107	Correct	114 ms	12664 KB	Output is correct
108	Correct	134 ms	20728 KB	Output is correct
109	Correct	41 ms	5112 KB	Output is correct
110	Correct	40 ms	5112 KB	Output is correct
111	Correct	284 ms	68728 KB	Output is correct
112	Correct	303 ms	60792 KB	Output is correct
113	Correct	127 ms	13560 KB	Output is correct
114	Correct	309 ms	76664 KB	Output is correct
115	Correct	310 ms	76664 KB	Output is correct

답안 #231258

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