diff --git a/medium/day_1/solution.cpp b/medium/day_1/solution.cpp
index 4763798..4762c32 100644
--- a/medium/day_1/solution.cpp
+++ b/medium/day_1/solution.cpp
@@ -1 +1,50 @@
-//Write your solution here
\ No newline at end of file
+//Write your solution here
+//Write your solution here  
+// CODE BY JAGPREET153
+
+#include <bits/stdc++.h>
+using namespace std;
+
+void add(vector<int>& v, int temp) {   // Function for adding the element inside the  vector
+    if (v.empty() ||v.back()<=temp) {  // if vector is empty or last element is less than the temp 
+        v.push_back(temp);
+        return;
+    }
+    int value = v[v.size()-1];
+    v.pop_back();
+    add(v, temp);
+    v.push_back(value);
+}
+
+void sorting(vector<int>& v) {
+    if (v.size() == 1)  // if vector size is 1
+    return;
+    int temp=v.back();  
+    v.pop_back();   // pop the last element
+    sorting(v);
+    add(v, temp);  // add the last element in the vector
+}
+
+// first we will sort the vector by popping the last element and then calling the sorting function again and again till the size of vector is 1
+// and then we will insert the last element in the vector after checking tha last element is greater than the temp or not
+int main() {   
+    int n,i,x,t;
+    cin>>t;
+    while(t--)
+    {       
+        cin >> n;
+        vector<int> v;  
+        for (i=0;i<n;i++) {  // Taking input in vector
+            cin>>x;
+            v.push_back(x);
+        }
+        sorting(v);  // Sorting the vector
+        for (int i=0;i<n;i++) {
+            cout<<v[i]<< " ";
+        }
+        cout<<endl;
+    }
+
+    return 0;
+}
+