Submission #525466

#	Time	Username	Problem	Language	Result	Execution time	Memory
525466		ammar2000	Global Warming (CEOI18_glo)	C++17	38 / 100	2082 ms	3048 KiB

glo

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define F first
#define S second
#define coy cout<<"YES\n"
#define con cout<<"NO\n"
#define co1 cout<<"-1\n"
#define sc(x) scanf("%lld",&x)
#define all(x) x.begin(),x.end()
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int SI=3e5+7;
ll INF=8e18+7;
int dx[] = {1 , -1 , 0 , 0};
int dy[] = {0 , 0 , 1 , -1};
int MOD=1e9+7;
ll n,x,a[SI];
vector < ll > LIS;
int main()
{
   ll ans=0;
   fast
   cin>>n>>x;
   for (int i=0;i<n;i++)
    cin>>a[i];
   for (int r=0;r<n;r++)
   {
     LIS.clear();
     a[r]-=x;
     for (int i=0;i<n;i++)
     {
        ll j=lower_bound(LIS.begin(),LIS.end(),a[i])-LIS.begin();
        if (j==LIS.size())
          LIS.pb(a[i]);
        else LIS[j]=a[i];
     }
   ans=max(ans,(ll)LIS.size());
   if (x==0)
    break;
   }
   cout <<ans<<"\n";
   // use scanf not cin
   return 0;
}

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:34:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         if (j==LIS.size())
      |             ~^~~~~~~~~~~~

• 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