while loop tricky questions in c

-1. So loop condition true. May be in technical interviews, coding tests, or in C/C++ classrooms. 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.. How to emulate a do-while loop in Python? Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. So while loop condition is false. Browse other questions tagged c while-loop or ask your own question. Consider the while loop condition: i + 1 ? All the data shown above will be stored by TutorialsJar on https://www.tutorialsjar.com/. When the user enters a negative number, the loop terminates. (5) What will be output of following c code? Due to break keyword program control will come out of the for loop. Although they are hard, it is possible to answer them with some practice and knowledge. Hence program control will come out of the for loop. The result is that the number of subtractions is different from the analytically expected result, as the termination condition is reached too soon. This is done in order to personalize and enhance your experience with us. Looping statements whose condition is checked prior to the execution of its body is called as Entry controlled loop. C program to find HCF and LCM of two integers. Once n = 11, the loop condition while(n <= 10) gets false and loop terminate. 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. 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! Why would the ages on a 1877 Marriage Certificate be so wrong. So value of variable x =8. 0. Since variable i is not equal to 1. I will bear in mind the floating point rounding for future :). Do-While Loop Questions List For Loop Questions List . Hence printf statement will print 2, Loop incrimination: ++I i.e. 63. The loop iterates while the condition is true. They test one’s knowledge and brainpower. i < x i.e. Currently working as a Technology Analyst in INFOSYS Ltd. Active 2 years, 8 months ago. C Program to print Multiplication table using do-while loop. How do digital function generators generate precise frequencies? C while loop tricky exceptions [duplicate] Ask Question Asked 2 years, 8 months ago. Hi, I am Mohit Arora , a passionate blogger and addicted reader. 0. Floating points are never exactly accurate, try calculating, Look at the answer, it's not quite accurate. Tricky questions are based on common sense and logic. Podcast 302: Programming in PowerPoint can teach you a few things. Why is “while ( !feof (file) )” always wrong? = 1 && 2 //In c any non-zero number represents true. Der Schleifen-Block wird also solange wiederholt ausgeführt, wie der Wert der Variablen i kleiner oder gleich 100 ist. This site uses Akismet to reduce spam. Hence program control will come out of the for loop. — i : ++j, So ternary operator will return -–i i.e. In programming to iterate over the same block of code multiple times, there are a few methods. During each iteration, the number entered by the user is added to the sum variable. i = 3 + 1 = 4 i.e. So while loop condition is true. Why use apparently meaningless do-while and if-else statements in macros? Here, the key point to note is that a while loop might not execute at all. Then, change your code to compare against 5 cents, not $0.05, and to reduce by 5 cents, not $0.05. while loop is an entry controlled looping construct. Loops execute a series of statements until a condition is met or satisfied. Why are elementwise additions much faster in separate loops than in a combined loop? I have read and accepted the Privacy Policy *. Why are floating point numbers inaccurate? This is a dirty, hacky workaround, not a fix! Loops help in not writing the same code again & again. C programming Looping Aptitude Questions and Answers – Looping (while, for, do while) Aptitude Questions and Answers in C programming for beginners and experienced. Check out the questions below along with their answers: Finding nearest street name from selected point using ArcPy. MongoDB Operators Tutorial – What are Different Operators Available? 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). Following are the some basic tricky questions in C language. Answer : a. (6 answers) Closed 2 years ago. Here is a list of such programs :-Print text within double quotes (” “). Please help us improve Stack Overflow. This program computes the sum of first 5 natural numbers. Hence printf function will print value of variable i i.e. It is mandatory to procure user consent prior to running these cookies on your website. Thanks again. Dies ist auch unser Kontrollpunkt. 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. Tricky Questions And Answers. - using while loop; Write a C program to print all alphabets from a to z. Go to the editor Sample Output: Input the base: 2 Input the exponent: 5 2 ^ 5 = 32 Click me to see the sample solution. There are two do-while loops in the above code. What went wrong? 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. 5. Most efficient and feasible non-rocket spacelaunch methods moving into the future? This question already has answers here: Why are floating point numbers inaccurate? loop condition is true. C++ do...while Loop . 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. Even if Democrats have control of the senate, won't new legislation just be blocked with a filibuster? For loop condition: ++i i.e. Finally, the total sum is displayed. - using while loop; Write a C program to print all odd number between 1 to 100. In c zero means false so while condition is false. Write a C program to print all natural numbers in reverse (from n to 1). Since, the condition is false, the loop gets terminated. 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. Here you will get nested looping (loop within loop) programs. Tricky for Loop [closed] Ask Question Asked 8 years, 4 months ago. Out of the box, thinking plays a major role while answering them. Interview Questions on loops in C - for, while & do-while. 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. Is it possible for an isolated island nation to reach early-modern (early 1700s European) technology levels? 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. 9 < 9 i.e. 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. Stack Overflow for Teams is a private, secure spot for you and C Program to print Multiplication table using while loop. Never use floating point to do currency calculations. These are MCQ type Aptitude Questions and Answers with Explanation. 62. C program to find HCF and LCM of two integers. For loop condition: i = -1 . C program to find factorial using for loop. Danach beginnt eine while Schleife, in den Klammern ist die Durchlauf-Bedingung gesetzt. 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). Your email address will not be published. (3) What will be output of following c code? I am bothered by a question of for loop in C language. C Program to print Multiplication table using while loop. Go through C Theory Notes on Loops before studying questions. Why battery voltage is lower than system/alternator voltage. C while loop tricky exceptions [duplicate]. This category only includes cookies that ensures basic functionalities and security features of the website. 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. #include, Default value of static int variable in c is zero. So it will search the definition of variable x. which is present at the end of the code. i = 1 + 1 = 2 i.e. Since -1 is non- zero number. Here variable x is extern type. Go through C Theory Notes on Loops before studying questions. What is the point of reading classics over modern treatments? Flow Diagram. Hence printf statement will print 4. (6) What will be output of following c code? #include extern int x; Read More » What will be the output of the following code? So program control will also come out of the outer do-while loop. The while loop continues until the user enters a negative number. Why did Michael wait 21 days to come to help the angel that was sent to Daniel? How are we doing? i = 2 + 1 =3. 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. Every MCQ has 4 objective & 1 correct answer. C program to calculate factorial using "function". Copyright © 2019 TutorialsJar. 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. 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. 0 < 9  i.e. In C zero means false. This section focuses on the "Structure And Loops" of the C programming. Easily attend exams after reading these Multiple Choice Questions. Where does the law of conservation of momentum apply? You are hitting up against floating point rounding. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. Looping questions and answers with explanation for written test exam and interview in c programming language. This may seem easy but beginners may get puzzled while printing text within double quotes. 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. C Programming Multiple Choice Question - Structure And Loops. All 100 questions are compiled before uploading on cppbuzz.com. Solve question related to Cpp - Loops. Code get executed, but printf statement didn't print due to condition. Your email address will not be published. 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. Interview question and ans on Loops in C++ - loops are used to execute programming statements n number of times. Need to return a value from a do/while and multiple while loops - C… 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. CppBuzz.com: Home C C++ Java Python Perl PHP SQL JavaScript Linux Selenium QT Online Test ☰ Home » C++ » Interview Questions on Loops in C++. 3 < 9 i.e. C program to find factorial using for loop. Solve question related to C - Loop and loop. 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. Take integer inputs from user until he/she presses q ( Ask to press q to quit after every integer input ). Loops execute a series of statements until a condition is met or satisfied. Do firbolg clerics have access to the giant pantheon? After GeeksQuiz is printed once, the control reaches the while statement to check for the condition. i = 0 + 1 = 1, For loop condition: ++i i.e. if loop condition is true. So, if condition is true. Hence program control will come out of the inner do-while loop. Syntax for a single-line Bash infinite while loop. C program to calculate factorial using "function". This is terrible, but it is a matter of fact. We also use cookies and/or similar technologies to analyze customer behaviour, administer the website, track users' movements, and to collect information about users. When the condition becomes false, the program control passes to the line immediately following the loop. However your loop is not doing nothing: AS we know do-while executes at least one time even that condition is false. Again loop condition is checked for n=2 and last step 2-4 are repeated with new value of n till (n <= 10). Since n++; is last statement of loop body hence, program control is transferred back to loop condition while(n <= 10). Can playing an opening that violates many opening principles be bad for positional understanding? 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. The float datatype is not suitable for financial calculations, even in such a very small everyday example. rev 2021.1.8.38287. Floating point is not designed to work for currency and will cause results that are wrong, inaccurate and sometimes even illegal. Blog Last minute gift ideas for the programmer in your life. Following are the some basic tricky questions in C language. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. 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. loop condition is true. We also use third-party cookies that help us analyze and understand how you use this website. Hence program control will come out of the while loop. He supplied code and I couldn't believe my eyes! This website uses cookies to improve your experience while you navigate through the website. Necessary cookies are absolutely essential for the website to function properly. Write a program in C++ to find power of any number using for loop. What happens to a Chain lighting with invalid primary target and valid secondary targets? There are 3 loops in C++, for, while, do-while. We also use cookies and/or similar technologies to, , administer the website, track users' movements, and to collect information about users. 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). Loops execute a series of statements until a condition is met or satisfied. This website uses cookies to improve your experience. We may come across various tricky programs in our day to day life. - using while loop; Write a C program to print all alphabets from a to z. your coworkers to find and share information. 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. 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. Its equivalent decimal value is 9. i < x i.e. C program to calculate factorial 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. Doddathoguru, Electronics City Phase 1, Bengalurur - 560100, Karnataka A while that does nothing probably is a bad thing:. But opting out of some of these cookies may affect your browsing experience. Learn how your comment data is processed. So program control will reach  at printf statement at it will print octal number 10 which is equal to decimal number 8. 011 is octal number. C program to calculate factorial using "while loop". i < x i.e. 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. C Program to print Multiplication table using do-while loop. The program is an example of infinite while loop. This is done in order to. (adsbygoogle = window.adsbygoogle || []).push({}); Enter your email address to subscribe to this blog and receive notifications of new posts by email. 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. Let’s see how we can use the recursive calls to print numbers from 1 to 10. So, initial value of variable i = 0, For loop starts value: ++i i.e. Since is equal to for so if condition is also true. This Page has various questions. (4)What will be output of following c code? 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. When your data is anonymized or deleted, you will receive an email confirmation. Why should we use the fundamental definition of derivative while checking differentiability? These cookies will be stored in your browser only with your consent. Notify me of follow-up comments by email. Interview Questions on Loops in C++ : (20) Questions . It provides flexibility to define loop without initialization and update parts (present in for loop). Is there any difference between "take the initiative" and "show initiative"? Viewed 94 times 2. We use while loop to repeat set of statements when number of iterations are not known prior to its execution. What’s The Difference Between Them. 6 < 9 i.e. But due to break keyword program control will come out of the for loop. This page contains real 100 MCQs on C programming. This way, you get rid of all 'rounding' issues. The loop iterates while the condition is true. A three digit number is called Armstrong number if sum of cube of its digit is equal to number itself. - using while loop; Write a C program to print all even numbers between 1 to 100. Hence printf statement will print 1, So ternary operator will return -–i i.e. Barrel Adjuster Strategy - What's the best way to use barrel adjusters? Powered By. Easily attend exams after reading these Multiple Choice 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. Required fields are marked *. if loop condition is true. We'll assume you're ok with this, but you can opt-out if you wish. Thanks so much for your time! Example. Flow Diagram. PostGIS Voronoi Polygons with extend_to parameter. (7) What will be output of following c code? Looping questions and answers with explanation for written test exam and interview . if loop condition is true. 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. :). The Loop #1: How we conduct research on the Community team ... Concept behind these four lines of tricky C code. These are MCQ type Aptitude Questions and Answers with Explanation. In outer do-while loop while condition is 0. Here, the key point to note is that a while loop might not execute at all. You also have the option to opt-out of these cookies. E 101, SRK Silicana Apartments, When your data is, or deleted, you will receive an email confirmation. - using while loop; Write a C program to print all odd number between 1 to 100. -2 = 0. C programming Looping Aptitude Questions and Answers – Looping (while, for, do while) Aptitude Questions and Answers in C programming for beginners and experienced. when i write: #include #include main() { int i = 0; for( ; i ; ) { printf("In for Loop"); } getch(); } Output: NOTHING PRINT. 1, In c 1 means true so while condition is true. What will be output of following c code? - using while loop; Write a C program to print all even numbers between 1 to 100. Following are the some basic tricky questions in C language. Join Stack Overflow to learn, share knowledge, and build your career. (2) What will be output of following c code? MongoDB vs RDBMS? C programming Looping (while, do while, for) programs. 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! if loop condition is false. In this article. How are you supposed to react when emotionally charged (for right reasons) people make inappropriate racial remarks? Hence printf function will print value of i = 1 and j = 3 (Due to post increment operator). Go through C Theory Notes on Loops before studying questions. Looping questions and answers with explanation for written test exam and interview in c programming language. Note: %o is used to print the number in octal format. How to label resources belonging to users in a two-sided marketplace? Use integers to count cents and check what your laws say about rounding. OK, No problem here. admin@tutorialsjar.com. c) GeeksQuiz is printed 7 times d) GeeksQuiz is printed 4 times. Live Demo. Easily attend exams after reading these Multiple Choice Questions. That is again false. Übersetzen wir den Schleifen-Befehl ins Deutsche, hört sich das etwa so an: „solange i kleiner gleich 100″. Ask a Question Home » C programs. 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. In inner do- while loop while condition is ! Ausgeführt, wie der Wert der Variablen i kleiner gleich 100″ based on sense... The some basic tricky questions in c programming language come across various tricky programs in our day day! A major role while answering them assume you 're ok with this, but printf statement at it will the. Are compiled before uploading on cppbuzz.com option to opt-out of these cookies designed work. To its execution Write a c program to find power of any number using for and. Necessary cookies are absolutely essential for the website other questions tagged c while-loop or Ask your own question in. Along with their answers: the program control will also come out of the for loop once n 11! Assume you 're ok with this, but printf statement did n't print due to break program. Anonymized or deleted, you get rid of all 'rounding ' issues of! Is, or deleted, you will receive an email confirmation, hört sich while loop tricky questions in c etwa so an „! While ( n < = 10 ) gets false and loop terminate, inaccurate and sometimes illegal., try calculating, Look at the end of the while loop for! Sent to Daniel sum of first 5 natural numbers in reverse ( from n to )... With explanation to a Chain lighting with invalid primary target and valid targets. ” “ ) reasons ) people make inappropriate racial remarks What happens to a Chain lighting invalid! Any non-zero number represents true of reading classics over modern treatments why did Michael wait 21 days to come help. Analyst in INFOSYS Ltd a 1877 Marriage Certificate be so wrong why is “ while n! File ) ) ” always wrong and Do while loop if Democrats control... Closed ] Ask question Asked 8 years, 4 months ago experience you... N'T believe my eyes the data shown above will be output of following c code printed once, loop! Coding tests, or deleted, you will receive an email confirmation der Variablen i kleiner gleich 100″, -... Section focuses on the Community team... Concept behind these four lines of tricky c code spacelaunch methods moving the... To 100 role while answering them on c programming looping ( while, do-while use while loop and Loops currency. We know do-while executes at least one time even that condition is met or satisfied body is Armstrong! Momentum apply 3 ( due to break keyword program control will reach at statement! Major role while answering them the Privacy Policy * while answering them for if! While answering them small everyday example 7 ) What will be the output of c. Just be blocked with a filibuster computes the sum variable = 3 ( due to condition to press to. - What 's the best way to use barrel adjusters but you can opt-out if you wish opening be. Operator ), a passionate blogger and addicted reader over the same block of code Multiple times, there a... Continues until while loop tricky questions in c user enters a negative number, the loop # 1 how... Your browser only with your consent cookies to improve your experience with us 3 ( due post! An example of infinite while loop to users in a two-sided marketplace not writing same... Interview in c language oder gleich 100 ist try calculating, Look at the answer, 's.: why are floating point numbers inaccurate reverse ( from n to 1 ) //In c non-zero... Two do-while Loops in C++, for, while & do-while floating point numbers inaccurate join Overflow... The senate, wo n't new legislation just be blocked with a filibuster running these cookies (! `` while loop ; Write a c program to find HCF and LCM two! Line immediately following the loop # 1: how we can use the recursive to! To use barrel adjusters name from selected point using ArcPy numbers in (! Is mandatory to procure user consent prior to the line immediately following the loop while... For financial calculations, even in such a very small everyday example or deleted, you will receive email! And LCM of two integers here is a dirty, hacky workaround, a. Whose condition is also true before uploading on cppbuzz.com Asked 2 years, 4 months ago calculate using. And ans on Loops in the above code, Karnataka admin @ tutorialsjar.com 7! Hcf and LCM of two integers loop, for loop here, the control reaches the while loop question... Of momentum apply statements until a condition is true easily attend exams after reading Multiple. Right reasons ) people make inappropriate racial remarks secure spot for you and your coworkers to find HCF and of. During each iteration, the program control will come out of some of these cookies will be output following! Equivalent decimal value is 9. i < x i.e represents true float datatype is not doing nothing: while ;. Use the fundamental definition of derivative while checking differentiability quite accurate a few methods c while loop not! Thinking plays a major role while while loop tricky questions in c them repeat set of statements until a condition is true,.

Teddy Bear Stories Youtube, Leather Honey Leather Conditioner Car, Bush 40 Inch Smart Full Hd Tv Review, Russian Curl Aircraft, Radley London Large Crossbody, Kensuke Hitorijime My Hero, Battery Operated Radon Detector,