oj.uz

답안 #284543

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
284543 2020-08-27T15:34:10 Z ScarletS Arranging Shoes (IOI19_shoes) C++17
100 / 100
 151 ms 17016 KB 
#include <bits/stdc++.h>
#define ll long long
#define sz(x) (int)(x).size()
using namespace std;

int segTree[1000000];

void update(int i, int cL, int cR, int r)
{
    if (cR<=r)
    {
        ++segTree[i];
        return;
    }
    if (r<cL)
        return;
    int m=cL+((cR-cL)>>1);
    update((i<<1)+1,cL,m,r);
    update((i<<1)+2,m+1,cR,r);
}

int query(int i, int cL, int cR, int x)
{
    if (x<cL||cR<x)
        return 0;
    if (cL==cR)
        return segTree[i];
    int m=cL+((cR-cL)>>1);
    return segTree[i]+query((i<<1)+1,cL,m,x)+query((i<<1)+2,m+1,cR,x);
}

vector<int> neg[100001];
vector<int> pos[100001];

ll count_swaps(vector<int> a)
{
    int n=sz(a),c=-1;
    ll ans=0;
    for (int i=0;i<n;++i)
    {
        if (a[i]<0)
            neg[-a[i]].push_back(i);
        else
            pos[a[i]].push_back(i);
    }
    n>>=1;
    pair<int,int> p[n];
    for (int i=1;i<100001;++i)
        for (int j=0;j<sz(pos[i]);++j)
            p[++c]={min(neg[i][j],pos[i][j]),max(neg[i][j],pos[i][j])};
    sort(p,p+n);
    for (int i=0;i<n;++i)
    {
        if (a[p[i].first]<0)
        {
            //cout<<p[i].first<<" "<<p[i].second<<"\n";
            //cout<<query(0,0,200000,p[i].first)<<" + "<<p[i].first<<" - "<<((i<<1))<<"\n";
            ans+=query(0,0,200000,p[i].first)+p[i].first-(i<<1);
            update(0,0,200000,p[i].first);
            //cout<<query(0,0,200000,p[i].second)<<" + "<<p[i].second<<" - "<<((i<<1)+1)<<"\n";
            ans+=query(0,0,200000,p[i].second)+p[i].second-(i<<1)-1;
            update(0,0,200000,p[i].second);
            //cout<<ans<<"\n";
        }
        else
        {
            //cout<<p[i].first<<" "<<p[i].second<<"\n";
            //cout<<query(0,0,200000,p[i].first)<<" + "<<p[i].first<<" - "<<((i<<1))<<"\n";
            ans+=query(0,0,200000,p[i].second)+p[i].second-(i<<1);
            update(0,0,200000,p[i].second);
            //cout<<query(0,0,200000,p[i].second)<<" + "<<p[i].second<<" - "<<((i<<1)+1)<<"\n";
            ans+=query(0,0,200000,p[i].first)+p[i].first-(i<<1)-1;
            update(0,0,200000,p[i].first);
            //cout<<ans<<"\n";
        }
    }
    return ans;
}

/**int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n;
    cin>>n;
    vector<int> a((n<<1));
    for (int i=0;i<(n<<1);++i)
        cin>>a[i];
    cout<<count_swaps(a);
    return 0;
}**/

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 5072 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 5 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 4 ms 4992 KB Output is correct
26 Correct 4 ms 4992 KB Output is correct
27 Correct 4 ms 4992 KB Output is correct
28 Correct 4 ms 4992 KB Output is correct
29 Correct 4 ms 4992 KB Output is correct
30 Correct 4 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 4 ms 4992 KB Output is correct
33 Correct 4 ms 4992 KB Output is correct
34 Correct 4 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 5120 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 5 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 5120 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 5 ms 5120 KB Output is correct
19 Correct 5 ms 5120 KB Output is correct
20 Correct 12 ms 5760 KB Output is correct
21 Correct 12 ms 5760 KB Output is correct
22 Correct 84 ms 11544 KB Output is correct
23 Correct 84 ms 11704 KB Output is correct
24 Correct 86 ms 11676 KB Output is correct
25 Correct 78 ms 11376 KB Output is correct
26 Correct 86 ms 11756 KB Output is correct
27 Correct 85 ms 11500 KB Output is correct
28 Correct 81 ms 11632 KB Output is correct
29 Correct 79 ms 11632 KB Output is correct
30 Correct 82 ms 11632 KB Output is correct
31 Correct 86 ms 11660 KB Output is correct
32 Correct 85 ms 11632 KB Output is correct
33 Correct 78 ms 11376 KB Output is correct
34 Correct 78 ms 11632 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 79 ms 11632 KB Output is correct
38 Correct 82 ms 11632 KB Output is correct
39 Correct 81 ms 11632 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 5 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 123 ms 16888 KB Output is correct
6 Correct 101 ms 12152 KB Output is correct
7 Correct 141 ms 16888 KB Output is correct
8 Correct 87 ms 11612 KB Output is correct
9 Correct 125 ms 17016 KB Output is correct
10 Correct 116 ms 13816 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 5072 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 5 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 4 ms 4992 KB Output is correct
26 Correct 4 ms 4992 KB Output is correct
27 Correct 4 ms 4992 KB Output is correct
28 Correct 4 ms 4992 KB Output is correct
29 Correct 4 ms 4992 KB Output is correct
30 Correct 4 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 4 ms 4992 KB Output is correct
33 Correct 4 ms 4992 KB Output is correct
34 Correct 4 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 4 ms 4992 KB Output is correct
39 Correct 5 ms 5120 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 5 ms 5120 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct
43 Correct 5 ms 5120 KB Output is correct
44 Correct 5 ms 5120 KB Output is correct
45 Correct 5 ms 5120 KB Output is correct
46 Correct 5 ms 5120 KB Output is correct
47 Correct 6 ms 5120 KB Output is correct
48 Correct 5 ms 5120 KB Output is correct
49 Correct 5 ms 5120 KB Output is correct
50 Correct 4 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 5 ms 5200 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 4 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 4 ms 4992 KB Output is correct
9 Correct 4 ms 4992 KB Output is correct
10 Correct 4 ms 4992 KB Output is correct
11 Correct 4 ms 5072 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 5 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 4 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 4 ms 4992 KB Output is correct
20 Correct 4 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 4 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 4 ms 4992 KB Output is correct
25 Correct 4 ms 4992 KB Output is correct
26 Correct 4 ms 4992 KB Output is correct
27 Correct 4 ms 4992 KB Output is correct
28 Correct 4 ms 4992 KB Output is correct
29 Correct 4 ms 4992 KB Output is correct
30 Correct 4 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 4 ms 4992 KB Output is correct
33 Correct 4 ms 4992 KB Output is correct
34 Correct 4 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 4 ms 4992 KB Output is correct
39 Correct 4 ms 4992 KB Output is correct
40 Correct 4 ms 4992 KB Output is correct
41 Correct 4 ms 4992 KB Output is correct
42 Correct 4 ms 4992 KB Output is correct
43 Correct 4 ms 5120 KB Output is correct
44 Correct 4 ms 4992 KB Output is correct
45 Correct 4 ms 4992 KB Output is correct
46 Correct 4 ms 4992 KB Output is correct
47 Correct 5 ms 4992 KB Output is correct
48 Correct 4 ms 4992 KB Output is correct
49 Correct 4 ms 4992 KB Output is correct
50 Correct 4 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 5 ms 5120 KB Output is correct
53 Correct 5 ms 5120 KB Output is correct
54 Correct 12 ms 5760 KB Output is correct
55 Correct 12 ms 5760 KB Output is correct
56 Correct 84 ms 11544 KB Output is correct
57 Correct 84 ms 11704 KB Output is correct
58 Correct 86 ms 11676 KB Output is correct
59 Correct 78 ms 11376 KB Output is correct
60 Correct 86 ms 11756 KB Output is correct
61 Correct 85 ms 11500 KB Output is correct
62 Correct 81 ms 11632 KB Output is correct
63 Correct 79 ms 11632 KB Output is correct
64 Correct 82 ms 11632 KB Output is correct
65 Correct 86 ms 11660 KB Output is correct
66 Correct 85 ms 11632 KB Output is correct
67 Correct 78 ms 11376 KB Output is correct
68 Correct 78 ms 11632 KB Output is correct
69 Correct 4 ms 4992 KB Output is correct
70 Correct 4 ms 4992 KB Output is correct
71 Correct 79 ms 11632 KB Output is correct
72 Correct 82 ms 11632 KB Output is correct
73 Correct 81 ms 11632 KB Output is correct
74 Correct 4 ms 4992 KB Output is correct
75 Correct 5 ms 4992 KB Output is correct
76 Correct 4 ms 4992 KB Output is correct
77 Correct 4 ms 4992 KB Output is correct
78 Correct 123 ms 16888 KB Output is correct
79 Correct 101 ms 12152 KB Output is correct
80 Correct 141 ms 16888 KB Output is correct
81 Correct 87 ms 11612 KB Output is correct
82 Correct 125 ms 17016 KB Output is correct
83 Correct 116 ms 13816 KB Output is correct
84 Correct 4 ms 4992 KB Output is correct
85 Correct 4 ms 4992 KB Output is correct
86 Correct 5 ms 5120 KB Output is correct
87 Correct 4 ms 5120 KB Output is correct
88 Correct 5 ms 5120 KB Output is correct
89 Correct 5 ms 5120 KB Output is correct
90 Correct 5 ms 5120 KB Output is correct
91 Correct 5 ms 5120 KB Output is correct
92 Correct 5 ms 5120 KB Output is correct
93 Correct 5 ms 5120 KB Output is correct
94 Correct 6 ms 5120 KB Output is correct
95 Correct 5 ms 5120 KB Output is correct
96 Correct 5 ms 5120 KB Output is correct
97 Correct 4 ms 5120 KB Output is correct
98 Correct 4 ms 5120 KB Output is correct
99 Correct 5 ms 5200 KB Output is correct
100 Correct 5 ms 5120 KB Output is correct
101 Correct 16 ms 6144 KB Output is correct
102 Correct 18 ms 5792 KB Output is correct
103 Correct 148 ms 16888 KB Output is correct
104 Correct 137 ms 17016 KB Output is correct
105 Correct 142 ms 14328 KB Output is correct
106 Correct 124 ms 16888 KB Output is correct
107 Correct 114 ms 12280 KB Output is correct
108 Correct 117 ms 12664 KB Output is correct
109 Correct 94 ms 12016 KB Output is correct
110 Correct 80 ms 11632 KB Output is correct
111 Correct 119 ms 16248 KB Output is correct
112 Correct 151 ms 15544 KB Output is correct
113 Correct 137 ms 12280 KB Output is correct
114 Correct 122 ms 16888 KB Output is correct
115 Correct 120 ms 16888 KB Output is correct