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Submission #769681

# Submission time Handle Problem Language Result Execution time Memory
769681 2023-06-30T02:45:51 Z SanguineChameleon Arranging Shoes (IOI19_shoes) C++17
100 / 100
 47 ms 17400 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

const int maxn = 1e5 + 20;
int order[maxn * 2];
int sizes[maxn * 2];
int match[maxn * 2];
bool flag[maxn * 2];
int bit[maxn * 2];
vector<int> shoes[maxn][2];
int n;

void update(int pos) {
	for (int i = pos; i <= n * 2; i += i & (-i)) {
		bit[i]++;
	}
}

int get(int pos) {
	int res = 0;
	for (int i = pos; i > 0; i -= i & (-i)) {
		res += bit[i];
	}
	return res;
}

long long count_swaps(vector<int> _sizes) {
	n = (int)_sizes.size() / 2;
	for (int i = 1; i <= n * 2; i++) {
		sizes[i] = _sizes[i - 1];
		if (sizes[i] < 0) {
			shoes[-sizes[i]][0].push_back(i);
		}
		else {
			shoes[sizes[i]][1].push_back(i);
		}
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 0; j < (int)shoes[i][0].size(); j++) {
			match[shoes[i][0][j]] = shoes[i][1][j];
			match[shoes[i][1][j]] = shoes[i][0][j];
		}
	}
	int cnt = 0;
	for (int i = 1; i <= n * 2; i++) {
		if (!flag[i]) {
			order[i] = cnt + (sizes[i] < 0 ? 1 : 2);
			order[match[i]] = cnt + (sizes[match[i]] < 0 ? 1 : 2);
			flag[i] = true;
			flag[match[i]] = true;
			cnt += 2;
		}
	}
	long long res = 0;
	for (int i = n * 2; i >= 1; i--) {
		res += get(order[i]);
		update(order[i]);
	}
	return res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 5000 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 5000 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 2 ms 4948 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 2 ms 4948 KB Output is correct
26 Correct 3 ms 4904 KB Output is correct
27 Correct 2 ms 4948 KB Output is correct
28 Correct 2 ms 4948 KB Output is correct
29 Correct 2 ms 4948 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4980 KB Output is correct
14 Correct 3 ms 4944 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 5076 KB Output is correct
19 Correct 2 ms 5076 KB Output is correct
20 Correct 5 ms 5652 KB Output is correct
21 Correct 5 ms 5588 KB Output is correct
22 Correct 27 ms 10700 KB Output is correct
23 Correct 24 ms 12056 KB Output is correct
24 Correct 27 ms 12080 KB Output is correct
25 Correct 23 ms 11776 KB Output is correct
26 Correct 27 ms 12056 KB Output is correct
27 Correct 24 ms 11924 KB Output is correct
28 Correct 23 ms 12048 KB Output is correct
29 Correct 23 ms 11980 KB Output is correct
30 Correct 24 ms 12044 KB Output is correct
31 Correct 28 ms 12060 KB Output is correct
32 Correct 23 ms 11972 KB Output is correct
33 Correct 23 ms 11748 KB Output is correct
34 Correct 24 ms 12056 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 24 ms 11988 KB Output is correct
38 Correct 23 ms 12060 KB Output is correct
39 Correct 23 ms 12048 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 44 ms 16084 KB Output is correct
6 Correct 29 ms 12572 KB Output is correct
7 Correct 36 ms 17292 KB Output is correct
8 Correct 23 ms 12020 KB Output is correct
9 Correct 37 ms 17376 KB Output is correct
10 Correct 34 ms 14236 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 5000 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 5000 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 2 ms 4948 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 2 ms 4948 KB Output is correct
26 Correct 3 ms 4904 KB Output is correct
27 Correct 2 ms 4948 KB Output is correct
28 Correct 2 ms 4948 KB Output is correct
29 Correct 2 ms 4948 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 2 ms 5076 KB Output is correct
42 Correct 2 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 2 ms 5076 KB Output is correct
47 Correct 3 ms 5076 KB Output is correct
48 Correct 2 ms 5076 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 5000 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 5000 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 2 ms 4948 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 2 ms 4948 KB Output is correct
26 Correct 3 ms 4904 KB Output is correct
27 Correct 2 ms 4948 KB Output is correct
28 Correct 2 ms 4948 KB Output is correct
29 Correct 2 ms 4948 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 2 ms 4948 KB Output is correct
41 Correct 2 ms 4948 KB Output is correct
42 Correct 2 ms 4948 KB Output is correct
43 Correct 2 ms 4948 KB Output is correct
44 Correct 2 ms 4948 KB Output is correct
45 Correct 2 ms 4948 KB Output is correct
46 Correct 3 ms 4948 KB Output is correct
47 Correct 3 ms 4980 KB Output is correct
48 Correct 3 ms 4944 KB Output is correct
49 Correct 2 ms 4948 KB Output is correct
50 Correct 2 ms 4948 KB Output is correct
51 Correct 2 ms 4948 KB Output is correct
52 Correct 2 ms 5076 KB Output is correct
53 Correct 2 ms 5076 KB Output is correct
54 Correct 5 ms 5652 KB Output is correct
55 Correct 5 ms 5588 KB Output is correct
56 Correct 27 ms 10700 KB Output is correct
57 Correct 24 ms 12056 KB Output is correct
58 Correct 27 ms 12080 KB Output is correct
59 Correct 23 ms 11776 KB Output is correct
60 Correct 27 ms 12056 KB Output is correct
61 Correct 24 ms 11924 KB Output is correct
62 Correct 23 ms 12048 KB Output is correct
63 Correct 23 ms 11980 KB Output is correct
64 Correct 24 ms 12044 KB Output is correct
65 Correct 28 ms 12060 KB Output is correct
66 Correct 23 ms 11972 KB Output is correct
67 Correct 23 ms 11748 KB Output is correct
68 Correct 24 ms 12056 KB Output is correct
69 Correct 2 ms 4948 KB Output is correct
70 Correct 2 ms 4948 KB Output is correct
71 Correct 24 ms 11988 KB Output is correct
72 Correct 23 ms 12060 KB Output is correct
73 Correct 23 ms 12048 KB Output is correct
74 Correct 2 ms 4948 KB Output is correct
75 Correct 2 ms 4948 KB Output is correct
76 Correct 2 ms 4948 KB Output is correct
77 Correct 2 ms 4948 KB Output is correct
78 Correct 44 ms 16084 KB Output is correct
79 Correct 29 ms 12572 KB Output is correct
80 Correct 36 ms 17292 KB Output is correct
81 Correct 23 ms 12020 KB Output is correct
82 Correct 37 ms 17376 KB Output is correct
83 Correct 34 ms 14236 KB Output is correct
84 Correct 2 ms 4948 KB Output is correct
85 Correct 2 ms 4948 KB Output is correct
86 Correct 2 ms 4948 KB Output is correct
87 Correct 3 ms 4948 KB Output is correct
88 Correct 2 ms 5076 KB Output is correct
89 Correct 2 ms 5076 KB Output is correct
90 Correct 3 ms 5076 KB Output is correct
91 Correct 3 ms 5076 KB Output is correct
92 Correct 3 ms 5076 KB Output is correct
93 Correct 2 ms 5076 KB Output is correct
94 Correct 3 ms 5076 KB Output is correct
95 Correct 2 ms 5076 KB Output is correct
96 Correct 3 ms 5076 KB Output is correct
97 Correct 3 ms 5076 KB Output is correct
98 Correct 3 ms 5076 KB Output is correct
99 Correct 3 ms 5076 KB Output is correct
100 Correct 3 ms 5076 KB Output is correct
101 Correct 6 ms 6100 KB Output is correct
102 Correct 6 ms 5844 KB Output is correct
103 Correct 44 ms 17300 KB Output is correct
104 Correct 41 ms 17300 KB Output is correct
105 Correct 38 ms 14660 KB Output is correct
106 Correct 47 ms 17400 KB Output is correct
107 Correct 33 ms 12620 KB Output is correct
108 Correct 32 ms 13092 KB Output is correct
109 Correct 24 ms 12360 KB Output is correct
110 Correct 24 ms 12104 KB Output is correct
111 Correct 38 ms 16632 KB Output is correct
112 Correct 38 ms 15880 KB Output is correct
113 Correct 32 ms 12600 KB Output is correct
114 Correct 46 ms 17292 KB Output is correct
115 Correct 36 ms 17400 KB Output is correct