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.
Ritu said:
2 decades ago
Why it returns one?
Sundar said:
2 decades 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)
Mani said:
1 decade ago
Thank you.
Rakesh said:
1 decade ago
I'm still confused. As 25 is given as input. Why it returns 1? explain.
Amarjit said:
1 decade ago
Excellent answer.
Satyam said:
1 decade ago
If we don't write the statement return than what will be the output?
Rockstar said:
1 decade ago
Thanks ritu it really hlped.
Ranjana said:
1 decade ago
The scanf() function returns that how many inputs are given by the as we see here one input is given so answer is 1.
Amit said:
1 decade ago
Thanks Sundar.............
Randy said:
1 decade ago
If you compile the code. Why the result is -1? :).
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