Добавить Task4.cpp

Task4.cpp

@@ -0,0 +1,32 @@
+#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");
+}

task1.cpp

@@ -1,20 +0,0 @@
-#include <iostream>
-using namespace std;
-
-int main() {
-    int n;
-    cout << "Enter a four-digit number: ";
-    cin >> n;
-
-    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;
-    }
-    return 0;
-}

task2.cpp

@@ -1,39 +0,0 @@
-#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.cpp

@@ -1,55 +0,0 @@
-#include <iostream>
-#include <clocale>
-using namespace std;
-
-int main() {
-    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;
-
-    int l;
-    int t;
-    int s;
-
-    switch (c) {
-        case 1:
-            cout << "Enter the desired income ($): ";
-            cin >> s;
-            cout << "Enter the number of tardies: ";
-            cin >> t;
-            s += (t / 3) * 20;
-            l = (s / 50.0) * 100;
-            cout << "Vasyl needs to write " << l << " lines of code." << endl;
-            break;
-
-        case 2:
-            cout << "Enter the number of lines of code: ";
-            cin >> l;
-            cout << "Enter your desired salary ($): ";
-            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 << "Vasya will not be paid anything." << endl;
-            break;
-
-        default:
-            cout << "Invalid choice." << endl;
-    }
-    return 0;
-}

task4.cpp

@@ -1,19 +0,0 @@
-#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

@@ -1,35 +0,0 @@
-#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;
-
-}