fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int              long long int
  4. #define double           long double
  5. #define print(a)         for(auto x : a) cout << x << " "; cout << endl
  6.  
  7.  
  8. const int M = 1000000007;
  9. const int N = 3e5+9;
  10. const int INF = 2e9+1;
  11. const int LINF = 2000000000000000001;
  12.  
  13. inline int power(int a, int b, int mod=M) {
  14.     int x = 1;
  15.     a %= mod;
  16.     while (b) {
  17.         if (b & 1) x = (x * a) % mod; 
  18.         a = (a * a) % mod;
  19.         b >>= 1;
  20.     }
  21.     return x;
  22. }
  23.  
  24.  
  25. //_ ***************************** START Below *******************************
  26.  
  27.  
  28.  
  29.  
  30. vector<int> a;
  31.  
  32. int consistency(int n){
  33.  
  34. 	vector<int> dp(n);
  35.  
  36. 	dp[0] = 0;
  37. 	dp[1] = abs(a[0]-a[1]);
  38. 	dp[2] = dp[1] + abs(a[2]-a[1]);
  39.  
  40. 	for(int i=3; i<n; i++){
  41. 		dp[i] = min(dp[i-1] + abs(a[i]-a[i-1]),  dp[i-3] + abs(a[i] - a[i-3]));
  42. 	}
  43.  
  44.  
  45.  
  46. 	return dp[n-1];
  47. }
  48.  
  49.  
  50.  
  51.  
  52.  
  53.  
  54.  
  55.  
  56.  
  57.  
  58.  
  59.  
  60.  
  61.  
  62.  
  63. int practice(int n){
  64.  
  65.  
  66.     return 0;
  67. }
  68.  
  69.  
  70.  
  71.  
  72.  
  73. void solve() {
  74.  
  75.     int n;
  76.     cin>> n;
  77.  
  78.     a.resize(n);
  79.     for(int i=0; i<n; i++) cin >> a[i];
  80.  
  81.     cout << consistency(n) << endl;
  82.  
  83.  
  84. }
  85.  
  86.  
  87.  
  88.  
  89.  
  90. int32_t main() {
  91.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  92.  
  93.     int t = 1;
  94.     // cin >> t;
  95.     while (t--) {
  96.         solve();
  97.     }
  98.  
  99.     return 0;
  100. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
6
4 12 14 18 10 12
stdout
copy 
12
https://ideone.com/qZEn47
language:
C++14 (gcc 8.3)
created:
8 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!