Which of the STL containers store the elements contiguously (in adjecent memory locations)?
std::vector
std::list
std::map
std::set
Correct Answer :
C. std::map
Related Questions
The value of an enumerated datatype can be read using scanf() function.
True
False
perror( ) function used to ?
Work same as printf()
prints the error message specified by the compiler
prints the garbage value assigned by the compiler
None of the above
The -------------------------- loop executes at least once.
for
while
do-while
while & do-while
Which of the following language is predecessor to C Programming Language?
A
B
BCPL
C++
What is Keywords?
Keywords have some predefine meanings and these meanings can be changed.
Keywords have some unknown meanings and these meanings cannot be changed.
Keywords have some predefine meanings and these meanings cannot be changed.
None of the above
The expression 'int j = 6 + 3 % -9;' evaluates to -1.
True
False
An array declared as A[100][100] can hold a maximum of 100 elements.
True
False
Only one break can be used in one loop.
True
False
char *s[10] defines an array of ------------------------
pointers to strings
string to pointer
both
The output of the following code is:
main()
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
Infinite loop
9
0
None
There are total ------ numbers of operators in 'C'.
35
45
55
40
unsigned' is a valid variable name.
True
False
Which among the following is a unconditional control structure
do-while
if-else
goto
for
The same variable names of automatic type can be used in different functions without any conflict.
True
False
All elements of a structure are allocated contiguous memory locations.
True
False
The output of the following code is:
void main()
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
B
b
bca
bc
C programs are converted into machine language with the help of
An Editor
A compiler
An operating system
None of the above
gets() and puts() are unformatted I/O functions.
True
False
&& and & operators have the same meaning.
True
False
The output of the following code is:
void main()
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
21 21
20 21
21 20
20 20
A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
struct stud
{
int roll;
char name[20];
float marks;
} *p;
What will be the byte size of p?
24
2
26
None
The expression "b = 3 ^ 2;" will evaluate b = 9.
True
False
Which of the following correctly describes C++ language?
Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language
A multidimensional array A[10][9] can store-------- number of elements
91
88
90
89
The output of the following code is:
main()
{
int k, num = 30;
k = (num > 5 ? (num <= 10 ? 100 : 200) : 500);
printf("
%d", num);
}
{
int k, num = 30;
k = (num > 5 ? (num <= 10 ? 100 : 200) : 500);
printf("
%d", num);
}
200
500
30
Unpredictable
Variables declared as register storage type gets stored in CPU registers.
True
False
the value *(&i) is same as printing the value of address of i.
True
False
Which escape character can be used to beep from speaker in C?
\a
\b
\m
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above