Submission #1108917

#	Time	Username	Problem	Language	Result	Execution time	Memory
1108917		csibe_csavo	Global Warming (CEOI18_glo)	C++14	28 / 100	2067 ms	3136 KiB

glo

#include <algorithm>
#include <bits/stdc++.h>
using namespace std;
int n,d;
int lis(vector<int> &v)
{
	vector<int> s{v[1]};
	for(int i=2; i<=n; i++)
	{
		int ind=lower_bound(s.begin(),s.end(),v[i])-s.begin();
		if(ind>=s.size()) s.push_back(v[i]);
		else s[ind]=v[i];
	}
	int p=s.size();
	return p;
}
int main() {
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n>>d;
	vector<int> v(n+1);
	for(int i=1; i<=n; i++)
		cin>>v[i];
	int ans=lis(v);
	for(int i=1; i<n; i++)
	{
		v[i]-=d;
		ans=max(ans,lis(v));
	}
	cout<<ans<<"\n";
}

Compilation message (stderr)

glo.cpp: In function 'int lis(std::vector<int>&)':
glo.cpp:11:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |   if(ind>=s.size()) s.push_back(v[i]);
      |      ~~~^~~~~~~~~~

• 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