400 Câu hỏi trắc nghiệm lập trình C/C++ có đáp án (Phần 2)

compare();

stringcompare();

cmp();

strcmp();

append();

stringadd();

strcat();

stradd();

stdio.h

conio.h

stdlib.h

ouput.h

scanf( )

printf( )

getch( )

>

<=

None above

The first statement of main( )

The first statement of program

The first statement after the comment /**/

The first statement of end function

Because they tell the complier that a function is declared later

Because they make program readable

Because they allow the programmer to see a quick list of function in the program along with the argument for each function.

All of the above

rem = 3.14%2.1;

rem = fmod(3.14, 2.1);

rem = modf(3.14, 2.1);

Remainder cannot be obtain in floating point division.

1

2

3

1 & 2 & 3

1

2

3

1 and 3

Declaration

Definition

A & B

Both are identical

No difference, except extern int fun( ); is probably in another file

int fun( ); is overrided with extern int fun( );

None of these

Extern int a is declaration, int a = 20 is the definition

Int a = 20 is declaration, extern int a is the definition

Int a = 20 is definition, a is not defined

a is declared, a is not defined

Internal and External

External, Internal and None

External and None

Internal

* (asterisk)

| (pipeline)

– (hyphen)

_ (underscore)

float

double

long double

far double

ceil(1.66)

floor(1.66)

roundup(1.66)

roundto(1.66)

Yes

No

True

False

True

False

True

False

True

False

Yes

No

True

False

ABCD

DCBA

0xABCD

Depend on big endian or little endian architecture.

float, double

short int, double, long int

float, double, long double

double, long int, float

1.000000 2.000000

1.500000 1.000000

2.000000 1.000000

1.300000 2.000000

math.h

stdlib.h

log.h

dos.h

use 3.14LD

use 3.14L

use 3.14DL

use 3.14LF

use float(3.14f)

use 3.14f

use f(3.14)

use (f)(3.14)

y = (int)(x + 0.5)

y = int(x + 0.5)

y = (int)x + 0.5

y = (int)((int)x + 0.5)

1.670000e+000, 1.670000, 1.67, 1.670000,

Complier Error

1.67e, 1.67000, 1.670, 1.67

1.67e, 1.67, 1.67000, 1.67f

LaptrinhC++

abc

Complier error

None of these

LaptrinhC++

abc

Complier error

None of these

True

False

100

Garbage value

Error

0

The element will be set to 0.

The complier would report an error.

The program may crash if some important data gets overwritten

The array size would appropriately grow

6.000000

6

Error

During editing

During linking

During execution

During preprocessing

8 4 8

4 4 8

4 8 10

4 8 12

True

False

1. KR Notation and 2. ANSI Notation

1. Pre ANSI C Notation and 2. KR Notation

1. ANSI Notation and 2. KR Notation

1. ANSI Notation and 2. Pre ANSI Notation

True

False

True

False

True

False

True

False

True

False

Infinite times

65535 times

Till stack overflows

Cannot call main( ) in main( )

True

False

Yes

No