# include <stdio.h>
int main()
{
float f,c;
scanf("%f",&f);
c=(5.0/9)*(f-32);
printf("f=%f\n c=%f\n",f,c);
return 0;
}

自己上机测试  这应该是温度转换

华氏温度准换成摄氏温度，再把二个输出来