多种算法实现两数交换

int a=22,b=55;
 int t;
 t=b;
 b=a;
 a=t;

 printf("第一种算法交换两数的值:a=22,b=55 交换后a=%d,b=%d/r/n",a,b);

 a=22,b=55;
 a = a + b;
 b = a - b;
 a = a - b;

 printf("第二种算法交换两数的值:a=22,b=55 交换后a=%d,b=%d/r/n",a,b);

 

 a=22,b=55;
 a = a ^ b;
 b = a ^ b;
 a = a ^ b;

 printf("第三种算法交换两数的值:a=22,b=55 交换后a=%d,b=%d/r/n",a,b);

 

 a=22,b=55;

 a = a - b;
 b = b + a;
 a = b - a;

 printf("第四种算法交换两数的值:a=22,b=55 交换后a=%d,b=%d/r/n",a,b);

 

 a=22,b=55;

 a = b - a;
 b = b - a;
 a = a + b;

 printf("第五种算法交换两数的值:a=22,b=55 交换后a=%d,b=%d/r/n",a,b);