Not able to find error in my code

#1

vhttps://ide.codingblocks.com/s/649534

#2

Hello @mohit26900,

I am listing down all the errors:

  1. Size of the array arr is w instead of n,

The second line contains W space-separated integers

  1. Size of the DP array should be w+1 instead of n.
  2. I think you misunderstood the array definition, array arr stores the cost of the ith packet and not the weight of the ith packet.
    Change this,

if(w-arr[i]>=0)
{
int sub=coins(n,w-arr[i],arr,dp);
ans=min(ans,sub+1);
}

to:

if(w-1-1>=0){
int sub=arr[i] + coins(n,w-i-1,arr,dp);
ans=min(ans,sub);
}

#3

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