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Computer Tally Difficulty: Medium

In R, how is a matrix initialized with values 1 to 9 arranged in three rows? What will be the output of the following C++ code? Content of header file h1.h ------------------------------------------------ h1.h #include <iostream> using namespace std; namespace A{ int func(int a){ cout<<"using namespace A"; return 2*a; } } ------------------------------------------------ Content of header file h2.h ------------------------------------------------ h2.h #include <iostream> using namespace std; namespace B{ float func(float a){ cout<<"using namespace B"; return 2*a; } } ------------------------------------------------ Content of program.cpp ------------------------------------------------ #include <iostream> #include <string> #include "h1.h" #include "h2.h" using namespace std; using namespace A; using namespace B; int main(int argc, char const *argv[]) { /* code */ int a = 10; float b = 10.0; cout<<func(a)<<endl; cout<<func(b); return 0; } ----------------------------------------------- In binary tree sort, we first construct the BST and then we perform . . . . . . . . traversal to get the sorted order. What will be the output of the following Java code? class newthread extends Thread { Thread t; newthread() { t = new Thread(this,"New Thread"); t.start(); } public void run() { System.out.println(t.isAlive()); } } class multithreaded_programing { public static void main(String args[]) { new newthread(); } } What does the term "bias" refer to in model evaluation and validation?