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1sem/programming basics/z8/22.cpp

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+// pb_z8_22.cpp
+// Горбацевич Андрей
+#include <iostream>
+using namespace std;
+
+const int al = 100;
+
+int min(int a, int b) {
+    return (a < b? a : b);
+}
+
+void print_array(int *arr, int len)
+{
+    for (int i = 0; i < min(al, len); i++) {
+        cout << *(arr + i) << " ";
+    }
+    cout << endl;
+}
+
+int main()
+{
+    int count;
+    cout << "count >>>";
+    cin >> count;
+    int *a = new int[al];
+    for (int i = 0; i < al; i++)
+    {
+        *(a + i) = rand() % 100 + 1;
+    }
+    print_array(a, count);
+}

1sem/programming basics/z8/23.cpp

@@ -0,0 +1,31 @@
+// pb_z8_23.cpp
+// Горбацевич Андрей
+#include <iostream>
+using namespace std;
+
+int count_equal(const int *arr, int len, int x)
+{
+    int count = 0;
+    for (int i = 0; i < len; i++)
+    {
+        count += *(arr + i) == x;
+    }
+    return count;
+}
+
+int main()
+{
+    int n, x;
+    cout << "n >>>";
+    cin >>n;
+    int *a = new int[n];
+    for (int i = 0; i < n; i++)
+    {
+        cout << "a[" << i << "] >>>";
+        cin >> *(a + i);
+    }
+    cout << "x >>>";
+    cin >> x;
+    cout << "count of `" << x << "`: " << count_equal(a, n, x);
+    delete[] a;
+}

1sem/programming basics/z8/24.cpp

@@ -0,0 +1,43 @@
+// pb_z8_24.cpp
+// Горбацевич Андрей
+#include <iostream>
+using namespace std;
+
+int splice_array(const int *arr1, const int *arr2, int len, int *arr_out)
+{
+    int out = 0;
+    for (int i=0; i<len; i++)
+    {
+        *(arr_out + i*2) = *(arr1 + i);
+        *(arr_out + i*2+1) = *(arr2 + i);
+        out += 2;
+    }
+    return out;
+}
+
+int main()
+{
+    int n;
+    cout << "n >>>";
+    cin >> n;
+    int *a1 = new int[n];
+    for (int i = 0; i < n; i++)
+    {
+        cout << "a1[" << i << "] >>>";
+        cin >> *(a1 + i);
+    }
+
+    int *a2 = new int[n];
+    for (int i = 0; i < n; i++)
+    {
+        cout << "a2[" << i << "] >>>";
+        cin >> *(a2 + i);
+    }
+    int *a = new int[n * 2];
+    int l = splice_array(a1, a2, n, a);
+    cout << "length " << l << endl;
+    for (int i = 0; i < l; i++) {
+        cout << *(a + i) << " ";
+    }
+    delete[] a, a1, a2;
+}