oj.uz

Submission #830170

# Submission time Handle Problem Language Result Execution time Memory
830170 2023-08-18T22:23:53 Z GusterGoose27 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 108 ms 139552 KB 
#include "shoes.h"

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 2e5+5;

typedef long long ll;

int bit[MAXN];
int nxt[MAXN];
int n;

void upd(int p, int v) {
	for (; p < n; p |= (p+1)) bit[p] += v;
}

int sum(int p) {
	int s = 0;
	for (p++; p > 0; p &= (p-1)) s += bit[p-1];
	return s;
}

queue<int> occ[MAXN];
bool matched[MAXN];

int _abs(int x) {
	return x < 0 ? -x : x;
}

ll count_swaps(vector<int> s) {
	n = s.size();
	for (int i = 0; i < n; i++) {
		int x = _abs(s[i]);
		if (occ[x].size() && s[occ[x].front()] != s[i]) {
			nxt[occ[x].front()] = i;
			occ[x].pop();
		}
		else occ[x].push(i);
	}
	for (int i = 1; i <= n/2; i++) assert(occ[i].empty());
	ll ans = 0;
	for (int i = 0; i < n; i++) {
		if (matched[i]) continue;
		int dist = nxt[i]+sum(nxt[i])-(s[i] < 0);
		ans += dist;
		upd(i, -1);
		upd(nxt[i], -1);
		matched[i] = matched[nxt[i]] = 1;
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 134860 KB Output is correct
2 Correct 60 ms 134856 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 134860 KB Output is correct
2 Correct 60 ms 134856 KB Output is correct
3 Correct 62 ms 134864 KB Output is correct
4 Correct 61 ms 134888 KB Output is correct
5 Correct 61 ms 134840 KB Output is correct
6 Correct 72 ms 134936 KB Output is correct
7 Correct 62 ms 134876 KB Output is correct
8 Correct 64 ms 134860 KB Output is correct
9 Correct 63 ms 134836 KB Output is correct
10 Correct 64 ms 134912 KB Output is correct
11 Correct 62 ms 134932 KB Output is correct
12 Correct 65 ms 134892 KB Output is correct
13 Correct 61 ms 134856 KB Output is correct
14 Correct 63 ms 134844 KB Output is correct
15 Correct 65 ms 134872 KB Output is correct
16 Correct 63 ms 134860 KB Output is correct
17 Correct 63 ms 134872 KB Output is correct
18 Correct 72 ms 134936 KB Output is correct
19 Correct 64 ms 134860 KB Output is correct
20 Correct 68 ms 134932 KB Output is correct
21 Correct 69 ms 134908 KB Output is correct
22 Correct 63 ms 134860 KB Output is correct
23 Correct 65 ms 134880 KB Output is correct
24 Correct 64 ms 134844 KB Output is correct
25 Correct 70 ms 134880 KB Output is correct
26 Correct 80 ms 134928 KB Output is correct
27 Correct 63 ms 134860 KB Output is correct
28 Correct 65 ms 134872 KB Output is correct
29 Correct 64 ms 134816 KB Output is correct
30 Correct 64 ms 134908 KB Output is correct
31 Correct 63 ms 134868 KB Output is correct
32 Correct 66 ms 134916 KB Output is correct
33 Correct 63 ms 134856 KB Output is correct
34 Correct 65 ms 134928 KB Output is correct
35 Correct 63 ms 134824 KB Output is correct
36 Correct 64 ms 134812 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 134860 KB Output is correct
2 Correct 60 ms 134856 KB Output is correct
3 Correct 79 ms 134832 KB Output is correct
4 Correct 72 ms 134944 KB Output is correct
5 Correct 64 ms 134864 KB Output is correct
6 Correct 65 ms 134828 KB Output is correct
7 Correct 66 ms 134896 KB Output is correct
8 Correct 64 ms 134932 KB Output is correct
9 Correct 63 ms 134828 KB Output is correct
10 Correct 63 ms 134884 KB Output is correct
11 Correct 68 ms 134932 KB Output is correct
12 Correct 64 ms 134936 KB Output is correct
13 Correct 67 ms 134860 KB Output is correct
14 Correct 76 ms 134864 KB Output is correct
15 Correct 78 ms 134904 KB Output is correct
16 Correct 63 ms 134860 KB Output is correct
17 Correct 74 ms 134896 KB Output is correct
18 Correct 64 ms 134944 KB Output is correct
19 Correct 66 ms 134948 KB Output is correct
20 Correct 74 ms 135284 KB Output is correct
21 Correct 72 ms 135348 KB Output is correct
22 Correct 87 ms 139520 KB Output is correct
23 Correct 84 ms 139416 KB Output is correct
24 Correct 87 ms 139456 KB Output is correct
25 Correct 89 ms 139300 KB Output is correct
26 Correct 86 ms 139448 KB Output is correct
27 Correct 81 ms 139232 KB Output is correct
28 Correct 92 ms 139468 KB Output is correct
29 Correct 91 ms 139552 KB Output is correct
30 Correct 88 ms 139480 KB Output is correct
31 Correct 87 ms 139500 KB Output is correct
32 Correct 91 ms 139532 KB Output is correct
33 Correct 91 ms 139420 KB Output is correct
34 Correct 91 ms 139516 KB Output is correct
35 Correct 64 ms 134832 KB Output is correct
36 Correct 65 ms 134876 KB Output is correct
37 Correct 89 ms 139552 KB Output is correct
38 Correct 89 ms 139452 KB Output is correct
39 Correct 87 ms 139544 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 134828 KB Output is correct
2 Correct 63 ms 134860 KB Output is correct
3 Correct 78 ms 134860 KB Output is correct
4 Correct 62 ms 134856 KB Output is correct
5 Correct 108 ms 139040 KB Output is correct
6 Correct 87 ms 139120 KB Output is correct
7 Correct 95 ms 138996 KB Output is correct
8 Correct 91 ms 139532 KB Output is correct
9 Correct 96 ms 139028 KB Output is correct
10 Correct 93 ms 139080 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 134860 KB Output is correct
2 Correct 60 ms 134856 KB Output is correct
3 Correct 62 ms 134864 KB Output is correct
4 Correct 61 ms 134888 KB Output is correct
5 Correct 61 ms 134840 KB Output is correct
6 Correct 72 ms 134936 KB Output is correct
7 Correct 62 ms 134876 KB Output is correct
8 Correct 64 ms 134860 KB Output is correct
9 Correct 63 ms 134836 KB Output is correct
10 Correct 64 ms 134912 KB Output is correct
11 Correct 62 ms 134932 KB Output is correct
12 Correct 65 ms 134892 KB Output is correct
13 Correct 61 ms 134856 KB Output is correct
14 Correct 63 ms 134844 KB Output is correct
15 Correct 65 ms 134872 KB Output is correct
16 Correct 63 ms 134860 KB Output is correct
17 Correct 63 ms 134872 KB Output is correct
18 Correct 72 ms 134936 KB Output is correct
19 Correct 64 ms 134860 KB Output is correct
20 Correct 68 ms 134932 KB Output is correct
21 Correct 69 ms 134908 KB Output is correct
22 Correct 63 ms 134860 KB Output is correct
23 Correct 65 ms 134880 KB Output is correct
24 Correct 64 ms 134844 KB Output is correct
25 Correct 70 ms 134880 KB Output is correct
26 Correct 80 ms 134928 KB Output is correct
27 Correct 63 ms 134860 KB Output is correct
28 Correct 65 ms 134872 KB Output is correct
29 Correct 64 ms 134816 KB Output is correct
30 Correct 64 ms 134908 KB Output is correct
31 Correct 63 ms 134868 KB Output is correct
32 Correct 66 ms 134916 KB Output is correct
33 Correct 63 ms 134856 KB Output is correct
34 Correct 65 ms 134928 KB Output is correct
35 Correct 63 ms 134824 KB Output is correct
36 Correct 64 ms 134812 KB Output is correct
37 Correct 62 ms 134904 KB Output is correct
38 Correct 67 ms 134860 KB Output is correct
39 Correct 65 ms 134856 KB Output is correct
40 Correct 62 ms 134864 KB Output is correct
41 Correct 63 ms 134976 KB Output is correct
42 Correct 69 ms 135116 KB Output is correct
43 Correct 81 ms 134936 KB Output is correct
44 Correct 63 ms 134884 KB Output is correct
45 Correct 65 ms 135040 KB Output is correct
46 Correct 66 ms 134912 KB Output is correct
47 Correct 81 ms 134904 KB Output is correct
48 Correct 66 ms 134952 KB Output is correct
49 Correct 65 ms 134856 KB Output is correct
50 Correct 64 ms 134980 KB Output is correct
51 Correct 76 ms 134920 KB Output is correct
52 Correct 66 ms 134896 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 134860 KB Output is correct
2 Correct 60 ms 134856 KB Output is correct
3 Correct 62 ms 134864 KB Output is correct
4 Correct 61 ms 134888 KB Output is correct
5 Correct 61 ms 134840 KB Output is correct
6 Correct 72 ms 134936 KB Output is correct
7 Correct 62 ms 134876 KB Output is correct
8 Correct 64 ms 134860 KB Output is correct
9 Correct 63 ms 134836 KB Output is correct
10 Correct 64 ms 134912 KB Output is correct
11 Correct 62 ms 134932 KB Output is correct
12 Correct 65 ms 134892 KB Output is correct
13 Correct 61 ms 134856 KB Output is correct
14 Correct 63 ms 134844 KB Output is correct
15 Correct 65 ms 134872 KB Output is correct
16 Correct 63 ms 134860 KB Output is correct
17 Correct 63 ms 134872 KB Output is correct
18 Correct 72 ms 134936 KB Output is correct
19 Correct 64 ms 134860 KB Output is correct
20 Correct 68 ms 134932 KB Output is correct
21 Correct 69 ms 134908 KB Output is correct
22 Correct 63 ms 134860 KB Output is correct
23 Correct 65 ms 134880 KB Output is correct
24 Correct 64 ms 134844 KB Output is correct
25 Correct 70 ms 134880 KB Output is correct
26 Correct 80 ms 134928 KB Output is correct
27 Correct 63 ms 134860 KB Output is correct
28 Correct 65 ms 134872 KB Output is correct
29 Correct 64 ms 134816 KB Output is correct
30 Correct 64 ms 134908 KB Output is correct
31 Correct 63 ms 134868 KB Output is correct
32 Correct 66 ms 134916 KB Output is correct
33 Correct 63 ms 134856 KB Output is correct
34 Correct 65 ms 134928 KB Output is correct
35 Correct 63 ms 134824 KB Output is correct
36 Correct 64 ms 134812 KB Output is correct
37 Correct 79 ms 134832 KB Output is correct
38 Correct 72 ms 134944 KB Output is correct
39 Correct 64 ms 134864 KB Output is correct
40 Correct 65 ms 134828 KB Output is correct
41 Correct 66 ms 134896 KB Output is correct
42 Correct 64 ms 134932 KB Output is correct
43 Correct 63 ms 134828 KB Output is correct
44 Correct 63 ms 134884 KB Output is correct
45 Correct 68 ms 134932 KB Output is correct
46 Correct 64 ms 134936 KB Output is correct
47 Correct 67 ms 134860 KB Output is correct
48 Correct 76 ms 134864 KB Output is correct
49 Correct 78 ms 134904 KB Output is correct
50 Correct 63 ms 134860 KB Output is correct
51 Correct 74 ms 134896 KB Output is correct
52 Correct 64 ms 134944 KB Output is correct
53 Correct 66 ms 134948 KB Output is correct
54 Correct 74 ms 135284 KB Output is correct
55 Correct 72 ms 135348 KB Output is correct
56 Correct 87 ms 139520 KB Output is correct
57 Correct 84 ms 139416 KB Output is correct
58 Correct 87 ms 139456 KB Output is correct
59 Correct 89 ms 139300 KB Output is correct
60 Correct 86 ms 139448 KB Output is correct
61 Correct 81 ms 139232 KB Output is correct
62 Correct 92 ms 139468 KB Output is correct
63 Correct 91 ms 139552 KB Output is correct
64 Correct 88 ms 139480 KB Output is correct
65 Correct 87 ms 139500 KB Output is correct
66 Correct 91 ms 139532 KB Output is correct
67 Correct 91 ms 139420 KB Output is correct
68 Correct 91 ms 139516 KB Output is correct
69 Correct 64 ms 134832 KB Output is correct
70 Correct 65 ms 134876 KB Output is correct
71 Correct 89 ms 139552 KB Output is correct
72 Correct 89 ms 139452 KB Output is correct
73 Correct 87 ms 139544 KB Output is correct
74 Correct 64 ms 134828 KB Output is correct
75 Correct 63 ms 134860 KB Output is correct
76 Correct 78 ms 134860 KB Output is correct
77 Correct 62 ms 134856 KB Output is correct
78 Correct 108 ms 139040 KB Output is correct
79 Correct 87 ms 139120 KB Output is correct
80 Correct 95 ms 138996 KB Output is correct
81 Correct 91 ms 139532 KB Output is correct
82 Correct 96 ms 139028 KB Output is correct
83 Correct 93 ms 139080 KB Output is correct
84 Correct 62 ms 134904 KB Output is correct
85 Correct 67 ms 134860 KB Output is correct
86 Correct 65 ms 134856 KB Output is correct
87 Correct 62 ms 134864 KB Output is correct
88 Correct 63 ms 134976 KB Output is correct
89 Correct 69 ms 135116 KB Output is correct
90 Correct 81 ms 134936 KB Output is correct
91 Correct 63 ms 134884 KB Output is correct
92 Correct 65 ms 135040 KB Output is correct
93 Correct 66 ms 134912 KB Output is correct
94 Correct 81 ms 134904 KB Output is correct
95 Correct 66 ms 134952 KB Output is correct
96 Correct 65 ms 134856 KB Output is correct
97 Correct 64 ms 134980 KB Output is correct
98 Correct 76 ms 134920 KB Output is correct
99 Correct 66 ms 134896 KB Output is correct
100 Correct 66 ms 134936 KB Output is correct
101 Correct 65 ms 135356 KB Output is correct
102 Correct 67 ms 135324 KB Output is correct
103 Correct 96 ms 139420 KB Output is correct
104 Correct 92 ms 139420 KB Output is correct
105 Correct 91 ms 139424 KB Output is correct
106 Correct 93 ms 139044 KB Output is correct
107 Correct 95 ms 139420 KB Output is correct
108 Correct 90 ms 139408 KB Output is correct
109 Correct 89 ms 139552 KB Output is correct
110 Correct 100 ms 139456 KB Output is correct
111 Correct 96 ms 139040 KB Output is correct
112 Correct 96 ms 139408 KB Output is correct
113 Correct 92 ms 139036 KB Output is correct
114 Correct 92 ms 139040 KB Output is correct
115 Correct 95 ms 139044 KB Output is correct