basic histogram of input word count

main.cpp

@@ -5,6 +5,7 @@
 #include <iomanip>
 
 using string = std::string;
+using wordcount = std::map<string,int>;
 
 //Place in header!
 template <typename T>
@@ -22,21 +23,25 @@ int prompti(string,bool*);
 double promptd(string,bool*);
 string prompts(string,bool*);
 double avg(std::list<double>*);
-void remdups(std::list<string>&);
+void countw(std::list<string>&, wordcount*);
+void histogram(int);
 
 int main() {
-  printlm("Remove duplicates for input:");
+  printlm("Get histogram of input:");
   bool s {};
   std::list<string> lst {};
   do {
     auto v = prompts("", &s);
     if (s) lst.push_back(v);
   } while (s);
-  printlm("Current data:");
-  for (const auto c : lst) printlm(c);
-  printlm("With Duplicates removed:");
-  remdups(lst);
-  for (const auto c : lst) printlm(c);
+  printlm("Histogram:");
+  wordcount wc {};
+  countw(lst,&wc);
+  for (const auto c : wc) {
+    printm(c.first);
+    printm(" ");
+    histogram(c.second);
+  }
   return 0;
 }
 
@@ -85,15 +90,12 @@ double avg(std::list<double> *values) {
   return sum / values->size();
 }
 
-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);
-    } else {
-      has[*itr] = true;
-      ++itr;
+void countw(std::list<string> &values, wordcount *holder) {
+  for (const auto &c : values) {
+    ++(*holder)[c];
   }
 }
+
+void histogram(int num) {
+  for (auto i = 1; i <= num; ++i) if (i == num) printlm("*"); else printm("*");
 }