diff --git a/square root perfectly working code.cpp b/square root perfectly working code.cpp
new file mode 100644
index 0000000..7b7cab0
--- /dev/null
+++ b/square root perfectly working code.cpp	
@@ -0,0 +1,52 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+float squareRoot(int number, int precision)
+{
+    int start = 0, end = number;
+    int mid;
+ 
+    float ans;
+ 
+  
+    while (start <= end) {
+        mid = (start + end) / 2;
+        if (mid * mid == number) {
+            ans = mid;
+            break;
+        }
+ 
+
+        if (mid * mid < number) {
+            start = mid + 1;
+            ans = mid;
+        }
+ 
+
+        else {
+            end = mid - 1;
+        }
+    }
+ 
+
+    float increment = 0.1;
+    for (int i = 0; i < precision; i++) {
+        while (ans * ans <= number) {
+            ans += increment;
+        }
+ 
+        ans = ans - increment;
+        increment = increment / 10;
+    }
+    return ans;
+}
+ 
+int main()
+{
+    int a,b;
+    cin>>a>>b;
+    cout << squareRoot(a, b) << endl;
+ 
+ 
+    return 0;
+}