Frog1 problem solving using db

I don’t know whats wrong in my code here it is
#include <bits/stdc++.h>
using namespace std;
int frogTPD(int n,vectorarr,int i){
if(i >= n) return 0;
int op1 = arr[i]-arr[i+1] + frogTPD(n,arr,i+1);
int op2 = arr[i]-arr[i+2] + frogTPD(n,arr,i+1);

return abs(min(op1,op2));

}
int main()
{
int n;
cin >> n;
vectorarr(n);
for(int i=0;i<n;i++){
cin >> arr[i];
}
cout<<frogTPD(n,arr,0);

return 0;

}

The issue in your code is that the function frogTPD is accessing elements out of bounds of the array arr , causing undefined behavior.

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