q1.go
Explanation The program defines a slice of strings input_strings containing various strings. It then uses the sort.Slice function to sort the strings based on two criteria:
The number of occurrences of the letter "a" in each string. The length of the strings. The sorting is done in descending order of the number of "a" occurrences, followed by descending order of string length.
Example Output After running the program, you should see the sorted strings printed to the console.
q2.go
Explanation The program defines a recursive function recursive that takes an integer n as input. If n is equal to 1, the function returns without performing any further operations. Otherwise, it recursively calls itself with n/2 as the new input and then prints the original value of n.
In the main function, the recursive function is called with the input 9, which triggers the recursive calls and prints the values of 9, 4, 2, and 1 in that order.
Example Output After running the program, you should see the following output: 2 4 9
q3.go
Explanation The program defines a function getMostRepeatedString that takes a slice of strings inputList as input. It then iterates through the input list and maintains a count of each string's occurrences in a map counts. The function keeps track of the string with the maximum count maxCount and updates the mostRepeatedString variable accordingly. Finally, it returns the mostRepeatedString.
In the main function, the getMostRepeatedString function is called with the input ["apple", "pie", "apple", "red", "red", "red"], which returns "red" as the most repeated string, and this result is printed to the console.
Example Output After running the program, you should see the following output: red
q4.go
The API server will start running on http://localhost:8000.
Endpoints GET /users: Get all users. GET /users/{id}: Get a user by ID. POST /users: Create a new user. PUT /users/{id}: Update a user by ID. DELETE /users/{id}: Delete a user by ID. Usage You can use tools like cURL or Postman to interact with the API endpoints. Here are some examples:
Get all users:
curl http://localhost:8000/users
Get a user by ID:
curl http://localhost:8000/users/1
Create a new user:
curl -X POST -H "Content-Type: application/json" -d '{"username":"newuser","email":"newuser@example.com"}' http://localhost:8000/users
Update a user by ID:
curl -X PUT -H "Content-Type: application/json" -d '{"username":"updateduser","email":"updateduser@example.com"}' http://localhost:8000/users/1 Delete a user by ID:
curl -X DELETE http://localhost:8000/users/1
Database The API uses an SQLite database (users.db) to store user data. The database file will be created automatically if it does not exist.
Dependencies The API uses the following external packages:
github.com/gorilla/mux for routing HTTP requests. github.com/mattn/go-sqlite3 for interacting with the SQLite database.
User-Management-app
Start the development server
npm run dev