diff --git a/Algorithms/Sliding window algorithm b/Algorithms/Sliding window algorithm
new file mode 100644
index 0000000..b84845e
--- /dev/null
+++ b/Algorithms/Sliding window algorithm	
@@ -0,0 +1,36 @@
+#include<stdio.h>
+ 
+int main()
+{
+    int w,i,f,frames[50];
+ 
+    printf("Enter window size: ");
+    scanf("%d",&w);
+ 
+    printf("\nEnter number of frames to transmit: ");
+    scanf("%d",&f);
+ 
+    printf("\nEnter %d frames: ",f);
+ 
+    for(i=1;i<=f;i++)
+        scanf("%d",&frames[i]);
+ 
+    printf("\nWith sliding window protocol the frames will be sent in the following manner (assuming no corruption of frames)\n\n");
+    printf("After sending %d frames at each stage sender waits for acknowledgement sent by the receiver\n\n",w);
+ 
+    for(i=1;i<=f;i++)
+    {
+        if(i%w==0)
+        {
+            printf("%d\n",frames[i]);
+            printf("Acknowledgement of above frames sent is received by sender\n\n");
+        }
+        else
+            printf("%d ",frames[i]);
+    }
+ 
+    if(f%w!=0)
+        printf("\nAcknowledgement of above frames sent is received by sender\n");
+ 
+    return 0;
+}
diff --git a/Algorithms/eucledian.c b/Algorithms/eucledian.c
new file mode 100644
index 0000000..129e3a5
--- /dev/null
+++ b/Algorithms/eucledian.c
@@ -0,0 +1,30 @@
+
+// Euclidean Algorithm 
+#include <stdio.h> 
+  
+// C function for extended Euclidean Algorithm 
+int gcdExtended(int a, int b, int *x, int *y) 
+{ 
+    // Base Case 
+    if (a == 0) 
+    { 
+        *x = 0; 
+        *y = 1; 
+        return b; 
+    } 
+  
+    int x1, y1; // To store results of recursive call 
+    int gcd = gcdExtended(b%a, a, &x1, &y1); 
+    *x = y1 - (b/a) * x1; 
+    *y = x1; 
+  
+    return gcd; 
+} 
+int main() 
+{ 
+    int x, y; 
+    int a = 35, b = 15; 
+    int g = gcdExtended(a, b, &x, &y); 
+    printf("gcd(%d, %d) = %d", a, b, g); 
+    return 0; 
+} 
diff --git a/contributors.md b/contributors.md
index 249a928..3a80c73 100644
--- a/contributors.md
+++ b/contributors.md
@@ -24,4 +24,4 @@
 21. [Ankit Bajaj](https://github.com/ankit10101)
 22. [Medha Sharma](https://github.com/medhasharma)
 23. [Pritish Thakkar](https://github.com/ma5terdrag0n)
-23. [Your Name](https://github.com/yourprofile)
\ No newline at end of file
+24. [Rohit Sekar](https://github.com/rohitsekar1996)