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Submission #303827

# Submission time Handle Problem Language Result Execution time Memory
303827 2020-09-20T16:39:56 Z noob_c0de Arranging Shoes (IOI19_shoes) C++17
100 / 100
 118 ms 19064 KB 
#include<bits/stdc++.h>
using namespace std;
#define ar array
const int mxn=2e5+3;
int n;
vector<int> pos[mxn],neg[mxn];
int ft[2*mxn];
int vis[mxn];
void upd(int u,int d)
{
    while(u<=n)
    {
        ft[u]+=d;
        u+=u&-u;
    }
}
int get(int u)
{
    int res=0;
    while(u)
    {
        res+=ft[u];
        u-=u&-u;
    }
    return res;
}
int count_swaps(vector<int> a)
{
    n=a.size();
    for (int i=n;i>=1;i--)
    {
        if (a[i-1]>0) pos[a[i-1]].push_back(i);
        else neg[-a[i-1]].push_back(i);
    }
    long long ans=0;
    for (int i=1;i<=n;i++)
    if (!vis[i])
    {
        int vt;
        if (a[i-1]>0) vt=neg[a[i-1]].back();
        else vt=pos[-a[i-1]].back();
        pos[abs(a[i-1])].pop_back();
        neg[abs(a[i-1])].pop_back();
        ans+=(vt+get(vt))-(i+get(i))-1;
        if (a[i-1]>0) ans++;
        upd(1,1);
        if (vt+1<=n) upd(vt+1,-1);
        vis[vt]=1;
    }
    return(ans);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 7 ms 9760 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 8 ms 9728 KB Output is correct
15 Correct 8 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 8 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 6 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 6 ms 9728 KB Output is correct
31 Correct 6 ms 9728 KB Output is correct
32 Correct 6 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 6 ms 9728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 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 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 8 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 6 ms 9728 KB Output is correct
14 Correct 6 ms 9728 KB Output is correct
15 Correct 8 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 8 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 8 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 48 ms 13696 KB Output is correct
23 Correct 49 ms 13804 KB Output is correct
24 Correct 57 ms 13716 KB Output is correct
25 Correct 45 ms 13044 KB Output is correct
26 Correct 49 ms 13804 KB Output is correct
27 Correct 43 ms 13804 KB Output is correct
28 Correct 44 ms 13040 KB Output is correct
29 Correct 47 ms 12980 KB Output is correct
30 Correct 47 ms 13040 KB Output is correct
31 Correct 61 ms 13700 KB Output is correct
32 Correct 53 ms 13040 KB Output is correct
33 Correct 56 ms 13072 KB Output is correct
34 Correct 50 ms 13040 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 44 ms 13040 KB Output is correct
38 Correct 44 ms 13040 KB Output is correct
39 Correct 52 ms 13052 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 8 ms 9692 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 81 ms 18424 KB Output is correct
6 Correct 75 ms 13688 KB Output is correct
7 Correct 82 ms 18296 KB Output is correct
8 Correct 55 ms 12980 KB Output is correct
9 Correct 82 ms 18296 KB Output is correct
10 Correct 90 ms 15224 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 7 ms 9760 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 8 ms 9728 KB Output is correct
15 Correct 8 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 8 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 6 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 6 ms 9728 KB Output is correct
31 Correct 6 ms 9728 KB Output is correct
32 Correct 6 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 6 ms 9728 KB Output is correct
37 Correct 7 ms 9728 KB Output is correct
38 Correct 6 ms 9728 KB Output is correct
39 Correct 6 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 9856 KB Output is correct
43 Correct 8 ms 9856 KB Output is correct
44 Correct 7 ms 9728 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 8 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 9856 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 7 ms 9760 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 8 ms 9728 KB Output is correct
15 Correct 8 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 8 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 6 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 6 ms 9728 KB Output is correct
31 Correct 6 ms 9728 KB Output is correct
32 Correct 6 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 6 ms 9728 KB Output is correct
37 Correct 6 ms 9728 KB Output is correct
38 Correct 6 ms 9728 KB Output is correct
39 Correct 6 ms 9728 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 7 ms 9728 KB Output is correct
42 Correct 6 ms 9728 KB Output is correct
43 Correct 6 ms 9728 KB Output is correct
44 Correct 8 ms 9728 KB Output is correct
45 Correct 7 ms 9728 KB Output is correct
46 Correct 6 ms 9728 KB Output is correct
47 Correct 6 ms 9728 KB Output is correct
48 Correct 6 ms 9728 KB Output is correct
49 Correct 8 ms 9728 KB Output is correct
50 Correct 6 ms 9728 KB Output is correct
51 Correct 8 ms 9728 KB Output is correct
52 Correct 7 ms 9728 KB Output is correct
53 Correct 8 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 48 ms 13696 KB Output is correct
57 Correct 49 ms 13804 KB Output is correct
58 Correct 57 ms 13716 KB Output is correct
59 Correct 45 ms 13044 KB Output is correct
60 Correct 49 ms 13804 KB Output is correct
61 Correct 43 ms 13804 KB Output is correct
62 Correct 44 ms 13040 KB Output is correct
63 Correct 47 ms 12980 KB Output is correct
64 Correct 47 ms 13040 KB Output is correct
65 Correct 61 ms 13700 KB Output is correct
66 Correct 53 ms 13040 KB Output is correct
67 Correct 56 ms 13072 KB Output is correct
68 Correct 50 ms 13040 KB Output is correct
69 Correct 6 ms 9728 KB Output is correct
70 Correct 6 ms 9728 KB Output is correct
71 Correct 44 ms 13040 KB Output is correct
72 Correct 44 ms 13040 KB Output is correct
73 Correct 52 ms 13052 KB Output is correct
74 Correct 6 ms 9728 KB Output is correct
75 Correct 8 ms 9692 KB Output is correct
76 Correct 7 ms 9728 KB Output is correct
77 Correct 6 ms 9728 KB Output is correct
78 Correct 81 ms 18424 KB Output is correct
79 Correct 75 ms 13688 KB Output is correct
80 Correct 82 ms 18296 KB Output is correct
81 Correct 55 ms 12980 KB Output is correct
82 Correct 82 ms 18296 KB Output is correct
83 Correct 90 ms 15224 KB Output is correct
84 Correct 7 ms 9728 KB Output is correct
85 Correct 6 ms 9728 KB Output is correct
86 Correct 6 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 9856 KB Output is correct
90 Correct 8 ms 9856 KB Output is correct
91 Correct 7 ms 9728 KB Output is correct
92 Correct 7 ms 9728 KB Output is correct
93 Correct 7 ms 9728 KB Output is correct
94 Correct 7 ms 9728 KB Output is correct
95 Correct 8 ms 9728 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 7 ms 9856 KB Output is correct
101 Correct 15 ms 10624 KB Output is correct
102 Correct 13 ms 10232 KB Output is correct
103 Correct 113 ms 19064 KB Output is correct
104 Correct 109 ms 19064 KB Output is correct
105 Correct 118 ms 16376 KB Output is correct
106 Correct 92 ms 18424 KB Output is correct
107 Correct 86 ms 14456 KB Output is correct
108 Correct 80 ms 14844 KB Output is correct
109 Correct 44 ms 13112 KB Output is correct
110 Correct 44 ms 13040 KB Output is correct
111 Correct 88 ms 17656 KB Output is correct
112 Correct 114 ms 17656 KB Output is correct
113 Correct 95 ms 13688 KB Output is correct
114 Correct 96 ms 18424 KB Output is correct
115 Correct 83 ms 18296 KB Output is correct