Добавить task5.cpp

Task4.cpp

@@ -1,32 +0,0 @@
-#include <iostream>
-#include <fstream>
-
-using namespace std;
-
-int main() {
-    ifstream fin("..\\MyFile\\info.txt");
-
-    if (!fin) {
-        cout << "Error: open input file!!\n";
-        system("pause");
-        return 1;
-    }
-
-    char s[100];
-    char a;
-    int count = 0;
-
-    cout << "Enter the character:";
-    cin >> a;
-
-    while (fin >> s) {
-        if (tolower(s[0]) == tolower(a)) {
-            count++;
-        }
-    }
-
-    cout << "Number of words starting with '" << a << "': " << count << endl;
-
-    fin.close();
-    system("pause");
-}

task4.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+using namespace std;
+
+int* removeNeg(int* a, int n, int& newN) {
+    int* b = new int[n];
+    int k = 0;
+    for (int i = 0; i < n; i++)
+        if (a[i] >= 0) b[k++] = a[i];
+    newN = k;
+    int* c = new int[k];
+    for (int i = 0; i < k; i++) c[i] = b[i];
+    delete[] b;
+    return c;
+}
+
+int main() {
+    srand(time(0));
+    int n = 10;
+    int* a = new int[n];
+    for (int i = 0; i < n; i++) {
+        a[i] = rand() % 21 - 10;
+        cout << a[i] << " ";
+    }
+    cout << endl;
+    int newN;
+    int* b = removeNeg(a, n, newN);
+    cout << "New array: ";
+    for (int i = 0; i < newN; i++)
+        cout << b[i] << " ";
+    cout << endl;
+    delete[] a;
+    delete[] b;
+    return 0;
+} 

task5.cpp

@@ -0,0 +1,52 @@
+#include <iostream>
+using namespace std;
+
+void addBlock(int*& a, int& n, const int* b, int m) {
+    int* temp = new int[n + m];
+
+    for (int i = 0; i < n; i++) {
+        temp[i] = a[i];
+    }
+
+    for (int i = 0; i < m; i++) {
+        temp[n + i] = b[i];
+    }
+
+    delete[] a;
+
+    a = temp;
+
+    n = n + m;
+}
+
+int main() {
+    srand(time(0));
+
+    int n = 7, m = 4;
+    int* a = new int[n];
+    int* b = new int[m];
+
+    cout << "A: ";
+    for (int i = 0; i < n; i++) {
+        a[i] = rand() % 30;
+        cout << a[i] << (i < n - 1 ? " " : "");
+    }
+
+    cout << endl << "B: ";
+    for (int i = 0; i < m; i++) {
+        b[i] = rand() % 30;
+        cout << b[i] << (i < m - 1 ? " " : "");
+    }
+
+    addBlock(a, n, b, m);
+
+    cout << endl << "Result: ";
+    for (int i = 0; i < n; i++) {
+        cout << a[i] << (i < n - 1 ? " " : "");
+    }
+    cout << endl;
+
+    delete[] a;
+    delete[] b;
+    return 0;
+}