#include <stdio.h>
int main()
{
int a = 1;
int b = 3;
printf("a=%d,b=%d\n", a, b);//不会有溢出问题
a = a ^ b;
b = a ^ b;
a = a ^ b;
printf("a=%d,b=%d\n", a, b);
return 0;
}
#include <stdio.h>
int main()
{
int a = 1;
int b = 3;
printf("a=%d,b=%d\n", a, b);//不会有溢出问题
a = a ^ b;
b = a ^ b;
a = a ^ b;
printf("a=%d,b=%d\n", a, b);
return 0;
}