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AMR10G - Christmas Play

question->https://www.spoj.com/problems/AMR10G/

my code->https://ideone.com/IiDwWu

i am getting WA on spoj

spoj

Asked by: Avinash_Kumar on April 7, 2019, 6:34 p.m. Last updated on April 7, 2019, 6:34 p.m.

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2 Answer(s)

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for this testcase
5 3
1 4 5 6 10
your code o/p : 4
correct o/p : 2

you need to check the difference between the max and min elements by taking every possible window of size k.

change this :
           for(i=0;i<a;i= i+b-1)
           { if(i+b-1<a)
            {   
                k=ar[i+b-1]-ar[i];
                c=min(k,c);
            }
           }

to :            for(i=0;i<a;i++)
           { if(i+b-1<a)
            {   
                k=ar[i+b-1]-ar[i];
                c=min(k,c);
            }
           }

a small tip : you can use the sort() function in stl to sort an array. It's worst case time complexity is O(nlog(n)) ,while that of quicksort is O(n^2).

Shubham_Kumar_Gupta last updated on April 7, 2019, 6:34 p.m. 0    Reply    Upvote   

avatar

http://recursionnitd.in/askrec/questions/93
 

Shubham_Kumar_Gupta last updated on April 7, 2019, 6:34 p.m. 0    Reply    Upvote   

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