ProgramGuruTo remove a specific item from a set in C++, you can use the erase method to delete the item from the set.
In this example,
numberSet using the std::set container from the C++ Standard Library, which contains integer values 1, 2, 3, 4, and 5.erase method of numberSet to remove the item 3 from the set.numberSet to see the removed item.#include <iostream>
#include <set>
int main() {
std::set<int> numberSet = {1, 2, 3, 4, 5};
numberSet.erase(3);
for (int num : numberSet) {
std::cout << num << " ";
}
return 0;
}1 2 4 5
In this example,
stringSet using the std::set container from the C++ Standard Library, which contains string values 'apple', 'banana', 'cherry', 'date', and 'grape'.erase method of stringSet to remove the item 'cherry' from the set.stringSet to see the removed item.#include <iostream>
#include <set>
#include <string>
int main() {
std::set<std::string> stringSet = {"apple", "banana", "cherry", "date", "grape"};
stringSet.erase("cherry");
for (const std::string& str : stringSet) {
std::cout << str << " ";
}
return 0;
}apple banana date grape
In this tutorial, we learned How to Remove Specific Item from a Set in C++ language with well detailed examples.