C Programming - Input / Output - Discussion

Discussion Forum : Input / Output - Find Output of Program (Q.No. 13)

Input / Output

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.

Shubham said: 9 years ago

When I compiled this program it returns the value -1? Can anyone explain?

Rakesh said: 1 decade ago

I'm still confused. As 25 is given as input. Why it returns 1? explain.

Satyam said: 1 decade ago

If we don't write the statement return than what will be the output?

Venkatreddy said: 1 decade ago

I didn't understand why it returns 1. Although scanf reads 25?

Randy said: 1 decade ago

If you compile the code. Why the result is -1? :).

Ranjith karthick said: 1 decade ago

Am not get clarity please tell any one.

Lavanya said: 1 decade ago

Why the o/p is -1 if we compile it?

Rockstar said: 1 decade ago

Thanks ritu it really hlped.

Amit said: 1 decade ago

Thanks Sundar.............

Ritu said: 1 decade ago

Why it returns one?

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