vector<int> arr = { 6, 3, 5, 2, 8 };<br /> vector<int>::iterator itr = std::find(arr.begin(), arr.end(), elem);</p> <p>if (itr != end(arr)) {<br /> cout << “Element ” << elem << ” is present at index ” << distance(arr, itr) << ” in the given array”;<br /> }<br /> else {<br /> cout << “Element is not present in the given array”;<br /> }

#include <iostream><br /> #include <vector><br /> #include <iterator><br /> #include <algorithm><br /> using namespace std;</p> <p>int main()<br /> {<br /> vector<int> v = {1,2,3,4,6,4,5};<br /> // Get index of element from iterator<br /> int index = distance(v.begin(), find(v.begin(), v.end(), 4));<br /> cout << index;<br /> }