Exchange the values of two variables. The third variable (two methods) and the third variable

Exchange the values of two variables. The third variable (two methods) and the third variable

// Exchange the values of two variables. The third variable is not used. // There are two solutions. One is an arithmetic algorithm, and the other is a ^ (exclusive or) // exclusive or: The same is 0, and the difference is 1. It is equivalent to subtraction. # Include <stdio. h> int main () {int a = 8; int B = 9; printf ("Initial State: a = % d, B = % d \ n",, b); a = a + B; B = a-B; a = a-B; printf ("arithmetic exchange: a = % d, B = % d \ n ", a, B); a = a ^ B; B = a ^ B; a = a ^ B; printf ("XOR or exchange: a = % d, B = % d \ n ", a, B); return 0 ;}