Submission #785396

#	Time	Username	Problem	Language	Result	Execution time	Memory
785396		devariaota	Global Warming (CEOI18_glo)	C++17	38 / 100	2065 ms	3044 KiB

glo

#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main() {
  ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  int n, x; cin >> n >> x;
  vector<int> a(n); for(int &p : a) cin >> p;
  vector<int> dp; int ans=1;
  if(x==0) {
    for(int p : a) {
      auto it=lower_bound(dp.begin(), dp.end(), p);
      if(it==dp.end()) dp.push_back(p);
      else *it=p;
    }
    ans=dp.size();
  } else {
    for(int i=0; i<n; i++) {
        dp.clear();
        vector<int> temp=a;
        for(int k=i; k<n; k++) temp[k]+=x;
        for(int p : temp) {
          auto it=lower_bound(dp.begin(), dp.end(), p);
          if(it==dp.end()) dp.push_back(p);
          else *it=p;    
          }
        ans=max(ans, (int)dp.size());
    }
  }
    cout << ans << '\n';   
    return 0;
}   

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 13 / 13
• Subtask 4: 10 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25