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task1-2.0.cpp

@@ -1,67 +0,0 @@
-#include <iostream>
-
-using namespace std;
-
-void sortArr(int* a, int n) {
-    for (int i = 1; i < n; i++) {
-        int key = a[i];
-        int j = i - 1;
-        while (j >= 0 && a[j] > key) {
-            a[j + 1] = a[j];
-            j--;
-        }
-        a[j + 1] = key;
-    }
-}
-void RemovableLmR(int* a, int& n) {
-    if (n <= 2) {
-        n = 0;
-        return;
-    }
-
-    // Зсуваємо масив вліво, видаляємо перший
-    for (int i = 0; i < n - 1; i++) {
-        a[i] = a[i + 1];
-    }
-
-    // Просто зменшуємо розмір ще на один, прибираємо останній
-    n = n - 2;
-}
-
-void printArr(int* a, int n) {
-    if (n == 0) {
-        cout << "(empty)\n";
-        return;
-    }
-    for (int i = 0; i < n; i++) {
-        cout << a[i] << " ";
-    }
-    cout << "\n";
-}
-
-int main() {
-    srand(time(0));
-    int n;
-    cout << "Enter N: ";
-    cin >> n;
-
-    int* a = new int[n];
-
-    for (int i = 0; i < n; i++) {
-        a[i] = rand() % 101 - 50;
-    }
-
-    cout << "\nOriginal array:\n";
-    printArr(a, n);
-
-    sortArr(a, n);
-    cout << "\nSorted array:\n";
-    printArr(a, n);
-
-    RemovableLmR(a, n);
-    cout << "\nArray after removing first and last:\n";
-    printArr(a, n);
-
-    delete[] a;
-    return 0;
-}

task1.cpp

@@ -1,50 +1,20 @@
 #include <iostream>
 using namespace std;
 
-void sortArr(int* p, int n) {
-    for (int i = 0; i < n - 1; i++) {
-        for (int j = 0; j < n - i - 1; j++) {
-            if (p[j] > p[j + 1]) {
-                int t = p[j];
-                p[j] = p[j + 1];
-                p[j + 1] = t;
-            }
-        }
-    }
-}
-
-void printArr(int* p, int n) {
-    for (int i = 0; i < n; i++) {
-        cout << p[i] << " ";
-    }
-    cout << "\n";
-}
-
 int main() {
-    srand(time(0));
     int n;
-
-    cout << "Enter N: ";
+    cout << "Enter a four-digit number: ";
     cin >> n;
 
-    int* a = new int[n];
-
-    for (int i = 0; i < n; i++) {
-        a[i] = rand() % 101 - 50;
+    if (n < 1000 || n > 9999) {
+        cout << "Error! This is not a four-digit number." << endl;
+    } else {
+        int a = n / 1000;
+        int b = (n / 100) % 10;
+        int c = (n / 10) % 10;
+        int d = n % 10;
+        int r = c * 1000 + d * 100 + a * 10 + b;
+        cout << "Result: " << r << endl;
     }
-
-    cout << "\nOriginal array:\n";
-    printArr(a, n);
-
-    sortArr(a, n);
-
-    cout << "\nSorted array:\n";
-    printArr(a, n);
-
-    cout << "\nArray without first and last elements:\n";
-    printArr(a + 1, n - 2);
-
-    delete[] a;
     return 0;
-
 }

task2.cpp

@@ -0,0 +1,39 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    double ab;
+    double bc;
+    double weight;
+    cout << "Distance A-B: ";
+    cin >> ab;
+    cout << "Distance B-C: ";
+    cin >> bc;
+    cout << "Cargo weight: ";
+    cin >> weight;
+
+    double fuel;
+    if (weight <= 500) fuel = 1;
+    else if (weight <= 1000) fuel = 4;
+    else if (weight <= 1500) fuel = 7;
+    else if (weight <= 2000) fuel = 9;
+    else {
+        cout << "The airplane cannot lift such a load!" << endl;
+        return 0;
+    }
+
+    double nAB = ab * fuel;
+    double nBC = bc * fuel;
+
+    if (nAB > 300) {
+        cout << "It is impossible to reach point B by flight." << endl;
+    }
+    else if (nBC > 300) {
+        cout << "It is impossible to fly from B to C." << endl;
+    }
+    else {
+        double fill = max(0.0, nBC - (300 - nAB));
+        cout << "Minimum refuel at B: " << fill << " liters." << endl;
+    }
+    return 0;
+}

task3-2.0.cpp

@@ -1,85 +0,0 @@
-#include <iostream>
-using namespace std;
-
-int* Pos(int* a, int n, int& res_n) {
-    int* tmp = new int[3];
-    res_n = 0;
-    for (int i = 0; i < 3 && i < n; ++i)
-        if (a[i] > 0)
-            tmp[res_n++] = a[i];
-    int* res = new int[res_n];
-    for (int i = 0; i < res_n; ++i) res[i] = tmp[i];
-    delete[] tmp;
-    return res;
-}
-
-int* last3(int* a, int n, int& res_n) {
-    res_n = (n >= 3) ? 3 : n;
-    int* res = new int[res_n];
-    for (int i = 0; i < res_n; ++i)
-        res[i] = a[n - res_n + i];
-    return res;
-}
-
-int* min3(int* a, int n, int& res_n) {
-    int* tmp = new int[n];
-    for (int i = 0; i < n; ++i) tmp[i] = a[i];
-    for (int i = 0; i < n - 1; ++i)
-        for (int j = i + 1; j < n; ++j)
-            if (tmp[i] > tmp[j]) { int t = tmp[i]; tmp[i] = tmp[j]; tmp[j] = t; }
-    res_n = (n >= 3) ? 3 : n;
-    int* res = new int[res_n];
-    for (int i = 0; i < res_n; ++i) res[i] = tmp[i];
-    delete[] tmp;
-    return res;
-}
-
-typedef int* (*searchFunc)(int*, int, int&);
-
-void service(int* a, int n, searchFunc f) {
-    int res_n;
-    int* res = f(a, n, res_n);
-    cout << "Result: ";
-    for (int i = 0; i < res_n; ++i) cout << res[i] << " ";
-    cout << endl;
-    delete[] res;
-}
-
-int main() {
-    srand(time(NULL));
-    int n;
-    cout << "n(n>=3)= ";
-    cin >> n;
-    if (n < 3) {
-        cerr << "Error: size Array!!";
-        return 1;
-    }
-    int* arr = new int[n];
-    for (int i = 0; i < n; ++i)
-        arr[i] = rand() % 41 - 20;
-
-    cout << "Array: ";
-    for (int i = 0; i < n; ++i) cout << arr[i] << " ";
-    cout << endl;
-
-    searchFunc arrFunc[3] = { Pos, last3, min3 };
-
-    int choice;
-    do {
-        cout << "\nMenu:\n"
-            << "1) Array of the first 3 elements > 0\n"
-            << "2) Array of the last 3 elements\n"
-            << "3) Array of the 3 smallest elements\n"
-            << "4) Exit\n"
-            << "Select action (1-4): ";
-        cin >> choice;
-
-        if (choice >= 1 && choice <= 3)
-            service(arr, n, arrFunc[choice - 1]);
-        else if (choice != 4)
-            cout << "Incorrect choice!\n";
-    } while (choice != 4);
-
-    delete[] arr;
-    return 0;
-}

task3.cpp

@@ -1,70 +1,55 @@
 #include <iostream>
+#include <clocale>
 using namespace std;
 
-void Pos(int* a, int n) {
-    int count = 0;
-    for (int i = 0; i < 3 && i < n; ++i)
-        if (a[i] > 0) ++count;
-    cout << "The number of the first 3 elements > 0: " << count << endl;
-}
-
-void Show1(int* a, int n) {
-    cout << "The last 3 elements: ";
-    for (int i = (n >= 3 ? n - 3 : 0); i < n; ++i)
-        cout << a[i] << " ";
-    cout << endl;
-}
-
-void Show2(int* a, int n) {
-    int* b = new int[n];
-    for (int i = 0; i < n; ++i) b[i] = a[i];
-
-    for (int i = 0; i < n-1; ++i)
-        for (int j = i+1; j < n; ++j)
-            if (b[i] > b[j]) { int t = b[i]; b[i] = b[j]; b[j] = t; }
-    cout << "The three smallest elements: ";
-    for (int i = 0; i < 3 && i < n; ++i) cout << b[i] << " ";
-    cout << endl;
-    delete[] b;
-}
-
-typedef void (*searchFunc)(int*, int);
-
-void service(int* a, int n, searchFunc f) {
-    f(a, n);
-}
-
 int main() {
-    srand(time(NULL));
-    int n;
-    cout << "n(n>=3)= ";
-    cin >> n;
-    if (n < 3) {
-        cerr << "Error: size Array!!";
-        return 1;
-    }
-    int* arr = new int[n];
-    for (int i = 0; i < n; ++i)
-        arr[i] = rand() % 41 - 20;
+    int c;
+    cout << "Menu:" << endl;
+    cout << "1. Income and delays -> lines of code" << endl;
+    cout << "2. Lines of code and desired salary -> delay" << endl;
+    cout << "3. Lines of code and delays -> salary" << endl;
+    cin >> c;
 
-    cout << "Array: ";
-    for (int i = 0; i < n; ++i) cout << arr[i] << " ";
-    cout << endl;
+    int l;
+    int t;
+    int s;
 
-    searchFunc arrFunc[3] = { Pos, Show1, Show2 };
+    switch (c) {
+        case 1:
+            cout << "Enter the desired income ($): ";
+            cin >> s;
+            cout << "Enter the number of tardies: ";
+            cin >> t;
+            s += (t / 3) * 20;
+            l = (s / 50.0) * 100;
+            cout << "Vasyl needs to write " << l << " lines of code." << endl;
+            break;
 
-    cout << "Menu:\n"
-         << "1) The number of the first 3 elements > 0\n"
-         << "2) Show the last 3 items\n"
-         << "3) Display the 3 smallest elements\n"
-         << "Select an action (1-3): ";
-    int choice;
-    cin >> choice;
-    if (choice >= 1 && choice <= 3)
-        service(arr, n, arrFunc[choice-1]);
+        case 2:
+            cout << "Enter the number of lines of code: ";
+            cin >> l;
+            cout << "Enter your desired salary ($): ";
+            cin >> s;
+            int b;
+            b = (l / 100) * 50;
+            cout << "Vasya can be late at most "
+                 << ((b - s) / 20) * 3 << " time(s)." << endl;
+            break;
+
+        case 3:
+            cout << "Enter the number of lines of code: ";
+            cin >> l;
+            cout << "Enter the number of tardies: ";
+            cin >> t;
+            s = (l / 100) * 50 - (t / 3) * 20;
+            if (s > 0)
+                cout << "Vasyl's salary: " << s << " $" << endl;
             else
-        cout << "Incorrect choice!\n";
+                cout << "Vasya will not be paid anything." << endl;
+            break;
 
-    delete[] arr;
+        default:
+            cout << "Invalid choice." << endl;
+    }
     return 0;
 }

task4.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+#include <clocale>
+using namespace std;
+
+int main() {
+    int f;
+    cout << "Enter the finger number (1-5): ";
+    cin >> f;
+
+    switch (f) {
+        case 1: cout << "pollex" << endl; break;
+        case 2: cout << "index" << endl; break;
+        case 3: cout << "medius" << endl; break;
+        case 4: cout << "annularis" << endl; break;
+        case 5: cout << "digitus minimus" << endl; break;
+        default: cout << "Incorrect number!" << endl;
+    }
+    return 0;
+}

task5.cpp

@@ -0,0 +1,35 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    double a;
+    double b;
+    double c;
+    double x;
+    double y;
+
+    cout << "Enter the edges of the brick a, b, c: ";
+    cin >> a >> b >> c;
+    cout << "Enter the hole dimensions x, y: ";
+    cin >> x >> y;
+
+    double min1 = a, min2 = b;
+
+    if (c < min1) {
+        min2 = min1;
+        min1 = c;
+    }
+    else if (c < min2) {
+        min2 = c;
+    }
+
+    if ((min1 <= x && min2 <= y) || (min1 <= y && min2 <= x)) {
+        cout << "The brick will pass through the opening." << endl;
+    }
+    else {
+        cout << "The brick won't fit through the opening.." << endl;
+    }
+
+    return 0;
+
+}