Recursion Function

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Recursion Function

/*Recursion Function*/ #include<stdio.h>#include<conio.h>void main() { int n,r; clrscr(); int fact(int n); printf("Enter the No."); scanf("%d",&n); r = fact(n); printf("%d",r); getch(); } int fact(int n) { int f; if(n==1) return (1); else f = n * fact (n-1); return(f); }

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Function with argument and return value

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Function with argument and return value

/*Function with argument and return value*/ #include<stdio.h>#include<conio.h>void main() { int a,b,c; int Sum(int,int); clrscr(); c = Sum(a,b); printf("Sum=%d", c); getch(); } int Sum(int x,int y) { int z; s = x + y; return (z); }

Output is as:

Enter the Two No. for Sum :
10
10
Sum= 20

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Function with no argument and return value

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Function with no argument and return value

/*Function with no argument and return value*/ #include<stdio.h>#include<conio.h>void main() { int c; int Sum(); clrscr(); c = Sum(); printf("Sum=%d", c); getch(); } int Sum() { int a,b,s; printf("\n Enter the Two No. for Sum :\n"); scanf("%d%d",&a,&b); s = c + b; return (s); }

Output is as:

Enter the Two No. for Sum :
10
10
Sum= 20

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Function with argument and no return value

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Function with argument and no return value

/*Function with argument and no return value*/ #include<stdio.h>#include<conio.h>void main() { int a,b; clrscr(); Sum(int,int); printf("\n Enter the Two No. for Sum :\n"); scanf("%d%d",&a,&b); Sum(a,b); getch(); } Sum(int x,int y) { int sum; sum= x + y; printf("Sum=%d", sum); }

Output is as:

Enter the Two No. for Sum :
10
10
Sum= 20

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Function with no argument and no return value.

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C Functions

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Function with no argument and no return value

/*Function with no argument and no return value*/ #include<stdio.h>#include<conio.h>void main() { clrscr(); Sum(); Sum(); getch(); } Sum() { int a,b,c; printf("\n Enter the Two No. for Sum :\n"); scanf("%d%d",&a,&b); c= a +b; printf("Sum=%d", c); }

Output is as:

Enter the Two No. for Sum :
10
10
Sum= 20

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Program to print a line of text by using the function

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A Simple Function

#include<stdio.h>#include<conio.h>void main() { clrscr(); fun(); printf("\n I am a Good Boy \n"); fun(); getch(); } fun() { return; }

Output

I am a Good Boy

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