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  1. #include <stdio.h>
  2. #include <bits/stdc++.h>
  3.  
  4. using namespace std;
  5.  
  6. class FrogJump1 {
  7. public:
  8.   int totalCost(vector<int>& heights, int n) {
  9.  
  10.     vector<int> cost(n);
  11.     cost[0] = 0;
  12.     cost[1] = abs(heights[0] - heights[1]);
  13.  
  14.     for(int i = 2; i < n; i++) {
  15.       cost[i] = min(cost[i-1] + abs(heights[i] - heights[i-1]), cost[i-2] + abs(heights[i] - heights[i-2]));
  16.     }
  17.     return cost[n-1];
  18.   }
  19. };
  20.  
  21. int main() {
  22.   int n;
  23.   vector<int> heights(n);
  24.   cin >> n;
  25.   for(int i = 0; i < n; ++i) {
  26.     cin >> heights[i];
  27.   }
  28.   FrogJump1 *obj = new FrogJump1();
  29.   cout << obj->totalCost(heights, n) << endl;
  30.   return 0;
  31. }
  32.  
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin 
4
10 30 40 20
stdout 
30
https://ideone.com/RndL31
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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