Submission #818172

#	Time	Username	Problem	Language	Result	Execution time	Memory
818172		trucmai	Financial Report (JOI21_financial)	C++17	48 / 100	4075 ms	4964 KiB

Main

#include <bits/stdc++.h>
using namespace std; 
#define ll long long 
const ll N = 3e5+5;
ll n,d,a[N],dp[N],mx[N];
//dp[i] = max dp[j] + 1 va (a[i] > a[j] && |i-j| <= D)
//wutdahell
signed main(){ 
  cin>>n>>d;
  for(ll i = 1;i <= n;++i) cin>>a[i]; 
  // deque<ll>dq;
  // for(ll i = 1;i <= n;++i){
  //   while(!dq.empty() && a[dq.back()] < a[i]) dq.pop_back(); 
  //   while(!dq.empty() && dq.front() + d <= i) dq.pop_front(); 
  //   dq.push_back(i); 
  //   if(i <= d) mx[i] = a[dq.front()];
  // }
  for(ll i = 1;i <= n;++i) dp[i] = 1; 
  for(ll i = n - 1;i >= 1;--i){
    ll pos = min(i+d,n);
    for(ll j = i + 1;j <= pos;++j){
      if(a[j] > a[i]) dp[i] = max(dp[i],dp[j] + 1);
      else pos = min(j + d,n);
    }
  }
  ll res = 0;
  for(ll i = 1;i <= n;++i) res = max(res,dp[i]);
  cout<<res;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 20 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35