oj.uz

답안 #144031

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
144031 2019-08-15T17:43:12 Z davitmarg Arranging Shoes (IOI19_shoes) C++17
100 / 100
 194 ms 20356 KB 
/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <stack>
#include <cassert>
#include <iterator>
#include <bitset>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(),v.end()
using namespace std;

LL ans,ANS;
int n,id=1,used[200005];
vector<int> a,dr[200005],bc[200005];

void mergeSerge(int l,int r)
{
    if(l>=r)
        return;
    int m=(l+r)/2;

    mergeSerge(l,m);
    mergeSerge(m+1,r);
    vector<int> x,y;

    for(int i=l;i<=m;i++)
        x.PB(a[i]);
    for(int i=m+1;i<=r;i++)
        y.PB(a[i]);

    int d=l;
    int p=0,k=0;
    while(p<x.size())
    {
        while(k<y.size() && y[k]<x[p])
        {
            ans+=(LL)(x.size()-p);
            a[d++]=y[k++];
        }
        a[d++]=x[p++];
    }
    while(k<y.size())
        a[d++]=y[k++];

}

LL count_swaps(vector<int> A)
{
    a=A;
    n=A.size()/2;
    for(int i=0;i<a.size();i++)
    {
        if(a[i]>0)
            dr[a[i]].PB(i);
		else
            bc[-a[i]].PB(i);
    }
    for(int i=1;i<=n;i++)
	{
       reverse(all(dr[i]));
       reverse(all(bc[i]));
	}
    for(int i=0;i<a.size();i++)
        if(!used[i])
        {
			int val=abs(a[i]);
			if(a[i]<0)
			{
				used[i]=1;
				used[dr[val].back()]=1;
				a[i]=id++;
				a[dr[val].back()]=id++;
			}
			else
			{
				used[i]=1;
				used[bc[val].back()]=1;
				a[bc[val].back()]=id++;
				a[i]=id++;
			}
				dr[val].pop_back();
				bc[val].pop_back();
        }
    // for(int i=0;i<a.size();i++)
    // cout<<a[i]<<":";
    // cout<<endl;

    mergeSerge(0,2*n-1);
    return ans;
}

//#define death

#ifdef death

int main()
{
    int N;
    cin>>N;
    N*=2;
    vector<int> X;
    for(int i=0;i<N;i++)
    {
		int val=rand()%(N/2)+1;
        cin>>val;
        X.PB(val);
       // X.PB(-val);
    }
	//random_shuffle(all(X));
    cout<<count_swaps(X)<<endl;
	return 0;
}

#endif // death

/*



3
-2 2 2 -2 -2 2


*/

Compilation message

shoes.cpp: In function 'void mergeSerge(int, int)':
shoes.cpp:46:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(p<x.size())
           ~^~~~~~~~~
shoes.cpp:48:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(k<y.size() && y[k]<x[p])
               ~^~~~~~~~~
shoes.cpp:55:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(k<y.size())
           ~^~~~~~~~~
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:64:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<a.size();i++)
                 ~^~~~~~~~~
shoes.cpp:76:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<a.size();i++)
                 ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 12 ms 9720 KB Output is correct
21 Correct 13 ms 9720 KB Output is correct
22 Correct 12 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 10 ms 9720 KB Output is correct
25 Correct 13 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 10 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 13 ms 9720 KB Output is correct
32 Correct 13 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9696 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9592 KB Output is correct
5 Correct 12 ms 9720 KB Output is correct
6 Correct 13 ms 9720 KB Output is correct
7 Correct 12 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 11 ms 9720 KB Output is correct
11 Correct 12 ms 9720 KB Output is correct
12 Correct 13 ms 9724 KB Output is correct
13 Correct 13 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 13 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 13 ms 9720 KB Output is correct
20 Correct 23 ms 10360 KB Output is correct
21 Correct 20 ms 10232 KB Output is correct
22 Correct 107 ms 14832 KB Output is correct
23 Correct 100 ms 14820 KB Output is correct
24 Correct 118 ms 14836 KB Output is correct
25 Correct 99 ms 14800 KB Output is correct
26 Correct 107 ms 14876 KB Output is correct
27 Correct 112 ms 14760 KB Output is correct
28 Correct 100 ms 14904 KB Output is correct
29 Correct 100 ms 14804 KB Output is correct
30 Correct 99 ms 14800 KB Output is correct
31 Correct 107 ms 14756 KB Output is correct
32 Correct 99 ms 14792 KB Output is correct
33 Correct 98 ms 14800 KB Output is correct
34 Correct 99 ms 14788 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 99 ms 14800 KB Output is correct
38 Correct 99 ms 14732 KB Output is correct
39 Correct 103 ms 14928 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 136 ms 20328 KB Output is correct
6 Correct 123 ms 15484 KB Output is correct
7 Correct 138 ms 20328 KB Output is correct
8 Correct 103 ms 14812 KB Output is correct
9 Correct 136 ms 20268 KB Output is correct
10 Correct 139 ms 17360 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 12 ms 9720 KB Output is correct
21 Correct 13 ms 9720 KB Output is correct
22 Correct 12 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 10 ms 9720 KB Output is correct
25 Correct 13 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 10 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 13 ms 9720 KB Output is correct
32 Correct 13 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9696 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 13 ms 9720 KB Output is correct
38 Correct 10 ms 9720 KB Output is correct
39 Correct 12 ms 9720 KB Output is correct
40 Correct 11 ms 9720 KB Output is correct
41 Correct 11 ms 9848 KB Output is correct
42 Correct 11 ms 9848 KB Output is correct
43 Correct 11 ms 9848 KB Output is correct
44 Correct 11 ms 9720 KB Output is correct
45 Correct 11 ms 9720 KB Output is correct
46 Correct 11 ms 9848 KB Output is correct
47 Correct 11 ms 9848 KB Output is correct
48 Correct 11 ms 9848 KB Output is correct
49 Correct 12 ms 9848 KB Output is correct
50 Correct 11 ms 9720 KB Output is correct
51 Correct 12 ms 9720 KB Output is correct
52 Correct 12 ms 9848 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 12 ms 9720 KB Output is correct
21 Correct 13 ms 9720 KB Output is correct
22 Correct 12 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 10 ms 9720 KB Output is correct
25 Correct 13 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 10 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 13 ms 9720 KB Output is correct
32 Correct 13 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9696 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 10 ms 9720 KB Output is correct
38 Correct 10 ms 9592 KB Output is correct
39 Correct 12 ms 9720 KB Output is correct
40 Correct 13 ms 9720 KB Output is correct
41 Correct 12 ms 9720 KB Output is correct
42 Correct 10 ms 9720 KB Output is correct
43 Correct 10 ms 9720 KB Output is correct
44 Correct 11 ms 9720 KB Output is correct
45 Correct 12 ms 9720 KB Output is correct
46 Correct 13 ms 9724 KB Output is correct
47 Correct 13 ms 9720 KB Output is correct
48 Correct 10 ms 9720 KB Output is correct
49 Correct 13 ms 9720 KB Output is correct
50 Correct 10 ms 9720 KB Output is correct
51 Correct 11 ms 9720 KB Output is correct
52 Correct 11 ms 9720 KB Output is correct
53 Correct 13 ms 9720 KB Output is correct
54 Correct 23 ms 10360 KB Output is correct
55 Correct 20 ms 10232 KB Output is correct
56 Correct 107 ms 14832 KB Output is correct
57 Correct 100 ms 14820 KB Output is correct
58 Correct 118 ms 14836 KB Output is correct
59 Correct 99 ms 14800 KB Output is correct
60 Correct 107 ms 14876 KB Output is correct
61 Correct 112 ms 14760 KB Output is correct
62 Correct 100 ms 14904 KB Output is correct
63 Correct 100 ms 14804 KB Output is correct
64 Correct 99 ms 14800 KB Output is correct
65 Correct 107 ms 14756 KB Output is correct
66 Correct 99 ms 14792 KB Output is correct
67 Correct 98 ms 14800 KB Output is correct
68 Correct 99 ms 14788 KB Output is correct
69 Correct 10 ms 9720 KB Output is correct
70 Correct 10 ms 9720 KB Output is correct
71 Correct 99 ms 14800 KB Output is correct
72 Correct 99 ms 14732 KB Output is correct
73 Correct 103 ms 14928 KB Output is correct
74 Correct 10 ms 9720 KB Output is correct
75 Correct 10 ms 9720 KB Output is correct
76 Correct 10 ms 9720 KB Output is correct
77 Correct 10 ms 9720 KB Output is correct
78 Correct 136 ms 20328 KB Output is correct
79 Correct 123 ms 15484 KB Output is correct
80 Correct 138 ms 20328 KB Output is correct
81 Correct 103 ms 14812 KB Output is correct
82 Correct 136 ms 20268 KB Output is correct
83 Correct 139 ms 17360 KB Output is correct
84 Correct 13 ms 9720 KB Output is correct
85 Correct 10 ms 9720 KB Output is correct
86 Correct 12 ms 9720 KB Output is correct
87 Correct 11 ms 9720 KB Output is correct
88 Correct 11 ms 9848 KB Output is correct
89 Correct 11 ms 9848 KB Output is correct
90 Correct 11 ms 9848 KB Output is correct
91 Correct 11 ms 9720 KB Output is correct
92 Correct 11 ms 9720 KB Output is correct
93 Correct 11 ms 9848 KB Output is correct
94 Correct 11 ms 9848 KB Output is correct
95 Correct 11 ms 9848 KB Output is correct
96 Correct 12 ms 9848 KB Output is correct
97 Correct 11 ms 9720 KB Output is correct
98 Correct 12 ms 9720 KB Output is correct
99 Correct 12 ms 9848 KB Output is correct
100 Correct 12 ms 9848 KB Output is correct
101 Correct 23 ms 10744 KB Output is correct
102 Correct 23 ms 10332 KB Output is correct
103 Correct 163 ms 20352 KB Output is correct
104 Correct 142 ms 20232 KB Output is correct
105 Correct 194 ms 17640 KB Output is correct
106 Correct 143 ms 20356 KB Output is correct
107 Correct 140 ms 15568 KB Output is correct
108 Correct 153 ms 15924 KB Output is correct
109 Correct 108 ms 15140 KB Output is correct
110 Correct 105 ms 14772 KB Output is correct
111 Correct 138 ms 19584 KB Output is correct
112 Correct 158 ms 18940 KB Output is correct
113 Correct 136 ms 15612 KB Output is correct
114 Correct 136 ms 20296 KB Output is correct
115 Correct 136 ms 20232 KB Output is correct