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C Beginner 15 min

Data input in C

Test to practice reading data with scanf.

questions

30

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15:00:00

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C Beginner 15 min 30 preguntas

Data input in C

Test to practice reading data with scanf.

Pregunta 1

Which function is used to read data from the keyboard in C?

Opciones para Which function is used to read data from the keyboard in C?

Pregunta 2

Which specifier is used to read an integer?

Opciones para Which specifier is used to read an integer?

Pregunta 3

What prints if the user enters 5?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x);
Opciones para What prints if the user enters 5?

Pregunta 4

Which symbol is used to pass a memory address?

Opciones para Which symbol is used to pass a memory address?

Pregunta 5

Which specifier is used to read a float?

Opciones para Which specifier is used to read a float?

Pregunta 6

What prints if 4 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x+1);
Opciones para What prints if 4 is entered?

Pregunta 7

What does this code do?

Snippet c
int age;
scanf("%d",&age);
Opciones para What does this code do?

Pregunta 8

Which specifier is used to read a char?

Opciones para Which specifier is used to read a char?

Pregunta 9

What does printf do?

Opciones para What does printf do?

Pregunta 10

What prints if 6 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x*2);
Opciones para What prints if 6 is entered?

Pregunta 11

What allows reading two numbers?

Snippet c
scanf("%d %d",&a,&b);
Opciones para What allows reading two numbers?

Pregunta 12

What prints if 3 and 4 are entered?

Snippet c
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a+b);
Opciones para What prints if 3 and 4 are entered?

Pregunta 13

Which type is used for decimal numbers?

Opciones para Which type is used for decimal numbers?

Pregunta 14

What does this code do?

Snippet c
float x;
scanf("%f",&x);
Opciones para What does this code do?

Pregunta 15

What prints if 5 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x-2);
Opciones para What prints if 5 is entered?

Pregunta 16

What happens if & is missing in scanf?

Opciones para What happens if & is missing in scanf?

Pregunta 17

What prints if you enter 8?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x/2);
Opciones para What prints if you enter 8?

Pregunta 18

Which type is used for characters?

Opciones para Which type is used for characters?

Pregunta 19

What prints if 10 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x+5);
Opciones para What prints if 10 is entered?

Pregunta 20

What does scanf do?

Opciones para What does scanf do?

Pregunta 21

What prints if 4 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x*x);
Opciones para What prints if 4 is entered?

Pregunta 22

What prints if 9 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x-1);
Opciones para What prints if 9 is entered?

Pregunta 23

What does printf("%d",x) do?

Opciones para What does printf("%d",x) do?

Pregunta 24

What prints if 2 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x+10);
Opciones para What prints if 2 is entered?

Pregunta 25

What does scanf("%d",&x) do?

Opciones para What does scanf("%d",&x) do?

Pregunta 26

What prints if 3 is entered?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x*3);
Opciones para What prints if 3 is entered?

Pregunta 27

What does this code do?

Snippet c
char c;
scanf("%c",&c);
Opciones para What does this code do?

Pregunta 28

What prints if you enter 7?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x+2);
Opciones para What prints if you enter 7?

Pregunta 29

What prints if you enter 4?

Snippet c
int x;
scanf("%d",&x);
printf("%d",x*4);
Opciones para What prints if you enter 4?

Pregunta 30

What does scanf allow?

Opciones para What does scanf allow?

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