Submission #557125

#	Time	Username	Problem	Language	Result	Execution time	Memory
557125		donaldchuity	Mountains (NOI20_mountains)	C++17	0 / 100	2095 ms	1364 KiB

Mountains

#include<bits/stdc++.h>
using namespace std;
int main() {
  int n; cin >> n;
  int h[n]; 
  int l = 0;
  for (int i = 0; i < n; i++) {
  	cin >> h[i];
  	if (i >= 1 and h[i] < h[i-1]) l++;
  }
  if (l == 0) cout << "0\n";
  else {
  	int count = 0;
	  for (int i = 0; i < n; i++) {
	  	for (int j = i+1; j < n; j++) {
	  		for (int k = j+1; k < n; k++) {
	  			if (h[i] < h[j] and h[j] > h[k]) count++;
			  }
		  }
	  }
	  cout << count << "\n";
  }
  return 0;
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 9
• Subtask 4: 0 / 36
• Subtask 5: 0 / 28
• Subtask 6: 0 / 9
• Subtask 7: 0 / 12