added

C/README.md

@@ -37,4 +37,8 @@
 | Program-33 | Program on Arithematic operation using pointers  |
 | Program-34 | Program to determine whether the matrix is a triangular matrix. First, you will be given N, which is the size of the matrix. Then you will be given N rows of integers, where each row consists of N integers separated by spaces. If the input matrix is triangular, then print yes. Otherwise, print no. |
 | Program-35 | Program where you are given a sequence of non-negative integers terminated by -1. You have to output 1 if there are atleast 2 distinct elements in the sequence and 0 if the sequence consists of only 1 integer. Note that -1 is not part of the sequence. The sequence is not necessarily sorted. |
+| Program-36 | Program to output the number of distinct elements in the sorted sequence |
+| Program-37 | Program to find the fibonacci sequnce using recursion |
+| Program-38 | Program to find the factorial of a number using recursion |
+| Program-39 | Program to find the GCD of a number using recursion |
 

C/program-36/program.c

@@ -0,0 +1,29 @@
+/*
+
+You are given a sorted (either in the increasing or in the decreasing order) sequence of numbers, ending with a -1. You can assume that are at least two numbers before the ending -1. 
+
+Let us call the sequence x0  x1 ... xn -1.
+
+You have to output the number of distinct elements in the sorted sequence.
+
+Kindly do not use arrays in the code. 
+
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    int count=0,n=0,m;
+   while(n!=-1)
+   {
+   scanf("%d",&n);
+    if(m!=n) count++;
+    else continue;
+    m=n;
+
+   }
+printf("%d",count-1);
+    return 0;
+}

C/program-37/program.c

@@ -0,0 +1,32 @@
+/*
+Program to find the fibonacci sequnce
+*/
+
+#include<stdio.h>
+#include<stdlib.h>
+
+int fib(int n)
+{
+int f;
+
+    if(n==0 || n==1)
+    {
+
+         return ;
+    }
+    else
+    {
+        f=fib(n-2)+fib(n-1);
+    }
+
+
+}
+
+int main()
+{
+    int n;
+    printf("Enter the number of terms\n");
+    scanf("%d",&n);
+    printf("Fibonacci series=%d \n",fib(n));
+    return 0;
+}

C/program-38/program.c

@@ -0,0 +1,32 @@
+/*
+Program to find the factorial of a number using recursion
+*/
+
+#include<stdio.h>
+#include<stdlib.h>
+
+int fact(int n)
+{
+int f;
+
+    if( n==1)
+    {
+
+         return ;
+    }
+    else
+    {
+        f=n*fact(n-1);
+    }
+
+
+}
+
+int main()
+{
+    int n;
+    printf("Enter the number \n");
+    scanf("%d",&n);
+    printf("Factorial of a number =% d \n",fact(n));
+    return 0;
+}

C/program-39/program.c

@@ -0,0 +1,32 @@
+/*
+Program to find the GCD of a number using recursion
+*/
+
+#include<stdio.h>
+#include<stdlib.h>
+
+int gcd(int a,int b)
+{
+int f;
+
+    if( b!=0)
+    {
+
+         return gcd(b,a%b);;
+    }
+    else
+    {
+       return;
+    }
+
+
+}
+
+int main()
+{
+    int a,b;
+    printf("Enter the two numbers\n");
+    scanf("%d%d",&a,&b);
+    printf("GCD of %d & %d is = %d \n",a,b,gcd(a,b));
+    return 0;
+}