Question

输入两个正整数，进行加减乘除运算，并得出结果

如输入3和4，显示3 4=7,3-4=-1,3*4=12,3/4=0.75

Answer 1

#include <stdio.h>

int main ()

{int a,b;

scanf("%d%d",&a,&b);

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

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

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

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

return 0;

}