
Let'sdefinelogicalORasanoperationontwologicalvalues(i.e.valuesthatbelongtotheset{0, 1})thatisequalto1ifeitherorbothofthelogicalvaluesissetto1,otherwiseitis0.WecandefinelogicalORofthreeormorelogicalvaluesinthesamemanner:whereisequalto1ifsomeai = 1,otherwiseitisequalto0.NamhasamatrixAconsistingofmrowsandncolumns.Therowsarenumberedfrom1tom,columnsarenumberedfrom1ton.Elementatrowi(1 ≤ ...

Forapositiveintegernlet'sdefineafunctionf:f(n) = - 1 + 2 - 3 + .. + ( - 1)nnYourtaskistocalculatef(n)foragivenintegern.InputThesinglelinecontainsthepositiveintegern(1 ≤ n ≤ 1015).OutputPrintf(n)inasingleline.Sampletest(s)input[crayon-6913a1f534053136734721/]output[crayon-6913a1f53405c659668404/]input[crayon-6913a1f534060966530501/]output[crayon-6913a1f534063894758172/]N...
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