新手，写的长了点但好理解#include <stdio.h>int main() {    float a=0;    int z=0;    char b=0;    int ret=0;    scanf("%f %s",&a,&b);    if(b=='y')    {      ret=1;    }    else    {        ret=0;    }    if((int)a!=a/1)    {       if(a<=1)       {        z=20+5*ret;        printf(&quo...