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 2 of 3.
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".
Venkatreddy said:
1 decade ago
I didn't understand why it returns 1. Although scanf reads 25?
Lavanya said:
1 decade ago
Why the o/p is -1 if we compile it?
Randy said:
1 decade ago
If you compile the code. Why the result is -1? :).
Amit said:
1 decade ago
Thanks Sundar.............
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.
Rockstar said:
1 decade ago
Thanks ritu it really hlped.
Satyam said:
1 decade ago
If we don't write the statement return than what will be the output?
Amarjit said:
1 decade ago
Excellent answer.
Rakesh said:
1 decade ago
I'm still confused. As 25 is given as input. Why it returns 1? explain.
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