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i am not able to find the correct approach to this problem or how to solve it ...https://www.spoj.com/problems/HISTOGRA

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spoj histogra

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

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Use stack. for O(n) complexity.         

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

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