fork download
copy 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define endl '\n'
  4. #define int long long
  5. const int MOD = pow(10,9)+7;
  6. const int MOD2 = 998244353;
  7. const int INF = LLONG_MAX/2;
  8.  
  9. int primes[1000000];
  10.  
  11. void seive(){
  12.     fill(primes, primes + 1000000, 1);
  13.     primes[0] = primes[1] = 0;
  14.     for(int i = 2 ; i*i < 1000000 ; i++){
  15.         if(primes[i]){
  16.             for(int j = i*i ; j < 1000000 ; j += i){
  17.                 primes[j] = 0;
  18.             }
  19.         }
  20.     }
  21. }
  22. int factorial(int n){
  23.     if(n==0){
  24.         return 1;
  25.     }
  26.     return (n*(factorial(n-1)))%MOD;
  27. }
  28. bool isPrime(int n){
  29.     if(n <= 1) return false;
  30.     for(int i = 2 ; i*i <= n ; i++){
  31.         if(n % i == 0) return false;
  32.     }
  33.     return true;
  34. }
  35.  
  36. int power(int a, int b){
  37.     if(b == 0) return 1;
  38.     a %= MOD;
  39.     int value = power(a, b / 2);
  40.     if(b % 2 == 0){
  41.         return (value * value) % MOD;
  42.     } else {
  43.         return ((value * value) % MOD * (a % MOD)) % MOD;
  44.     }
  45. }
  46.  
  47. int gcd(int a, int b){
  48.     if(a == 0) return b;
  49.     return gcd(b % a, a);
  50. }
  51. void dfs(int node , vector<int>A[] , int visited[] , int sum[] , int parent[] , int values[]){
  52.     visited[node] = 1;
  53.     for(auto node1 : A[node]){
  54.         if(!visited[node1]){
  55.             parent[node1] = node;
  56.             dfs(node1,A,visited,sum,parent,values);
  57.         }
  58.     }
  59.     int s = 0;
  60.     for(auto node1 : A[node]){
  61.         if(parent[node]!=node1){
  62.             s = max(s,sum[node1]);
  63.         }
  64.     }
  65.     sum[node] = values[node]+s;
  66. }
  67. int spf[1000001];
  68. void SPF(){
  69.    for(int i = 2 ; i<=1000000 ; i++){
  70.        spf[i] = i;
  71.    }
  72.    for(int i = 2 ; i<=sqrt(1000000) ; i++){
  73.         if(spf[i]==i){
  74.             for(int j = i*i ; j<=1000000 ; j+=i){
  75.                 if(spf[j]==j){
  76.                 spf[j] = i;
  77.                 }
  78.             }
  79.         }
  80.    }
  81. }
  82. void solve() {
  83.     int n,x,y;
  84.     cin>>n>>x>>y;
  85.     int A[n],B[n],C[n];
  86.     int sum = 0;
  87.     for(int i = 0 ; i<n ; i++){
  88.         cin>>A[i];
  89.         sum += A[i];
  90.     }
  91.     for(int i = 0 ; i<n ; i++){
  92.         cin>>B[i];
  93.     }
  94.     for(int i = 0 ; i<n ; i++){
  95.         C[i] = B[i]-A[i];
  96.     }
  97.     sort(C,C+n,greater<int>());
  98.     for(int i = 1 ; i<n ; i++){
  99.         C[i] = C[i] + C[i-1];
  100.     }
  101.     int maxi = INT_MIN;
  102.     for(int i = 0 ; i<=y ; i++){
  103.         if(i<=y && (n-i)<=x){
  104.             if(i==0){
  105.                 maxi = max(maxi,sum);
  106.             }
  107.             else{
  108.                 maxi = max(maxi,(sum+C[i-1]));
  109.             }
  110.         }
  111.     }
  112.     cout<<maxi<<endl;
  113. } 
  114. signed main(){
  115.     ios::sync_with_stdio(false); cin.tie(NULL);
  116.     SPF();
  117.     //int t;
  118.     //cin >> t;
  119.     //while(t--){
  120.         solve();
  121.     //}
  122.     return 0;
  123. }
Success #stdin #stdout 0.02s 12484KB
comments (?)
stdin
copy 
5 3 3
1 2 3 4 5
5 4 3 2 1
stdout
copy 
21
https://ideone.com/7O9v99
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!