Submission #4046290

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Source Code Expand

#include<bits/stdc++.h>

#define INF 1e9
#define llINF 1e18
#define MOD 1000000007
#define pb push_back
#define mp make_pair 
#define F first
#define S second
#define ll long long
#define ALL(a) (a).begin(),(a).end()
#define Yes(hoge) cout<<((hoge)?"Yes":"No")<<endl;
#define YES(hoge) cout<<((hoge)?"YES":"NO")<<endl;
using namespace std;
struct Grid{int x,y,t;};
struct Edge{int to,cost;};
struct Graph{vector<vector<Edge>>E;int V;
  const ll Inf = llINF;const int MAX_V=1010;vector<ll>d;
  Graph(int n):E(n){d.resize(MAX_V);E.resize(n);V=n;}
  void init(){for(int i=0;i<MAX_V;i++)d[i]=Inf;}
  void add_edge(int from,int to,int cost){E[from-1].pb({to-1,cost});}
};
int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  ll n,k;cin>>n>>k;
  vector<ll>num(n);
  for(int i=0;i<n;i++)cin>>num[i];
  if(n/2<k){
    cout<<0<<endl;
  }else{
    ll ans=0;
    for(int i=0;i<n;i++)if(num[i]>0)ans+=num[i];
    cout<<ans<<endl;
  }
  return 0;
}

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