| Title | Topics | Action | |||
|---|---|---|---|---|---|
| 29 | Declare an IntDeclare an `int` variable named `count` with the value 10, then print it (see Ex... | easy | ○ Not Started | Variables | Solve |
| 30 | Declare a DoubleDeclare a `double` variable named `pi` with the value 3.14, then print it (see E... | easy | ○ Not Started | Variables | Solve |
| 31 | Declare a StringDeclare a `string` variable named `word` with the value "hello", then print it (... | easy | ○ Not Started | Variables | Solve |
| 32 | Declare a BoolDeclare a `bool` variable named `isReady` with the value true, then print it (C#... | easy | ○ Not Started | Variables | Solve |
| 33 | Sum of Two Int VariablesTwo int variables `a` and `b` are given. Print their sum (see Expected Output).... | easy | ○ Not Started | Variables | Solve |
| 34 | Difference of Two VariablesTwo int variables are given. Print the first minus the second (see Expected Outp... | easy | ○ Not Started | Variables | Solve |
| 35 | Product of Two VariablesTwo int variables are given. Print their product (see Expected Output).... | easy | ○ Not Started | Variables | Solve |
| 36 | Use var for Type InferenceThe `var` keyword lets C# infer the type from the value. Use `var` to declare a ... | easy | ○ Not Started | Variables | Solve |
| 37 | Declare a ConstantA `const` value cannot be changed after it is set. Declare `const int Max = 100;... | easy | ○ Not Started | Variables | Solve |
| 38 | Integer DivisionWhen both operands are ints, `/` does integer division (it drops the fractional ... | easy | ○ Not Started | Variables | Solve |
| 39 | Remainder with ModuloThe `%` operator gives the remainder of a division. Print the remainder of 17 di... | easy | ○ Not Started | Variables | Solve |
| 40 | Double DivisionIf at least one operand is a double, `/` keeps the decimal part. Print the resul... | easy | ○ Not Started | Variables | Solve |
| 41 | Reassign a VariableDeclare an int with value 5, then reassign it to 10, then print it (see Expected... | easy | ○ Not Started | Variables | Solve |
| 42 | Increment a VariableThe `++` operator adds 1 to a variable. Start with 5, increment it, then print i... | easy | ○ Not Started | Variables | Solve |
| 43 | Compound AssignmentThe `+=` operator adds a value to a variable. Start with 10, add 5 using `+=`, t... | easy | ○ Not Started | Variables | Solve |
| 44 | Average of Two NumbersTwo int variables are given. Print their (integer) average (see Expected Output)... | easy | ○ Not Started | Variables | Solve |
| 237 | Your First IntegerEvery program keeps track of data using variables. In this exercise you will cre... | easy | ○ Not Started | Variables | Solve |
| 238 | Greeting with a StringString variables hold text. Declare a string variable named name and assign it t... | easy | ○ Not Started | Variables | Solve |
| 239 | A Price with DecimalsThe double type stores numbers that can have a decimal point. Declare a double v... | easy | ○ Not Started | Variables | Solve |
| 240 | True or FalseA bool variable holds one of two values: true or false. Declare a bool variable ... | easy | ○ Not Started | Variables | Solve |
| 241 | A Single CharacterThe char type stores exactly one character, written between single quotes. Decla... | easy | ○ Not Started | Variables | Solve |
| 242 | Adding Two NumbersVariables can be combined in calculations. Declare two int variables: a with the... | easy | ○ Not Started | Variables | Solve |
| 243 | Changing a ValueAfter you declare a variable you can change its value by assigning a new one, as... | easy | ○ Not Started | Variables | Solve |
| 342 | Declare a CharDeclare a `char` variable named `letter` with the value `'A'`, then print it (se... | easy | ○ Not Started | Variables | Solve |
| 343 | Declare a LongDeclare a `long` variable named `population` with the value `8000000000` (too la... | easy | ○ Not Started | Variables | Solve |
| 344 | Declare a FloatDeclare a `float` variable named `pi` with the value `3.14f`, then print it (see... | easy | ○ Not Started | Variables | Solve |
| 345 | Declare a DecimalDeclare a `decimal` variable named `price` with the value `19.99m`, then print i... | easy | ○ Not Started | Variables | Solve |
| 346 | Declare a ByteDeclare a `byte` variable named `level` with the value `255` (the largest value ... | easy | ○ Not Started | Variables | Solve |
| 347 | Negate a BooleanA `bool isOpen` is set to `true`. Declare `bool isClosed` as its logical opposit... | easy | ○ Not Started | Variables | Solve |
| 348 | ASCII Code to CharacterThe integer `code = 66` is an ASCII value. Cast it to a `char` and print the cha... | easy | ○ Not Started | Variables | Solve |
| 349 | Convert an Int to a StringDeclare `int year = 2026`. Convert it to a `string` using `.ToString()`, store t... | easy | ○ Not Started | Variables | Solve |
| 350 | Decrement a VariableDeclare `int lives = 3`, then use the `--` operator to decrease it by one and pr... | easy | ○ Not Started | Variables | Solve |
| 351 | Square a VariableDeclare `int n = 6`. Compute its square (`n` times `n`), store it in `square`, t... | easy | ○ Not Started | Variables | Solve |
| 352 | Negate a NumberDeclare `int n = 5`. Store its negation (`-n`) in a variable named `opposite`, t... | easy | ○ Not Started | Variables | Solve |
| 353 | Area of a RectangleDeclare `int width = 5` and `int height = 3`. Compute the area (`width` times `h... | easy | ○ Not Started | Variables | Solve |
| 45 | Cast a Double to an IntCasting a double to an int with `(int)` drops the decimal part (it truncates, no... | medium | ○ Not Started | Variables | Solve |
| 46 | Parse a String to an Int`int.Parse` converts a string of digits into an int. Parse "42" and print the va... | medium | ○ Not Started | Variables | Solve |
| 47 | Divide Ints as DoublesTo get a decimal result from two ints, cast one to double first. Print 7 divided... | medium | ○ Not Started | Variables | Solve |
| 48 | Store a Boolean ExpressionA comparison can be stored in a bool variable. Given x = 10, store whether x is ... | medium | ○ Not Started | Variables | Solve |
| 49 | Swap Two VariablesSwap the values of two int variables using a temporary variable, then print them... | medium | ○ Not Started | Variables | Solve |
| 50 | Parse a String to a Double`double.Parse` converts a decimal string to a double. Parse "3.5", add 1, and pr... | medium | ○ Not Started | Variables | Solve |
| 51 | Character to ASCII CodeCasting a `char` to an `int` gives its character code. Print the code for the le... | medium | ○ Not Started | Variables | Solve |
| 52 | Declare Several VariablesYou can declare several variables of the same type in one statement. Declare thr... | medium | ○ Not Started | Variables | Solve |
| 53 | Celsius to FahrenheitConvert a Celsius temperature to Fahrenheit using F = C * 9 / 5 + 32. Given cels... | medium | ○ Not Started | Variables | Solve |
| 244 | A Small ProfileReal programs often combine several different variable types in one message. Dec... | medium | ○ Not Started | Variables | Solve |
| 245 | Comparing for EqualityA boolean variable can store the result of a comparison. Declare two int variabl... | medium | ○ Not Started | Variables | Solve |
| 246 | Building a Word from CharactersConsole.Write prints without moving to a new line, while Console.WriteLine adds ... | medium | ○ Not Started | Variables | Solve |
| 354 | Fahrenheit to CelsiusDeclare `double fahrenheit = 212`. Convert it to Celsius with the formula `(fahr... | medium | ○ Not Started | Variables | Solve |
| 355 | Last Digit of a NumberDeclare `int number = 3742`. Use the modulo operator `%` to find its last digit,... | medium | ○ Not Started | Variables | Solve |
| 356 | Assign the Max with a TernaryDeclare `int a = 7` and `int b = 3`. Use the ternary operator `?:` to store the ... | medium | ○ Not Started | Variables | Solve |
| 357 | Compute a PercentageDeclare `int score = 45` and `int total = 60`. Compute what percentage `score` i... | medium | ○ Not Started | Variables | Solve |
| 358 | Combine Conditions with ANDDeclare `int age = 25` and `bool hasTicket = true`. Store whether the person can... | medium | ○ Not Started | Variables | Solve |
| 359 | Combine Conditions with ORDeclare `bool isWeekend = false` and `bool isHoliday = true`. Store whether it i... | medium | ○ Not Started | Variables | Solve |
| 360 | Digit Character to NumberDeclare `char digit = '7'`. Convert the character to its numeric value by subtra... | medium | ○ Not Started | Variables | Solve |
| 361 | Minutes to Hours and MinutesDeclare `int totalMinutes = 135`. Split it into whole hours and leftover minutes... | medium | ○ Not Started | Variables | Solve |
| 362 | Apply a DiscountDeclare `int price = 80` and `int discountPercent = 25`. Compute the final price... | medium | ○ Not Started | Variables | Solve |
| 363 | Seconds to H:M:SDeclare `int totalSeconds = 5025`. Break it into hours, minutes, and seconds, th... | hard | ○ Not Started | Variables | Solve |
| 364 | Reverse a Three-Digit NumberDeclare `int n = 123`. Using arithmetic on its digits (no loops or strings), bui... | hard | ○ Not Started | Variables | Solve |
| 365 | Sum of Digits of a Three-Digit NumberDeclare `int n = 384`. Using arithmetic (no loops or strings), add its three dig... | hard | ○ Not Started | Variables | Solve |
| 366 | Split Cents into Dollars and CentsDeclare `int totalCents = 1234`. Split it into whole dollars and leftover cents,... | hard | ○ Not Started | Variables | Solve |