int x, y;
scanf("%d%d",&x,&y);
int temp;
temp = x;
x= y;
y = temp;
请采纳,谢谢
#include
int main()
{
int x,y;
scanf("%d%d",&x,&y);
x=x+y;
y=x-y;
x=x-y;
}
//不需要临时变量
void swap(char *x, char *y) {
char temp;
temp=*x;
*x=*y;
*y=temp
}
void main() {
char x,y;
x=getchar();
y=getchar();
swap(&x, &y);
}