oj.uz

Submission #289902

# Submission time Handle Problem Language Result Execution time Memory
289902 2020-09-03T08:14:23 Z evpipis Arranging Shoes (IOI19_shoes) C++14
100 / 100
 113 ms 21248 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

#define pb push_back
typedef long long ll;
const int len = 2e5+5, mx = 2e5;
int vis[len], tree[len], shoe[len];
vector<int> lef[len], rig[len];

void upd(int i, int v){
    while (i <= mx)
        tree[i] += v, i += i&(-i);
}

int ask(int i){
    int ans = 0;
    while (i > 0)
        ans += tree[i], i -= i&(-i);
    return ans;
}

ll count_swaps(vector<int> S) {
    ll ans = 0;
    int n = S.size();

    for (int i = 1; i <= n; i++)
        shoe[i] = S[i-1];

    for (int i = n; i >= 1; i--){
        if (shoe[i] > 0) rig[shoe[i]].pb(i);
        else lef[-shoe[i]].pb(i);

        upd(i, +1);
    }

    for (int i = 1; i <= n; i++){
        if (vis[i]) continue;

        int j = lef[abs(shoe[i])].back();
        if (shoe[i] < 0)
            j = rig[abs(shoe[i])].back();

        ans += ask(j)-2 + (shoe[i] > 0);

        vis[i] = vis[j] = 1;
        upd(i, -1), upd(j, -1);
        lef[abs(shoe[i])].pop_back();
        rig[abs(shoe[i])].pop_back();
    }

	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 8 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 7 ms 9728 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 7 ms 9728 KB Output is correct
23 Correct 7 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 7 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 7 ms 9728 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 7 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 8 ms 9728 KB Output is correct
5 Correct 7 ms 9856 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9856 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 11 ms 10240 KB Output is correct
21 Correct 11 ms 10240 KB Output is correct
22 Correct 53 ms 14520 KB Output is correct
23 Correct 50 ms 14700 KB Output is correct
24 Correct 56 ms 14484 KB Output is correct
25 Correct 42 ms 14576 KB Output is correct
26 Correct 50 ms 15852 KB Output is correct
27 Correct 48 ms 15648 KB Output is correct
28 Correct 46 ms 15856 KB Output is correct
29 Correct 47 ms 15856 KB Output is correct
30 Correct 49 ms 15856 KB Output is correct
31 Correct 51 ms 15748 KB Output is correct
32 Correct 48 ms 15856 KB Output is correct
33 Correct 43 ms 15600 KB Output is correct
34 Correct 48 ms 15856 KB Output is correct
35 Correct 7 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct
37 Correct 45 ms 15856 KB Output is correct
38 Correct 46 ms 15856 KB Output is correct
39 Correct 48 ms 15856 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 82 ms 19832 KB Output is correct
6 Correct 70 ms 16376 KB Output is correct
7 Correct 87 ms 21112 KB Output is correct
8 Correct 46 ms 15796 KB Output is correct
9 Correct 86 ms 21240 KB Output is correct
10 Correct 110 ms 18168 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 8 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 7 ms 9728 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 7 ms 9728 KB Output is correct
23 Correct 7 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 7 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 7 ms 9728 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 7 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct
37 Correct 7 ms 9728 KB Output is correct
38 Correct 7 ms 9728 KB Output is correct
39 Correct 7 ms 9728 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 7 ms 9856 KB Output is correct
42 Correct 8 ms 9984 KB Output is correct
43 Correct 7 ms 9856 KB Output is correct
44 Correct 7 ms 9856 KB Output is correct
45 Correct 8 ms 9856 KB Output is correct
46 Correct 7 ms 9856 KB Output is correct
47 Correct 7 ms 9856 KB Output is correct
48 Correct 7 ms 9856 KB Output is correct
49 Correct 7 ms 9728 KB Output is correct
50 Correct 7 ms 9728 KB Output is correct
51 Correct 7 ms 9728 KB Output is correct
52 Correct 7 ms 9856 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 8 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 7 ms 9728 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 7 ms 9728 KB Output is correct
23 Correct 7 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 7 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 7 ms 9728 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 7 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct
37 Correct 7 ms 9728 KB Output is correct
38 Correct 8 ms 9728 KB Output is correct
39 Correct 7 ms 9856 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 7 ms 9728 KB Output is correct
42 Correct 7 ms 9728 KB Output is correct
43 Correct 7 ms 9728 KB Output is correct
44 Correct 7 ms 9856 KB Output is correct
45 Correct 7 ms 9728 KB Output is correct
46 Correct 7 ms 9728 KB Output is correct
47 Correct 7 ms 9728 KB Output is correct
48 Correct 7 ms 9728 KB Output is correct
49 Correct 7 ms 9728 KB Output is correct
50 Correct 7 ms 9728 KB Output is correct
51 Correct 7 ms 9728 KB Output is correct
52 Correct 7 ms 9728 KB Output is correct
53 Correct 7 ms 9728 KB Output is correct
54 Correct 11 ms 10240 KB Output is correct
55 Correct 11 ms 10240 KB Output is correct
56 Correct 53 ms 14520 KB Output is correct
57 Correct 50 ms 14700 KB Output is correct
58 Correct 56 ms 14484 KB Output is correct
59 Correct 42 ms 14576 KB Output is correct
60 Correct 50 ms 15852 KB Output is correct
61 Correct 48 ms 15648 KB Output is correct
62 Correct 46 ms 15856 KB Output is correct
63 Correct 47 ms 15856 KB Output is correct
64 Correct 49 ms 15856 KB Output is correct
65 Correct 51 ms 15748 KB Output is correct
66 Correct 48 ms 15856 KB Output is correct
67 Correct 43 ms 15600 KB Output is correct
68 Correct 48 ms 15856 KB Output is correct
69 Correct 7 ms 9728 KB Output is correct
70 Correct 7 ms 9728 KB Output is correct
71 Correct 45 ms 15856 KB Output is correct
72 Correct 46 ms 15856 KB Output is correct
73 Correct 48 ms 15856 KB Output is correct
74 Correct 7 ms 9728 KB Output is correct
75 Correct 7 ms 9728 KB Output is correct
76 Correct 7 ms 9728 KB Output is correct
77 Correct 7 ms 9728 KB Output is correct
78 Correct 82 ms 19832 KB Output is correct
79 Correct 70 ms 16376 KB Output is correct
80 Correct 87 ms 21112 KB Output is correct
81 Correct 46 ms 15796 KB Output is correct
82 Correct 86 ms 21240 KB Output is correct
83 Correct 110 ms 18168 KB Output is correct
84 Correct 7 ms 9728 KB Output is correct
85 Correct 7 ms 9728 KB Output is correct
86 Correct 7 ms 9728 KB Output is correct
87 Correct 7 ms 9728 KB Output is correct
88 Correct 7 ms 9856 KB Output is correct
89 Correct 8 ms 9984 KB Output is correct
90 Correct 7 ms 9856 KB Output is correct
91 Correct 7 ms 9856 KB Output is correct
92 Correct 8 ms 9856 KB Output is correct
93 Correct 7 ms 9856 KB Output is correct
94 Correct 7 ms 9856 KB Output is correct
95 Correct 7 ms 9856 KB Output is correct
96 Correct 7 ms 9728 KB Output is correct
97 Correct 7 ms 9728 KB Output is correct
98 Correct 7 ms 9728 KB Output is correct
99 Correct 7 ms 9856 KB Output is correct
100 Correct 8 ms 9856 KB Output is correct
101 Correct 13 ms 10752 KB Output is correct
102 Correct 13 ms 10368 KB Output is correct
103 Correct 113 ms 21116 KB Output is correct
104 Correct 100 ms 21164 KB Output is correct
105 Correct 106 ms 18580 KB Output is correct
106 Correct 88 ms 21248 KB Output is correct
107 Correct 78 ms 16504 KB Output is correct
108 Correct 85 ms 16780 KB Output is correct
109 Correct 47 ms 15792 KB Output is correct
110 Correct 46 ms 15856 KB Output is correct
111 Correct 90 ms 20472 KB Output is correct
112 Correct 106 ms 19756 KB Output is correct
113 Correct 76 ms 16504 KB Output is correct
114 Correct 87 ms 21112 KB Output is correct
115 Correct 82 ms 21112 KB Output is correct