Submission #927460

#	Time	Username	Problem	Language	Result	Execution time	Memory
927460		OAleksa	Global Warming (CEOI18_glo)	C++14	28 / 100	2048 ms	10120 KiB

glo

#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define int long long
const int N = 2e5 + 69;
int n, a[N], x, dp[N];
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int tt = 1;
  //cin >> tt;
  while (tt--) {
	  cin >> n >> x;
	  for (int i = 1;i <= n;i++)
	  	cin >> a[i];
	  int ans = 1;
	  auto Solve = [&](vector<int> a) {
	  	int r = 0;
	  	vector<int> dp(n, 1e9);
	  	for (int i = 0;i < n;i++) {
	  		auto u = lower_bound(dp.begin(), dp.end(), a[i]) - dp.begin();
	  		if (dp[u] == 1e9) 
	  			r++;
	  		dp[u] = a[i];
	  	}
	  	return r;
	  };
	  for (int i = 1;i <= n;i++) {
	  	vector<int> b;
	  	for (int j = 1;j <= n;j++)
	  		b.push_back(a[j]);
	  	for (int j = 1;j <= i;j++)
	  		b[j - 1] -= x;
	  	ans = max(ans, Solve(b));
	  }
	  cout << ans << '\n';
  }
  return 0;
}

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