Submission #558175

#	Time	Username	Problem	Language	Result	Execution time	Memory
558175		Cookie	Rabbit Carrot (LMIO19_triusis)	C++14	100 / 100	27 ms	5332 KiB

triusis

#include <bits/stdc++.h>
using namespace std;
#define LIFESUCKS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define ll long long
#define ld long double
#define ar array
#include<cstdio>
#define vt vector
#include<fstream>
ifstream fin("snakes.in");
ofstream fout("snakes.out");
#include<fstream>
#define pb push_back
#define dq deque
#define all(c) (c).begin(), (c).end()
//#define length(x) (int)(x).size()
#define fi first
#define se second
#define vt vector

int main()
{
   LIFESUCKS;
   ll n, m; cin >> n >> m;
   ll a[n];
   for(int i = 0; i < n; i++)cin >> a[i];
   ll dp[n];
   ll ans  =0;
   int cr = -1;
   for(int i = n - 1; i >= 0; i--){
       if(a[i] <= m * (i + 1)){
           
           cr = i;
           //cout << i << " ";
           //cout << cr << " ";
           dp[0] = a[i] - m * (i + 1);
           break;
       }
   }
   if(cr == -1){
        cout << n;
        return(0);
   }
   //cout << cr << " ";
   for(int i = cr - 1; i >= 0; i--){
       if(a[i] <= m * (i + 1)){
       ll curr = a[i] - m * (i + 1);
       ll id = upper_bound(dp, dp + ans + 1, curr) - dp;
       ans = max(ans, id);
       dp[id] = curr;
       }
       
   }
   cout << n - (ans + 1);
   return 0;
}

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