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What is the difference between the following 2 C codes?<br><pre><code class="c-program">#include &lt;stdio.h&gt; //Program 1int main(){ int d, a = 1, b = 2; d = a++ + ++b; printf("%d %d %d", d, a, b);}</code></pre><br><pre><code class="c-program">#include &lt;stdio.h&gt; //Program 2int main(){ int d, a = 1, b = 2; d = a++ +++b; printf("%d %d %d", d, a, b);}</code></pre>

Correct Answer: Program 2 has syntax error, program 1 is not

Comment on the following 2 C programs.
#include <stdio.h> //Program 1int main(){ int a; int b; int c;}#include <stdio.h> //Program 2int main(){ int a; { int b; } { int c; }}

What is the difference between the following 2 codes?
#include <stdio.h> //Program 2int main(){ int d, a = 1, b = 2; d = a++ +++b; printf("%d %d %d", d, a, b);}

What is the output of this program ? #include
using namespace std;
int n(char, int);
int (*p) (char, int) = n;
int main()
{
(*p)('d', 9);
p(10, 9);
return 0;
}
int n(char c, int i)
{
cout << c << i;
return 0;
}

Which of the following is an external variable in the following C code?
#include <stdio.h>int func (int a){ int b; return b;}int main(){ int c; func (c);}int d;

What will be the final values of i and j in the following C code?
#include <stdio.h>int x = 0;int f(){ if (x == 0) return x + 1; else return x - 1;}int g(){ return x++;}int main(){ int i = (f() + g()) | g(); //bitwise or int j = g() | (f() + g()); //bitwise or}

What will be the final values of i and j in the following C code?
#include <stdio.h>int x = 0;int f(){ if (x == 0) return x + 1; else return x - 1;}int g(){ return x++;}int main(){ int i = (f() + g()) || g(); int j = g() || (f() + g());}

What will happens if the statement free(a) is removed in the following C code?
#include<stdio.h>#include<stdlib.h>main(){ int *a; a=(int*)malloc(sizeof(int)); *a=100; printf("*a%d",*a); free(a); a=(int*)malloc(sizeof(int)); *a=200; printf("a%p",a); *a=200; printf("a%d",*a);}

What is the correct syntax of declaring array of pointers of integers of size 10 in C++? ; b) int **arr = new int*; c) int *arr = new int; d) int *arr = new int*;

Which two classes use the Shape class correctly?
A. public class Circle implements Shape { private int radius; }B. public abstract class Circle extends Shape { private int radius; }C. public class Circle extends Shape { private int radius; public void draw(); }D. public abstract class Circle implements Shape { private int radius; public void draw(); }E. public class Circle extends Shape { private int radius; public void draw() { /* code here */ } }F. public abstract class Circle implements Shape { private int radius; public void draw() { /* code here */ } }

Calculate the % of memory saved when bit-fields are used for the following C structure as compared to with-out use of bit-fields for the same structure? (Assuming size of int = 4)
struct temp{ int a : 1; int b : 2; int c : 4; int d : 4;}s;