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Submission #250623

# Submission time Handle Problem Language Result Execution time Memory
250623 2020-07-18T14:35:10 Z dvdg6566 Simfonija (COCI19_simfonija) C++14
55 / 110
 59 ms 8816 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> pi;
typedef vector<pi> vpi;
typedef double ld;
#define pb emplace_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define ALL(x) x.begin(), x.end() 
#define SZ(x) (ll)x.size()
#define f first
#define s second
const ll MAXN=100001;
const ll MAXK=1000001;
const ll INF = 1e13;
const ll MOD = 1e9+7;

vi V;
ll T;
ll A[MAXN];
ll B[MAXN];
ll N,K;
multiset<int> lft;
multiset<int> rgt;


int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>N>>K;
	for(int i=0;i<N;++i){
		cin>>A[i];
	}
	for(int i=0;i<N;++i){
		cin>>B[i];
		V.pb(B[i]-A[i]);
	}
	ll res=0;
	ll ans=INF;
	sort(ALL(V));
	int cutoff=V[(N-K)/2];

	for(int i=0;i<N-K;++i){
		if(V[i]<=cutoff){
			lft.insert(V[i]);
			res+=cutoff-V[i];
		}
		else {
			rgt.insert(V[i]);
			res+=V[i]-cutoff;
		}
	}
	ans=min(ans,res);
	for(int i=0;i<K;++i){
		rgt.insert(V[i+N-K]);
		lft.erase(lft.find(V[i]));
		res+=abs(V[i+N-K]-cutoff);
		res+=abs(V[i]-cutoff);
		// cerr<<"Ers "<<i+N-K<<'\n';
		// cerr<<"Ins "<<i<<'\n';
		while(SZ(lft) < SZ(rgt)){
			ll newct=*rgt.begin();
			ll delta=newct-cutoff;
			res+=delta*(-SZ(rgt)+SZ(lft));
			while(SZ(rgt)&&*rgt.begin()==newct){
				lft.insert(newct);
				rgt.erase(rgt.begin());
			}
		}
		ans=min(ans,res);
	}
	cout<<ans;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 7404 KB Output is correct
2 Correct 53 ms 7540 KB Output is correct
3 Correct 46 ms 7408 KB Output is correct

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 7404 KB Output is correct
2 Correct 51 ms 7408 KB Output is correct
3 Correct 45 ms 7408 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 7408 KB Output is correct
2 Correct 51 ms 7404 KB Output is correct
3 Correct 49 ms 7408 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 44 ms 4088 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 6132 KB Output is correct
2 Incorrect 58 ms 4852 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 2852 KB Output is correct
2 Incorrect 55 ms 7280 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 57 ms 4592 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 58 ms 5388 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 6000 KB Output is correct
2 Correct 49 ms 8816 KB Output is correct
3 Correct 59 ms 7664 KB Output is correct