Submission #773964

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Source Code Expand

#include <cstdio>
#include <iostream>
#include <vector>
#define mins(a,b) a = min(a,b)
using namespace std;
 
const int INF = 1001001001;
 
int main() {
  int n;
  cin >> n;
  vector<int> a(n+5);
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
  }
  vector<int> dp(n+5, INF);
  dp[0] = 0;
  for (int i = 0; i < n; ++i) {
    mins(dp[i+1], dp[i] + abs(a[i]-a[i+1]));
    mins(dp[i+2], dp[i] + abs(a[i]-a[i+2]));
  }
  cout << dp[n-1] << endl;
  return 0;
}

Submission Info

Judge Result