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  3. Xorry Queries
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Xorry Queries

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8 Discussions

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  • kamanashisroy
     + 0 comments

    The definition of the problem is wrong.

    Definition says,

    sum(l...r) = p(l) + p(l+1) + ... + p(r)

    But the implementation works when,

    sumfunc(l...r) = p(l) + p(l+1) + ... + p(r-1)

    Here the interval [l,r) is left-closed,right-opened.

  • 016_Ankur
     + 0 comments

    what is wrong with this??

    include

    using namespace std; int main() { int n,i,m,l,k,j,p,x,sum=0; cin>>n>>m>>p; int a[n];

    for(i=1;i<=n;i++) { cin>>a[i]; } for(i=1;i<=m;i++) { cin>>j>>k>>l; if(j==1) { a[k]=a[k]^l;

     }
 if(j==2)
 {
    for(x=k;x<=l;x++)
    {

        if(x+p-2<n)
        {

            a[x]=a[x]^a[x+1];
            sum+=a[x];
        }
        else
            a[x]=0;
    }
 }

    }

    cout<

    }

  • rajesh_kashyap60
     + 0 comments

    whats wrong here ???

    #include <bits/stdc++.h>

using namespace std;

int main()
{
    int n,m,p;
    cin>>n>>m>>p;
    int arr[n];
     int sum = 0, res = 0 ;
    for(int i = 1 ;i<= n;i++)
    {
        cin>>arr[i] ;
    }
        while(m--)
   {
       int q;
       int l;
       int r ;
    cin>>q>>l>>r;
            if(q == 1)
            {
                arr[l] = arr[l] ^ r;
                // for(int i = 1 ; i<= n ;i++)
                //     cout<<arr[i]<<" ";
            }
            else
            { 
               
                for(int i = l ; i<=r ; i++)
                {
                    if(i+p-1 <= n)
                    {
                        sum = arr[i] ^ arr[i+1] ;
                        res=res + sum ;
                    }
                }
                           cout<<res<<endl;

            }
   }

    return 0 ;
    
}

  • vjvjain0
     + 1 comment

    Can you tell if there are any pre-requisites to the problem?

  • kauziishere
     + 0 comments

    The contest has ended! I am unable to debug my code, to where it is going wrong. I am getting 2 testcases correct. Can someone post sample test cases?