Printf MCQ 7 : printf(1+"%d");

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Printf Multiple Choice Questions  : printf(1+"%d");

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Question : Guess the output of Program

#include<stdio.h>
void main()
{
printf(1+"%d");
printf(1+"%c");
}

Options :

1. Garbage
2. dc
3. cd
4. %d%c

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Output :

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How and Why ?

1. Printf Returns the Length of String specified in Double Quotes
2. Consider first printf , Length of String specified in first printf i.e "%d" is 2
3. It starts printing the String Skipping the number of Characters specified before '+' sign
4. printf(1+"%d") skips "%" character and only prints 'd' as output.
5. Similarly printf(1+"PRITESH")  prints "RITESH" skipping first "P".
6. Similarly printf(2+"PRITESH")  prints "ITESH" skipping 2 characters "PR".

Note : 

1. Operation is similar as Substring Operation
2. While writing such Statement , Variable is not taken into Consideration .
3. Confused ?

#include<stdio.h>
void main()
{
int var=10;
printf(1+"%d",var);
}

4. Above statement also prints "d" as output. i.e Variable is Simply Neglected by Compiler.

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Tags / Keywords : | printf : MCQ

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