Write two different programs to compute x^n mod m (x, n and m are integers≥0).
Note that you are not allowed to use “pow” function from library
(a). powmod1(x, n,m)
It computes x^n mod m by repeated multiplications, i. e. using iteration.

(b). powmod2(x, n, m)
It computes x^n mod m by using the following inductive definition
x^0 mod m= 1
x^n mod m=〖〖(x⋅x mod m)〗^(n/2) 〗^ mod m if n is even
x^n mod m=〖(x⋅x〗^(n-1) mod m) mod m if n is odd
Discuss which the above program is more efficient using big-O notation. If you are not sure about which one is more efficient, test your code on computer, using the following data. Present the timing result to support your conclusion.
For x=29, m = 773, use n = 100,000,000, 500,000,000 and 1,000,000,000

Why would a programmer use the logical operator and in an if statement? a: when an action is to be taken that requires both conditions to be falseb: when an action is to be taken that requires both conditions to be truec: when an action is to be taken that requires the first condition to be falsed: when an action is to be taken that requires the second condition to be truei took the test and the answer is b.

What is transmission control protocol/internet protocol (tcp/ip)? software that prevents direct communication between a sending and receiving computer and is used to monitor packets for security reasons a standard that specifies the format of data as well as the rules to be followed during transmission a simple network protocol that allows the transfer of files between two computers on the internet a standard internet protocol that provides the technical foundation for the public internet as well as for large numbers of private networks

Write a program that displays the following menu: geometry calculator 1. calculate the area of a circle 2. calculate the area of a rectangle 3. calculate the area of a triangle 4. quit enter your choice (1-4): if the user enters 1, the program should ask for the radius of the circle and then display its area. use the following formula: area = ď€(the square of r) use 3.14159 for ď€ and the radius of the circle for r. if the user enters 2, the program should ask for the length and width of the rectangle and then display the rectangle’s area. use the following formula: area = length * width if the user enters 3, the program should ask for the length of the triangle’s base and its height, and then display its area. use the following formula: area = base * height * .5 if the user enters 4, the program should end. input validation: display an error message if the user enters a number outside the range of 1 through 4 when selecting an item from the menu. do not accept negative values for the circle’s radius, the rectangle’s length or width, or the triangle’s base or height. note: if the user enters an improper menu choice (1-4), the program prints "the valid choices are 1 through 4. run the program again and select one of those." if the user enters a negative radius, the program prints "the radius can not be less than zero." if the user enters a negative value for height or base, the program prints "only enter positive values for base and height."