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not getting the logic how to make it AP on codeforces for this questn ( ALMOST ARITHMETIC PROGRESSION)--- http://codeforces.com/contest/978/problem/D


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you have to use brute force approach and try all possibilities on first two elements and generate the rest AP for this two element. In last, choose the AP that have minimal changes. As you can make 9 such possibilities with first two elements so time complexity is O(n).

rishup132 last updated on April 7, 2019, 6:34 p.m. 0    Reply    Upvote   

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