-
Notifications
You must be signed in to change notification settings - Fork 0
/
C.cpp
81 lines (80 loc) · 1.68 KB
/
C.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
#include<bits/stdc++.h>
using namespace std;
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL)
int main()
{
fastio;
int n,x,i,ans=0,dif=INT_MAX,med,p;
cin>>n>>x;
if(n%2==0)
med=n/2-1;
else
med=n/2;
vector<int> ara;
for(i=0; i<n; i++)
{
cin>>p;
ara.push_back(p);
}
sort(ara.begin(),ara.end());
int idx=-1;
for(i=0; i<n; i++)
{
if(ara[i]==x)
{
idx=i;
if(i==med)
dif=0;
else if(i<med)
{
if(n%2==1)
dif=min(dif,2*(med-i)-1);
else
dif=min(dif,2*(med-i));
}
else
{
if(n%2==1)
dif=min(dif,2*(i-med));
else
dif=min(dif,2*(i-med)-1);
}
}
}
if(idx==-1)
{
ara.push_back(x);
dif=1;
n++;
if(n%2==0)
med=n/2-1;
else
med=n/2;
sort(ara.begin(),ara.end());
for(i=0; i<n; i++)
{
if(ara[i]==x)
{
idx=i;
if(i==med)
break;
else if(i<med)
{
if(n%2==1)
dif=2*(med-i);
else
dif=2*(med-i)+1;
}
else
{
if(n%2==1)
dif=2*(i-med)+1;
else
dif=2*(i-med);
}
}
}
}
cout<<dif<<"\n";
return 0;
}