class Solution{
  public:
    int solve(int i,int arr[],vector<int>& dp)
    {
        //cout<<i<<"\n";
        if(i==1)
            return 0;
        if(dp[i]!=-1)
            return dp[i];
        int ans=1000001;
        for(int k=1;k<=arr[i-1] && i-k>=1;k++)
        {
            ans=min(ans,solve(i-k,arr,dp)+1);
        }
        return dp[i]=ans;
    }
    int minJumps(int arr[], int n){
        vector<int>dp(n+1,-1);
        reverse(arr,arr+n);
        int ans=solve(n,arr,dp);
        if(ans==1000001)
            ans=-1;
        return ans;
    }
};

I was solving the problem of minimum number of jumps to reach to the end of an array in geeksforgeeks Problem link

And this was my solution to it is right at the top

At worst , this should show TLE , but showing Segmentation fault . Can someone identify where am I wrong