Printf within Printf

Hello friends today I am sharing new concept of printf within printf.

In this concept one printf demonstrating an other printf.

Rule :Inner printf returns Length of string printed on screen to the outer printf

Printf inside printf in C : Example

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#include<stdio.h>
#include<conio.h>
void main()
{
int num=1342;
clrscr();
printf("%d",printf("%d",printf("%d",num)));
getch();
}

Output :

134241

Know How ?

1. Firstly Inner printf is executed which results in printing 1324 
2. This Printf Returns total number of Digits i.e  4 and second inner printf will looks like

3. printf("%d",printf("%d",4));

4. It prints 4 and Returns the total number of digits i.e 1 (4 is single digit number )

5. printf("%d",1);

6. It prints simply 1 and output will looks like 132441