C/C++ Programming Chapter 3

A procedure for solving a problem in terms of the actions to be executed and the order in which the actions should be executed is called a(n) ____

• Algorithm

• Flowchart

• Sequence

• Psudocode

Specifying the execution order of statements by the computer is called ____

• Algorithm

• block

• while

• Program control

All programs can be written in terms of three types of control statements: [1], [2]

and [3].

• Sequence, selection, iteration

• Sequence, selection, if

• Sequence, block, iteration

• Sequence, selection, sentinel

The [___] selection statement is used to execute one action when a condition is true and another action when that condition is false.

• if…else

• while

• do...while

• function

Several statements grouped together in braces ({ and }) are called a(n) ___.

• Compound statement

• block

• Compound statement or block

• Algorithm

The ___ iteration statement specifies that a statement or group of statements is to be executed repeatedly while some condition remains true.

• if...else

• else

• while

• if

Find the output of the given C program.

• abd

• cd

• Compile time error

• ab

Answer explanation

Only printf(“a”); is inside if block and if block ended. printf(“b”); is outside of if block. After that else part is started but the compiler doesn’t find if block for the else block, So it gives error: ‘else’ without a previous ‘if’. In C language, else part for if statement is optional. We can write a C program without else when we use if statement, But if block is compulsory for else block. We can’t write any else statement without if block.

Find the output of the given C program.

• abd

• ab

• cd

• Compile time error

Answer explanation

The condition is -5 (other than zero) so, condition becomes true. Now, due to {} printf(“a”); and printf(“b”); are inside if block. Only, printf(“c”); is inside else block so, it is skipped, and next line printf(“c”); executed.

Find the output of the given C program.

• abd

• Compile time error

• ab

• cd

Find the output of the given C program.

• abd

• Compile time error

• ab

• cd

Answer explanation

Compile-time error; There is a semicolon after if, so if block ended and there is no any if block for else part. Hence error: ‘else’ without a previous ‘if’