a,b 都小于100，是非负整数

#include<stdio.h>

int main()

int a,b;

int x=a+b,y=a-b,z=a*b;

scanf("%d %d ",&a,&b)；

printf("%d+%d =%d\n",a,b,x);

printf("%d-%d = %d\n",a,b,y);

printf("%d*%d =%d\n",a,b, z);

float w=a/b;

if(w=a%b==0){ w=a/b;

printf("%d / %d =%d\n",a,b,w);

}

else {w=a*0.1/b;

printf("%d / %d=%f\n",a,b,w);}

return 0;

能用电脑截图？看不清楚啊