9d Learn Pseudocodes by Heart | 现代数学启蒙

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Sure! Here are a few code writing questions with their solutions provided immediately after each question:

Question 1: Write pseudocode to declare an array StudentNames with 5 elements, and then prompt the user to input names to fill this array.

Solution 1:

Question 2: Write a pseudocode function SumArray that takes an array of integers and its size as parameters and returns the sum of all elements in the array.

Solution 2:

Solution

速记

Here's how to progressively replace the provided code with blanks in 8 steps, adding one more replaced line in each step, as exemplified in your uploaded file:

Initial Code:

Replace FUNCTION line:

Replace DECLARE line:

Replace sum assignment:

Replace FOR loop line:

Replace sum calculation inside loop:

Replace NEXT i:

Replace RETURN line:

Each step increases the number of blanks, following the pattern demonstrated in your uploaded document.

Question 3: Write pseudocode to open a file named "Data.txt" for writing, write the string "Hello, World!" to the file, and then close the file.

Solution 3:

Question 4: Define a procedure GreetUser that takes a string parameter name and outputs a greeting message "Hello, [name]!".

Solution 4:

Question 5: Write pseudocode to declare a record type Employee with fields Name, Position, and Salary. Then, declare a variable of this type and assign values to its fields.

Solution 5:

Question 6: Write pseudocode to implement a WHILE loop that repeatedly asks the user to enter a number until they enter the number 0.

Solution 6:

Question 7: Write a pseudocode function IsEven that takes an integer as a parameter and returns TRUE if the number is even and FALSE otherwise.

Solution 7:

Question 8: Write pseudocode to declare a two-dimensional array Table with 4 rows and 3 columns, and then initialize each element to the product of its row and column indices.

Solution 8:

Question 9: Write pseudocode to define a procedure PrintArray that takes an array of integers and its size as parameters and prints each element of the array.

Solution 9:

Question 10: Write pseudocode to implement a FOR loop that calculates the factorial of a given integer n.

Solution 10:

Question 11: Write pseudocode to declare a user-defined type Car with fields Make, Model, and Year. Then, declare a variable of this type and assign values to its fields.

Solution 11:

Question 12: Write pseudocode to open a file named "Scores.txt" for appending, write a new score to the file, and then close the file.

Solution 12:

Question 13: Write a pseudocode function CalculateAverage that takes an array of integers and its size as parameters and returns the average of all elements in the array.

Solution 13:

Question 14: Write pseudocode to read integers from a file named "Numbers.txt" and store them in an array Numbers. Assume the file contains one integer per line.

Solution 14:

Question 15: Write pseudocode to define a function IsPrime that takes an integer as a parameter and returns TRUE if the number is prime and FALSE otherwise.

Solution 15:

Question 16: Write pseudocode to declare a user-defined type Rectangle with fields Length and Width. Then, declare a variable of this type and assign values to its fields.

Solution 16:

Question 17: Write pseudocode to define a procedure BubbleSort that takes an array of integers and its size as parameters and sorts the array using the bubble sort algorithm.

Solution 17:

Question 18: Write pseudocode to implement a REPEAT UNTIL loop that asks the user to enter a password until the correct password "P@ssw0rd" is entered.

Solution 18:

Question 19: Write pseudocode to define a function SumDigits that takes an integer as a parameter and returns the sum of its digits.

Solution 19:

Question 20: Write pseudocode to declare a two-dimensional array Grid with 3 rows and 3 columns, and then fill the array with the value 1.

Solution 20:

Question 21: Write pseudocode to implement a WHILE loop that calculates the sum of all even numbers from 1 to 100.

Solution 21:

Question 22: Write pseudocode to define a function ReverseString that takes a string as a parameter and returns the string reversed.

Solution 22:

Question 23: Write pseudocode to define a procedure PrintMultiplicationTable that prints the multiplication table for numbers 1 to 10.

Solution 23:

Question 24: Write pseudocode to open a file named "Log.txt" for writing, write the current date to the file, and then close the file. Assume the current date is stored in a variable currentDate.

Solution 24:

Question 25: Write pseudocode to define a function GCD that takes two integers as parameters and returns their greatest common divisor using the Euclidean algorithm.

Solution 25:

Question 26: Write pseudocode to declare an array Temperatures with 7 elements, each representing the temperature of a week, and calculate the average temperature.

Solution 26:

Question 27: Write pseudocode to define a procedure CalculateSquares that takes an array of integers and its size as parameters and replaces each element with its square.

Solution 27:

Question 28: Write pseudocode to implement a REPEAT UNTIL loop that asks the user to enter their age until a valid age (between 1 and 120) is entered.

Solution 28:

Question 29: Write pseudocode to define a function IsPalindrome that takes a string as a parameter and returns TRUE if the string is a palindrome and FALSE otherwise.

Solution 29:

Question 30: Write pseudocode to declare an array Prices with 10 elements, then find and output the highest price.

Solution 30:

Question 31: Write pseudocode to define a procedure InitializeMatrix that takes a two-dimensional array and its dimensions as parameters and initializes each element to 0.

Solution 31:

Question 32: Write pseudocode to implement a WHILE loop that asks the user to enter a positive number and continues until the user enters a negative number.

Solution 32:

Question 33: Write pseudocode to define a function CountVowels that takes a string as a parameter and returns the number of vowels in the string.

Solution 33:

Question 34: Write pseudocode to declare a user-defined type Point with fields X and Y, and then declare a variable of this type and assign values to its fields.

Solution 34:

Question 35: Write pseudocode to define a procedure SelectionSort that takes an array of integers and its size as parameters and sorts the array using the selection sort algorithm.

Solution 35:

These questions should provide you with plenty of practice to master the pseudocode concepts outlined in the guide.