# Recent posts tagged discrete-mathematics

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@Arjun Sir query is correlated.. For each Professor P it checks inner query. If it is nested then NOT EXISTS always return false but here inner query relates outer query by correlated variable P.. Is it not so ??
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Yeah, That's fine. But other institutes including Ace, ME, GateCse(not an institute) gave the answer as D only. IDK why..!!
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Arjun sir . We use register renaming to over come anti dependency. Anti dependency in a instruction itself always causes a stall. So in order to overcome that we use register renaming during the programming phase itself. And the option has asked within a pipeline ... not any possibility of register renaming here as it is done before the program is executed. Please correct me if am wrong. Thanks
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@Pragy Agarwal Shouldn't algorithm stop shifting once it has encountered an infinity. Because after that, all shifting will be of infinity elements only. Once it is clear that only infinty element can be shifted in empty cell, just fill that cell with infinity and stop. This method because it's been asked to minimize the shifting of elements.
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This is not a programing website :) But let me help you. you can redirect from your html to php page by meta tag in head <meta http-equiv="refresh" content="0; url=http://your.com/index.php" />
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Q. 84 By seeing the question, we know the strings of form ab, aabb, aaabbb...... are not possible. Epsilon is also not possible. Now, just check the options with the string ab. Option A, B, C are generating ab. So, correct answer is D.
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A relation $R$ is defined on the set of integers as $xRy$ iff $(x + y)$ is even. Which of the following statements is true? $R$ is not an equivalence relation $R$ is an equivalence relation having 1 equivalence class $R$ is an equivalence relation having 2 equivalence classes $R$ is an equivalence relation having 3 equivalence classes
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Oh sry I posted same link again I meant http://math.stackexchange.com/questions/470424/what-better-way-to-check-if-a-number-is-a-perfect-power
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