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Computer Microsoft Word Difficulty: Medium

What will be the output of the following C++ code? #include <iostream> #include <vector> #include<iterator> using namespace std; int main () { vector<int> myvector; for (int i = 1; i <= 10; i++) myvector.push_back(i); myvector.erase (myvector.begin() + 6); myvector.erase (myvector.begin(), myvector.begin() + 4); for (unsigned i = 0; i < myvector.size(); ++i) cout << ' ' << myvector[i]; return 0; } If b is a dictionary, what does any(b) do? What method is used to insert an element at a specific index in a list or tuple? What will be the output of the given C++ code? #include <bits/stdc++.h> using namespace std; int main() { int arr[] = {1,3,4,2,5}; int n = sizeof(arr)/sizeof(arr[0]); sort(arr, arr+n, greater<int>()); int a; for (a = 0; a < n; a++) cout << arr[a] << " "; return 0; } In Data Science, what is the term for the process of reducing the dimensionality of a dataset while preserving information?