Submission #106265

#	Time	Username	Problem	Language	Result	Execution time	Memory
106265		hamzqq9	Simfonija (COCI19_simfonija)	C++14	110 / 110	69 ms	3832 KiB

simfonija

#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define umax(x,y) x=max(x,y)
#define umin(x,y) x=min(x,y)
#define ll long long 
#define ii pair<int,int>
#define iii pair<ii,int>
#define iiii pair<ii,ii>
#define sz(x) ((int) x.size())
#define orta ((bas+son)/2)
#define all(x) x.begin(),x.end()
#define pw(x) (1<<(x))
#define inf 100000009
#define MOD 998244353
#define N 100005
#define M 2500005
#define LOG 20
#define KOK 300
#define EPS 0.0000001
using namespace std;

int n,k;
int mn=inf,mx=-inf;
int a[N],b[N],ar[N];
ll pre[N];

ll get(int l,int r,int lastng,int cur) {

	umax(lastng,l);
	umin(lastng,n-r);

	ll pos=pre[n-r]-pre[lastng]+(ll)(n-r-lastng)*cur;
	ll neg=pre[lastng]-pre[l]+(ll)(lastng-l)*cur;

	return pos-neg;

}

int main() {

	scanf("%d %d",&n,&k);

	for(int i=1;i<=n;i++) {

		scanf("%d",&a[i]);

	}

	for(int i=1;i<=n;i++) {

		scanf("%d",&b[i]);

		umin(mn,b[i]-a[i]);
		umax(mx,b[i]-a[i]);

	}

	for(int i=1;i<=n;i++) {

		ar[i]=a[i]-b[i];

	}

	sort(ar+1,ar+1+n);

	for(int i=1;i<=n;i++) pre[i]=pre[i-1]+ar[i];

	int l=k,r=0,lastng=n;

	ll ans=(ll)inf*inf;

	for(int i=mn;i<=mx;i++) {

		while(lastng && ar[lastng]+i>=0) lastng--;
		while(l && abs(ar[l]+i)<abs(ar[n-r]+i)) l--,r++;

		umin(ans,get(l,r,lastng,i));

	}

	printf("%lld",ans);

}

Compilation message (stderr)

simfonija.cpp: In function 'int main()':
simfonija.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&k);
  ~~~~~^~~~~~~~~~~~~~~
simfonija.cpp:50:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~
simfonija.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&b[i]);
   ~~~~~^~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 11 / 11
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 11 / 11
• Subtask 9: 11 / 11
• Subtask 10: 11 / 11