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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. using ll = long long;
  5.  
  6. void solve() {
  7.     int n, a, b;
  8.     cin >> n >> a >> b;
  9.  
  10.     vector<ll> x(n), y(n), w(n);
  11.  
  12.     for (int i = 0; i < n; i++) cin >> x[i];
  13.     for (int i = 0; i < n; i++) cin >> y[i];
  14.     for (int i = 0; i < n; i++) cin >> w[i];
  15.  
  16.     map<pair<ll, ll>, ll> mp;
  17.  
  18.     ll ans = 0;
  19.  
  20.     for (int i = 0; i < n; i++) {
  21.         for (int j = 0; j < n; j++) {
  22.             ll X = x[j] - a * x[i] + b * y[i];
  23.             ll Y = y[j] - b * x[i] - a * y[i];
  24.  
  25.             mp[{X, Y}] += w[i];
  26.             ans = max(ans, mp[{X, Y}]);
  27.         }
  28.     }
  29.  
  30.     cout << ans << '\n';
  31. }
  32.  
  33. int main() {
  34.     ios::sync_with_stdio(false);
  35.     cin.tie(nullptr);
  36.  
  37.     int t;
  38.     cin >> t;
  39.  
  40.     while (t--) {
  41.         solve();
  42.     }
  43.  
  44.     return 0;
  45. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/FWU7M3
language:
C++14 (gcc 8.3)
created:
13 hours ago
visibility:
public

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