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Rofyda_Elghadban1

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Sep 18th, 2023
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C++ 1.94 KB | None | 0 0
  1.  #include <bits/stdc++.h>
  2.  
  3.  #define ll long long
  4.  #define ull unsigned long long
  5.  #define pi 3.141592654
  6.  #define NUM 1e18
  7.  #define Mod  1'000'000'007
  8.  #define fixed(n) fixed<<setprecision(n)
  9.  #define cin(v) for(auto &i:v) cin >> i ;
  10.  #define cout(v) for(auto &i:v) cout << i  <<" ";
  11.  #define vowel(x) (x=='e'||x=='a'||x=='i'||x=='o'||x=='u')
  12.  #define small(x) (x>=97&&x<=122)
  13.  #define capital(x) (x>=65&&x<=90)
  14.  #define Tolower(s) transform(s.begin(),s.end(),s.begin(),::tolower);
  15.  #define Toupper(s) transform(s.begin(),s.end(),s.begin(),::toupper);
  16.  #define all(v) ((v).begin()), ((v).end())
  17.  #define allr(v) ((v).rbegin()), ((v).rend())
  18.  #define updmax(a,b) a=max(a,b)
  19.  #define updmin(a,b) a=min(a,b)
  20.  #define ceil(a,b) ((a/b)+(a%b?1:0))
  21.  /* asc -> 1 2 3 ,des -> 3 2 1 */
  22.  
  23.  /***********************************************************************************/
  24.  
  25.  using namespace std;
  26.  
  27.  void Rofyda_Elghadban(){
  28.   #ifndef ONLINE_JUDGE  
  29.     freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
  30.    #endif
  31.     ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
  32.  }
  33.  
  34.  
  35.  void solve(){
  36.   int n,k;
  37.   cin>>n>>k;
  38.   vector<int>v(n+1),t(n+1),v2;
  39.   for(int i=1;i<n+1;i++){
  40.     cin>>v[i];
  41.   }
  42.   for(int i=1;i<n+1;i++){
  43.     cin>>t[i];
  44.   }
  45.   ll prefix1[100001]{};
  46.   for(int i=1;i<n+1;i++){
  47.     prefix1[i]=v[i]+prefix1[i-1];
  48.   }
  49.   ll l=1,r=l+k-1,maxi=INT_MIN,idx1=0,idx2=0;
  50.   for(int i=1;i<n+1;i++){
  51.     if(maxi<=prefix1[r]-prefix1[l-1]){
  52.       maxi=max(maxi,prefix1[r]-prefix1[l-1]);
  53.       idx1=l;
  54.       idx2=r;
  55.     }
  56.     if(r<n){
  57.       l++;
  58.       r++;
  59.     }
  60.   }
  61.   for(int i=1;i<idx1;i++){
  62.     if(t[i]==1){
  63.       maxi+=v[i];
  64.     }
  65.   }
  66.   for(int i=idx2+1;i<n+1;i++){
  67.     if(t[i]==1){
  68.       maxi+=v[i];
  69.     }
  70.   }
  71.   cout<<maxi<<"\n";
  72.  }
  73.  
  74.  
  75.  int main(){
  76.  Rofyda_Elghadban();
  77.  //freopen("input.txt","r",stdin);
  78.  //freopen("output.txt","r",stdout);
  79.   solve();
  80.  
  81.  
  82.  return 0;
  83. }
  84.  
  85.  
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