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  1. #include<bits/stdc++.h>
  2. #define int long long
  3. using namespace std;
  4. int dp[100005], n, h[100005];
  5. const int MOD = 1e9 + 7;
  6. main() {
  7. 	cin >> n;
  8. 	for (int i = 1; i <= n; ++i) {
  9. 		cin >> h[i];
  10. 	}
  11. 	dp[1] = 0;	
  12. 	dp[2] = abs(h[2] - h[1]);
  13. 	for (int i = 3; i <= n; ++i) {
  14. 		dp[i] = min(dp[i - 1] + abs(h[i - 1] - h[i])
  15. 				  , dp[i - 2] + abs(h[i - 2] - h[i]));
  16. 	}
  17. 	cout << dp[n];
  18.  
  19. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/3p2C8e
language:
C++14 (gcc 8.3)
created:
12 hours ago
visibility:
public

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