Description : This method is used to know if a value exists in a set. If the given value is an element of set, the method returns true, otherwise it returns false.
Example :
//Run code to demonstrate use of set.contains()
#include <iostream>
#include <set>
int main() {
// Create a set with different integer values
std::set<int> mySet = {1, 2, 3, 4, -5};
// Check if the set contains the value 1
if (mySet.contains(1)) {
std::cout << "1 exists in mySet" << std::endl;
} else {
std::cout << "1 does not exist in mySet" << std::endl;
}
// Check if the set contains the value 12
if (mySet.contains(12)) {
std::cout << "12 exists in mySet" << std::endl;
} else {
std::cout << "12 does not exist in mySet" << std::endl;
}
return 0;
}