consolidate all repos to one for archive

semester_2/programiranje_2/naloga0101/naloga0101.cpp

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+#include <iostream>
+
+using namespace std;
+
+int add(int number) {
+    int sum = 0;
+    while (number > 0) {
+        sum = sum + number % 10;
+        number = number / 10;
+    }
+    return sum;
+}
+
+void perfect_number(int number) {
+    int sum = 0;
+    for (int i = 1; i < number; i++) {
+        if (number % i == 0) {
+            sum = sum + i;
+        }
+    }
+    if (sum == number) {
+        cout << number << " is a perfect number";
+    } else {
+        cout << number << " is not a perfect number";
+    }
+}
+
+int main() {
+    int input_number;
+    for (;;) {
+        cout << "Input number: ";
+        cin >> input_number;
+        if (input_number > 0) break;
+    }
+
+    int sum = add(input_number);
+    cout << "Sum is " << sum << endl;
+    perfect_number(sum);
+
+    return 0;
+}
+
+// namesto while use for