Programming Output Evaluation

More than one global variable declaration is allowed. But you can initialise only one variable. Hence, output will be 8.

The value of ch is outside the range of char (-128 to +127). So, it goes to other the side and becomes 65. Hence, the ASCII value of 'A' = 65

The register variable stores in Central Processing Unit (CPU). So, y does not have any memory location. Hence, py=&y is not a valid statement.

Rch is a character variable and it occupies 1 byte. Rn is an integer variable and it occupies 2 bytes. Rr is a float variable and it occupies 4 bytes. Hence, the output will be 1 2 4. 

First printf() will print 7, then if condition gets true due to non-zero integer and t will decrement and main() call recursively. Again printf() will print 6, then if condition gets true due to non zero integer and t will decrement and main() call recursively and so on. If condition gets false, when value of t will be 0. Hence, output will be 76543210. (The static variable always retains its value)

The ASCII value of 'T' is 84. So, the value of T + 6 is 90. Hence, '%c' converts the integer 90 to character 'Z'.

Here storage class static is not allowed. 

The range of int is - 32768 to + 32767. 40000 is exceeding + 32767 by 7233 and 45000 exceeding + 32767 by 12233. So, 7233^th and 12233^th integers from the other side of range is - 25536 and - 20536.

Here 't' is a pointer to a constant integer. But program wants to change the value of t by statement ++(*t), which is not possible. Hence, it will give the error 'Cannot modify the constant object'.

Here '/**/' is the comment and is the simple statement like d = t/c. Hence, it gives the output 5.

Res = (t+c)/8 = (9.0 + 78.50)/8 = 87.50/8 = 10.937500 Due to '%.4f', it will print 10.9375.

The return data type of printf() statement is integer. It returns the integer, which represents the number of characters printed.

'j' is used before the declaration. Hence, the compiler will give the 'Undefined symbol j' error.

Factorial of 8 is out of range from the int data type (-32768 to +32767). Factorial of 8 is 40320, i.e. it goes to other end and displays the (40320 - 32767) = 7553^th term from the -ve side. Hence, the output will be - 25216.