oj.uz

Submission #262030

# Submission time Handle Problem Language Result Execution time Memory
262030 2020-08-12T09:44:15 Z tiberiu Arranging Shoes (IOI19_shoes) C++14
100 / 100
 89 ms 16504 KB 
#include "shoes.h"
#include <vector>

using namespace std;

const int MAX_N = 2e5 + 10;

long long aib[MAX_N];

void update(int pos, int val) {
    pos++;

    while (pos < MAX_N) {
        aib[pos] += val;
        pos += (pos & -pos);
    }
}

long long query(int pos) {
    pos++;

    long long ans = 0;
    while (pos > 0) {
        ans += aib[pos];
        pos -= (pos & -pos);
    }
    return ans;
}

long long count_swaps(std::vector<int> s) {
    int n = s.size() / 2;
    vector<int>* f = new vector<int>[2 * n + 1]() + n;

    if (query(2 * n))
        return 1 / 0;

    for (int i = 0; i < 2 * n; i++)
        f[s[i]].push_back(i);

    vector<int> p(2 * n);
    for (int i = 1; i <= n; i++) {
        int j = 0;
        while (j < f[i].size()) {
            p[f[i][j]] = f[-i][j];
            p[f[-i][j]] = f[i][j];
            j++;
        }
    }
    long long ans = 0;
    for (int i = 0; i < 2 * n; i++) {
        if (p[i] < i)
            continue;

        if (s[p[i]] < s[i])
            ans++;

        ans += (p[i] - i - 1) - (query(p[i] - 1) - query(i));
        update(p[i], +1);
    }

    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:35:18: warning: division by zero [-Wdiv-by-zero]
         return 1 / 0;
                ~~^~~
shoes.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (j < f[i].size()) {
                ~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 4 ms 1408 KB Output is correct
21 Correct 5 ms 1408 KB Output is correct
22 Correct 44 ms 10136 KB Output is correct
23 Correct 43 ms 10220 KB Output is correct
24 Correct 43 ms 10092 KB Output is correct
25 Correct 41 ms 9328 KB Output is correct
26 Correct 43 ms 11248 KB Output is correct
27 Correct 42 ms 10988 KB Output is correct
28 Correct 40 ms 10352 KB Output is correct
29 Correct 40 ms 10352 KB Output is correct
30 Correct 43 ms 10352 KB Output is correct
31 Correct 43 ms 11140 KB Output is correct
32 Correct 40 ms 10352 KB Output is correct
33 Correct 41 ms 10096 KB Output is correct
34 Correct 47 ms 10352 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 43 ms 10492 KB Output is correct
38 Correct 40 ms 10352 KB Output is correct
39 Correct 46 ms 10352 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 67 ms 14584 KB Output is correct
6 Correct 55 ms 10872 KB Output is correct
7 Correct 66 ms 15680 KB Output is correct
8 Correct 44 ms 10376 KB Output is correct
9 Correct 68 ms 15736 KB Output is correct
10 Correct 61 ms 12536 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 0 ms 384 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 ms 512 KB Output is correct
46 Correct 1 ms 512 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 512 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 0 ms 384 KB Output is correct
27 Correct 0 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 384 KB Output is correct
44 Correct 0 ms 384 KB Output is correct
45 Correct 0 ms 384 KB Output is correct
46 Correct 0 ms 384 KB Output is correct
47 Correct 0 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 0 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 4 ms 1408 KB Output is correct
55 Correct 5 ms 1408 KB Output is correct
56 Correct 44 ms 10136 KB Output is correct
57 Correct 43 ms 10220 KB Output is correct
58 Correct 43 ms 10092 KB Output is correct
59 Correct 41 ms 9328 KB Output is correct
60 Correct 43 ms 11248 KB Output is correct
61 Correct 42 ms 10988 KB Output is correct
62 Correct 40 ms 10352 KB Output is correct
63 Correct 40 ms 10352 KB Output is correct
64 Correct 43 ms 10352 KB Output is correct
65 Correct 43 ms 11140 KB Output is correct
66 Correct 40 ms 10352 KB Output is correct
67 Correct 41 ms 10096 KB Output is correct
68 Correct 47 ms 10352 KB Output is correct
69 Correct 1 ms 384 KB Output is correct
70 Correct 0 ms 384 KB Output is correct
71 Correct 43 ms 10492 KB Output is correct
72 Correct 40 ms 10352 KB Output is correct
73 Correct 46 ms 10352 KB Output is correct
74 Correct 0 ms 384 KB Output is correct
75 Correct 0 ms 384 KB Output is correct
76 Correct 0 ms 384 KB Output is correct
77 Correct 0 ms 384 KB Output is correct
78 Correct 67 ms 14584 KB Output is correct
79 Correct 55 ms 10872 KB Output is correct
80 Correct 66 ms 15680 KB Output is correct
81 Correct 44 ms 10376 KB Output is correct
82 Correct 68 ms 15736 KB Output is correct
83 Correct 61 ms 12536 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 0 ms 384 KB Output is correct
86 Correct 0 ms 384 KB Output is correct
87 Correct 0 ms 384 KB Output is correct
88 Correct 2 ms 512 KB Output is correct
89 Correct 1 ms 512 KB Output is correct
90 Correct 1 ms 512 KB Output is correct
91 Correct 1 ms 512 KB Output is correct
92 Correct 1 ms 512 KB Output is correct
93 Correct 1 ms 512 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 1 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 1 ms 384 KB Output is correct
98 Correct 1 ms 384 KB Output is correct
99 Correct 1 ms 512 KB Output is correct
100 Correct 1 ms 512 KB Output is correct
101 Correct 6 ms 1920 KB Output is correct
102 Correct 6 ms 1536 KB Output is correct
103 Correct 75 ms 16376 KB Output is correct
104 Correct 85 ms 16504 KB Output is correct
105 Correct 89 ms 13688 KB Output is correct
106 Correct 69 ms 15864 KB Output is correct
107 Correct 61 ms 11768 KB Output is correct
108 Correct 64 ms 12152 KB Output is correct
109 Correct 41 ms 10608 KB Output is correct
110 Correct 41 ms 10352 KB Output is correct
111 Correct 68 ms 14968 KB Output is correct
112 Correct 71 ms 15096 KB Output is correct
113 Correct 73 ms 11000 KB Output is correct
114 Correct 67 ms 15696 KB Output is correct
115 Correct 68 ms 15608 KB Output is correct