A preprocessor directive in C begins with symbol

How many types of exception guarantees are there in C++?

What is the output of the following C code?

int main()

{

      printf("%d",sizeof(" "));

}

What is the output of the following C program?

#include<stdio.h>

void main()

{

   float x = 'c';

   printf("%f", x);

}

What is the problem in the following variable declaration?

          1:             float   2Abekus-PLAYER-Leader?;

Pick the right option.

Statement 1: A definition is also a declaration.
Statement 2: An identifier can be declared just once.

The difference between x and 'x' in a C++ program is:

Consider the following ANSI C program.

#include < stdio.h > int main( ) { int arr[4][5]; int i, j; for (i=0; i<4; i++) ​​​​​​{ for (j=0; j<5; j++) { arr[i][j] = 10 * i + j; } } printf("%d", *(arr[1]+9)); return 0; }

What is the output of the above program?

What happens when we use pass by reference

Consider the C code fragment given below.

typedef struct node { int data; node* next ; } node; void join(node* m, node* n) { node* p = n; while (p->next != NULL) { p = p->next; } p–>next = m; }

Assuming that m and n point to valid NULL- terminated linked lists, invocation of join will