oj.uz

Submission #411801

# Submission time Handle Problem Language Result Execution time Memory
411801 2021-05-26T02:38:11 Z timmyfeng Arranging Shoes (IOI19_shoes) C++17
100 / 100
 640 ms 34528 KB 
#include <bits/stdc++.h>
using namespace std;
 
#include <bits/extc++.h>
 
template <class T, class Comp = less<T>>
using ordered_set = __gnu_pbds::tree<
    T, __gnu_pbds::null_type, Comp,
    __gnu_pbds::rb_tree_tag,
    __gnu_pbds::tree_order_statistics_node_update
>;
 
long long count_swaps(vector<int> s) {
    int n = s.size() / 2;
 
    map<int, vector<int>> nxt;
    ordered_set<int> shoes;
 
    for (int i = 2 * n - 1; i >= 0; --i) {
        nxt[s[i]].push_back(i);
        shoes.insert(i);
    }
 
    long long ans = 0;
    while (!shoes.empty()) {
        auto i = *shoes.begin();
        shoes.erase(shoes.begin());
 
        int x = s[i];
        nxt[x].pop_back();
 
        int j = nxt[-x].back();
        nxt[-x].pop_back();
 
        ans += shoes.order_of_key(j) + (x > 0);
        shoes.erase(j);
    }
 
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 292 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 284 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 292 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 288 KB Output is correct
36 Correct 1 ms 204 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 2 ms 332 KB Output is correct
19 Correct 2 ms 332 KB Output is correct
20 Correct 12 ms 1484 KB Output is correct
21 Correct 13 ms 1552 KB Output is correct
22 Correct 209 ms 13236 KB Output is correct
23 Correct 194 ms 13204 KB Output is correct
24 Correct 194 ms 13236 KB Output is correct
25 Correct 164 ms 13024 KB Output is correct
26 Correct 193 ms 13188 KB Output is correct
27 Correct 189 ms 13092 KB Output is correct
28 Correct 167 ms 13244 KB Output is correct
29 Correct 179 ms 13212 KB Output is correct
30 Correct 184 ms 13340 KB Output is correct
31 Correct 169 ms 13204 KB Output is correct
32 Correct 165 ms 13176 KB Output is correct
33 Correct 167 ms 13100 KB Output is correct
34 Correct 166 ms 13276 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 169 ms 13300 KB Output is correct
38 Correct 167 ms 13344 KB Output is correct
39 Correct 165 ms 13204 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 553 ms 34400 KB Output is correct
6 Correct 272 ms 15328 KB Output is correct
7 Correct 560 ms 34464 KB Output is correct
8 Correct 151 ms 13344 KB Output is correct
9 Correct 528 ms 34336 KB Output is correct
10 Correct 354 ms 23448 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 292 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 284 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 292 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 288 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 2 ms 332 KB Output is correct
41 Correct 3 ms 588 KB Output is correct
42 Correct 3 ms 588 KB Output is correct
43 Correct 3 ms 588 KB Output is correct
44 Correct 3 ms 460 KB Output is correct
45 Correct 3 ms 460 KB Output is correct
46 Correct 2 ms 428 KB Output is correct
47 Correct 2 ms 424 KB Output is correct
48 Correct 2 ms 460 KB Output is correct
49 Correct 2 ms 460 KB Output is correct
50 Correct 2 ms 332 KB Output is correct
51 Correct 2 ms 300 KB Output is correct
52 Correct 3 ms 588 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 292 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 284 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 292 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 288 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 288 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 296 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 2 ms 332 KB Output is correct
53 Correct 2 ms 332 KB Output is correct
54 Correct 12 ms 1484 KB Output is correct
55 Correct 13 ms 1552 KB Output is correct
56 Correct 209 ms 13236 KB Output is correct
57 Correct 194 ms 13204 KB Output is correct
58 Correct 194 ms 13236 KB Output is correct
59 Correct 164 ms 13024 KB Output is correct
60 Correct 193 ms 13188 KB Output is correct
61 Correct 189 ms 13092 KB Output is correct
62 Correct 167 ms 13244 KB Output is correct
63 Correct 179 ms 13212 KB Output is correct
64 Correct 184 ms 13340 KB Output is correct
65 Correct 169 ms 13204 KB Output is correct
66 Correct 165 ms 13176 KB Output is correct
67 Correct 167 ms 13100 KB Output is correct
68 Correct 166 ms 13276 KB Output is correct
69 Correct 1 ms 204 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 169 ms 13300 KB Output is correct
72 Correct 167 ms 13344 KB Output is correct
73 Correct 165 ms 13204 KB Output is correct
74 Correct 1 ms 204 KB Output is correct
75 Correct 1 ms 204 KB Output is correct
76 Correct 1 ms 204 KB Output is correct
77 Correct 1 ms 204 KB Output is correct
78 Correct 553 ms 34400 KB Output is correct
79 Correct 272 ms 15328 KB Output is correct
80 Correct 560 ms 34464 KB Output is correct
81 Correct 151 ms 13344 KB Output is correct
82 Correct 528 ms 34336 KB Output is correct
83 Correct 354 ms 23448 KB Output is correct
84 Correct 1 ms 204 KB Output is correct
85 Correct 1 ms 204 KB Output is correct
86 Correct 1 ms 204 KB Output is correct
87 Correct 2 ms 332 KB Output is correct
88 Correct 3 ms 588 KB Output is correct
89 Correct 3 ms 588 KB Output is correct
90 Correct 3 ms 588 KB Output is correct
91 Correct 3 ms 460 KB Output is correct
92 Correct 3 ms 460 KB Output is correct
93 Correct 2 ms 428 KB Output is correct
94 Correct 2 ms 424 KB Output is correct
95 Correct 2 ms 460 KB Output is correct
96 Correct 2 ms 460 KB Output is correct
97 Correct 2 ms 332 KB Output is correct
98 Correct 2 ms 300 KB Output is correct
99 Correct 3 ms 588 KB Output is correct
100 Correct 3 ms 588 KB Output is correct
101 Correct 36 ms 3396 KB Output is correct
102 Correct 26 ms 1996 KB Output is correct
103 Correct 640 ms 34408 KB Output is correct
104 Correct 544 ms 34420 KB Output is correct
105 Correct 431 ms 24960 KB Output is correct
106 Correct 538 ms 34528 KB Output is correct
107 Correct 244 ms 15812 KB Output is correct
108 Correct 254 ms 17824 KB Output is correct
109 Correct 156 ms 13208 KB Output is correct
110 Correct 162 ms 13212 KB Output is correct
111 Correct 415 ms 31968 KB Output is correct
112 Correct 555 ms 29412 KB Output is correct
113 Correct 331 ms 16040 KB Output is correct
114 Correct 520 ms 34344 KB Output is correct
115 Correct 577 ms 34340 KB Output is correct