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Introduction [cont'd]
Input Output Functions [cont'd]
Structures and Unions [cont'd]
# Preprocessor [cont'd]
Recursion in User-defined Functions of Programming in C
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Recursion 
A function calling same function inside itself, It is called as recursion.
Program
	#include
	int fact(int);
	void main(){
	   printf("%d",fact(5));
	}
	int fact(int n){
	   if (n == 1)
	   return 1;
	   else
	   return n * fact(n-1);
	}
Output 
120
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