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Recursion Prog

Addition of 2 nos. #include &lt;stdio.h&gt; #include&lt;conio.h&gt; main() { int add(int pk,int pm); int k = 2; int i; int m = 3; clrscr(); i = add(k,m); printf(&quot;i = %d<br>&quot;,i); getch(); } int add(int addk,int addm){ if(addm==0) return(addk); else

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Recursion Prog

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  1. Addition of 2 nos #include <stdio.h> #include<conio.h> main() { int add(int pk,int pm); int k = 2; int i; int m = 3; clrscr(); i = add(k,m); printf("i = %d\n",i); getch(); } int add(int addk,int addm){ if(addm==0) return(addk); else return(1+add(addk,addm-1)); } Recursion Prog

  2. Power function #include<conio.h> #include <stdio.h> int main() { double power(double x, int n); double x = 0.0; int n = 0; clrscr(); printf("%lf",power(3,2)); getch(); } double power(double x, int n) { if(n == 0) return 1.0; else return x * power( x , n - 1 ); } Recursion Prog

  3. Even sum #include<conio.h> #include <stdio.h> void main() { int sum(int,int ); int total; total=sum(2,4); clrscr(); printf("%d",total); getch(); } int sum(inti,int n){ static int even=0; if(i<=n){ even=even+i; sum(i+2,n); //calling same function } return even; } Recursion Prog

  4. Reverse String #include<string.h> void reverse(char [],int b); void main() { char a[26]; intlen; clrscr(); printf("enter string "); Scanf(“%s”,a); len=strlen(a); reverse(a,len); getch(); } void reverse(char a[],int len) { if(len==0) printf("%c",a[len]); else { printf("%c",a[len]); reverse(a,len-1); } } Recursion Prog

  5. Reverse Number #include<conio.h> #include <stdio.h> int sum=0,r; void main() { int reverse(int); intnum,rev; clrscr(); printf("\nEnter a number :"); scanf("%d",&num); rev=reverse(num); printf("\nAfter reverse the no is :%d",rev); getch(); } Int reverse(int num) { if(num>0) { r=num%10; sum=sum*10+r; reverse(num/10); } else{ return sum; } return sum; } Recursion Prog

  6. Fibnocci Series void main() { long term(int); inti,n; clrscr(); printf(“Enter Limit”); scanf("%d",&n); printf("\nThe Series is :”); for(i=1;i<=n;i++) { printf(" %ld ",term(i)); } getch(); } long term(int n) { if(n==1) return(0); else if(n==2||n==3) return 1; else return(term(n-1)+term(n-2)); return 0; } Recursion Prog

  7. Print Pattern main() { int i,n; void pat(int); clrscr(); for(i=1;i<=10;i++) { pat(i); } getch(); } void pat(int n) { if(n<1) printf("\n"); else { printf("%d ",n); n=n-1; mult(n); } } Recursion Prog

  8. Print Nos in Descentingordre main() { int i,n; void de(int); clrscr(); de(20); getch(); } void de(int n) { if(n==0) return(0); else { printf("\n %d",n); de(n-1); } } Recursion Prog

  9. Print EVEN Nos in Descentingordre main() { int i,n; void de(int); clrscr(); de(20); getch(); } void de(int n) { if(n==0) return(0); else { printf("\n %d",n); de(n-2); } } Recursion Prog

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