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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int long long
  4. #define dd double
  5. #define ld long double
  6. #define ull unsigned long long
  7. #define yes cout << "YES\n"
  8. #define no cout << "NO\n"
  9. #define el "\n"
  10. #define Arwa ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  11. #define fix(x) cout << fixed << setprecision(x)
  12. #define all(v) v.begin(),v.end()
  13. #define dpp(v,val) memset(v,val,sizeof(v))
  14. #define mod 1e9+7
  15. #define oo 1e9
  16. const int N = 1e5 + 5;
  17. int n,k;
  18. vector<int>taste,cal;
  19. int dp[101][N];
  20. int solve(int i,int t,int c) 
  21. {
  22.    if(i==n) 
  23.    {
  24.       if(c-t==0) return t;
  25.       return 0;
  26.    }
  27.    int &ret=dp[i][(c-t)+10000];
  28.    if(ret!=-1) return ret;
  29.    int tk=0,l=0;
  30.    tk=solve(i+1,t+taste[i],c+cal[i]*k);
  31.    l=solve(i+1,t,c);
  32.    return ret=max(tk,l);
  33. }
  34. void HereWeGoAgain()
  35. {
  36.   cin>>n>>k;
  37.   taste.resize(n); cal.resize(n);
  38.   for(int i=0;i<n;i++)
  39.   cin>>taste[i];
  40.   for(int i=0;i<n;i++)
  41.   cin>>cal[i];
  42.    dpp(dp,-1);
  43.   if(solve(0,0,0)==0)cout<<-1<<el;
  44.   else cout<<solve(0,0,0);
  45. }
  46. int32_t main() 
  47. {
  48.     Arwa
  49.     int t=1;
  50.     //cin>>t;
  51.     for(int i=1;i<=t;i++)
  52.     {
  53.     HereWeGoAgain();
  54.     }
  55.     return 0;
  56. }
  57.  
Success #stdin #stdout 0.02s 82424KB
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https://ideone.com/P2KdHN
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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