Submission #1164707

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164707		hashimali	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	17 ms	5052 KiB

triusis

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define endl '\n'
#define ld long double
#define pb push_back
#define pf push_front
#define mod 998244353
#define se second
#define fi first
#define all(ls) (ls).begin(),(ls).end()
#define int long long
using namespace std;
using namespace __gnu_pbds;
template<typename type>using ordered_set=tree<type,null_type,less<type>,rb_tree_tag,tree_order_statistics_node_update>;
template<typename type>using ordered_multiset=tree<type,null_type,less_equal<type>,rb_tree_tag,tree_order_statistics_node_update>;
int lengthOfLIS(vector<int>& arr)
{

    int n = arr.size();
    vector<int> ans;
    ans.push_back(arr[0]);

    for (int i = 1; i < n; i++) {
        if (arr[i] > ans.back()) {
            ans.push_back(arr[i]);
        }
        else {

            int low = upper_bound(ans.begin(), ans.end(),
                                  arr[i])
                      - ans.begin();
            if(low==ans.size())
                ans.pb(arr[i]);
            else
                ans[low] = arr[i];
        }
    }

    return ans.size();
}
void solve(){
    int n,m;
    cin>>n>>m;
    vector<int>ls;
    for(int i=1;i<=n;i++){
        int e;
        cin>>e;
        if(i*m>=e){
            // cout<<(i*m)-e<<" ";
            ls.pb((i*m)-e);
        }
    }
    if(ls.size()==0){
        cout<<n<<endl;
        return;
    }
    cout<<n-lengthOfLIS(ls)<<endl;
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t=1;
    // cin>>t;
    for(int i=1;i<=t;i++){
        // cout<<"Scenario #"<<i<<":"<<" ";
        solve();
    }
}

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37