first comm in cpp

4/digitSum.cpp

@@ -1,4 +1,4 @@
-#include <stdio.h>
+#include <iostream>
 
 int calculate_iter(int n)
 {

4/sphenic_recur.cpp

@@ -1,6 +1,7 @@
-#include <stdio.h>
-#include <stdbool.h>
-
+#include <iostream>
+#include <string>
+#include "../1/sphenic.hpp"
+using std::string;
 bool _sphenic(int num, int cnt, int pr)
 {
     // Base case: If we have already found 3 distinct primes, check if the number is fully divided.
@@ -40,14 +41,14 @@ bool rsphenic(int n)
 int main()
 {
     int N = 200;
-
+    string str;
     for (int i = 1; i < N; i++)
     {
         // printf("%d\n", i);
 
         if (rsphenic(i))
-            printf("%d ", i);
-    }
-
+            str += std::to_string(i) + " ";
+    };
+    std::cout << str << std::endl;
     return 0;
 }