Probem C1 INCREASING SUBSEQUENCE (EASY)

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
const int mod=1e9+7;
#define fast_io ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define clr(a,x) memset(a,x,sizeof(a))
#define T int t;cin>>t; while(t--)
#define vll vector<int>
#define pb push_back
#define sz size
//convert integer to string
#define str to_string
int32_t main()
{
 int n,x=0,p=-1;
 cin>>n;
 vll a;
 string s="";
 for(int i=0;i<n;i++)
 {
   cin>>x;
   a.pb(x);
 }
 int i=0,j=n-1,k=0;
 for(int z=0;z<n;z++)
   {
    if(a[i]>p && a[j]>p)
    {
      int x=min(a[i],a[j]);
      if(x==a[i])
      {
        p=a[i];
        k++;
        s+='L';
        i++;
      }
      else
      {
        p=a[j];
        j--;
        k++;
        s+='R';
      }
    }
    else if(a[i]>p)
    {
      p=a[i];
      i++;
      k++;
      s+='L';
    }
    else if(a[j]>p)
    {
      p=a[j];
      j--;
      k++;
      s+='R';
    }
   }
 cout<<k<<endl<<s;
}