C Programming - Input / Output - Discussion
Discussion Forum : Input / Output - Find Output of Program (Q.No. 13)
13.
What will be the output of the program if value 25 given to scanf()?
#include<stdio.h>
int main()
{
int i;
printf("%d\n", scanf("%d", &i));
return 0;
}
Answer: Option
Explanation:
The scanf function returns the number of input is given.
printf("%d\n", scanf("%d", &i)); The scanf function returns the value 1(one).
Therefore, the output of the program is '1'.
Discussion:
23 comments Page 1 of 3.
Sundar said:
1 decade ago
@Ritu
The scanf() function returns the count of number of input fields successfully scanned, converted, and stored.
Therefore, scanf("%d", &i) will return 1 because it reads one input from the user.
If we use a scanf() statement like scanf("%d %d", &intRollNo, &intAge), it will return 2, because it reads two input values.
Hope you understand this. Have a nice day!
The scanf() function returns the count of number of input fields successfully scanned, converted, and stored.
Therefore, scanf("%d", &i) will return 1 because it reads one input from the user.
If we use a scanf() statement like scanf("%d %d", &intRollNo, &intAge), it will return 2, because it reads two input values.
Hope you understand this. Have a nice day!
(1)
CHALLA SANTHOSH said:
9 months ago
The scanf keyword is used inside the printf.
So the scanf will do that it will take inputs but it will return how many inputs are taken.
So if there is only one integer it will return one if there is two inputs for the scanf it will return two.
So the scanf will do that it will take inputs but it will return how many inputs are taken.
So if there is only one integer it will return one if there is two inputs for the scanf it will return two.
(1)
Rakesh said:
1 decade ago
As scanf returns total number of input is given to it.
Try again it will return 1, as number of input is 1. Try also this,
int i;
i = printf ("rakesh") ;
printf("%d", i);
Output will be "rakesh6".
Try again it will return 1, as number of input is 1. Try also this,
int i;
i = printf ("rakesh") ;
printf("%d", i);
Output will be "rakesh6".
Ritu said:
1 decade ago
Why it returns one?
Shaikh Sahil said:
3 years ago
If scanf is given 25 then why it is returning 1?
Can anyone please explain me?
Can anyone please explain me?
Vjagtap said:
6 years ago
Then what is 25 ?
Rubini said:
6 years ago
What will be the output of the following statement?
print("%X%x%ci%x",11,10,'s',12); Please explain with answer.
print("%X%x%ci%x",11,10,'s',12); Please explain with answer.
Pranali said:
8 years ago
If scanf() returns number of inputs(I agree) but what about printf()?(what it will return)
Shubham said:
9 years ago
When I compiled this program it returns the value -1? Can anyone explain?
Vijay said:
9 years ago
But in GCC it is different.
It returns, how bytes are read?
Example int is 4.
It returns, how bytes are read?
Example int is 4.
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