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Submission #490432

# Submission time Handle Problem Language Result Execution time Memory
490432 2021-11-27T13:28:40 Z fun_day Global Warming (CEOI18_glo) C++14
0 / 100
 2000 ms 2908 KB 
#include <bits/stdc++.h>

using namespace std;

int get_first_lis(vector<int> v){
  int n = (int)v.size();
  if(n == 0) return 0;
  vector<int> lis;
  for(int i = 0 ; i < n ; i++){
    int val = v[i];
    auto q = lower_bound(lis.begin(),lis.end() , val);
    if(q == lis.end()){
      lis.emplace_back(val);
    }
    else{
      *q = val;
    }
  }
  int sz = (int)lis.size();
  return sz;
}

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n , x;
  cin >> n >> x;
  vector<int> v(n);
  for(int i = 0 ; i < n ; i++){
    cin >> v[i];
  }
  vector<int> f;
  int best = 0;
  for(int i = 0 ; i < n ; i++){
    f.emplace_back(v[i]);
    vector<int> s;
    for(int j = i + 1 ; j < n ; j++){
      if(v[j] + x > v[i]) s.emplace_back(v[j]);      
    }
    int a = get_first_lis(f);
    int b = get_first_lis(s);
    best = max(best , a + b);
  }
  cout << best << '\n';
  return 0; 
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2091 ms 2908 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2087 ms 1072 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2093 ms 1708 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -