제출 #557125

#제출 시각아이디문제언어결과실행 시간메모리
557125donaldchuityMountains (NOI20_mountains)C++17
0 / 100
2095 ms1364 KiB
#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;
}
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