C语言 编写函数同时求两个整数的和与差?答:include "stdio.h"int Add_Sub(int *p,int *q,int *s){ s=*p-*q;return *p+*q;} int main(int argc,char *argv[]){ int x,y,z;printf("Enter x & y(int)...\n");scanf("%d%d",&x,&y);printf("\nx+y = %d\n",Add_Sub(&x,&y,&z));printf("x-y = %d\n",...