10. Predict the output or error(s) of the following c code

1
2
3
4

 main()
{
	  printf("%x",-1<<4);
}

Answer:
fff0

Explanation:
-1 is internally represented as all 1’s. When left shifted four times the least significant 4 bits are filled with 0’s.The %x format specifier specifies that the integer value be printed as a hexadecimal value.