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Submission #439673

# Submission time Handle Problem Language Result Execution time Memory
439673 2021-06-30T14:04:32 Z MohamedAhmed04 Discharging (NOI20_discharging) C++17
11 / 100
 166 ms 12468 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 = 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())
	{
		ans = min(ans , dp[s.top()] + 1ll * arr[s.top()] * (s.top() - 1ll)) ;
		s.pop() ;
	}
	return cout<<ans<<"\n" , 0 ;
}

Subtask #1
0 / 9.0

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

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 12468 KB Output is correct
2 Correct 166 ms 12040 KB Output is correct
3 Correct 135 ms 11964 KB Output is correct
4 Correct 144 ms 12028 KB Output is correct
5 Correct 141 ms 12036 KB Output is correct
6 Correct 134 ms 12036 KB Output is correct
7 Correct 141 ms 12028 KB Output is correct
8 Correct 155 ms 12104 KB Output is correct
9 Correct 135 ms 11972 KB Output is correct
10 Correct 135 ms 12000 KB Output is correct

Subtask #5
0 / 14.0

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