delete pics to save space

2.11925.cpp

@@ -0,0 +1,43 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+deque<int> a;
+vector<int> res;
+
+bool is_order()
+{
+	for (int i = 1; i != a.size(); ++i)
+		if (a[i] < a[i-1])
+			return false;
+	return true;
+}
+int main()
+{
+	int n;
+	while (a.clear(),res.clear(),cin>>n, n)
+	{
+		for (int i = 0; i < n; ++i)
+		{
+			int t; cin >> t; a.push_back(t);
+		}
+		while(!is_order())
+		{
+			if (a[0]>a[1] && a[0]!=n)
+			{
+				swap(a[0], a[1]);
+				res.push_back(1);
+			}
+			else
+			{
+				int t = a.back();
+				a.pop_back();
+				a.push_front(t);
+				res.push_back(2);
+			}
+		}
+		for(auto it = res.rbegin(); it != res.rend(); ++it)
+            cout << *it;
+        cout << endl;
+	}
+	return 0;
+}