c++ last element code example
Example 1: how to get last element of set in c++
set<int> s = {1,2,3}
auto it = s.end();
it--;
cout<<*it<<"\n"; // This refers to last element of a set
Example 2: c++ vector.back
#include <iostream>
#include <vector>
int main()
{
std::vector<int> myvector;
//add 2 to the back
myvector.push_back(2);
std::cout << myvector.back() << std::endl; //this will print 2
myvector.push_back(46);
std::cout << myvector.back() << std::endl; //prints 46
return 0;
}
/*Output
2
46
*/
Example 3: c++ last element of array
int arr[10];
int len = sizeof(arr) / sizeof(arr[0]);