Ouput of the program part 2

 Q. What is the output of following program?

#include <iostream>
using namespace std;

// main() is where program execution begins.
int g,t;
float f,h;
int main()
{
   int a,b;
   float d,l;
cout<<"GLobal Int g="<<g<<endl;
cout<<"GLobal Int t="<<t<<endl;
cout<<"Local Int a="<<a<<endl;
cout<<"Local Int b="<<b<<endl;
cout<<"Local float d="<<d<<endl;
cout<<"Local float l="<<l<<endl;
cout<<"Global float f="<<f<<endl;
cout<<"Global float h="<<h<<endl;
   return 0;
}

Answer:-

GLobal Int g=0    //always 0 if global int 
GLobal Int t=0    //always 0 if global int 
Local Int a=0    //any garbage value if local and not assigned , in most case it can take 0 if only one int or one float
Local Int b=4196896   //any garbage value if local and not assigned 
Local float d=0  //any garbage value if local and not assigned 
Local float l=5.88211e-39   //any garbage value if local and not assigned 
Global float f=0    //always 0 if global float 
Global float h=0    //always 0 if global float 

Explanation :
Local variable is not defined by the system and need to be initialized. I not initialized then it can take any garbage value but the Global variables are initialized automatically by the system when we define them.