remove duplicates of input string words

main.cpp

@@ -1,6 +1,7 @@
 #include <iostream>
 #include <list>
 #include <vector>
+#include <map>
 #include <iomanip>
 
 using string = std::string;
@@ -19,21 +20,22 @@ void printlm(T m){
 
 int prompti(string,bool*);
 double promptd(string,bool*);
-double avgitr(std::list<double>*);
-double avgfor(std::list<double>*);
-void delzrfrst(std::list<double>&);
-
+string prompts(string,bool*);
+double avg(std::list<double>*);
+void remdups(std::list<string>&);
 
 int main() {
-  printlm("Remove first zero from:");
+  printlm("Remove duplicates for input:");
   bool s {};
-  std::list<double> lst {};
+  std::list<string> lst {};
   do {
-    auto v = promptd("Enter a double value: ", &s);
+    auto v = prompts("", &s);
     if (s) lst.push_back(v);
   } while (s);
-  printlm("First zero removed:");
-  delzrfrst(lst);
+  printlm("Current data:");
+  for (const auto c : lst) printlm(c);
+  printlm("With Duplicates removed:");
+  remdups(lst);
   for (const auto c : lst) printlm(c);
   return 0;
 }
@@ -64,23 +66,34 @@ double promptd(string message, bool *status) {
   return tr;
 }
 
-double avgitr(std::list<double> *values) {
-  double sum {};
-  for (auto itr = values->cbegin(); itr != values->cend(); ++itr) sum += *itr;
-  return sum / values->size();
+string prompts(string message, bool *status) {
+  string tr {""};
+  *status = false;
+  std::cout << message;
+  if (!(std::cin >> tr)){
+    std::cin.clear();
+    std::cin.ignore();
+    return "";
+  }
+  *status = true;
+  return tr;
 }
 
-double avgfor(std::list<double> *values) {
+double avg(std::list<double> *values) {
   double sum {};
   for (const auto c : *values) sum += c;
   return sum / values->size();
 }
 
-void delzrfrst(std::list<double> &values) {
-  for (auto itr {values.cbegin()}; itr != values.cend(); ++itr) {
-    if (*itr == 0) {
+void remdups(std::list<string> &values) {
+  std::map<string,bool> has {};
+  auto itr {values.cbegin()};
+  while (itr != values.cend()) {
+    if (has[*itr]) {
       itr = values.erase(itr);
-      break;
+    } else {
+      has[*itr] = true;
+      ++itr;
     }
   }
 }