代码文本:
#include "stdio.h"
int main(int argc,char *argv[]){
int n,x,y;
printf("Enter n(int 0 if(scanf("%d",&n)!=1 || n<1 || n>9999){ printf("Input error, exit...\n"); return 0; } scanf("%d%d",&x,&y); if(n&1) printf("%d:\t%d-%d=%d\n",n,x,y,x-y); else printf("%d:\t%d+%d=%d\n",n,x,y,x+y); return 0; }
不看图吧,因为考试里面好像没图