Why my answer is coming wrong

#1

int get(int curr,int n,int x,int y,int z){
if(curr==n)
return 0;
if(curr>n)
return (curr-n)z;
if(dp[curr]!=-1)
return dp[curr];
int ans=INT_MAX;
ans=min(ans,x+get(2curr,n,x,y,z));
ans=min(ans,y+get(curr+1,n,x,y,z));
return dp[curr]=ans;

}

#2

You can refer to this code: https://ide.codingblocks.com/s/574890

#3

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