For Loop MCQ in C
- Q1) What is the correct syntax of for loop in C? ...
- Q2) What will be the correct syntax for running two variables in for loop simultaneously? ...
- Q3) What is the output of the given below program? ...
- Q4) What is the output of the given below program? ...
- Q5) Find the output of the given program? ...
- Q6) What is the output of the given below program? ...
Full Answer
What is loops in C/C++?
Loops in C/C++ come into use when we need to repeatedly execute a block of statements. For loop is a repetition control structure which allows us to write a loop that is executed a specific number of times. The loop enables us to perform n number of steps together in one line.
How many looping statements does C support?
C supports three looping statements. In this exercise we will practice lots of looping problems to get a strong grip on loop. This is most recommended C programming exercise for beginners. Always feel free to drop your queries, suggestions, hugs or bugs down below in the comments section.
What is list of Loop programming exercises?
List of loop programming exercises Write a C program to print all natural numbers from 1 to n. - using while loop Write a C program to print all natural numbers in reverse (from n to 1). - using while loop Write a C program to print all alphabets from a to z. - using while loop Write a C program to print all even numbers between 1 to 100.
Which variable is initialized before for loop to 5?
Variables ‘i’ is initialized before for loop to ‘5’, condition is FALSE always as ‘0’ is provided that causes NOT to execute loop statement, iteration is decrement of counter variable ‘i’. 6) How many times loop will be executed?
What is for loop in C example?
Suppose, the user entered 10. The count is initialized to 1 and the test expression is evaluated. Since the test expression count<=num (1 less than or equal to 10) is true, the body of for loop is executed and the value of sum will equal to 1. Then, the update statement ++count is executed and count will equal to 2.
What is a for loop in C?
The for loop in C language is used to iterate the statements or a part of the program several times. It is frequently used to traverse the data structures like the array and linked list.
Can we initialize two variables in for loop in C?
Yes, I can declare multiple variables in a for-loop.
What are the 3 types of loops in C?
In C programming, there are three types of loops, namely For Loop, While Loop and Do While Loop. Loops in C can also be combined with other control statements that include Break statement, Goto statement and Control statement.
What are the 3 parts of a for loop?
Similar to a While loop, a For loop consists of three parts: the keyword For that starts the loop, the condition being tested, and the EndFor keyword that terminates the loop.
Can a for loop have two conditions?
It do says that only one condition is allowed in a for loop, however you can add multiple conditions in for loop by using logical operators to connect them.
Can we write for loop without initialization?
A 'for' loop can be written without initialization. A 'for' statement usually goes like: for (initialization; test-condition; update). We can leave out any or all three of them at a time.
Can we declare a variable in for loop in C?
There is no such thing as "construction" in C, so the space for the variable will simply be allocated into the stack (without any initialization), when the function is called. That's why there is a "zero" cost when declaring the variable inside a loop.
Can we increment 2 variables in for loop?
Incrementing two variables is bug prone, especially if you only test for one of them. For loops are meant for cases where your loop runs on one increasing/decreasing variable. For any other variable, change it in the loop.
Which loop is faster in C language?
"Do-While loop is the fastest loop in C programming".
Who is the father of C language?
Dennis RitchieC / Designed byDennis MacAlistair Ritchie was an American computer scientist. He is most well-known for creating the C programming language and, with long-time colleague Ken Thompson, the Unix operating system and B programming language. Wikipedia
What is current syntax of for loop?
Syntax of a For Loop The for loop starts with a for statement followed by a set of parameters inside the parenthesis. The for statement is in lower case. Please note that this is case sensitive, which means the for command always has to be in lower case in C programming language.
What happens when a loop condition fails?
For loop condition fails at the first iteration itself. Thus it prints nothing.
What happens when you put a non zero value in a condition place of a for loop?
Here in condition place of for loop, we just put a non zero value, thus it becomes infinite for loop.
Can I++ be negative?
Here, the char is declared as unsigned char. So the i++ in for loop can never yield negative value and i >= 0 never becomes false so that it loop for infinite number of times.
How many for loops are in a single for loop?
Here, two for loops are embedded in a single for loop. Thus two for loops printf simultaneously and outputted 1 1 2 2 3 3 .
What does Outter for Loop fail to do?
Outter for loop itself fails. Thus the control directly goes to the printf and prints the value of k i.e) 99 as a output.
What does the semicolon at the end of a for loop mean?
In this code, semicolon at end of the for loop signifies that there is no body exists for this loop. So, for variable initialized with ‘0’ and terminate with ‘5’.
Can a loop run infinitely?
In this code,Loop can run infinitely if condition is set to TRUE always or no condition is specified, i.e. for (;;)but in this condition, we specify terminating in if statement and by break statement we exit the for loop.
What is a looping statement?
Looping statement defines a set of repetitive statements. These statements are repeated with same or different parameters for a number of times. Looping statement is also known as iterative or repetitive statement. C supports three looping statements. for loop.
Do you have to escape source code before commenting?
Before commenting you must escape your source code before commenting. Paste your source code inside
For Loop
When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop:
Syntax
Statement 1 is executed (one time) before the execution of the code block.