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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int              long long int
  4. #define double           long double
  5. #define print(a)         for(auto x : a) cout << x << " "; cout << endl
  6.  
  7.  
  8. const int M = 1000000007;
  9. const int N = 3e5+9;
  10. const int INF = 2e9+1;
  11. const int LINF = 2000000000000000001;
  12.  
  13. inline int power(int a, int b) {
  14.     int x = 1;
  15.     a %= M;
  16.     while (b) {
  17.         if (b & 1) x = (x * a) % M; 
  18.         a = (a * a) % M;
  19.         b >>= 1;
  20.     }
  21.     return x;
  22. }
  23.  
  24.  
  25. //_ ***************************** START Below *******************************
  26.  
  27.  
  28.  
  29.  
  30. vector<int> a;
  31. vector<int> b;
  32.  
  33. int consistency(int n, int x, int y){
  34.  
  35.     vector<int> dif(n);
  36.     int sumb = 0;
  37.     for(int i=0; i<n; i++){
  38.         dif[i] = a[i]-b[i];
  39.         sumb += b[i];
  40.     }
  41.  
  42.     sort(begin(dif), end(dif), greater<int>());
  43.  
  44.     vector<int> prefixDif(n+1);
  45.     for(int i=0; i<n; i++){
  46.         prefixDif[i+1] = prefixDif[i] + dif[i];
  47.     }
  48.  
  49.     int maxSum = 0;
  50.     for(int i=1; i<=x; i++){
  51.         int j = n-i;
  52.         if(j>y) continue;
  53.         int sum = sumb + prefixDif[i];
  54.         maxSum = max(maxSum, sum);
  55.     }
  56.  
  57.     return maxSum;    
  58. }
  59.  
  60.  
  61.  
  62.  
  63.  
  64.  
  65.  
  66.  
  67.  
  68.  
  69.  
  70.  
  71.  
  72.  
  73.  
  74. int practice(int n, int x, int y){
  75.  
  76.  
  77.     return 0;
  78. }
  79.  
  80.  
  81.  
  82.  
  83.  
  84. void solve() {
  85.  
  86.     int n, x, y;
  87.     cin>> n >> x >> y;
  88.  
  89.     a.resize(n);
  90.     b.resize(n);
  91.     for(int i=0; i<n; i++) cin >> a[i];
  92.     for(int i=0; i<n; i++) cin >> b[i];
  93.  
  94.     cout << consistency(n, x, y) << endl;
  95.  
  96.  
  97. }
  98.  
  99.  
  100.  
  101.  
  102.  
  103. int32_t main() {
  104.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  105.  
  106.     int t = 1;
  107.     // cin >> t;
  108.     while (t--) {
  109.         solve();
  110.     }
  111.  
  112.     return 0;
  113. }
Success #stdin #stdout 0s 5328KB
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https://ideone.com/uR69e9
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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