小狐狸的X · 发布于 2022-10-21 · 浏览 642 回复 0

//freopen("1110.in","r",stdin);
//freopen("1110.out","w",stdout);
double F,C;
scanf("%lf",&F);
C=5*(F-32)/9;
printf("%.5lf",C);
return 0;