int a = x , b = y ;
a|=b;
b|=a;
a|=b;
Ab XOR operation value exchange can be achieved
Swap values of the numbers a, b
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Origin www.cnblogs.com/xiaofengyu96/p/12194598.html
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int a = x , b = y ;
a|=b;
b|=a;
a|=b;
Ab XOR operation value exchange can be achieved