We'll assume you're ok with this, but you can opt-out if you wish. C programming Looping Aptitude Questions and Answers – Looping (while, for, do while) Aptitude Questions and Answers in C programming for beginners and experienced. Here you will get nested looping (loop within loop) programs. Viewed 94 times 2. In this article. (5) What will be output of following c code? MongoDB Operators Tutorial – What are Different Operators Available? Danach beginnt eine while Schleife, in den Klammern ist die Durchlauf-Bedingung gesetzt. C program to find HCF and LCM of two integers. Is there any difference between "take the initiative" and "show initiative"? (adsbygoogle = window.adsbygoogle || []).push({}); Enter your email address to subscribe to this blog and receive notifications of new posts by email. Your email address will not be published. What is the point of reading classics over modern treatments? Need to return a value from a do/while and multiple while loops - C… This is a dirty, hacky workaround, not a fix! Write a C program to print all natural numbers in reverse (from n to 1). 62. Here, the key point to note is that a while loop might not execute at all. Necessary cookies are absolutely essential for the website to function properly. This question already has answers here: Why are floating point numbers inaccurate? Floating point is not designed to work for currency and will cause results that are wrong, inaccurate and sometimes even illegal. When your data is, or deleted, you will receive an email confirmation. Its equivalent decimal value is 9. i < x i.e. In inner do- while loop while condition is ! Flow Diagram. This is done in order to. Go to the editor Sample Output: Input the base: 2 Input the exponent: 5 2 ^ 5 = 32 Click me to see the sample solution. C Program to print Multiplication table using do-while loop. (6 answers) Closed 2 years ago. Since is equal to for so if condition is also true. This category only includes cookies that ensures basic functionalities and security features of the website. The while statement executes a statement or a block of statements while a specified Boolean expression evaluates to true.Because that expression is evaluated before each execution of the loop, a while loop executes zero or more times. Loops execute a series of statements until a condition is met or satisfied. Your email address will not be published. Check out the questions below along with their answers: Go through C Theory Notes on Loops before studying questions. They test one’s knowledge and brainpower. Never use floating point to do currency calculations. i = 1 + 1 = 2 i.e. Hence program control will come out of the for loop. This website uses cookies to improve your experience. C Programming Multiple Choice Question - Structure And Loops. But opting out of some of these cookies may affect your browsing experience. Interview Questions on Loops in C++ : (20) Questions . 67 --> C 68 --> D 69 --> E 70 --> F 71 --> G 72 --> H 73 --> I 74 --> J 75 --> K Click me to see the sample solution. What went wrong? Loops execute a series of statements until a condition is met or satisfied. Blog Last minute gift ideas for the programmer in your life. i < x i.e. In programming to iterate over the same block of code multiple times, there are a few methods. So program control will also come out of the outer do-while loop. C program to find HCF and LCM of two integers. We also use cookies and/or similar technologies to, , administer the website, track users' movements, and to collect information about users. if loop condition is true. So, initial value of variable i = 0, For loop starts value: ++i i.e. Here is a list of such programs :-Print text within double quotes (” “). -1. There are two do-while loops in the above code. For loop condition: i = -1 . Use integers to count cents and check what your laws say about rounding. When the user enters a negative number, the loop terminates. OK, No problem here. - using while loop; Write a C program to print all odd number between 1 to 100. while(!ready) { /* Wait for some other thread to set ready */ } ... is a really, really, expensive way to wait -- it'll use as much CPU as the OS will give it, for as long as ready is false, stealing CPU time with which the other thread could be doing useful work.. Answer : a. C programming Looping (while, do while, for) programs. So loop condition true. Code get executed, but printf statement didn't print due to condition. Easily attend exams after reading these Multiple Choice Questions. Podcast 302: Programming in PowerPoint can teach you a few things. Join Stack Overflow to learn, share knowledge, and build your career. Let’s see how we can use the recursive calls to print numbers from 1 to 10. These are MCQ type Aptitude Questions and Answers with Explanation. C Program to print Multiplication table using while loop. Why would the ages on a 1877 Marriage Certificate be so wrong. C while loop tricky exceptions [duplicate] Ask Question Asked 2 years, 8 months ago. The Loop #1: How we conduct research on the Community team ... Concept behind these four lines of tricky C code. - using while loop; Write a C program to print all alphabets from a to z. Hence printf function will print value of variable i i.e. Since n++; is last statement of loop body hence, program control is transferred back to loop condition while(n <= 10). Looping questions and answers with explanation for written test exam and interview . I did step by step printing, and it turns out that for any amount between 0.35 and 1.15, the program stops at the last 0.050000, instead of going back to the loop and loop it one last time. Thanks Codor for the explanation, I understand now and will not use float in this type of situations again :), I see, thanks Lyall Pearce, this is very helpful! while (boolean-expression) statement; where while is a reserved word, boolean-expression is an expression that evaluates to true or false, and statement is a C++ statement, or a group of statements enclosed by curly braces (a compound statement). What will be output of following c code? C program to calculate factorial using "while loop". C Program to print Multiplication table using while loop. MongoDB Projection Tutorial : Return Specific Fields From Query, MongoDB Index Tutorial – Create Index & MongoDB Index Types, Downloading & Installing MongoDB on Windows & MAC. Looping statements whose condition is checked prior to the execution of its body is called as Entry controlled loop. A three digit number is called Armstrong number if sum of cube of its digit is equal to number itself. Following are the some basic tricky questions in C language. This Page has various questions. Take integer inputs from user until he/she presses q ( Ask to press q to quit after every integer input ). When your data is anonymized or deleted, you will receive an email confirmation. if loop condition is false. AS we know do-while executes at least one time even that condition is false. Required fields are marked *. This website uses cookies to improve your experience while you navigate through the website. Stack Overflow for Teams is a private, secure spot for you and Since the value of the variable var is same (there is no ++ or – operator used on this variable, inside the body of loop) the condition var<=2 will be true forever and the loop would never terminate. Loops execute a series of statements until a condition is met or satisfied. C Programming Questions and Answers has been designed with a special intention of helping students and professionals preparing for various Certification Exams and Job Interviews.This section provides a useful collection of sample Interview Questions and Multiple Choice Questions (MCQs) and their answers with appropriate explanations. So while loop condition is true. 1, In c 1 means true so while condition is true. What will be the output of the following code? C program to calculate factorial using "function". C programming Looping Aptitude Questions and Answers – Looping (while, for, do while) Aptitude Questions and Answers in C programming for beginners and experienced. It is mandatory to procure user consent prior to running these cookies on your website. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. C Puzzle Programs, C Tricky Programs – C programs - This section contains many C language Puzzles related programs, these programs are solved by using tricks – these all are Tricky C programs. Interview question and ans on Loops in C++ - loops are used to execute programming statements n number of times. Hence printf function will print value of i = 1 and j = 3 (Due to post increment operator). while loop is an entry controlled looping construct. We also use cookies and/or similar technologies to analyze customer behaviour, administer the website, track users' movements, and to collect information about users. These are MCQ type Aptitude Questions and Answers with Explanation. Due to break keyword program control will come out of the for loop. 0. This program computes the sum of first 5 natural numbers. Thanks so much for your time! Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. #include, Default value of static int variable in c is zero. Why battery voltage is lower than system/alternator voltage. (7) What will be output of following c code? Why are floating point numbers inaccurate? Copyright © 2019 TutorialsJar. He supplied code and I couldn't believe my eyes! C program to find factorial using for loop. Übersetzen wir den Schleifen-Befehl ins Deutsche, hört sich das etwa so an: „solange i kleiner gleich 100″. That is again false. This is terrible, but it is a matter of fact. Following are the some basic tricky questions in C language. You also have the option to opt-out of these cookies. All the data shown above will be stored by TutorialsJar on https://www.tutorialsjar.com/. This may seem easy but beginners may get puzzled while printing text within double quotes. (2) What will be output of following c code? If a macro needs to be expanded in multiple lines, it is the best practice to write those lines within do{ }while(0) to avoid macro side effects. Do-While Loop Questions List For Loop Questions List . In c zero means false so while condition is false. Due to continue keyword program control will come at the beginning of the for loop and value of variable i will be: i < x i.e. -2 = 0. Why did Michael wait 21 days to come to help the angel that was sent to Daniel? So, if condition is true. Here, the key point to note is that a while loop might not execute at all. Hence program control will come out of the while loop. CppBuzz.com: Home C C++ Java Python Perl PHP SQL JavaScript Linux Selenium QT Online Test ☰ Home » C++ » Interview Questions on Loops in C++. The is no bug in your code in the strictest sense as the underlying reasoning is correct; however note that the value 0.35 cannot be represented exactly in the float datatype, the same holds for 0.05; as the division (what basically is the sematics of the code in the question) is implemented via repeated subtraction, the error caused by the inability to exactly represent the desired values accumulates. Loops help in not writing the same code again & again. All 100 questions are compiled before uploading on cppbuzz.com. :). Thanks again. How to emulate a do-while loop in Python? Can playing an opening that violates many opening principles be bad for positional understanding? How are we doing? Why is “while ( !feof (file) )” always wrong? Interview Questions on loops in C - for, while & do-while. In C zero means false. It provides flexibility to define loop without initialization and update parts (present in for loop). Consider the while loop condition: i + 1 ? This way, you get rid of all 'rounding' issues. Browse other questions tagged c while-loop or ask your own question. Following are the some basic tricky questions in C language. During each iteration, the number entered by the user is added to the sum variable. Example. — i : ++j, So ternary operator will return -–i i.e. i = 3 + 1 = 4 i.e. Again loop condition is checked for n=2 and last step 2-4 are repeated with new value of n till (n <= 10). Where does the law of conservation of momentum apply? They are − Using loops; Using goto statements; Using recursive functions; Since you can’t use loops or goto statements, the only valid method is using the recursive functions. We also use third-party cookies that help us analyze and understand how you use this website. This page contains real 100 MCQs on C programming. The result is that the number of subtractions is different from the analytically expected result, as the termination condition is reached too soon. c) GeeksQuiz is printed 7 times d) GeeksQuiz is printed 4 times. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. The loop iterates while the condition is true. The program is an example of infinite while loop. (4)What will be output of following c code? Der Schleifen-Block wird also solange wiederholt ausgeführt, wie der Wert der Variablen i kleiner oder gleich 100 ist. 011 is octal number. All the data shown above will be stored by TutorialsJar on, time, you can contact us and select the data you wish to, or delete so it cannot be linked to your email address any longer. These cookies do not store any personal information. We use while loop to repeat set of statements when number of iterations are not known prior to its execution. This site uses Akismet to reduce spam. Notify me of follow-up comments by email. 9 < 9 i.e. Why should we use the fundamental definition of derivative while checking differentiability? if loop condition is true. 0. Example 2: while loop to compute sum of first 5 natural numbers using System; namespace Loop { class WhileLoop { public static void Main(string[] args) { int i=1, sum=0; while (i<=5) { sum += i; i++; } Console.WriteLine("Sum = {0}", sum); } } } When we run the program, the output will be: Sum = 15. #include extern int x; Read More » Hence program control will come out of the inner do-while loop. E 101, SRK Silicana Apartments, These Multiple Choice Questions (mcq) should be practiced to improve the C programming skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations. Note: %o is used to print the number in octal format. We may come across various tricky programs in our day to day life. A while that does nothing probably is a bad thing:. Even when just learning or writing example code get into the habit of doing it right.Trying to get numbers to add up correctly while an angry accountant yells at you 45 minutes before midnight at the turn of the month is not fun (especially when it's someone elses code). There are 3 loops in C++, for, while, do-while. How to label resources belonging to users in a two-sided marketplace? What happens to a Chain lighting with invalid primary target and valid secondary targets? Hence printf statement will print 1, So ternary operator will return -–i i.e. i = 0 + 1 = 1, For loop condition: ++i i.e. Once n = 11, the loop condition while(n <= 10) gets false and loop terminate. rev 2021.1.8.38287. So while loop condition is false. Dies ist auch unser Kontrollpunkt. Doddathoguru, Electronics City Phase 1, Bengalurur - 560100, Karnataka (3) What will be output of following c code? What’s The Difference Between Them. Learn how your comment data is processed. Tricky for Loop [closed] Ask Question Asked 8 years, 4 months ago. However your loop is not doing nothing: Even if Democrats have control of the senate, won't new legislation just be blocked with a filibuster? This is done in order to personalize and enhance your experience with us. loop condition is true. I am bothered by a question of for loop in C language. when i write: #include #include main() { int i = 0; for( ; i ; ) { printf("In for Loop"); } getch(); } Output: NOTHING PRINT. Tricky Questions And Answers. Ask a Question Home » C programs. 6 < 9 i.e. Looping questions and answers with explanation for written test exam and interview in c programming language. Here variable x is extern type. 3 < 9 i.e. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. Write a program in C++ to find power of any number using for loop. Active 2 years, 8 months ago. Do firbolg clerics have access to the giant pantheon? I will bear in mind the floating point rounding for future :). The float datatype is not suitable for financial calculations, even in such a very small everyday example. Tricky questions are based on common sense and logic. Syntax for a single-line Bash infinite while loop. Floating points are never exactly accurate, try calculating, Look at the answer, it's not quite accurate. Barrel Adjuster Strategy - What's the best way to use barrel adjusters? Looping is the process by which you can give instruction to the compiler to execute a code segment repeatedly, here you will find programs related to c looping – programs using for, while and do while. Please help us improve Stack Overflow. You are hitting up against floating point rounding. C++ do...while Loop . = 1 && 2 //In c any non-zero number represents true. May be in technical interviews, coding tests, or in C/C++ classrooms. But due to break keyword program control will come out of the for loop. Easily attend exams after reading these Multiple Choice Questions. Why use apparently meaningless do-while and if-else statements in macros? Flow Diagram. The loop iterates while the condition is true. - using while loop; Write a C program to print all even numbers between 1 to 100. 0 < 9  i.e. loop condition is true. admin@tutorialsjar.com. At any point of time, you can contact us and select the data you wish to anonymize or delete so it cannot be linked to your email address any longer. Hence program control will come out of the for loop. So it will search the definition of variable x. which is present at the end of the code. if loop condition is true. Your best bet is to accept the input, convert it to an integer (ie, cents) by multiplying by 100, removing any decimals using round() and assigning to a long. Currently working as a Technology Analyst in INFOSYS Ltd. So value of variable x =8. How are you supposed to react when emotionally charged (for right reasons) people make inappropriate racial remarks? C Program to print Multiplication table using do-while loop. i = 2 + 1 =3. Solve question related to Cpp - Loops. The while loop continues until the user enters a negative number. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. C program to find factorial using for loop. Powered By. and if I were to edit I would have used int() instead of round(), but looking at your suggestion I looked up the differences and learned a little more. 63. Generate IP (Internet Protocol) Addresses Using; Print Multiplication Table Using; Sort A Float Array In Ascending And Descending Order Using; Find GCD of two Numbers Using ; Switch Case- C Programming Questions and Answers List. Explanation : When the control come to inner loop, condition will always be true as j is less than 1 and it will break the inner loop. These cookies will be stored in your browser only with your consent. Concept behind these four lines of tricky C code, Need to return a value from a do/while and multiple while loops - C, Track and print amount of times the while loop was used, Sub-string Extractor with Specific Keywords. Hi, I am Mohit Arora , a passionate blogger and addicted reader. When the condition becomes false, the program control passes to the line immediately following the loop. i < x i.e. Since variable i is not equal to 1. Every MCQ has 4 objective & 1 correct answer. Since -1 is non- zero number. After GeeksQuiz is printed once, the control reaches the while statement to check for the condition. This section focuses on the "Structure And Loops" of the C programming. Since, the condition is false, the loop gets terminated. Finally, the total sum is displayed. - using while loop; Write a C program to print all even numbers between 1 to 100. Most efficient and feasible non-rocket spacelaunch methods moving into the future? (6) What will be output of following c code? Solve question related to C - Loop and loop. Easily attend exams after reading these Multiple Choice Questions. Go through C Theory Notes on Loops before studying questions. Although they are hard, it is possible to answer them with some practice and knowledge. C program to calculate factorial using "function". Hence printf statement will print 4. C program to calculate factorial using "while loop". How do digital function generators generate precise frequencies? - using while loop; Write a C program to print all odd number between 1 to 100. Finding nearest street name from selected point using ArcPy. - using while loop; Write a C program to print all alphabets from a to z. 5. Go through C Theory Notes on Loops before studying questions. C while loop tricky exceptions [duplicate]. Write a C program to print all natural numbers in reverse (from n to 1). When the condition becomes false, the program control passes to the line immediately following the loop. Out of the box, thinking plays a major role while answering them. I have read and accepted the Privacy Policy *. your coworkers to find and share information. I am a beginner and this is (a simplified version of) part of a code I am writing: 1.prompt user to input a number (float dollar amount), lets say user will only key in amount which are multiples of 0.05 ; 2.calculate the (int)number of nickels in that dollar amount. Hence printf statement will print 2, Loop incrimination: ++I i.e. Looping questions and answers with explanation for written test exam and interview in c programming language. while scanning .35 amount as float the actual amount value is 0.3499, site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. For loop condition: ++i i.e. So program control will reach  at printf statement at it will print octal number 10 which is equal to decimal number 8. In outer do-while loop while condition is 0. Is it possible for an isolated island nation to reach early-modern (early 1700s European) technology levels? Why are elementwise additions much faster in separate loops than in a combined loop? PostGIS Voronoi Polygons with extend_to parameter. EDIT: cmaster showed me that using floor() didn't work, using $0.57 as input, when using 'double' variables (not float), $0.57 converted to (long) 56! Then, change your code to compare against 5 cents, not $0.05, and to reduce by 5 cents, not $0.05. Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. Live Demo. MongoDB vs RDBMS? It works for any amount <=0.3 or >=1.2 (so $2 has 40 nickels, and $0.30 has 6 nickels); but one nickel less for any amount between/including 0.35 and 1.15 (so $0.35 has 6 nickels, and $1 has 19 nickels). Prior to the line immediately following the loop ) ” always wrong a program in C++ - Loops used. Update parts ( present in for loop and i could n't believe my eyes presses q Ask... Essential for the website solange wiederholt ausgeführt, wie der Wert der Variablen i gleich! Why did Michael wait 21 days to come to help the angel that was sent to?. Integer input ) on the Community team... Concept behind these four lines of tricky c code mongodb Tutorial... Hcf and LCM of two integers function properly using do-while loop in mind the floating point is not suitable financial. Some basic tricky questions in c is zero number itself loop tricky exceptions [ ]! Terrible, but it is possible to answer them with some practice and knowledge tricky exceptions [ ]! Tests, or deleted, you will get nested looping ( loop loop! But opting out of the website of for loop ) ” always wrong ( 3 ) What be. Everyday example for ) programs printing text within double quotes ( ” “ ) Phase,. The option to opt-out of while loop tricky questions in c cookies will be stored by TutorialsJar on:! Print due to post increment operator ) these are MCQ type Aptitude questions answers. Bad thing: >, Default value of variable i = 0 for! An isolated island nation to reach early-modern ( early 1700s European ) Technology levels 5 numbers! Not known prior to the giant pantheon playing an opening that violates many opening principles bad! To check for the condition is met or satisfied help us analyze and understand you. Also solange wiederholt ausgeführt, wie der Wert der Variablen i kleiner gleich 100″ der Schleifen-Block wird solange. Such programs: -Print text within double quotes programs in our day to day life übersetzen wir den Schleifen-Befehl Deutsche. Policy * datatype is not suitable for financial calculations, even in such a very small everyday example 560100! Point using ArcPy plays a major role while answering them added to the line immediately the... Finding nearest street name from selected point using ArcPy 2 years, 4 months.... Know do-while executes at least one time even that condition is false the Community team... Concept behind these lines! Analyst in INFOSYS Ltd j = 3 ( due to break keyword program control passes to the immediately! Number 10 which is present at the end of the website to function properly loop without initialization and update (... Questions and answers with explanation for written test exam and interview in separate Loops than in two-sided! The while loop might not execute at all will be output of following c code try calculating, Look the. Times d ) GeeksQuiz is printed once, the number entered by the user added. Two integers solve question related to c - loop and Do while loop my eyes is. Moving into the future called Armstrong number if sum of first 5 natural numbers in reverse from... ' issues questions on Loops in C++ - Loops are used to Multiplication! Blogger and addicted reader early-modern while loop tricky questions in c early 1700s European ) Technology levels any. To print Multiplication table using do-while loop n = 11, the program control will out..., 4 months ago point rounding for future: ) your data is, or,. Loops before studying questions calculating, Look at the end of the inner do-while loop, and build your.. Never exactly accurate, try calculating, Look at the answer, it 's quite... And update parts ( present in for loop cookies are absolutely essential for the condition becomes false, control... Is terrible, but printf statement at it will search the definition of variable i i.e numbers in reverse from... Loop and Do while, Do while loop Analyst in INFOSYS Ltd integers to count cents and What... A negative number, the condition becomes false, the loop questions on Loops before studying questions out questions... Interviews, coding tests, or deleted, you will receive an email confirmation the sum variable iterations... Role while answering them execute while loop tricky questions in c statements n number of subtractions is Different from the analytically expected,... Hi, i am bothered by a question of for loop alphabets from a to z check What your say. Type Aptitude questions and answers on Loops like while loop, for loop and Do while loop Write. We know do-while executes at least one time even that condition is also.. Out the questions below along with their answers: the program control passes to the immediately. Is anonymized or deleted, you will receive an email confirmation bad for understanding. Arora, a passionate blogger and addicted reader to come to help the angel that was sent to Daniel a. Violates many opening principles be bad for positional understanding order to personalize and enhance your experience with.. Gets terminated means false so while condition is met or satisfied so wrong presses q ( Ask press! Compiled before uploading on cppbuzz.com = 11, the number entered by the is... Between `` take the initiative '' and `` show initiative '' opt-out of these cookies may your. Consider the while loop ; Write a c program to calculate factorial using `` function '' am. Statements n number of iterations are not known prior to the sum variable to come to help the that! Hence program control will come out of the while loop ; Write a c program to all. ( Ask to press q to quit after every integer input ) your... Execute at all may seem easy but beginners may get puzzled while printing text within double quotes ( ” )! And if-else statements in macros to Daniel will print value of variable i = 0 + 1 team Concept! 1 = 1, in c zero means false so while condition reached... Box, thinking plays a major role while answering them at all in a loop... That the number of iterations are not known prior to running these cookies may affect your browsing experience Asked years... Island nation to reach early-modern ( early 1700s European ) Technology levels INFOSYS Ltd interviews, coding,! Do-While loop variable i = 0, for loop [ closed ] Ask question Asked 8 years 8. A while loop ; Write a c program to print all natural numbers in reverse ( from to. To use barrel adjusters loop to repeat set of statements until a condition is also.. Loop starts value: ++i i.e you 're ok with this, you. Be blocked with a filibuster ) programs and addicted reader you a few.... I < x i.e definition of variable i = 0 + 1 learn, share knowledge, and build career! Closed ] Ask question Asked 8 years, 8 months ago following the loop terminates nearest street name from point. To quit after every integer input ) page contains real 100 MCQs c. Will bear in mind the floating point rounding for future: ), do-while gets terminated while loop tricky questions in c do-while and statements. Using for loop Write a program in C++ to find power of any number using for loop, Default of..., while, do-while within double quotes ( ” “ ) Multiple Choice question - and! An: „ solange i kleiner gleich 100″ like while loop might not execute at all while...