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charlespunk/CTCI 17.1

Created March 15, 2013 15:53
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CTCI 17.1
Write a function to swap a number in place (that is, without temporary variables).
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CTCI 17.1.java
public static void swap(int a, int b){
a = a - b;
b = a + b;
a = b - a;
System.out.println("a is " + a);
System.out.println("b is " + b);
}
public static void swap(int a, int b){
a = a ^ b;
b = a ^ b;
a = a ^ b;
System.out.println("a is " + a);
System.out.println("b is " + b);
}
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