/* [Author: Nguyen Ngoc Hung] - From THPT Ngo Gia Tu with Love */
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <locale>
#include <map>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <unordered_set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <utility>
#include <valarray>
#include <vector>
#include <cstring>
#include <unordered_map>
#include <cmath>
#include <array>
#include <cassert>
#include <random>
#include <chrono>
using namespace std;
#define __nnhzzz__ signed main()
#define BIT(i,j) (((i)>>(j))&1LL)
#define MASK(i) (1LL<<(i))
#define ALL(x) (x).begin(),(x).end()
#define SZ(x) (int)(x).size()
#define fi first
#define se second
#define ll long long
#define ld long double
#define vi vector<int>
#define vvi vector<vi>
#define vvvi vector<vvi>
#define pii pair<int,int>
#define vpii vector<pii>
#define vvpii vector<vpii>
#define REPDIS(i,be,en,j) for(int i = (be); i<=(en); i+=j)
#define REPD(i,be,en) for(int i = (be); i>=(en); i--)
#define REP(i,be,en) for(int i = (be); i<=(en); i++)
#define endl "\n"
#define MP make_pair
#define int ll
//-----------------------------------------------------------------------------------------------//
int readInt(){
char c;
do{ c = getchar(); }while(c!='-' && !isdigit(c));
bool neg = (c=='-');
int res = neg?0:c-'0';
while(isdigit(c=getchar())) res = (res<<3)+(res<<1)+(c-'0');
return neg?-res:res;
}
//------------------------------------------------------------------------------------------------//
const ll LINF = 1e18;
const int INF = 1e9;
const int LOG = 20;
const int MAXN = 5e5+7;
const int N = 1e2+3;
const int MOD = 1e9+7;
const int BASE = 1e5;
const ld EPS = 1e-9;
const ld PI = acos(-1);
const int OFFSET = 1e3;
//------------------------------------------------------------------------------------------------//
template<typename T1, typename T2> bool mini(T1 &a, T2 b){if(a>b){a=b;return true;}return false;}
template<typename T1, typename T2> bool maxi(T1 &a, T2 b){if(a<b){a=b;return true;}return false;}
template<typename T> T gcd(T a, T b) { while(b) { a %= b; swap(a,b); } return a; }
template<typename T> T lcm(T a, T b) { return a/gcd(a,b)*b; }
//------------------------------------------------------------------------------------------------//
/*
----------------------------------------------------------------
END OF TEMPLATE
----------------------------------------------------------------
Nguyen Ngoc Hung - nnhzzz
Training for VOI24 gold medal
----------------------------------------------------------------
*/
int a[MAXN],b[MAXN];
int n,k;
namespace sub1{
int c[MAXN];
int calc(int x){
int res = 0;
REP(i,1,n) res += abs(a[i]-(b[i]+x));
return res;
}
void solve(){
REP(i,1,n) c[i] = a[i]-b[i];
sort(c+1,c+n+1);
int res = min(calc(c[n/2]),calc(c[(n+1)/2]));
cout << res;
}
}
namespace sub2{
int vis[MAXN];
pii c[MAXN];
int calc(int x){
int res = 0;
REP(i,1,n){
if(vis[i]) continue;
res += abs(a[i]-(b[i]+x));
}
return res;
}
void solve(){
REP(i,1,n) c[i].fi = a[i]-b[i],c[i].se = i;
sort(c+1,c+n+1);
int l = 1,r = n;
while(k--){
if(abs(c[l].fi)>=abs(c[r].fi)) vis[c[l++].se] = 1;
else vis[c[r--].se] = 1;
}
vi tmp; tmp.push_back(0);
REP(i,l,r) tmp.push_back(c[i].fi);
int m = SZ(tmp)-1;
int res = min({calc(tmp[(m-1)/2]),calc(tmp[m/2]),calc(tmp[(m+1)/2])});
cout << res;
}
}
void solve(){
cin >> n >> k;
REP(i,1,n) cin >> a[i];
REP(i,1,n) cin >> b[i];
if(k==0){
sub1::solve();
return ;
}
sub2::solve();
}
__nnhzzz__{
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#define task "test"
if(fopen(task".inp","r")){
freopen(task".inp","r",stdin);
freopen(task".out","w",stdout);
}
#define task1 "nnhzzz"
if(fopen(task1".inp","r")){
freopen(task1".inp","r",stdin);
freopen(task1".out","w",stdout);
}
int test = 1;
while(test--){
solve();
}
cerr << "\nTime elapsed: " << 1000*clock()/CLOCKS_PER_SEC << "ms\n";
return 0;
}
/** /\_/\
* (= ._.)
* / >TL \>AC
**/v
Compilation message
simfonija.cpp:187:4: error: 'v' does not name a type
187 | **/v
| ^
simfonija.cpp: In function 'int main()':
simfonija.cpp:166:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
166 | freopen(task".inp","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
simfonija.cpp:167:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
167 | freopen(task".out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
simfonija.cpp:171:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
171 | freopen(task1".inp","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
simfonija.cpp:172:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
172 | freopen(task1".out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
