Pergunta de entrevista da empresa MITRE

How would you duplicate a string without using a temp variable?

Respostas da entrevista

Sigiloso

12 de out. de 2015

var1 = 1011 var2 = 0010 var1 = var1 xor var2 // var1 = 1001 var2 = var1 xor var2 // var2 = 1011 var1 = var1 xor var2 // var1 = 0010 var1 = 0010 var2 = 1011

1

Sigiloso

10 de fev. de 2012

something to do with XORing the bits

Sigiloso

21 de set. de 2014

Maybe iterate through it with a loop? Or recurse (not sure about the latter)