double loop clear solution for Pawn Brotherhood by marcel.sliwinski - python coding challenges

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double loop solution in Clear category for Pawn Brotherhood by marcel.sliwinski

def safe_pawns(pawns):
    
    ans=0 
    save=0
    
    for i in pawns:
        for j in pawns:
            if (int(i[1])==int(j[1])+1 and (ord(i[0])==ord(j[0])-1 or ord(i[0])==ord(j[0])+1)):
                if (i!=save):
                    ans=ans+1
                save=i    

    return ans

if __name__ == '__main__':
    #These "asserts" using only for self-checking and not necessary for auto-testing
    assert safe_pawns({"b4", "d4", "f4", "c3", "e3", "g5", "d2"}) == 6
    assert safe_pawns({"b4", "c4", "d4", "e4", "f4", "g4", "e5"}) == 1

Feb. 23, 2017

Look up in the Dict()

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