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Author: AdityaSeth777

19 - Interfaces/Solution.cpp

@@ -0,0 +1,27 @@
+#include <iostream>
+
+using namespace std;
+
+class AdvancedArithmetic {
+public:
+    virtual int divisorSum(int n)=0;
+};
+
+class Calculator : public AdvancedArithmetic {
+public:
+    int divisorSum(int n) {
+        int sum = 0;
+        for (int i = 1; i <= n; i++)
+            if (n % i == 0) sum += i;
+        return sum;
+    }
+};
+//Aditya Seth
+int main() {
+    int n;
+    cin >> n;
+    AdvancedArithmetic *myCalculator = new Calculator();
+    int sum = myCalculator->divisorSum(n);
+    cout << "I implemented: AdvancedArithmetic\n" << sum;
+    return 0;
+}

19 - Interfaces/Solution.kt

@@ -0,0 +1,24 @@
+internal interface AdvancedArithmetic {
+    fun divisorSum(n: Int): Int
+}
+
+internal class Calculator : AdvancedArithmetic {
+    override fun divisorSum(n: Int): Int {
+        var sum = 0
+        for (i in 1..n) {
+            if (n % i == 0) sum += i
+        }
+        return sum
+    }
+}
+
+fun main(args: Array<String>) {
+    val scan = Scanner(System.`in`)
+    val n = scan.nextInt()
+    scan.close()
+
+    val myCalculator = Calculator()
+    val sum = myCalculator.divisorSum(n)
+    println("I implemented: " + myCalculator.javaClass.interfaces[0].name)
+    println(sum)
+}

19 - Interfaces/Solution.py

@@ -0,0 +1,20 @@
+class AdvancedArithmetic(object):
+    def divisorSum(n):
+        raise NotImplementedError
+
+
+class Calculator(AdvancedArithmetic):
+    def divisorSum(self, n):
+        s = 0
+        for i in range(1,n+1):
+            if (n%i == 0):
+                s+=i
+        return s
+
+
+n = int(input())
+#Aditya Seth
+myCalculator = Calculator()
+s = my_calculator.divisorSum(n)
+print("I implemented: " + type(my_calculator).__bases__[0].__name__)
+print(s)