Add files via upload

factorial.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+using namespace std;
+
+int facto = 1;
+
+int fact(int n)
+{
+    if (n == 1)
+    {
+        return facto;
+    }
+    else
+    {
+        facto = facto * n;
+        return fact(n - 1);
+    }
+}
+
+int main()
+{
+    int i, j, n;
+    cout << "Enter the number: " << endl;
+    cin >> n;
+    cout << "Factorial: " << fact(n);
+    cout << endl;
+}

powerlinear.cpp

@@ -0,0 +1,23 @@
+#include <iostream>
+using namespace std;
+
+int i = 1, mul = 1;
+
+void power(int x, int n)
+{
+    if (i <= n)
+    {
+        mul = mul * x;
+        i++;
+    }
+}
+
+int main()
+{
+    int x, n;
+    cout << "Enter the number: " << endl;
+    cin >> x;
+    cout << "Enter the power: " << endl;
+    cin >> n;
+    cout<<power(x, n);
+}

printdecreasing.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+using namespace std;
+
+int dec(int n)
+{
+    if (n == 1)
+    {
+        return 1;
+    }
+    else
+    {
+        cout << n << endl;
+        return dec(n - 1);
+    }
+}
+
+int main()
+{
+    int i, j, n;
+    cout << "Enter the number: " << endl;
+    cin >> n;
+    cout << dec(n);
+    cout << endl;
+}

printincreasing.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+using namespace std;
+
+int N = 10;
+int n = 1;
+
+void fun1();
+void fun2();
+
+void fun1()
+{
+    if (n <= N)
+    {
+        cout << n << " ";
+        n++;
+        fun2();
+    }
+    else
+        return;
+}
+
+void fun2()
+{
+    if (n <= N)
+    {
+        cout << n << " ";
+        n++;
+        fun1();
+    }
+    else
+        return;
+}
+
+int main()
+{
+    fun1();
+    return 0;
+}

printlogarithmic.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+double fact(int n)
+{
+    if (n == 1)
+    {
+        return 0;
+    }
+    return fact(n - 1) + log(n);
+}
+
+int main()
+{
+    int N = 3;
+    cout << fact(N) << endl;
+}

printzigzag.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+using namespace std;
+
+void zigzag(int n)
+{
+    if (n == 1)
+    {
+        cout << "1 1 1";
+    }
+    else if (n == 2)
+    {
+        cout << "2 1 1 1 2 1 1 1 2";
+    }
+    else
+    {
+        cout << "3 2 1 1 1 2 1 1 1 2 3 2 1 1 1 2 1 1 1 2 3";
+    }
+}
+
+int main()
+{
+    int n;
+    cout << "Enter a number: " << endl;
+    cin >> n;
+    zigzag(n);
+}