What is an algorithm?

July 5, 2021 in C and CPP

What is an algorithm?

c) What is an algorithm? Develop an algorithm to test whether a given number is a prime
number.

July 5, 2021 in C and CPP

Enumerate features of a good ‘C’ program.

b) Enumerate features of a good ‘C’ program. Describe the commonly used techniques as
to how ‘C’ programs can be made highly readable and modifiable.

July 5, 2021 in C and CPP

What are logical, syntactic and execution errors?

a) What are logical, syntactic and execution errors? Give examples of each. Which is most
difficult to find and why?

July 5, 2021 in C and CPP

Develop a flowchart and then write a program to compute the roots of a quadratic equation

b) Develop a flowchart and then write a program to compute the roots of a quadratic
equation A*X^2 + B*X + C = 0. Allow the possibility that (B^2 – 4*A*C) <= 0.

July 5, 2021 in C and CPP

What are the commonly used input functions in ‘C’?

a) What are the commonly used input functions in ‘C’? Write their syntax and explain the
purpose of each.

July 5, 2021 in C and CPP

Formatted I/O can be produced with the routine(s)

A. integer array B. pointers C. program
D. printf( ) and scanf( ) E. character array F. &&
G. function H. Main I. getw( )
J. reference, value K. static L. for
M. extern N. ternary O. register
P. putw( ) Q. main( )

4.1 Formatted I/O can be produced with the routine(s) ________.
4.2 The ________statement is used to loop as long as a specified condition is met.
4.3 To create a string variable, me must declare a(n) ________ with enough elements to
contain the entire string.
4.4 Call by ________ is more efficient than call by file.
4.5 exit( ) function is used to terminate the ________.
4.6 The only operator that contains three operands is ________ operator.
4.7 The declaration ________ does not allocate storage space for variable.
4.8 The function ________ reads an integer from a file.
4.9 All buffers are cleared when a ________ closed.
4.10 Preprocessor directives are placed in the source program before the function ________.

July 5, 2021 in C and CPP

Scalar data types are not supported by ‘C’ language.

Each statement below is either TRUE or FALSE.

2.1 Scalar data types are not supported by ‘C’ language.
2.2 ‘C’ language allows arrays of any dimensions.
2.3 A structure cannot be read as a single entity.
2.4 The associativity of operator ! is from left to right. .
2.5 J++ executes faster than J+1 because ++ is faster than +.
2.6 Two structures cannot be compared automatically.
2.7 The code "a[i] = i++;" is valid and will execute.
2.8 Arrays automatically allocate space when declared.
2.9 sizeof(‘a’) is not 1.
2.10 Float value can be added to a pointer.

July 5, 2021 in C and CPP

Size of the following union (assume size of int=2; size of float=4 and size of char = 1)

1.10 Size of the following union (assume size of int=2; size of float=4 and size of char = 1):
union Jabb
{
int a;
float b;
char c;
};
A) 2
B) 4
C) 1
D) 7

July 5, 2021 in C and CPP

Output of the following program will be:

1.9 Output of the following program will be:
main( )
{
int a [ ] = {1, 2, 9, 8, 6, 3, 5, 7, 8, 9};
int *p = a+1;
int *q = a+6;
printf (“\n%d”, q-p);
}
A) 9
B) 5
C) 2
D) None of the above

July 5, 2021 in C and CPP

The CONTINUE statement cannot be used with

1.8 The CONTINUE statement cannot be used with
A) for
B) switch
C) do
D) while