Average and median.

main.cpp

@@ -1,68 +1,61 @@
 #include <iostream>
-#include <string_view>
+#include <vector>
+#include <algorithm>
+#include <iomanip>
 
 using string = std::string;
-using stringv = std::string_view;
 
-void printm(stringv);
-void printlm(stringv);
-int prompti(stringv);
-string prompts(stringv);
-string promptm(stringv*, int);
-
-int main() {
-  bool run {true};
-  while (run){
-    int input { prompti(promptm(new stringv[] {
-      "Enter an option:",
-      "0) Say hello.",
-      "*) Exit."}, 3)) };
-    if (input == 0)
-      printlm("Hello.");
-    else{
-      printlm("Bye!");
-      run = false;
-    }
-  }
-  return 0;
-}
-
-void printm(stringv m){
+//Placw in header!
+template <typename T>
+void printm(T m){
   std::cout << m;
 }
 
-void printlm(stringv m){
+template <typename T>
+void printlm(T m){
   printm(m);
   printm("\n");
 }
 
-int prompti(stringv message) {
-  int tr {};
+double promptd(string,bool*);
+
+int main() {
+  std::setprecision(3);
+  printlm("Calculate median and average from sequence:");
+  std::vector<double> v{};
+  bool s {};
+  do {
+    auto d = promptd("Enter a number (Enter non-number to complete entry) : ",&s);
+    if (s) v.push_back(d);
+  }
+  while(s);
+  sort(v.begin(), v.end());
+  printm("The count is: ");
+  printlm(v.size());
+  printm("The median is: ");
+  int halfway {static_cast<int>(v.size()) / 2};
+  if (static_cast<int>(v.size())%2 == 1)
+    printlm(v.at(halfway));
+  else
+    printlm((v.at(halfway - 1) + v.at(halfway)) / 2.0);
+  double avg {};
+  for (int i = 0; i < static_cast<int>(v.size()); ++i) avg += v.at(i);
+  avg /= static_cast<int>(v.size());
+  printm("The average is: ");
+  printlm(avg);
+  return 0;
+}
+
+double promptd(string message, bool *status) {
+  double tr {};
+  *status = false;
   std::cout << message;
   if (!(std::cin >> tr)){
     std::cin.clear();
     std::cin.ignore();
-    return -1;
+    return 0;
   }
+  *status = true;
   return tr;
 }
 
-string prompt(stringv message) {
-  string toret {""};
-  std::cout << message;
-  if (!(std::cin >> toret)){
-    std::cin.clear();
-    std::cin.ignore();
-    return "";
-  }
-  return toret;
-}
-
-string promptm(stringv msgs[], int l) {
-  string tr {""};
-  for (int i = 0; i < l; i++) {
-    tr.append(msgs[i]);
-    tr.append("\n");
-  }
-  return tr;
-}