diff --git a/1346_Check_If_N_and_Its_Double_Exist.cpp b/1346_Check_If_N_and_Its_Double_Exist.cpp
new file mode 100644
index 0000000..54803fd
--- /dev/null
+++ b/1346_Check_If_N_and_Its_Double_Exist.cpp
@@ -0,0 +1,30 @@
+// ███████╗  █████╗  ███╗   ██╗ ██████╗   █████╗  ██████╗  ██████╗  ██╗  ██╗
+// ██╔════╝ ██╔══██╗ ████╗  ██║ ██╔══██╗ ██╔══██╗ ██╔══██╗ ██╔══██╗ ██║  ██║
+// ███████╗ ███████║ ██╔██╗ ██║ ██║  ██║ ███████║ ██████╔╝ ██████╔╝ ███████║
+// ╚════██║ ██╔══██║ ██║╚██╗██║ ██║  ██║ ██╔══██║ ██╔═██╗  ██╔══██╗ ██╔══██║
+// ███████║ ██║  ██║ ██║ ╚████║ ██████╔╝ ██║  ██║ ██║  ██╗ ██████╔╝ ██║  ██║
+// ╚══════╝ ╚═╝  ╚═╝ ╚═╝  ╚═══╝ ╚═════╝  ╚═╝  ╚═╝ ╚═╝  ╚═╝ ╚═════╝  ╚═╝  ╚═╝
+#pragma GCC optimize("Ofast", "inline", "ffast-math", "unroll-loops","no-stack-protector")
+#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native", "f16c")
+auto init = []() {
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+    cout.tie(nullptr);
+    return 'c';
+}();
+class Solution {
+public:
+    bool checkIfExist(vector<int>& arr) {
+        int n = arr.size();
+        for(int i=0; i<n ; i++){
+            for(int j=0; j<n; j++){
+                if(i==j){
+                }
+                else if(arr[i] == 2*arr[j]){
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+};