Java program to evaluate the given post-fix expression in O( n) time and with O(n) space complexity. The space complexity is derived from a data-structure which helps you solve the expression
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Consider the post-fix expression below as input Input:
[”2”, ”1”, ”+”, ”4”, ”*”]
Java program to evaluate the given post-fix expression in O( n) time and with O(n) space complexity. The space complexity is derived from a data-structure which helps you solve the expression
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- The time complexity of the following pseudocode is O(n^2). In C++, confirm the time complexity by writing a program and simulating it. Run the code for different values of n. (You will have to play with different values of n that make sense for the question.) The pseudocode is below: int j = 2 while (j int k = j while (k sum += a[k]*b[k] k += n^1/3 log n } j = j*sqrt(5) }Given the declaration:int num1, num2;int *p1;int *p2;double *p3;Mark the following statements as valid or invalid. If a statement is invalid, explain why. a. p1 = &num1;b. num2 = num1 - *p2;c. p3 = p2;d. *p3 = num1;e. *p3 = *p1;f. num1 5 p2;g. p1 = &p2;h. p3 = &num1;i. num1 = *p3;j. num2 = &p1;6.38 LAB: Convert to binary - methods (JAVA) Write a program in java that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in binary. For an integer x, the algorithm is: As long as x is greater than 0 Output x % 2 (remainder is either 0 or 1) x = x / 2 Note: The above algorithm outputs the 0's and 1's in reverse order. You will need to write a second function to reverse the string. Ex: If the input is: 6 the output is: 110 The program must define and call the following two methods. Define a method named intToReverseBinary() that takes an int as a parameter and returns a string of 1's and 0's representing the integer in binary (in reverse). Define a method named stringReverse() that takes a string as a parameter and returns a string representing the input string in reverse. public static String intToReverseBinary(int integerValue)public static String stringReverse(String inputString) Code starts here: import java.util.Scanner; public…
- short answers : c)Give an example of a common floating point arithmetic error due to the particular way in which floating point numbers are stored? d)Give an example of how when using C-strings and the functionstrcpy, things can go wrong.Q1. Write a program in C++ language to obtain the equation below, for values of x from (1 - 20), by using for statement: 2 % v=5 4 costx— VR4 = 4 Il Q2. Write a program in C++ language to sum the elements of array A, array A with 10 integer elements, entering its value from keyboard.The problem statement is described in the problem_statement.pdf file. Write the solution into the fuzzy_phrases/solution.py. Please do not change the input and output contract of the def phrasel_search(P, Queries) -> [[string]] function as the testing of the code correctness will be done programmatically. Note - You can only use standard python libraries. ex - json, random, etc So in the screenshots below we have one that has the instructions which has to be followed and executed , the next one that follows should be an example, that says sample example python this is the problem statement supposed to be used to give you an idea , showing how you should take the phrases to loop through the queries as a parameter. The other screenshot is called the solution output, that is the sample of how the code should look like but it has to be modified. and the other screenshot that says this is the first sample py, is the json file you want to loop through . Thank you
- java please, Complete main() to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. Use the substring() method to parse the string and extract the date. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990. Ex: If the input is: March 1, 1990 April 2 1995 7/15/20 December 13, 2003 -1 then the output is: 3/1/1990 12/13/2003Answer this question, also show how you have solved it. Use De Morgan’s laws to write negation for the following statement: a. The dollar is at an all-time high and the stock market is at a record low. b. This computer program has a logical error in the first ten lines or it is being run with an incomplete data set .4. Write a program in JAVA language to accept 10 integers from the user and print the maximum and minimum values in the output.Note: Use of any data structure is not allowed.
- (using C)Complete the following code to print the following pattern on the screen usingloops. You are only allowed to use a maximum of 2 loop constructs.1a a2 2 2b b b b3 3 3 3 3 main (){int i , j ;char ch ;for ( i = 1; i <= 5; i ++){Write your code here}}Code C Can this be done as a flowchart please? Detailed and clear This week’s exercise is to implement an encoder. When completed, your program should be able to accept a short sentence from the user and display an encrypted version of it. Encryption is a complex subject but we can implement a very simple example as follows. For simplicity, let us assume one case of letters throughout, say CAPITALS. We can use a substitution method to scramble a sentence and then use the reverse of this process to recover it. If we take two rows of the alphabet and shift the bottom row along a specified amount (our key), we can then read the letters in our sentence from the top row and use the substituted letter from the bottom row to form the encrypted sentence: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z X Y Z A B C D E F G H I J K L M N O P Q R S T U V W In the example above, the key is 3, hence the second row is shifted by three characters along. Take, for instance, the sentence “HELLO”.…Write a simple calculator program in C++. Your program should: read in the operator symbol (+, -, *, /) as a char read in two decimal numbers (type double) output the result of performing the requested operation on the given numbers format the output as in the given example HINT: Use a switch statement instead of conditionals. For example: Input Result + 5.5 2.01 5.5 + 2.01 = 7.51