oj.uz

Submission #204166

# Submission time Handle Problem Language Result Execution time Memory
204166 2020-02-24T19:19:38 Z medk Arranging Shoes (IOI19_shoes) C++14
100 / 100
 115 ms 15980 KB 
#include <bits/stdc++.h>
#include "shoes.h"

#define ll long long
#define pb push_back
#define x first
#define y second

using namespace std;

int n;
vector<int> a,bit;
vector<vector<int>> p1,p2;

void update(int x, int val)
{
    for(;x<=n;x+=x&-x)
        bit[x]+=val;
}

ll pre(int x)
{
    ll ret=0;
    for(;x>0;x-=x&-x)
        ret+=bit[x];
    return ret;
}

ll sm(int l, int r)
{
    return pre(r)-pre(l-1);
}

ll count_swaps(vector<int> S)
{
    ll ans=0;
    n=S.size();
    bit.resize(n+1);
    a.pb(0);
    for(int i=1;i<=n;i++) a.pb(1), update(i,1);
    p1.resize(n/2+1), p2=p1;
    for(int i=0;i<n;i++)
    {
        if(S[i]>0) p1[S[i]].pb(i+1);
        else p2[-S[i]].pb(i+1);
    }
    vector<int> pt(n/2+1,0);
    for(int i=1;i<=n;i++)
    {
        if(a[i]==0) continue;
        if(S[i-1]>0)
        {
            ans+=sm(i+1,p2[S[i-1]][pt[S[i-1]]]-1)+1;
            a[p2[S[i-1]][pt[S[i-1]]]]=0;
            update(i,-1), update(p2[S[i-1]][pt[S[i-1]]],-1);
            pt[S[i-1]]++;
        }
        else
        {
            ans+=sm(i+1,p1[-S[i-1]][pt[-S[i-1]]]-1);
            a[p1[-S[i-1]][pt[-S[i-1]]]]=0;
            update(i,-1), update(p1[-S[i-1]][pt[-S[i-1]]],-1);
            pt[-S[i-1]]++;
        }
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 6 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 380 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 256 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 5 ms 256 KB Output is correct
24 Correct 6 ms 256 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 256 KB Output is correct
27 Correct 5 ms 256 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 256 KB Output is correct
30 Correct 5 ms 256 KB Output is correct
31 Correct 5 ms 256 KB Output is correct
32 Correct 5 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 256 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 5 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 256 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 10 ms 1528 KB Output is correct
21 Correct 10 ms 1400 KB Output is correct
22 Correct 57 ms 10860 KB Output is correct
23 Correct 53 ms 10860 KB Output is correct
24 Correct 55 ms 10604 KB Output is correct
25 Correct 51 ms 10732 KB Output is correct
26 Correct 55 ms 10860 KB Output is correct
27 Correct 54 ms 10860 KB Output is correct
28 Correct 52 ms 10476 KB Output is correct
29 Correct 56 ms 10476 KB Output is correct
30 Correct 51 ms 10480 KB Output is correct
31 Correct 58 ms 10860 KB Output is correct
32 Correct 51 ms 10480 KB Output is correct
33 Correct 51 ms 10476 KB Output is correct
34 Correct 51 ms 10476 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 5 ms 632 KB Output is correct
37 Correct 53 ms 10476 KB Output is correct
38 Correct 52 ms 10480 KB Output is correct
39 Correct 53 ms 10476 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 6 ms 504 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 78 ms 15852 KB Output is correct
6 Correct 70 ms 10988 KB Output is correct
7 Correct 82 ms 15844 KB Output is correct
8 Correct 56 ms 10732 KB Output is correct
9 Correct 82 ms 15724 KB Output is correct
10 Correct 83 ms 12780 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 6 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 380 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 256 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 5 ms 256 KB Output is correct
24 Correct 6 ms 256 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 256 KB Output is correct
27 Correct 5 ms 256 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 256 KB Output is correct
30 Correct 5 ms 256 KB Output is correct
31 Correct 5 ms 256 KB Output is correct
32 Correct 5 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 256 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 5 ms 256 KB Output is correct
37 Correct 5 ms 256 KB Output is correct
38 Correct 5 ms 256 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 6 ms 504 KB Output is correct
42 Correct 5 ms 504 KB Output is correct
43 Correct 6 ms 504 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 5 ms 376 KB Output is correct
46 Correct 5 ms 376 KB Output is correct
47 Correct 5 ms 376 KB Output is correct
48 Correct 5 ms 376 KB Output is correct
49 Correct 5 ms 376 KB Output is correct
50 Correct 5 ms 376 KB Output is correct
51 Correct 5 ms 376 KB Output is correct
52 Correct 5 ms 504 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 6 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 6 ms 376 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 5 ms 380 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 256 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 5 ms 256 KB Output is correct
24 Correct 6 ms 256 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 256 KB Output is correct
27 Correct 5 ms 256 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 256 KB Output is correct
30 Correct 5 ms 256 KB Output is correct
31 Correct 5 ms 256 KB Output is correct
32 Correct 5 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 256 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 5 ms 256 KB Output is correct
37 Correct 5 ms 256 KB Output is correct
38 Correct 5 ms 256 KB Output is correct
39 Correct 5 ms 256 KB Output is correct
40 Correct 5 ms 256 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 5 ms 256 KB Output is correct
43 Correct 5 ms 256 KB Output is correct
44 Correct 5 ms 256 KB Output is correct
45 Correct 5 ms 256 KB Output is correct
46 Correct 5 ms 376 KB Output is correct
47 Correct 5 ms 256 KB Output is correct
48 Correct 5 ms 256 KB Output is correct
49 Correct 5 ms 256 KB Output is correct
50 Correct 5 ms 376 KB Output is correct
51 Correct 5 ms 376 KB Output is correct
52 Correct 5 ms 376 KB Output is correct
53 Correct 5 ms 376 KB Output is correct
54 Correct 10 ms 1528 KB Output is correct
55 Correct 10 ms 1400 KB Output is correct
56 Correct 57 ms 10860 KB Output is correct
57 Correct 53 ms 10860 KB Output is correct
58 Correct 55 ms 10604 KB Output is correct
59 Correct 51 ms 10732 KB Output is correct
60 Correct 55 ms 10860 KB Output is correct
61 Correct 54 ms 10860 KB Output is correct
62 Correct 52 ms 10476 KB Output is correct
63 Correct 56 ms 10476 KB Output is correct
64 Correct 51 ms 10480 KB Output is correct
65 Correct 58 ms 10860 KB Output is correct
66 Correct 51 ms 10480 KB Output is correct
67 Correct 51 ms 10476 KB Output is correct
68 Correct 51 ms 10476 KB Output is correct
69 Correct 5 ms 256 KB Output is correct
70 Correct 5 ms 632 KB Output is correct
71 Correct 53 ms 10476 KB Output is correct
72 Correct 52 ms 10480 KB Output is correct
73 Correct 53 ms 10476 KB Output is correct
74 Correct 5 ms 256 KB Output is correct
75 Correct 5 ms 256 KB Output is correct
76 Correct 6 ms 504 KB Output is correct
77 Correct 5 ms 256 KB Output is correct
78 Correct 78 ms 15852 KB Output is correct
79 Correct 70 ms 10988 KB Output is correct
80 Correct 82 ms 15844 KB Output is correct
81 Correct 56 ms 10732 KB Output is correct
82 Correct 82 ms 15724 KB Output is correct
83 Correct 83 ms 12780 KB Output is correct
84 Correct 5 ms 256 KB Output is correct
85 Correct 5 ms 256 KB Output is correct
86 Correct 5 ms 376 KB Output is correct
87 Correct 5 ms 376 KB Output is correct
88 Correct 6 ms 504 KB Output is correct
89 Correct 5 ms 504 KB Output is correct
90 Correct 6 ms 504 KB Output is correct
91 Correct 5 ms 376 KB Output is correct
92 Correct 5 ms 376 KB Output is correct
93 Correct 5 ms 376 KB Output is correct
94 Correct 5 ms 376 KB Output is correct
95 Correct 5 ms 376 KB Output is correct
96 Correct 5 ms 376 KB Output is correct
97 Correct 5 ms 376 KB Output is correct
98 Correct 5 ms 376 KB Output is correct
99 Correct 5 ms 504 KB Output is correct
100 Correct 6 ms 504 KB Output is correct
101 Correct 12 ms 1784 KB Output is correct
102 Correct 11 ms 1528 KB Output is correct
103 Correct 115 ms 15852 KB Output is correct
104 Correct 96 ms 15852 KB Output is correct
105 Correct 110 ms 13164 KB Output is correct
106 Correct 83 ms 15980 KB Output is correct
107 Correct 86 ms 11260 KB Output is correct
108 Correct 82 ms 11500 KB Output is correct
109 Correct 54 ms 10988 KB Output is correct
110 Correct 56 ms 10476 KB Output is correct
111 Correct 84 ms 15212 KB Output is correct
112 Correct 108 ms 14444 KB Output is correct
113 Correct 80 ms 11332 KB Output is correct
114 Correct 81 ms 15724 KB Output is correct
115 Correct 84 ms 15724 KB Output is correct