Moderate

What is the output of the following code?Cint x=10°;\[y=15\]\[x=x++:\] //10, 11\[y=++y\] //16printf("%d%d", \(x.y)\).

Correct answer: D. 11 16

  • A. 10
  • B. 15
  • C. 10 16
  • D. 11 16

Explanation

The correct option is (d) 11 16.Let's break down the code and analyze the errors:int x=10°: The degree symbol (°) is not a valid numeric literal in C. The code should use int x = 10; to assign the value 10 to the variable x.Missing semicolons: The lines \[y=15\] and \[x=x++:\] are missing semicolons at the end. In C, semicolons are required to terminate statements.Incorrect increment syntax: The syntax x=x++: is not a valid way to use the pre-increment operator in C. The correct way is ++x.Invalid printf format specifier: In the printf statement, %d%d is used to print two integers. However, there is no dot (.) separator between x and y. To print separate values, you need to use a comma (,) to separate them.Here's a corrected version of the code:Cint x = 10;int y = 15;x = ++x; // Pre-increment x to 11y = ++y; // Pre-increment y to 16printf("%d %d", x, y);.With these corrections, the code will output:11 16Explanation of the corrected code:int x = 10; int y = 15;: These lines declare and initialize the variables x and y.x = ++x;: This line uses the pre-increment operator to increment x by 1 before assigning its value. So, x becomes 11.y = ++y;: Similar to the previous line, y is incremented to 16 before assigning the value.printf("%d %d", x, y);: This line prints the values of x (which is 11) and y (which is 16) with a space between them.Now the code compiles and runs without errors, producing the expected output of 11 16.

Last updated

About Programming Basics

Programming basics covers algorithms, flowcharts, pseudocode, variables, constants, data types, operators, input and output, conditional statements and loops. It also introduces functions, arrays, strings, debugging and common programming errors, with attention to the difference between syntax errors, runtime errors and logical errors in a program.

Practise Programming Basics

183 free Programming Basics MCQs from Computer Science and IT, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Computer Science and IT questions like this

Computer Science and IT is on 40 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Computer Operator Test Computer Science and IT40 MCQsGAT Subject Computer Science and IT40 MCQsDEO Computer Science and IT35 MCQsNADRA Computer Science and IT30 MCQsJunior Clerk Test Computer Science and IT20 MCQsFBR Computer Science and IT10 MCQsHeadmaster and Headmistress Test Computer Science and IT10 MCQsLecturer Recruitment Test Computer Science and IT10 MCQsPatwari Test Computer Science and IT10 MCQsAJKPSC Computer Science and IT5 MCQsAssistant BS-16 Test Computer Science and IT5 MCQsBPSC Computer Science and IT5 MCQsECP Computer Science and IT5 MCQsEducators SST Test Computer Science and IT5 MCQsFIA Computer Science and IT5 MCQsFPSC Computer Science and IT5 MCQsGBPSC Computer Science and IT5 MCQsIB Computer Science and IT5 MCQsKPPSC Computer Science and IT5 MCQsMES Computer Science and IT5 MCQsNAB Computer Science and IT5 MCQsNational Highways and Motorway Police Test Computer Science and IT5 MCQsPakistan Railways Recruitment Test Computer Science and IT5 MCQsPCS Computer Science and IT5 MCQsPIA Computer Science and IT5 MCQsPPSC Computer Science and IT5 MCQsPunjab Police ASI Test Computer Science and IT5 MCQsPunjab Police Sub Inspector Test Computer Science and IT5 MCQsSNGPL Computer Science and IT5 MCQsSPSC Computer Science and IT5 MCQsWAPDA Computer Science and IT5 MCQsANF Computer Science and IT2 MCQsASF Computer Science and IT2 MCQsCTD Computer Science and IT2 MCQsElite Police Force Test Computer Science and IT2 MCQsPakistan Army Soldier Test Computer Science and IT2 MCQsPakistan Rangers Test Computer Science and IT2 MCQsPERA Force Test Computer Science and IT2 MCQsPunjab Police Constable Test Computer Science and IT2 MCQsRescue 1122 Test Computer Science and IT2 MCQs

Related questions