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Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Questions  >  Consider the following C code for process P1 ... Start Learning for Free
Consider the following C code for process P1 and P2. a=4, b=0, c=0 (initialization)
P1               P2
if (a < 0)      b = 10;    
c = b-a;       a = -3;
else
c = b+a;
If the processes P1 and P2 executes concurrently (shared variables a, b and c), which of the following cannot be the value of ‘c’ after both processes complete?
  • a)
    4
  • b)
    7
  • c)
    10
  • d)
    13
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following C code for process P1 and P2. a=4, b=0, c=0 (in...
P1 : 1, 3, 4 → c = 0+4 =4 {hence option a}
P2 : i, ii and P1 : 1, 2 → c = 10-(-3) = 13 {hence option d}
P1 : 1 , P2 : i, ii and P1 : 3, 4 → c= 10+(-3) = 7 { hence option b}
So 10 cannot be c value.
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Consider the following C code for process P1 and P2. a=4, b=0, c=0 (in...
It appears that the code got cut off. Could you please provide the complete code for both process P1 and P2?
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Consider the following C code for process P1 and P2. a=4, b=0, c=0 (initialization)P1 P2if (a < 0) b = 10; c = b-a; a = -3;elsec = b+a;If the processes P1 and P2 executes concurrently (shared variables a, b and c), which of the following cannot be the value of ‘c’ after both processes complete?a)4b)7c)10d)13Correct answer is option 'C'. Can you explain this answer?
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