What would be the equivalent pointer expression for referring the array element

What would be the equivalent pointer expression for referring the array element a[i][j][k][l]

((((a+i)+j)+k)+l)

*(*(*(*(a+i)+j)+k)+l)

(((a+i)+j)+k+l)

((a+i)+j+k+l)

Answer : B

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1) The operator used to get value at address stored in a pointer variable is

2) What will be the output of the program ?

 #include<stdio.h>
 int main()
 {
     char str[20] = "Hello";
     char *const p=str;
     *p='M';
     printf("%s\n", str);
     return 0;
 }

Mello

Hello

HMello

MHello

3) A pointer is

A keyword used to create variables

A variable that stores address of an instruction

A variable that stores address of other variable

All of the above

4) Which of the following does not initialize ptr to null (assuming variable declaration of a as int a=0;)?

int *ptr = &a;

int *ptr = &a – &a;

int *ptr = a – a;

All of the mentioned

5) What will be the output of the following C code?

 #include <stdio.h>
 int main()
 {
    int i = 10;
    void *p = &i;
    printf("%f\n", *(float*)p);
    return 0;
 }

Compile time error

Undefined behaviour

10

0.000000