写出下列程序的运行结果#include using namespace std;void SwapA(int x, int y){ int tmp;tmp =x;x=y;y=tmp;}void SwapB(int &x, int &y){int tmp=x;x=y;y=tmp;}void SwapC(int *xp, int *yp){int tmp;tmp=*xp;*xp=*yp;*yp=tmp;}int main( ){int a=35, b=8,c=12;cout<<"a/b+c="<