1. The Data Encryption Standard (DES) was developed in the 1970s by the National Bureau of Standards to provide a standard method for protecting sensitive commercial and unclassified data. Refer to DES algorithm tables, then answer the following. i. The original selected Message is "66 AO FF B1 23 98 00 28" find R1 & L1.

ii. By using the following values, find R16

R14= 10100111 10011100 10101010 00111010

R15= 01011010 10110011 10011110 10100111​

Consider the following statements: #include #include class temporary { private: string description; double first; double second; public: temporary(string = "", double = 0.0, double = 0.0); void set(string, double, double); double manipulate(); void get(string& , double& , double& ); void setdescription(string); void setfirst(double); void setsecond(double); }; write the definition of the member function set() so that the instance variables are set according to the parameters. write the definition of the constructor so that it initializes the instance variables using the function set() write the definition of the member function manipulate() that returns a decimal number (double) as follows: if the value of description is "rectangle", it returns first * second if the value of description is "circle" it returns the area of a circle with radius first if the value of description is "cylinder" it returns the volume of a cylinder with radius first and height second. hint: the volume of a cylinder is simply the area of the circle at the base times the height. if the value of description is "sphere" it returns the volume of the sphere with radius first. otherwise it returns -1.0;

Someone plzz me which of these defines a social search? a. asking a search engine a question that is answered by a real person on the other sideb. modifying search results based on popularity of a web pagec.modifying search results based on a ranking of a web page

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