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GO Classes 2023 | Weekly Quiz 4 | Question: 2

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Which of the following expressions will evaluate to true?
INT_MIN is the minimum signed integer in the system which is using 2's complement representation for signed integers and variables are defined as follows:

int x = 5, i = -7;
  1. ((x >> 2) << 2) <= x
  2. ~ 1&& 1
  3. INT_MIN == -INT_MIN
  4. -10 < i <-1
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int x = 5, i = – 7;

  1. ((x>>2)<<2)<=x
    5 in 4-bit system is 0101
    (0101 >>2) <<2   
    ( 0001 ) << 2
    0100  which is 4
    4 <= 5 is True
     
  2. ~1 && 1
    1 : 0001         ~1: 1110       Both are non-zero
    So    ~1 && 1  is True 
  1. INT_MIN is the minimum signed number in the system. 
    So in a 4 bit system,  INT_MIN = 1000
    Now,  – INT_MIN = 2’s Complement of INT_MIN = 1000
    Hence,   INT_MIN == – INT_MIN  is True  
  1.  −10 < i < −1
    Relational operators ( <, <=, >, >= ) are Left to Right associative 
    So,  (( −10 < – 7 ) < −1 )  
           ( 1 < – 1 )  is False
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