initial commit

C++/lesson3/task4.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+
+int main() {
+    int n;
+    std::cin >> n;
+    int a[n][n];
+
+    for (int i = 0; i < n; i++) {
+        for (int j = 0; j < n; j++) {
+            a[i][j] = i * j;
+            std::cout << a[i][j] << " ";
+        }
+        std::cout << "\n";
+    }
+
+    int s = 0;
+
+    for (int i = 0; i < n; i++) {
+        for (int j = 0; j < n; j++) {
+            s += a[i][j];
+        }
+        int avg = s / n;
+        std::cout << avg << "\n";
+        s = 0;
+    }
+}