oj.uz

답안 #284544

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
284544 2020-08-27T15:35:19 Z ScarletS Arranging Shoes (IOI19_shoes) C++17
100 / 100
 154 ms 15864 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)
        {
            ans+=query(0,0,200000,p[i].first)+p[i].first-(i<<1);
            update(0,0,200000,p[i].first);
            ans+=query(0,0,200000,p[i].second)+p[i].second-(i<<1)-1;
            update(0,0,200000,p[i].second);
        }
        else
        {
            ans+=query(0,0,200000,p[i].second)+p[i].second-(i<<1);
            update(0,0,200000,p[i].second);
            ans+=query(0,0,200000,p[i].first)+p[i].first-(i<<1)-1;
            update(0,0,200000,p[i].first);
        }
    }
    return ans;
}

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 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 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 5 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 5120 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 5120 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 5120 KB Output is correct
32 Correct 4 ms 5120 KB Output is correct
33 Correct 4 ms 5120 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 3 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 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 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 5120 KB Output is correct
18 Correct 4 ms 5120 KB Output is correct
19 Correct 4 ms 5120 KB Output is correct
20 Correct 12 ms 5632 KB Output is correct
21 Correct 12 ms 5632 KB Output is correct
22 Correct 87 ms 10264 KB Output is correct
23 Correct 83 ms 10348 KB Output is correct
24 Correct 86 ms 10368 KB Output is correct
25 Correct 78 ms 10352 KB Output is correct
26 Correct 83 ms 10480 KB Output is correct
27 Correct 80 ms 10348 KB Output is correct
28 Correct 78 ms 10352 KB Output is correct
29 Correct 81 ms 10352 KB Output is correct
30 Correct 78 ms 10276 KB Output is correct
31 Correct 87 ms 10372 KB Output is correct
32 Correct 79 ms 10348 KB Output is correct
33 Correct 77 ms 10352 KB Output is correct
34 Correct 79 ms 10348 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 4 ms 4992 KB Output is correct
37 Correct 83 ms 10352 KB Output is correct
38 Correct 79 ms 10352 KB Output is correct
39 Correct 80 ms 10476 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 4 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 126 ms 15608 KB Output is correct
6 Correct 101 ms 10872 KB Output is correct
7 Correct 122 ms 15736 KB Output is correct
8 Correct 88 ms 10368 KB Output is correct
9 Correct 138 ms 15608 KB Output is correct
10 Correct 119 ms 12676 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 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 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 5 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 5120 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 5120 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 5120 KB Output is correct
32 Correct 4 ms 5120 KB Output is correct
33 Correct 4 ms 5120 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 5120 KB Output is correct
40 Correct 4 ms 5120 KB Output is correct
41 Correct 6 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 6 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 5 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 5 ms 5120 KB Output is correct
51 Correct 5 ms 5120 KB Output is correct
52 Correct 5 ms 5120 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 4992 KB Output is correct
12 Correct 4 ms 4992 KB Output is correct
13 Correct 4 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 5 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 5120 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 5120 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 5120 KB Output is correct
32 Correct 4 ms 5120 KB Output is correct
33 Correct 4 ms 5120 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 3 ms 4992 KB Output is correct
42 Correct 4 ms 4992 KB Output is correct
43 Correct 4 ms 4992 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 4 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 4992 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct
53 Correct 4 ms 5120 KB Output is correct
54 Correct 12 ms 5632 KB Output is correct
55 Correct 12 ms 5632 KB Output is correct
56 Correct 87 ms 10264 KB Output is correct
57 Correct 83 ms 10348 KB Output is correct
58 Correct 86 ms 10368 KB Output is correct
59 Correct 78 ms 10352 KB Output is correct
60 Correct 83 ms 10480 KB Output is correct
61 Correct 80 ms 10348 KB Output is correct
62 Correct 78 ms 10352 KB Output is correct
63 Correct 81 ms 10352 KB Output is correct
64 Correct 78 ms 10276 KB Output is correct
65 Correct 87 ms 10372 KB Output is correct
66 Correct 79 ms 10348 KB Output is correct
67 Correct 77 ms 10352 KB Output is correct
68 Correct 79 ms 10348 KB Output is correct
69 Correct 4 ms 4992 KB Output is correct
70 Correct 4 ms 4992 KB Output is correct
71 Correct 83 ms 10352 KB Output is correct
72 Correct 79 ms 10352 KB Output is correct
73 Correct 80 ms 10476 KB Output is correct
74 Correct 4 ms 4992 KB Output is correct
75 Correct 4 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 126 ms 15608 KB Output is correct
79 Correct 101 ms 10872 KB Output is correct
80 Correct 122 ms 15736 KB Output is correct
81 Correct 88 ms 10368 KB Output is correct
82 Correct 138 ms 15608 KB Output is correct
83 Correct 119 ms 12676 KB Output is correct
84 Correct 4 ms 4992 KB Output is correct
85 Correct 4 ms 4992 KB Output is correct
86 Correct 4 ms 5120 KB Output is correct
87 Correct 4 ms 5120 KB Output is correct
88 Correct 6 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 6 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 5 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 5 ms 5120 KB Output is correct
98 Correct 5 ms 5120 KB Output is correct
99 Correct 5 ms 5120 KB Output is correct
100 Correct 5 ms 5120 KB Output is correct
101 Correct 15 ms 6144 KB Output is correct
102 Correct 18 ms 5760 KB Output is correct
103 Correct 154 ms 15864 KB Output is correct
104 Correct 138 ms 15736 KB Output is correct
105 Correct 140 ms 13048 KB Output is correct
106 Correct 126 ms 15736 KB Output is correct
107 Correct 118 ms 11128 KB Output is correct
108 Correct 118 ms 11512 KB Output is correct
109 Correct 90 ms 10864 KB Output is correct
110 Correct 79 ms 10480 KB Output is correct
111 Correct 127 ms 15108 KB Output is correct
112 Correct 140 ms 14456 KB Output is correct
113 Correct 114 ms 11128 KB Output is correct
114 Correct 124 ms 15852 KB Output is correct
115 Correct 121 ms 15844 KB Output is correct