Goldman Sachs Interview Question
write a program to determine if a number can be expressed as 2^x. for example 4 is 2^2.
Interview Answer
Anonymous
Oct 10, 2012
bool isPowerOf2(int x) { return 0 == (x - 1) & x; }
1
write a program to determine if a number can be expressed as 2^x. for example 4 is 2^2.
Anonymous
bool isPowerOf2(int x) { return 0 == (x - 1) & x; }
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