Programming & Computer Science Answers

Sum of Non-Primes

Write a program to print the sum of non-primes in the given N numbers. The numbers which are not primes are considered as non-primes.

Input

The first line of input will contain a positive integer (N).

The following N lines will contain an integer in each line.

Output

The output should be the sum of non-primes in the given numbers.

Word Count - 2

Given a sentence S, write a program to print the frequency of each word in S, where words are sorted in alphabetical order.

Input

The input will be a single line containing a string S.

Output

The output contains multiple lines, with each line containing a word and frequency of each word in the given string separated by ": ", where words are sorted in alphabetical order.

Explanation

For example, if the given sentence is "Hello world, welcome to python world", the output should be

Hello: 1

python: 1

to: 1

welcome: 1

world: 2

You are given a square matrix A of dimensions NxN. You need to apply the below given 3 operations on the matrix A.

Rotation: It is represented as R S where S is an integer in {90, 180, 270, 360, 450, ...} which denotes the number of degrees to rotate. You need to rotate the matrix A by angle S in the clockwise direction. The angle of rotation(S) will always be in multiples of 90 degrees.

Update: It is represented as U X Y Z. In initial matrix A (as given in input), you need to update the element at row index X and column index Y with value Z.

After the update, all the previous rotation operations have to be applied to the updated initial matrix.

Querying: It is represented as Q K L. You need to print the value at row index K and column index L of the matrix A.

Input

The first line contains a single integer N.

Next N lines contain N space-separated integers Aij (i - index of the row, j - index of the column).

Next lines contain various operations on the array. Each operation on each line (Beginning either with R, U or Q).

-1 will represent the end of input.

Output

For each Query operation print the element present at row index K and colum index L of the matrix in its current state.

The class Object defines an equals() method to compare objects.

Specify the advantages and disadvantages of using this method and suggest an alternative for equality

Write a program to print the even numbers and numbers which are multiple of 7 from numbers between 1 to 50 by defining member function for even number outside the class and making it inline and another member function inside the class. [

Write a statement that assigns finalResult with the sum of num1 and num2, divided by 3. Ex: If num1 is 4 and num2 is 5, finalResult is 3.

What is computer virus

Because of the novel Corona virus, the government of Ghana has tripled the salary of frontline  workers. Write a Qbasic program to triple the worker’s salary. 

Hint: The program would take the worker’s salary as input.

You are given a square matrix A of dimensions NxN. You need to apply the below given 3 operations on the matrix A.

Rotation: It is represented as R S where S is an integer in {90, 180, 270, 360, 450, ...} which denotes the number of degrees to rotate. You need to rotate the matrix A by angle S in the clockwise direction. The angle of rotation(S) will always be in multiples of 90 degrees.

Update: It is represented as U X Y Z. In initial matrix A (as given in input), you need to update the element at row index X and column index Y with value Z.

After the update, all the previous rotation operations have to be applied to the updated initial matrix.

Querying: It is represented as Q K L. You need to print the value at row index K and column index L of the matrix A.

How to definition data in MIPS?