[Init] Solved solutions

cpp/510A.cpp

@@ -0,0 +1,37 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n, m;
+    cin >> n >> m;
+    for (int i = 0; i < n ; i++)
+    {
+        switch (i%4)
+        {
+        case 1:
+            for (int i = 0; i < m - 1; i++)
+            {
+                cout << ".";
+            }
+            cout << "#" << endl;
+            break;
+        case 3:
+            cout << "#";
+            for (int i = 0; i < m - 1; i++)
+            {
+                cout << ".";
+            }
+            cout << endl;
+            break;
+        default:
+            for (int i = 0; i < m; i++)
+            {
+                cout << "#";
+            }
+            cout << endl;
+        }
+    }
+    return 0;
+}