Pergunta de entrevista da empresa Qualcomm

Swapping integers without using additional space

Respostas da entrevista

Sigiloso

3 de mai. de 2012

a= a(xor)b, b= a(xor)b, a=a(xor)b

7

Sigiloso

24 de jul. de 2012

a = a + b; b = a - b; a = a - b;

1

Sigiloso

24 de jul. de 2012

Doesn't work if a and b are 32 bit integer. We might have over flow in a+b. a(xor)b will not have any overflow

1