How to solve the quiz of fundamental 1.0 Question no.5

#1

unsigned A = -25;
cout<<A;

//Output?? and How?

#2

Hello @jatinkumarjk2001,

The output of this question depends upon the data modifiers:

  1. Let’s say you assign -2 to an unsigned integer, then for 32 bits int it will results in 2^32 - 2
    It would be 2^16 - 2 for short unsigned integer
    Similarly, for long long unsigned integer, it would be 2^64 - 2
    And for signed integer, it will be -2.

  2. As an unsigned type cannot store the negative sign, thus the compiler converts it into an above mentioned unsigned representation.

  3. It’s not a necessity to mention “int” as these datatype modifiers are for int only.

So, using point 1, the output of your code would be:
for 64 bits int: 2^64 - 25

Hope, this would help.
Give a like, if you are satisfied.

#3

but the answer is only 2^32

#4

Hey @jatinkumarjk2001,

2^32 is for 32 bit int.
But, it should be 2^32 -25
Can you share your code?

#5

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