Submission #1006432

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006432		adrielcp	Cloud Computing (CEOI18_clo)	C++17	54 / 100	263 ms	1624 KiB

clo

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define lld double
#define int ll
#define usaco(fname) freopen(#fname ".in","r",stdin);freopen(#fname ".out","w",stdout);
template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { os << '{'; string sep; for (const T &x : v) os << sep << x, sep = ", "; return os << '}'; }
// const ll INF = 1e18;
const int INF = 1e18;
const int mod = 1e9+7;
const lld PI = acos(-1.0);
int di[] = {1, -1, 0, 0, 1, 1, -1, -1};
int dj[] = {0, 0, 1, -1, 1, -1, 1, -1};
#define debug(x) cout << #x << ": " << x << endl;
#define add(a, b) a += b, a %= mod
#define mul(a, b) ((a % mod) * (b % mod)) % mod
#define all(x) x.begin(),x.end()

const int N = 1e5+1;
#define info tuple<int, int, int, int>
void solve() {
  int n;cin>>n;

  vector<info> a;
  for (int i = 0; i < n; i++) {
    int c,f,v;cin>>c>>f>>v;
    // value, freq, cost
    a.push_back({f, 0, c, v});
  }

  int m;cin>>m;
  for (int i = 0; i < m; i++) {
    int c,f,v;cin>>c>>f>>v;
    a.push_back({f, 1, c, v});
  }

  vector<int> dp(N, -INF);
  dp[0] = 0;
  sort(all(a));
  reverse(all(a));

  // cout << dp << endl;
  
  // for (auto [x, y, z, k] : a) cout << x << " " << y << " " << z << " " << k << endl;

  int ans = 0;
  for (int i = 0; i < n+m; i++) {
    auto [x, k, z, y] = a[i];
    if (k == 0) {
      // buy
      for (int j = N-1; j >= 0; j--) {
        if (j-z >= 0) dp[j] = max(dp[j], dp[j - z] - y);
      }
    } else {
      // sell
      for (int j = 0; j < N; j++) {
        if (j+z < N)dp[j] = max(dp[j], dp[j + z] + y);
      }
    } 
  }

  // cout << dp << endl;
  for (int i = 0; i < N; i++) ans = max(ans, dp[i]);
  cout << ans << endl;
}

int32_t main() {
  ios_base::sync_with_stdio(0);cin.tie(0);
  int t=1;
  while(t--) solve();

  return 0;
}

• Subtask 1: 18 / 18
• Subtask 2: 0 / 18
• Subtask 3: 18 / 18
• Subtask 4: 0 / 18
• Subtask 5: 18 / 18
• Subtask 6: 0 / 10