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Submission #439669

# Submission time Handle Problem Language Result Execution time Memory
439669 2021-06-30T13:51:52 Z MohamedAhmed04 Discharging (NOI20_discharging) C++14
0 / 100
 130 ms 21628 KB 
#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 = 1 ; i <= n ; ++i)
	{
		while(s.size() && arr[i] >= s.top())
			s.pop() ;
		if(s.size())
			dp[i] = dp[s.top()] + 1ll * arr[i] * (i - s.top()) ;
		else
			dp[i] = 1ll * arr[i] * i ;
		s.push(i) ;
	}
	long long ans = 4e18 ;
	while(s.size())
	{
		ans = min(ans , dp[s.top()] + 1ll * arr[s.top()] * (n - s.top())) ;
		s.pop() ;
	}
	return cout<<ans<<"\n" , 0 ;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 130 ms 21628 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -