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#include <algorithm>
#include <iostream>
#include <string>
#include <iterator>
#include <vector>
using namespace std;
using StrVect = vector<string>;
bool judge(string const &word)
{
return count(word.begin(), word.end(), 'a') > 1;
}
void show(auto const &begin, auto const &end)
{
copy(begin, end, ostream_iterator<string>(cout, ", "));
cout << "\n";
}
int main()
{
StrVect words =
{
"kilo", "alpha", "lima", "mike", "alpha", "november",
"alpha", "alpha", "alpha", "papa", "quebec"
};
auto src{ words };
cout << "Removing all \"alpha\"s:\n";
auto end = remove(src.begin(), src.end(), "alpha");
show(src.begin(), end);
cout << "Leftover elements are:\n";
show(end, src.end());
src = words;
cout << "Remove_copy_if removes words having > 1 'a' chars:\n";
StrVect kept;
remove_copy_if(src.begin(), src.end(), back_inserter(kept), judge);
show(kept.begin(), kept.end());
}
// Displays:
// Removing all "alpha"s:
// kilo, lima, mike, november, papa, quebec,
// Leftover elements are:
// alpha, alpha, alpha, , ,
// Remove_copy_if removes words having > 1 'a' chars:
// kilo, lima, mike, november, quebec,
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