编程从键盘输入两个整数分别给变量a和b,要求在不借助于其他变量的条件下,将变量a和b的值实现交换

#include
int main()
{
\x09int a,b;
\x09scanf("%d%d",&a,&b);
\x09a = a+b;
\x09b = a-b;
\x09a = a-b;
\x09printf("%d %d",a,b);
\x09return 0;
}