C Programming Input Functions

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Questions and Answers

Which of the following is NOT a type of operator in C language?

Logical Operators

Arithmetic Operators

Database Operators (correct)

Bitwise Operators

What is the primary purpose of an operator in C language?

To declare functions

To perform operations (correct)

To manage memory

To define a variable

In the expression 'int value = 10 + 20 * 20;', which operator will be evaluated first?

Subtraction (-)

Multiplication (*) (correct)

Assignment (=)

Addition (+)

Which of the following operator categories has right-to-left associativity?

Conditional Operators Signup and view all the answers

Which operator is used for addition in C?

<ul> <li></li> </ul> Signup and view all the answers

What will the value of 'value' be in the equation 'int value = 5 * (2 + 3);'?

25 Signup and view all the answers

Which operator is categorized as a Bitwise Operator in C?

^ Signup and view all the answers

What is the purpose of the getchar() function in C?

To read a single character from the keyboard. Signup and view all the answers

Which format specifier is used to input a float value in the scanf function?

%f Signup and view all the answers

What does the printf() function do in a C program?

Outputs a formatted string to the console. Signup and view all the answers

What is the output of the printf statement printf("%d", 20);?

20 Signup and view all the answers

What is an incorrect usage of the puts() function?

Accepting input from the user. Signup and view all the answers

What will be the output of the expression 'a = x++' after inputting x as 10?

11 Signup and view all the answers

What is the output of the expression 'b = --y' if the initial value of y is 5?

4 Signup and view all the answers

When using the conditional operator 'age >= 18 ? printf("you can vote") : printf("you can not vote")', what will happen if age is 17?

It will print 'you can not vote' Signup and view all the answers

What does the Bitwise AND operator produce when applied to the values 6 and 14?

6 Signup and view all the answers

Given a value of a as 10, what will the output of the operation '~a' be?

-11 Signup and view all the answers

What will happen if the shift operator is applied to an unsigned integer value of 1?

2 Signup and view all the answers

In the expression 'B = A--', what occurs after this statement if A was initially 3?

B will be 3, and A will be 2 Signup and view all the answers

Which of the following is NOT a bitwise operator in C?

-> Signup and view all the answers

What does the comma operator do in a C expression?

Links multiple expressions to evaluate them sequentially Signup and view all the answers

If 'sizeof(int)' returns 4, which of the following statements is correct?

An int occupies 4 bytes in memory Signup and view all the answers

What is the result of the following code snippet? `int a = 10; int b = 20; if(!(a > 0 && b > 0)) { printf("Both values are greater than 0"); } else { printf("Both values are less than 0"); }`

Both values are less than 0 Signup and view all the answers

What is the output of the code if `num1` is 50 and `num2` is 30? `if(num1 > num2) { printf("The value of num1 is greater than num2"); } else { printf("The value of num2 is greater than num1"); }`

The value of num1 is greater than num2 Signup and view all the answers

What does the `+=` assignment operator do in the expression `n2 += n1;`?

It adds n1 to n2 and assigns the result to n2 Signup and view all the answers

What will be the output of the following code if `n1 = 5` and `n2 = 10`? `n2 -= n1; printf("The value of n2 : %d", n2);`

5 Signup and view all the answers

In the context of the increment operator, what happens in the statement `x = ++A;`?

A is incremented before being assigned to x Signup and view all the answers

What does the statement `n1 %= n2;` return?

The remainder of n1 divided by n2 Signup and view all the answers

What will be the updated values of x, y, and z after executing the following code? `int x, y, z; ++x; ++y; ++z;` assuming initial values x=10, y=15, z=20.

x=11, y=16, z=21 Signup and view all the answers

Which assignment operator would change `n2` from 10 to 50 using `n1` which is 5? `n2 *= n1;`

The multiply and assignment operator Signup and view all the answers

What value is printed by the statement 'printf("%d", *ptr);' in the provided code?

50 Signup and view all the answers

What is the size of the char data type as indicated in the provided code?

1 Signup and view all the answers

Which of the following is an example of a valid arithmetic expression in C?

-a + b / 5 Signup and view all the answers

In the evaluation of the expression '-a + b * c - d / e + f', which operators are evaluated first?

Unary operators (+, -) Signup and view all the answers

If the value of 'a' is 1.5, 'b' is 2.0, 'c' is 3.5, 'd' is 5.0, 'e' is 2.5, and 'f' is 1.25, what is the first step in evaluating the expression '-a + b * c - d / e + f'?

Evaluate -a Signup and view all the answers

Which operator has lower precedence than the multiplicative operators in C?

Additive operators Signup and view all the answers

What is the result of the arithmetic expression 'A + 2' if 'A' refers to the character 'A'?

67 Signup and view all the answers

Which statement is true about the 'sizeof()' operator in C?

It returns the memory size of a data type. Signup and view all the answers

What is the primary purpose of operator precedence and associativity in C expressions?

To determine the order of evaluation Signup and view all the answers

If an expression contains multiple operators of the same precedence, how are they evaluated?

From left to right Signup and view all the answers

Which of the following is categorized as a relational operator in C?

<blockquote> = </blockquote> Signup and view all the answers

What is the associativity of the logical OR operator (||) in C?

Left to right Signup and view all the answers

Which operator would you use for a ternary conditional operation in C?

?: Signup and view all the answers

What will be the result of applying the modulus operator (%) to two integers, 10 and 3?

1 Signup and view all the answers

In the precedence of operators, which category has the highest priority?

Postfix Signup and view all the answers

If a = 5 and b = 3, what would be the output of the expression 'a * b++'?

15 Signup and view all the answers

Which operator would you use to perform bitwise XOR in C?

^ Signup and view all the answers

What indicates that an expression is valid based on operator usage?

It must result in a single operand after evaluating all operators. Signup and view all the answers

Which function is used to read a single character from the keyboard in C?

getchar() Signup and view all the answers

What does the format specifier '%s' represent in formatted I/O functions?

String value Signup and view all the answers

In the statement 'scanf("%s %d", str, &i);', what does the '&' symbol before 'i' signify?

It provides the address of 'i' for input storage. Signup and view all the answers

What will be the output of the following line in the printf function: printf("%c", 'A');?

A Signup and view all the answers

What is the purpose of the logical NOT operator in C?

To reverse the value of a boolean expression Signup and view all the answers

What is the output of the expression when n1 is 5 and n2 is 10 in the code 'n2 -= n1;'?

5 Signup and view all the answers

What does the statement 'n2 *= n1;' do if n1 is 5 and n2 is initially 10?

Increases n2 to 50 Signup and view all the answers

In the expression '++x', what does the increment operator do?

Increments x before its value is used. Signup and view all the answers

What is the output of the program if the initial values of x, y, and z are 10, 15, and 20 respectively, after executing '++x; ++y; ++z;'?

11, 16, 21 Signup and view all the answers

Which of the following correctly uses the subtract and assignment operator?

A -= B; // A is decreased by B Signup and view all the answers

What does the modulus and assignment operator '%' do when used as 'n1 %= n2;'?

Returns the remainder of n1 divided by n2 Signup and view all the answers

What does 'n2 += n1;' do in the context of variable assignment?

Assign the sum of n1 and n2 to n2 Signup and view all the answers

What will the output be if the values of 'a' and 'b' are both greater than 0 in the given logical expression?

Both values are greater than 0 Signup and view all the answers

What will the value of 'a' be after executing 'a = x++' when x is initially 10?

11 Signup and view all the answers

Which operator is used to decrease the value of a variable by 1 before it is assigned in an expression?

Pre Decrement Signup and view all the answers

What is the output of the expression 'a = 6 & 14' using the Bitwise AND operator?

6 Signup and view all the answers

What does the conditional operator 'age >= 18 ? printf("you can vote") : printf("you can not vote")' evaluate if age is 15?

It prints 'you can not vote' Signup and view all the answers

What is the result of 'printf("%d", ~8)' in the given code?

-8 Signup and view all the answers

How does the bitwise OR operator work when evaluating 'a | b' if a = 23 and b = 10?

Returns 31 Signup and view all the answers

Given 'B = A--', what happens to A after this statement if A is initially 10?

9 Signup and view all the answers

Which statement about the sizeof operator is correct?

It returns the size of a type or variable in bytes Signup and view all the answers

What is the effect of the bitwise left shift operator '<<' when applied to an unsigned integer?

It increases the value by a factor of 2 Signup and view all the answers

What will be the updated value of 'x' after executing '--x' if x is initially 10?

9 Signup and view all the answers

What value will be printed by the statement 'printf("%d", *ptr);' in the provided code?

50 Signup and view all the answers

What is the storage size of a float data type as indicated in the provided code?

4 Signup and view all the answers

Which arithmetic expression is valid when 'a' and 'b' are of type int?

++a - --b Signup and view all the answers

In evaluating the expression '-a + b * c - d / e + f', which type of operator is evaluated first?

Multiplicative operators (*, /) Signup and view all the answers

If 'A' is the character 'A', what is the result of the expression 'A + 2'?

67 Signup and view all the answers

What does the 'sizeof()' operator primarily function to determine?

The memory space allocated for each C data type Signup and view all the answers

What is one method to evaluate a complex arithmetic expression in C?

Applying operator precedence and associativity Signup and view all the answers

What is the output when 'printf("Storage size for double data type:%d\n", sizeof(d));' is executed?

8 Signup and view all the answers

Which of the following represents an invalid arithmetic expression?

a b Signup and view all the answers

Which of the following statements is true regarding the evaluation of multiple operators of the same precedence?

They are evaluated from left to right. Signup and view all the answers

Study Notes

Operators in C Language

An operator is a symbol used to perform operations on variables and values.
Types of operators include:
- Arithmetic Operators
- Relational Operators
- Shift Operators
- Logical Operators
- Bitwise Operators
- Ternary or Conditional Operators
- Assignment Operators
- Miscellaneous Operators

Operator Precedence and Associativity

Operator precedence determines the order of evaluation in expressions.
Associativity defines the direction of evaluation (left to right or right to left).
Example: In int value = 10 + 20 * 2;, * is evaluated before +, resulting in 50.

Arithmetic Operators

Used for performing mathematical operations: addition, subtraction, multiplication, division, and modulus.
Syntax for addition: C = A + B.
Precedence and associativity of arithmetic operators:
- Postfix: () [] -> . ++ -- (Left to right)
- Unary: + - ! ~ ++ -- (type) * & sizeof (Right to left)
- Multiplicative: * / % (Left to right)
- Additive: + - (Left to right)

Logical Operators

Logical operators evaluate Boolean expressions and include:
- Logical AND (&&): true if both operands are true.
- Logical OR (||): true if at least one operand is true.
- Logical NOT (!): negates the truth value.

Assignment Operators

Used to assign values to variables.
Types include:
- Simple assignment (=),
- Compound operators (+=, -=, *=, /=, %=).
Example of plus and assignment operator: A += B is equivalent to A = A + B.

Increment and Decrement Operators

Unary operators to increase or decrease the operand value by 1:
- Increment: ++A (pre-increment), A++ (post-increment).
- Decrement: --A (pre-decrement), A-- (post-decrement).

Conditional Operator

A ternary operator denoted by ?: used for conditional expressions.
Syntax: condition ? expression1 : expression2;
If condition is true, evaluate expression1; otherwise, evaluate expression2.

Bitwise Operators

Manipulate data at the bit level. Types include:
- Bitwise AND (&),
- Bitwise OR (|),
- Bitwise XOR (^),
- Right shift (>>),
- One's complement (~).

Special Operators

Include comma operator (,), sizeof operator, pointer operators (& and *), and member selection operators (. and ->).
sizeof operator determines the memory size of data types in C.

Arithmetic Expressions

Contain only arithmetic operators and operands.
Example expressions can consist of numerous combinations of valid operators and operands.
Invalid expressions lack connecting operators between operands.

Evaluation of Arithmetic Expressions

Evaluated based on operator precedence and associativity rules.
Steps for evaluation:
- Determine operator binding.
- Convert expression to equivalent mathematical form if possible.
- Evaluate the expression based on operator binding.

Example Cases

Example of conditional expression for voting eligibility based on age input.
Evaluation examples using bitwise operators demonstrating their functionality and results.### Input and Output Operations
Input refers to supplying data to a program, while output involves displaying or writing data, either to a screen or a file.
The C programming language provides functions like printf() for output and scanf() for input.

Reading and Writing Characters

getchar(): Reads a single character from input and stores it in a character variable.
- Usage: char ch; ch = getchar();
- No parameters are required.
putchar(): Displays a single character on the console.
- Usage: char ch = 'A'; putchar(ch);
- Equivalent to printf("%c", ch);

Example of getchar and putchar

Example code reads a character and displays it:

int c;
printf("Enter a value: ");
c = getchar();
printf("\nYou entered: ");
putchar(c);

Reading and Writing Strings

gets(): Reads a whole string from the keyboard.
- Syntax: gets(string);
puts(): Displays a string on the console.
- Syntax: puts(str);

Example of gets and puts

Example code that reads and displays a string:

char str[100];
printf("Enter a value: ");
gets(str);
printf("\nYou entered: ");
puts(str);

Formatted Input and Output

Formatted I/O functions enable input and output in various formats using specific format specifiers for different data types.

Common Format Specifiers

%d: signed integer
%c: character
%f: floating-point
%s: string
%ld: long integer
%u: unsigned integer
%i: integer
%lf: double
%n: prints nothing

printf() Function

Used to display values of various types on the console.
Syntax: printf("Format Specifier", var1, var2, ...);

Example:

int a = 20;
printf("%d", a); // Output: 20

scanf() Function

Used to read user input from the keyboard.
Requires & (address-of operator) to store the value at the variable's memory location.
Syntax: scanf("Format Specifier", &var1, &var2, ...);

Example:

int num1;
printf("Enter an integer number: ");
scanf("%d", &num1);
printf("You have entered %d", num1);

sprintf() and sscanf()

sprintf(): Similar to printf(), but outputs to a character array.

Syntax: sprintf(array_name, "format specifier", variable_name);

Example:

char str[100];
int a = 2, b = 8;
sprintf(str, "%d and %d are even numbers", a, b);
printf("%s", str); // Output: 2 and 8 are even numbers

sscanf(): Similar to scanf(), but reads from a string or character array.

Syntax: sscanf(array_name, "format specifier", &variable_name);

Example:

char str[100];
int c, d;
sprintf(str, "a = %d and b = %d", 2, 8);
sscanf(str, "a = %d and b = %d", &c, &d);
printf("c = %d and d = %d", c, d); // Output: c = 2 and d = 8

Operators in C Language

An operator is a symbol used to perform operations on variables and values.
Types of operators include:
- Arithmetic Operators
- Relational Operators
- Shift Operators
- Logical Operators
- Bitwise Operators
- Ternary or Conditional Operators
- Assignment Operators
- Miscellaneous Operators

Operator Precedence and Associativity

Operator precedence determines the order of evaluation in expressions.
Associativity defines the direction of evaluation (left to right or right to left).
Example: In int value = 10 + 20 * 2;, * is evaluated before +, resulting in 50.

Arithmetic Operators

Used for performing mathematical operations: addition, subtraction, multiplication, division, and modulus.
Syntax for addition: C = A + B.
Precedence and associativity of arithmetic operators:
- Postfix: () [] -> . ++ -- (Left to right)
- Unary: + - ! ~ ++ -- (type) * & sizeof (Right to left)
- Multiplicative: * / % (Left to right)
- Additive: + - (Left to right)

Logical Operators

Logical operators evaluate Boolean expressions and include:
- Logical AND (&&): true if both operands are true.
- Logical OR (||): true if at least one operand is true.
- Logical NOT (!): negates the truth value.

Assignment Operators

Used to assign values to variables.
Types include:
- Simple assignment (=),
- Compound operators (+=, -=, *=, /=, %=).
Example of plus and assignment operator: A += B is equivalent to A = A + B.

Increment and Decrement Operators

Unary operators to increase or decrease the operand value by 1:
- Increment: ++A (pre-increment), A++ (post-increment).
- Decrement: --A (pre-decrement), A-- (post-decrement).

Conditional Operator

A ternary operator denoted by ?: used for conditional expressions.
Syntax: condition ? expression1 : expression2;
If condition is true, evaluate expression1; otherwise, evaluate expression2.

Bitwise Operators

Manipulate data at the bit level. Types include:
- Bitwise AND (&),
- Bitwise OR (|),
- Bitwise XOR (^),
- Right shift (>>),
- One's complement (~).

Special Operators

Include comma operator (,), sizeof operator, pointer operators (& and *), and member selection operators (. and ->).
sizeof operator determines the memory size of data types in C.

Arithmetic Expressions

Contain only arithmetic operators and operands.
Example expressions can consist of numerous combinations of valid operators and operands.
Invalid expressions lack connecting operators between operands.

Evaluation of Arithmetic Expressions

Evaluated based on operator precedence and associativity rules.
Steps for evaluation:
- Determine operator binding.
- Convert expression to equivalent mathematical form if possible.
- Evaluate the expression based on operator binding.

Example Cases

Example of conditional expression for voting eligibility based on age input.
Evaluation examples using bitwise operators demonstrating their functionality and results.### Input and Output Operations
Input refers to supplying data to a program, while output involves displaying or writing data, either to a screen or a file.
The C programming language provides functions like printf() for output and scanf() for input.

Reading and Writing Characters

getchar(): Reads a single character from input and stores it in a character variable.
- Usage: char ch; ch = getchar();
- No parameters are required.
putchar(): Displays a single character on the console.
- Usage: char ch = 'A'; putchar(ch);
- Equivalent to printf("%c", ch);

Example of getchar and putchar

Example code reads a character and displays it:

int c;
printf("Enter a value: ");
c = getchar();
printf("\nYou entered: ");
putchar(c);

Reading and Writing Strings

gets(): Reads a whole string from the keyboard.
- Syntax: gets(string);
puts(): Displays a string on the console.
- Syntax: puts(str);

Example of gets and puts

Example code that reads and displays a string:

char str[100];
printf("Enter a value: ");
gets(str);
printf("\nYou entered: ");
puts(str);

Formatted Input and Output

Formatted I/O functions enable input and output in various formats using specific format specifiers for different data types.

Common Format Specifiers

%d: signed integer
%c: character
%f: floating-point
%s: string
%ld: long integer
%u: unsigned integer
%i: integer
%lf: double
%n: prints nothing

printf() Function

Used to display values of various types on the console.
Syntax: printf("Format Specifier", var1, var2, ...);

Example:

int a = 20;
printf("%d", a); // Output: 20

scanf() Function

Used to read user input from the keyboard.
Requires & (address-of operator) to store the value at the variable's memory location.
Syntax: scanf("Format Specifier", &var1, &var2, ...);

Example:

int num1;
printf("Enter an integer number: ");
scanf("%d", &num1);
printf("You have entered %d", num1);

sprintf() and sscanf()

sprintf(): Similar to printf(), but outputs to a character array.

Syntax: sprintf(array_name, "format specifier", variable_name);

Example:

char str[100];
int a = 2, b = 8;
sprintf(str, "%d and %d are even numbers", a, b);
printf("%s", str); // Output: 2 and 8 are even numbers

sscanf(): Similar to scanf(), but reads from a string or character array.

Syntax: sscanf(array_name, "format specifier", &variable_name);

Example:

char str[100];
int c, d;
sprintf(str, "a = %d and b = %d", 2, 8);
sscanf(str, "a = %d and b = %d", &c, &d);
printf("c = %d and d = %d", c, d); // Output: c = 2 and d = 8

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C Programming Input Functions

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Questions and Answers

Which of the following is NOT a type of operator in C language?

What is the primary purpose of an operator in C language?

In the expression 'int value = 10 + 20 * 20;', which operator will be evaluated first?

Which of the following operator categories has right-to-left associativity?

Which operator is used for addition in C?

What will the value of 'value' be in the equation 'int value = 5 * (2 + 3);'?

Which operator is categorized as a Bitwise Operator in C?

What is the purpose of the getchar() function in C?

Which format specifier is used to input a float value in the scanf function?

What does the printf() function do in a C program?

What is the output of the printf statement printf("%d", 20);?

What is an incorrect usage of the puts() function?

What will be the output of the expression 'a = x++' after inputting x as 10?

What is the output of the expression 'b = --y' if the initial value of y is 5?

When using the conditional operator 'age >= 18 ? printf("you can vote") : printf("you can not vote")', what will happen if age is 17?

What does the Bitwise AND operator produce when applied to the values 6 and 14?

Given a value of a as 10, what will the output of the operation '~a' be?

What will happen if the shift operator is applied to an unsigned integer value of 1?

In the expression 'B = A--', what occurs after this statement if A was initially 3?

Which of the following is NOT a bitwise operator in C?

What does the comma operator do in a C expression?

If 'sizeof(int)' returns 4, which of the following statements is correct?

What is the result of the following code snippet? int a = 10; int b = 20; if(!(a > 0 && b > 0)) { printf("Both values are greater than 0"); } else { printf("Both values are less than 0"); }

What is the output of the code if num1 is 50 and num2 is 30? if(num1 > num2) { printf("The value of num1 is greater than num2"); } else { printf("The value of num2 is greater than num1"); }

What does the += assignment operator do in the expression n2 += n1;?

What will be the output of the following code if n1 = 5 and n2 = 10? n2 -= n1; printf("The value of n2 : %d", n2);

In the context of the increment operator, what happens in the statement x = ++A;?

What does the statement n1 %= n2; return?

What will be the updated values of x, y, and z after executing the following code? int x, y, z; ++x; ++y; ++z; assuming initial values x=10, y=15, z=20.

Which assignment operator would change n2 from 10 to 50 using n1 which is 5? n2 *= n1;

What value is printed by the statement 'printf("%d", *ptr);' in the provided code?

What is the size of the char data type as indicated in the provided code?

Which of the following is an example of a valid arithmetic expression in C?

In the evaluation of the expression '-a + b * c - d / e + f', which operators are evaluated first?

If the value of 'a' is 1.5, 'b' is 2.0, 'c' is 3.5, 'd' is 5.0, 'e' is 2.5, and 'f' is 1.25, what is the first step in evaluating the expression '-a + b * c - d / e + f'?

Which operator has lower precedence than the multiplicative operators in C?

What is the result of the arithmetic expression 'A + 2' if 'A' refers to the character 'A'?

Which statement is true about the 'sizeof()' operator in C?

What is the primary purpose of operator precedence and associativity in C expressions?

If an expression contains multiple operators of the same precedence, how are they evaluated?

Which of the following is categorized as a relational operator in C?

What is the associativity of the logical OR operator (||) in C?

Which operator would you use for a ternary conditional operation in C?

What will be the result of applying the modulus operator (%) to two integers, 10 and 3?

In the precedence of operators, which category has the highest priority?

If a = 5 and b = 3, what would be the output of the expression 'a * b++'?

Which operator would you use to perform bitwise XOR in C?

What indicates that an expression is valid based on operator usage?

Which function is used to read a single character from the keyboard in C?

What does the format specifier '%s' represent in formatted I/O functions?

In the statement 'scanf("%s %d", str, &i);', what does the '&' symbol before 'i' signify?

What will be the output of the following line in the printf function: printf("%c", 'A');?

What is the purpose of the logical NOT operator in C?

What is the output of the expression when n1 is 5 and n2 is 10 in the code 'n2 -= n1;'?

What does the statement 'n2 *= n1;' do if n1 is 5 and n2 is initially 10?

In the expression '++x', what does the increment operator do?

What is the output of the program if the initial values of x, y, and z are 10, 15, and 20 respectively, after executing '++x; ++y; ++z;'?

Which of the following correctly uses the subtract and assignment operator?

What does the modulus and assignment operator '%' do when used as 'n1 %= n2;'?

What does 'n2 += n1;' do in the context of variable assignment?

What will the output be if the values of 'a' and 'b' are both greater than 0 in the given logical expression?

What will the value of 'a' be after executing 'a = x++' when x is initially 10?

Which operator is used to decrease the value of a variable by 1 before it is assigned in an expression?

What is the output of the expression 'a = 6 & 14' using the Bitwise AND operator?

What does the conditional operator 'age >= 18 ? printf("you can vote") : printf("you can not vote")' evaluate if age is 15?

What is the result of 'printf("%d", ~8)' in the given code?

How does the bitwise OR operator work when evaluating 'a | b' if a = 23 and b = 10?

Given 'B = A--', what happens to A after this statement if A is initially 10?

Which statement about the sizeof operator is correct?

What is the effect of the bitwise left shift operator '<<' when applied to an unsigned integer?

What will be the updated value of 'x' after executing '--x' if x is initially 10?

What value will be printed by the statement 'printf("%d", *ptr);' in the provided code?

What is the storage size of a float data type as indicated in the provided code?

Which arithmetic expression is valid when 'a' and 'b' are of type int?

In evaluating the expression '-a + b * c - d / e + f', which type of operator is evaluated first?

If 'A' is the character 'A', what is the result of the expression 'A + 2'?

What is the result of the following code snippet? `int a = 10; int b = 20; if(!(a > 0 && b > 0)) { printf("Both values are greater than 0"); } else { printf("Both values are less than 0"); }`

What is the output of the code if `num1` is 50 and `num2` is 30? `if(num1 > num2) { printf("The value of num1 is greater than num2"); } else { printf("The value of num2 is greater than num1"); }`

What does the `+=` assignment operator do in the expression `n2 += n1;`?

What will be the output of the following code if `n1 = 5` and `n2 = 10`? `n2 -= n1; printf("The value of n2 : %d", n2);`

In the context of the increment operator, what happens in the statement `x = ++A;`?

What does the statement `n1 %= n2;` return?

What will be the updated values of x, y, and z after executing the following code? `int x, y, z; ++x; ++y; ++z;` assuming initial values x=10, y=15, z=20.

Which assignment operator would change `n2` from 10 to 50 using `n1` which is 5? `n2 *= n1;`