diff --git a/DSA/euclidean gcd algo.cp b/DSA/euclidean gcd algo.cp
index 00ff611..d3e03bd 100644
--- a/DSA/euclidean gcd algo.cp	
+++ b/DSA/euclidean gcd algo.cp	
@@ -8,10 +8,21 @@
 using namespace std;
 #include<string.h>
 
-int main()
-{
-    //write code here
-    
-    
-    return 0;
-}
+    int gcd(int a, int b) 
+{ 
+    if (a == 0) 
+        return b; 
+    return gcd(b % a, a); 
+} 
+  
+// Driver program to test above function 
+int main() 
+{ 
+    int a = 10, b = 15; 
+    printf("GCD(%d, %d) = %d\n", a, b, gcd(a, b)); 
+    a = 35, b = 10; 
+    printf("GCD(%d, %d) = %d\n", a, b, gcd(a, b)); 
+    a = 31, b = 2; 
+    printf("GCD(%d, %d) = %d\n", a, b, gcd(a, b)); 
+    return 0; 
+}