oj.uz

Submission #144820

# Submission time Handle Problem Language Result Execution time Memory
144820 2019-08-17T20:56:46 Z khrbuddy03 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 120 ms 16008 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
using lint = long long;
 
const int maxn = 1e5 + 9;
 
struct fenwick {
    vector<lint> tree;
    fenwick(int _n) : tree(_n + 1, 0) {}
    lint get(int index) {
        lint sum = 0LL;
        while (0 < index) {
            sum += tree[index] * 1LL;
            index -= (index & -index);
        }
        return sum * 1LL;
    }
    void add(int index, lint value) {
        while (index < tree.size()) {
            tree[index] += value * 1LL;
            index += (index & -index);
        }
    }
};
 
lint count_swaps(vector<int> s) {
    int n = (int)s.size() / 2;
    vector<bool> check(n * 2, false);
    fenwick tree(n * 2);
    priority_queue<int> pq1[maxn], pq2[maxn];
    lint answer = 0LL;
    for (int i = 0; i < 2 * n; ++i) {
        if (s[i] > 0)
            pq1[s[i]].push(-i);
        else
            pq2[-s[i]].push(-i);
        tree.add(i + 1, 1LL);
    }
    for (int i = 0; i < 2 * n; ++i) {
        if (check[i])
            continue;
        int pos;
        if (s[i] > 0) {
            pos = -pq2[s[i]].top();
            pq2[s[i]].pop(); pq1[s[i]].pop();
            ++answer;
        } else {
            pos = -pq1[-s[i]].top();
            pq1[-s[i]].pop(); pq2[-s[i]].pop();
        }
        tree.add(i + 1, -1);
        tree.add(pos + 1, -1);
        answer += (tree.get(pos + 1) * 1LL - tree.get(i) * 1LL) * 1LL;
        check[i] = check[pos] = true;
    }
    return answer;
}

Compilation message

shoes.cpp: In member function 'void fenwick::add(int, lint)':
shoes.cpp:21:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (index < tree.size()) {
                ~~~~~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6520 KB Output is correct
2 Correct 7 ms 6648 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6520 KB Output is correct
2 Correct 7 ms 6648 KB Output is correct
3 Correct 7 ms 6648 KB Output is correct
4 Correct 7 ms 6648 KB Output is correct
5 Correct 7 ms 6524 KB Output is correct
6 Correct 7 ms 6520 KB Output is correct
7 Correct 7 ms 6520 KB Output is correct
8 Correct 7 ms 6520 KB Output is correct
9 Correct 7 ms 6520 KB Output is correct
10 Correct 7 ms 6520 KB Output is correct
11 Correct 7 ms 6648 KB Output is correct
12 Correct 7 ms 6520 KB Output is correct
13 Correct 7 ms 6648 KB Output is correct
14 Correct 7 ms 6648 KB Output is correct
15 Correct 7 ms 6520 KB Output is correct
16 Correct 7 ms 6648 KB Output is correct
17 Correct 7 ms 6648 KB Output is correct
18 Correct 7 ms 6520 KB Output is correct
19 Correct 7 ms 6520 KB Output is correct
20 Correct 7 ms 6648 KB Output is correct
21 Correct 7 ms 6648 KB Output is correct
22 Correct 7 ms 6620 KB Output is correct
23 Correct 7 ms 6520 KB Output is correct
24 Correct 7 ms 6648 KB Output is correct
25 Correct 8 ms 6648 KB Output is correct
26 Correct 8 ms 6652 KB Output is correct
27 Correct 7 ms 6648 KB Output is correct
28 Correct 7 ms 6520 KB Output is correct
29 Correct 7 ms 6648 KB Output is correct
30 Correct 7 ms 6520 KB Output is correct
31 Correct 9 ms 6520 KB Output is correct
32 Correct 7 ms 6648 KB Output is correct
33 Correct 7 ms 6520 KB Output is correct
34 Correct 7 ms 6648 KB Output is correct
35 Correct 7 ms 6648 KB Output is correct
36 Correct 7 ms 6648 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6520 KB Output is correct
2 Correct 7 ms 6648 KB Output is correct
3 Correct 8 ms 6624 KB Output is correct
4 Correct 7 ms 6648 KB Output is correct
5 Correct 7 ms 6648 KB Output is correct
6 Correct 7 ms 6652 KB Output is correct
7 Correct 7 ms 6648 KB Output is correct
8 Correct 7 ms 6652 KB Output is correct
9 Correct 7 ms 6648 KB Output is correct
10 Correct 9 ms 6520 KB Output is correct
11 Correct 7 ms 6652 KB Output is correct
12 Correct 9 ms 6648 KB Output is correct
13 Correct 8 ms 6648 KB Output is correct
14 Correct 7 ms 6648 KB Output is correct
15 Correct 7 ms 6648 KB Output is correct
16 Correct 7 ms 6520 KB Output is correct
17 Correct 8 ms 6648 KB Output is correct
18 Correct 8 ms 6648 KB Output is correct
19 Correct 8 ms 6648 KB Output is correct
20 Correct 13 ms 7032 KB Output is correct
21 Correct 13 ms 7160 KB Output is correct
22 Correct 67 ms 10784 KB Output is correct
23 Correct 60 ms 10656 KB Output is correct
24 Correct 68 ms 10728 KB Output is correct
25 Correct 63 ms 10868 KB Output is correct
26 Correct 67 ms 10656 KB Output is correct
27 Correct 59 ms 10652 KB Output is correct
28 Correct 64 ms 10864 KB Output is correct
29 Correct 67 ms 10864 KB Output is correct
30 Correct 64 ms 10864 KB Output is correct
31 Correct 67 ms 10640 KB Output is correct
32 Correct 64 ms 10992 KB Output is correct
33 Correct 62 ms 10864 KB Output is correct
34 Correct 64 ms 10964 KB Output is correct
35 Correct 7 ms 6652 KB Output is correct
36 Correct 7 ms 6648 KB Output is correct
37 Correct 63 ms 10836 KB Output is correct
38 Correct 64 ms 10864 KB Output is correct
39 Correct 64 ms 10908 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6648 KB Output is correct
2 Correct 7 ms 6648 KB Output is correct
3 Correct 7 ms 6520 KB Output is correct
4 Correct 7 ms 6520 KB Output is correct
5 Correct 103 ms 16008 KB Output is correct
6 Correct 79 ms 11256 KB Output is correct
7 Correct 109 ms 15996 KB Output is correct
8 Correct 70 ms 10756 KB Output is correct
9 Correct 103 ms 15992 KB Output is correct
10 Correct 94 ms 13048 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6520 KB Output is correct
2 Correct 7 ms 6648 KB Output is correct
3 Correct 7 ms 6648 KB Output is correct
4 Correct 7 ms 6648 KB Output is correct
5 Correct 7 ms 6524 KB Output is correct
6 Correct 7 ms 6520 KB Output is correct
7 Correct 7 ms 6520 KB Output is correct
8 Correct 7 ms 6520 KB Output is correct
9 Correct 7 ms 6520 KB Output is correct
10 Correct 7 ms 6520 KB Output is correct
11 Correct 7 ms 6648 KB Output is correct
12 Correct 7 ms 6520 KB Output is correct
13 Correct 7 ms 6648 KB Output is correct
14 Correct 7 ms 6648 KB Output is correct
15 Correct 7 ms 6520 KB Output is correct
16 Correct 7 ms 6648 KB Output is correct
17 Correct 7 ms 6648 KB Output is correct
18 Correct 7 ms 6520 KB Output is correct
19 Correct 7 ms 6520 KB Output is correct
20 Correct 7 ms 6648 KB Output is correct
21 Correct 7 ms 6648 KB Output is correct
22 Correct 7 ms 6620 KB Output is correct
23 Correct 7 ms 6520 KB Output is correct
24 Correct 7 ms 6648 KB Output is correct
25 Correct 8 ms 6648 KB Output is correct
26 Correct 8 ms 6652 KB Output is correct
27 Correct 7 ms 6648 KB Output is correct
28 Correct 7 ms 6520 KB Output is correct
29 Correct 7 ms 6648 KB Output is correct
30 Correct 7 ms 6520 KB Output is correct
31 Correct 9 ms 6520 KB Output is correct
32 Correct 7 ms 6648 KB Output is correct
33 Correct 7 ms 6520 KB Output is correct
34 Correct 7 ms 6648 KB Output is correct
35 Correct 7 ms 6648 KB Output is correct
36 Correct 7 ms 6648 KB Output is correct
37 Correct 7 ms 6520 KB Output is correct
38 Correct 8 ms 6648 KB Output is correct
39 Correct 7 ms 6648 KB Output is correct
40 Correct 7 ms 6648 KB Output is correct
41 Correct 8 ms 6648 KB Output is correct
42 Correct 8 ms 6776 KB Output is correct
43 Correct 8 ms 6648 KB Output is correct
44 Correct 8 ms 6648 KB Output is correct
45 Correct 8 ms 6648 KB Output is correct
46 Correct 8 ms 6648 KB Output is correct
47 Correct 8 ms 6648 KB Output is correct
48 Correct 8 ms 6648 KB Output is correct
49 Correct 8 ms 6620 KB Output is correct
50 Correct 8 ms 6652 KB Output is correct
51 Correct 8 ms 6648 KB Output is correct
52 Correct 9 ms 6648 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6520 KB Output is correct
2 Correct 7 ms 6648 KB Output is correct
3 Correct 7 ms 6648 KB Output is correct
4 Correct 7 ms 6648 KB Output is correct
5 Correct 7 ms 6524 KB Output is correct
6 Correct 7 ms 6520 KB Output is correct
7 Correct 7 ms 6520 KB Output is correct
8 Correct 7 ms 6520 KB Output is correct
9 Correct 7 ms 6520 KB Output is correct
10 Correct 7 ms 6520 KB Output is correct
11 Correct 7 ms 6648 KB Output is correct
12 Correct 7 ms 6520 KB Output is correct
13 Correct 7 ms 6648 KB Output is correct
14 Correct 7 ms 6648 KB Output is correct
15 Correct 7 ms 6520 KB Output is correct
16 Correct 7 ms 6648 KB Output is correct
17 Correct 7 ms 6648 KB Output is correct
18 Correct 7 ms 6520 KB Output is correct
19 Correct 7 ms 6520 KB Output is correct
20 Correct 7 ms 6648 KB Output is correct
21 Correct 7 ms 6648 KB Output is correct
22 Correct 7 ms 6620 KB Output is correct
23 Correct 7 ms 6520 KB Output is correct
24 Correct 7 ms 6648 KB Output is correct
25 Correct 8 ms 6648 KB Output is correct
26 Correct 8 ms 6652 KB Output is correct
27 Correct 7 ms 6648 KB Output is correct
28 Correct 7 ms 6520 KB Output is correct
29 Correct 7 ms 6648 KB Output is correct
30 Correct 7 ms 6520 KB Output is correct
31 Correct 9 ms 6520 KB Output is correct
32 Correct 7 ms 6648 KB Output is correct
33 Correct 7 ms 6520 KB Output is correct
34 Correct 7 ms 6648 KB Output is correct
35 Correct 7 ms 6648 KB Output is correct
36 Correct 7 ms 6648 KB Output is correct
37 Correct 8 ms 6624 KB Output is correct
38 Correct 7 ms 6648 KB Output is correct
39 Correct 7 ms 6648 KB Output is correct
40 Correct 7 ms 6652 KB Output is correct
41 Correct 7 ms 6648 KB Output is correct
42 Correct 7 ms 6652 KB Output is correct
43 Correct 7 ms 6648 KB Output is correct
44 Correct 9 ms 6520 KB Output is correct
45 Correct 7 ms 6652 KB Output is correct
46 Correct 9 ms 6648 KB Output is correct
47 Correct 8 ms 6648 KB Output is correct
48 Correct 7 ms 6648 KB Output is correct
49 Correct 7 ms 6648 KB Output is correct
50 Correct 7 ms 6520 KB Output is correct
51 Correct 8 ms 6648 KB Output is correct
52 Correct 8 ms 6648 KB Output is correct
53 Correct 8 ms 6648 KB Output is correct
54 Correct 13 ms 7032 KB Output is correct
55 Correct 13 ms 7160 KB Output is correct
56 Correct 67 ms 10784 KB Output is correct
57 Correct 60 ms 10656 KB Output is correct
58 Correct 68 ms 10728 KB Output is correct
59 Correct 63 ms 10868 KB Output is correct
60 Correct 67 ms 10656 KB Output is correct
61 Correct 59 ms 10652 KB Output is correct
62 Correct 64 ms 10864 KB Output is correct
63 Correct 67 ms 10864 KB Output is correct
64 Correct 64 ms 10864 KB Output is correct
65 Correct 67 ms 10640 KB Output is correct
66 Correct 64 ms 10992 KB Output is correct
67 Correct 62 ms 10864 KB Output is correct
68 Correct 64 ms 10964 KB Output is correct
69 Correct 7 ms 6652 KB Output is correct
70 Correct 7 ms 6648 KB Output is correct
71 Correct 63 ms 10836 KB Output is correct
72 Correct 64 ms 10864 KB Output is correct
73 Correct 64 ms 10908 KB Output is correct
74 Correct 7 ms 6648 KB Output is correct
75 Correct 7 ms 6648 KB Output is correct
76 Correct 7 ms 6520 KB Output is correct
77 Correct 7 ms 6520 KB Output is correct
78 Correct 103 ms 16008 KB Output is correct
79 Correct 79 ms 11256 KB Output is correct
80 Correct 109 ms 15996 KB Output is correct
81 Correct 70 ms 10756 KB Output is correct
82 Correct 103 ms 15992 KB Output is correct
83 Correct 94 ms 13048 KB Output is correct
84 Correct 7 ms 6520 KB Output is correct
85 Correct 8 ms 6648 KB Output is correct
86 Correct 7 ms 6648 KB Output is correct
87 Correct 7 ms 6648 KB Output is correct
88 Correct 8 ms 6648 KB Output is correct
89 Correct 8 ms 6776 KB Output is correct
90 Correct 8 ms 6648 KB Output is correct
91 Correct 8 ms 6648 KB Output is correct
92 Correct 8 ms 6648 KB Output is correct
93 Correct 8 ms 6648 KB Output is correct
94 Correct 8 ms 6648 KB Output is correct
95 Correct 8 ms 6648 KB Output is correct
96 Correct 8 ms 6620 KB Output is correct
97 Correct 8 ms 6652 KB Output is correct
98 Correct 8 ms 6648 KB Output is correct
99 Correct 9 ms 6648 KB Output is correct
100 Correct 8 ms 6648 KB Output is correct
101 Correct 15 ms 7416 KB Output is correct
102 Correct 14 ms 7032 KB Output is correct
103 Correct 120 ms 15992 KB Output is correct
104 Correct 108 ms 15992 KB Output is correct
105 Correct 107 ms 13276 KB Output is correct
106 Correct 98 ms 15992 KB Output is correct
107 Correct 82 ms 11384 KB Output is correct
108 Correct 83 ms 11768 KB Output is correct
109 Correct 64 ms 10992 KB Output is correct
110 Correct 63 ms 10992 KB Output is correct
111 Correct 104 ms 15352 KB Output is correct
112 Correct 105 ms 14716 KB Output is correct
113 Correct 81 ms 11280 KB Output is correct
114 Correct 104 ms 15992 KB Output is correct
115 Correct 104 ms 15992 KB Output is correct