How will you swap two numbers without using a temp
Resposta da entrevista
Sigiloso
1 de mar. de 2013
int a = 5; int b = 10;
a = a + b; // i.e. a = 5 + 10 = 15;
b = a - b; // i.e. b = 15 - 10 = 5;
a = a - b; // i.e. a = 15 - 5 = 10;
Final Answer is a = 10 and b = 5.