Submission #439673

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
439673	2021-06-30 14:04:32	MohamedAhmed04	Discharging (NOI20_discharging)	C++17	11 / 100	166 ms	12468 KiB

Discharging

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#include <bits/stdc++.h>
using namespace std ;
const int MAX = 1e6 + 10 ;
int arr[MAX] ;
int n ;
long long dp[MAX] ; 
int main()
{
  ios_base::sync_with_stdio(0) ;
  cin.tie(0) ;
  cin>>n ;
  for(int i = 1 ; i <= n ; ++i)
    cin>>arr[i] ;
  stack<int>s ;
  for(int i = n ; i >= 1 ; --i)
  {
    while(s.size() && arr[i] >= arr[s.top()])
      s.pop() ;
    if(s.size())
      dp[i] = dp[s.top()] ;
    dp[i] += 1ll * arr[i] * (n-i+1ll) ;
    s.push(i) ;
  }
  long long ans = 4e18 ;
  while(s.size())
 
 
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