diff --git a/0x10/1.cpp b/0x10/1.cpp
new file mode 100644
index 0000000..8762c23
--- /dev/null
+++ b/0x10/1.cpp
@@ -0,0 +1,38 @@
+// 41
+class MinStack
+{
+public:
+    /** initialize your data structure here. */
+    int a[105], tot = 0;
+    MinStack()
+    {
+    }
+    void push(int x)
+    {
+        a[++tot] = x;
+    }
+    void pop()
+    {
+        tot--;
+    }
+    int top()
+    {
+        return a[tot];
+    }
+    int getMin()
+    {
+        int ans = 1e9;
+        for (int i = tot; i >= 1; i--)
+            ans = (a[i] < ans) ? a[i] : ans;
+        return ans;
+    }
+};
+
+/**
+ * Your MinStack object will be instantiated and called as such:
+ * MinStack obj = new MinStack();
+ * obj.push(x);
+ * obj.pop();
+ * int param_3 = obj.top();
+ * int param_4 = obj.getMin();
+ */
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