oj.uz

Submission #721419

# Submission time Handle Problem Language Result Execution time Memory
721419 2023-04-10T20:50:42 Z sofija6 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 629 ms 148756 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll n;
struct bit
{
    vector<ll> v;
    void Init()
    {
        v.resize(n+5);
    }
    void Add(ll pos,ll val)
    {
        for (ll i=pos;i<=n;i+=i&(-i))
            v[i]+=val;
    }
    ll Sum(ll pos)
    {
        ll ans=0;
        for (ll i=pos;i>0;i-=i&(-i))
            ans+=v[i];
        return ans;
    }
    ll Calc(ll l,ll r)
    {
        return Sum(r)-Sum(l-1);
    }
};
ll count_swaps(vector<int> S)
{
    n=S.size();
    bit B;
    B.Init();
    map<ll,queue<ll> > posl,posr;
    ll ans=0;
    for (ll i=0;i<n;i++)
    {
        if (S[i]>0)
            posr[S[i]].push(i+1);
        else
            posl[-S[i]].push(i+1);
        B.Add(i+1,1);
    }
    for (ll i=0;i<n;i++)
    {
        if (S[i]>0 && (!posr[S[i]].empty() && posr[S[i]].front()==i+1))
        {
            ans+=B.Calc(i+1,posl[S[i]].front()-1);
            B.Add(posl[S[i]].front(),-1);
            posl[S[i]].pop();
            posr[S[i]].pop();
            continue;
        }
        if (S[i]<0 && (!posl[-S[i]].empty() && posl[-S[i]].front()==i+1))
        {
            ans+=B.Calc(i+2,posr[-S[i]].front()-1);
            B.Add(posr[-S[i]].front(),-1);
            posl[-S[i]].pop();
            posr[-S[i]].pop();
        }
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 300 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 300 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 0 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Correct 1 ms 296 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 1 ms 308 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 4 ms 852 KB Output is correct
21 Correct 3 ms 852 KB Output is correct
22 Correct 31 ms 6312 KB Output is correct
23 Correct 30 ms 6320 KB Output is correct
24 Correct 31 ms 6316 KB Output is correct
25 Correct 27 ms 6072 KB Output is correct
26 Correct 33 ms 6320 KB Output is correct
27 Correct 31 ms 6100 KB Output is correct
28 Correct 28 ms 6316 KB Output is correct
29 Correct 28 ms 6356 KB Output is correct
30 Correct 27 ms 6316 KB Output is correct
31 Correct 33 ms 6316 KB Output is correct
32 Correct 27 ms 6324 KB Output is correct
33 Correct 28 ms 6068 KB Output is correct
34 Correct 29 ms 6344 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 28 ms 6304 KB Output is correct
38 Correct 27 ms 6276 KB Output is correct
39 Correct 28 ms 6320 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 567 ms 147600 KB Output is correct
6 Correct 165 ms 17180 KB Output is correct
7 Correct 528 ms 148708 KB Output is correct
8 Correct 30 ms 6324 KB Output is correct
9 Correct 537 ms 148640 KB Output is correct
10 Correct 410 ms 76564 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 300 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 300 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 300 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 596 KB Output is correct
41 Correct 2 ms 1712 KB Output is correct
42 Correct 3 ms 1748 KB Output is correct
43 Correct 3 ms 1492 KB Output is correct
44 Correct 2 ms 1364 KB Output is correct
45 Correct 2 ms 1236 KB Output is correct
46 Correct 2 ms 1072 KB Output is correct
47 Correct 2 ms 952 KB Output is correct
48 Correct 2 ms 724 KB Output is correct
49 Correct 1 ms 560 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 304 KB Output is correct
52 Correct 2 ms 1748 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 296 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 300 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 300 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 296 KB Output is correct
39 Correct 1 ms 300 KB Output is correct
40 Correct 0 ms 300 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 296 KB Output is correct
47 Correct 1 ms 296 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 304 KB Output is correct
52 Correct 1 ms 308 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 4 ms 852 KB Output is correct
55 Correct 3 ms 852 KB Output is correct
56 Correct 31 ms 6312 KB Output is correct
57 Correct 30 ms 6320 KB Output is correct
58 Correct 31 ms 6316 KB Output is correct
59 Correct 27 ms 6072 KB Output is correct
60 Correct 33 ms 6320 KB Output is correct
61 Correct 31 ms 6100 KB Output is correct
62 Correct 28 ms 6316 KB Output is correct
63 Correct 28 ms 6356 KB Output is correct
64 Correct 27 ms 6316 KB Output is correct
65 Correct 33 ms 6316 KB Output is correct
66 Correct 27 ms 6324 KB Output is correct
67 Correct 28 ms 6068 KB Output is correct
68 Correct 29 ms 6344 KB Output is correct
69 Correct 1 ms 212 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 28 ms 6304 KB Output is correct
72 Correct 27 ms 6276 KB Output is correct
73 Correct 28 ms 6320 KB Output is correct
74 Correct 1 ms 212 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 0 ms 300 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 567 ms 147600 KB Output is correct
79 Correct 165 ms 17180 KB Output is correct
80 Correct 528 ms 148708 KB Output is correct
81 Correct 30 ms 6324 KB Output is correct
82 Correct 537 ms 148640 KB Output is correct
83 Correct 410 ms 76564 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 1 ms 300 KB Output is correct
86 Correct 1 ms 340 KB Output is correct
87 Correct 1 ms 596 KB Output is correct
88 Correct 2 ms 1712 KB Output is correct
89 Correct 3 ms 1748 KB Output is correct
90 Correct 3 ms 1492 KB Output is correct
91 Correct 2 ms 1364 KB Output is correct
92 Correct 2 ms 1236 KB Output is correct
93 Correct 2 ms 1072 KB Output is correct
94 Correct 2 ms 952 KB Output is correct
95 Correct 2 ms 724 KB Output is correct
96 Correct 1 ms 560 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 1 ms 304 KB Output is correct
99 Correct 2 ms 1748 KB Output is correct
100 Correct 3 ms 1748 KB Output is correct
101 Correct 32 ms 13636 KB Output is correct
102 Correct 15 ms 3560 KB Output is correct
103 Correct 629 ms 148756 KB Output is correct
104 Correct 512 ms 148700 KB Output is correct
105 Correct 448 ms 86484 KB Output is correct
106 Correct 562 ms 148700 KB Output is correct
107 Correct 196 ms 20652 KB Output is correct
108 Correct 260 ms 36676 KB Output is correct
109 Correct 29 ms 6356 KB Output is correct
110 Correct 28 ms 6312 KB Output is correct
111 Correct 516 ms 132692 KB Output is correct
112 Correct 563 ms 116692 KB Output is correct
113 Correct 196 ms 22480 KB Output is correct
114 Correct 532 ms 148592 KB Output is correct
115 Correct 552 ms 148704 KB Output is correct